R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V SERIES
3 to 5 Cells Li-ion Battery Protector IC
NO.EA-263-1600711
OUTLINE
The R5432V is a high voltage CMOS-based protection IC for overcharge /discharge of rechargeable three-cell / four-cell / five-
cell Lithium-ion / Lithium- polymer battery, further include a short circuit and the protection circuits against the excess discharge
current and excess charge current.
Each of these ICs is composed of eighteen voltage detectors (fourteen for 3cell protection type, sixteen for 4cell protection
type), a reference circuit, a delay circuit, a short detector circuit, an oscillator, a counter and a logic circuit.
The output of COUT is P-channel open-drain type, and DOUT is CMOS type.
If the overcharge voltage or overcharge current is detected by the R5432V, after the preset output delay time, the output of
COUT becomes Hi-Z.
While the overdischarge voltage or current is detected, after the preset output delay time, the output of DOUT becomes ”L”.
After detecting overcharge voltage, when the cell voltage returns lower than the overcharge released voltage, then overcharge
is released and the output of COUT becomes “H”. After detecting overcharge current, by disconnecting a charger and
connecting a load, then overcharge current is released and the output of COUT becomes “H”.
After detecting overdischarge voltage, when the cell voltage becomes the released voltage from overdischarge or more,
then overdischarge is released and the output of DOUT becomes “H”. After detecting overdischarge current and short circuit,
by disconnecting the load, the function of the output of DRAIN pin, the external NMOSFET turns on, and VMP pin voltage is
pulled down by the resistance connected to GND and released overdischarge current or short and the output of DOUT becomes
“H”.
By forcing a certain voltage to SEL1 and SEL2 pins, the testing time of protection circuits can be short. Specifically,
overcharge, discharge, over current delay time can be shortening into approximately 1/80.
The R5432V can protect 6-cell or more by connecting 2 pieces of the R5432V in cascade. High side IC’s COUT and
DOUT must connect to CTLC and CTLD respectively of the low side IC. As a result, the signal of the high side of COUT and
DOUT is transmit to the lower side IC, and control FETs for charge and discharge.
The R5432V has cell-balance function to solve the unbalance condition of serially connected cells. If cell voltage is
beyond the cell balance detector threshold, by the output of the cell balance control pin, the external NMOSFET turns on, and
a current path is made, and during charge, charge current is bypassed, otherwise, cell is discharged until the cell voltage
becomes the released voltage from cell-balance operation.
If the connection between a cell and a protection board is broken, the open-wire condition is detected by the R5432V, and the
output of COUT becomes Hi-Z. After detecting the open-wire, when the cell and the protection board is connected again, the
open-wire detector is released and the output of COUT becomes “H”.
FEATURES
Absolute Maximum Rating ............................................... 30V
Supply Current ................................................................. Typ. 12.0µA
Detector thresholds range and accuracy
Overcharge detector threshold......................................... 3.6V to 4.5V (5mV step) (n=1, 2, 3, 4, 5) (±25mV)
Overdischarge detector threshold .................................... 2.0V to 3.0V (5mVstep) (n=1, 2, 3, 4, 5) (±2.5%)
Excess discharge current threshold 1 .............................. 0.1V to 0.3V (10mVstep) (±20mV) for BA/BB/BC ver.
0.1V to 0.2V (10mV step) (±20mV) for AD/BD ver.
Excess discharge current threshold 2 .............................. 0.45V/0.60V for BA ver.
0.25V to 0.40V for BB/BC ver.
0.25V/0.3V(Vdet3-1+0.1V or more) for AD/BD ver.
1


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Short detector threshold ..................................................... 1.00V for BA ver.
0.75V for BB/BC ver.
Vdet3-2 x 1.67 for AD/BD ver.
Excess charge current threshold ........................................ -0.05V (±30mV), -0.1V (±30mV), -0.2V (±30mV), -0.4V (±40mV)
Overcharge released voltage.............................................. VDET1n-0.1V to 0.4V (50mV steps) (n=1, 2, 3, 4, 5)
Overdischarge released voltage ......................................... VDET2n+0.2V to 0.7V (100mV steps) (n=1, 2, 3, 4, 5)
up to 3.4V
Cell-balance detector threshold .......................................... 3.45V to 4.45V (5mV steps) (n=1, 2, 3, 4, 5)
Cell-balance released voltage ............................................ CBDETn-0.0V to 0.4V (50mV steps) (n=1, 2, 3, 4, 5)
Output delay time
Overcharge detector Output Delay ..................................... 1.0s
Overdischarge detector Output Delay ................................ Settable by Ext.Capacitance1
Excess discharge current detector Output Delay 1/2.......... Settable by Ext.Capacitance2
Excess charge current detector Output Delay .................... 8ms
Short detector Output Delay ............................................... 300µs
Functions
0V-battery charger ........................................... .................. acceptable/unacceptable options
Cascade connection ........................................ .................. Available. Refer to the typical application.
3/4/5 cell protection ........................................ .................. Selectable
Output Delay Time Shortening Function............................. By forcing a certain voltage to SEL pin, overcharge,
discharge voltage and current is reduced approximately 1/80.
Overcharge delay time can be shorten into around 4ms for
testing.
Cell-balance function .......................................................... Available
Cell-unbalance condition .................................................... If either of cells detects overcharge and either of cells detects
overdischarge, the output of COUT becomes “Hi-Z”, the output of DOUT becomes “L”.
Overcharge/Overdischarge released condition................... By voltage condition.
Output of COUT/DOUT ...................................................... COUT: VDD source P-channel open drain output. Normal
state “H”(VDD), Detected state “Hi-Z”.
DOUT: 12V regulator source CMOS output. Normal state
“H”(12V), Detected state “L”.
Open-wire detection ........................................................... Open-wire between VDD, VSS, VCx pin and the pack is
supervised.
Small Package.................................................................... SSOP-24
2


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

BLOCK DIAGRAMS
VC1
CB1
VC2
CB
Circuit-1
Vnochg1
CB2
VC3
CB
Circuit-2
Vnochg2
CB3
VC4
CB
Circuit-3
Vnochg3
CB4
VC5
CB5
VSS
CB
Circuit-4
Vnochg4
CB
Circuit-5
Vnochg5
odd sw
even sw
T Stop
Logic
Circuit
T Start
CTLT
VD1-1
VDD
VD2-1
VD1-2
VD2-2
VD1-3
VD2-3
VD1-4
VD2-4
VD1-5
VD2-5
Logic
Circuit
Ds
Circuit
SEL1 SEL2
R5432VxxxBA
Regulator
Regulator
Logic
Circuit
Oscillatpr
Counter
Logic
Circuit
Delay
Short
Circuit
VD3-1
VD3-2
tVDET2
VD4
SENS CT1
R5432V
NO.EA-263-160711
Logic
Circuit
CTLD
CTLC
VMP
tVDET3
CT2 DRAIN
COUT
DOUT
3


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
SELECTION GUIDE
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
R5432Vxxx$
SSOP-24
3000
Yes
Yes
xxx :Serial Number for the R5432V designating voltages such as overcharge threshold, overcharge
released voltage, Cell-balance threshold, Cell-balance released voltage, overdischarge threshold,
overdischarge released voltage, overdischarge current1/2, overcharge current, short voltage.
$ : Designation of Output delay option.
Overcharge Overdischarge
Overdischarge
Delay time
Delay time
Current Delay time1
(s) (ms)
(ms)
A 1.0 3.64×CCT1 (nF) 3.05×CCT2 (nF)
B 1.0 3.88×CCT1 (nF) 3.26×CCT2 (nF)
*capacitor for CT1: CCT1, capacitor for CT2:CCT2.
Overdischarge
Current Delay time2
(ms)
tVDET31/ 100
tVDET31/ 6
Overcharge
Current Delay time
(ms)
8
8
Short
Delay time
(µs)
300
300
: Designation of Output delay option.
Overcharge
Overdischarge 0V battery Short detector
Released condition Released condition Charge
Threshold
A Auto Release
Auto Release Acceptable
1.0V
B Auto Release
Auto Release Unacceptable
0.75V
C Auto Release
Auto Release Acceptable
0.75V
Auto Release
D with hysteresis
Auto Release Acceptable VDET32 x 1.67
cancellation
Open-wire
detection
Available
Available
Available
Available
Cascade
connection
Available
Available
Available
Available
4


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
1) Product Code List
Code
VDET1n VREL1n VCBDn VCBRn VDET2n VREL2n VDET31 VDET32 VSHORT VDET4
(V) *1 (V) *1 (V) *1 (V) *1 (V) *1 (V) *1 (V)
(V)
(V) (V)
R5432V402BA 4.350
R5432V403BA 3.900
4.050
3.800
4.200 4.200
3.500 3.500
2.400
2.500
2.700 0.200 0.600
3.000 0.100 0.600
1.000 -0.100
1.000 -0.100
R5432V404BA 4.250 4.100 4.200 4.200 2.500 3.000 0.200 0.600 1.000 -0.200
R5432V405BA 3.900 3.800 3.650 3.650 2.000 2.300 0.100 0.600 1.000 -0.200
R5432V406BA 3.650 3.550 3.500 3.500 2.500 3.000 0.300 0.600 1.000 -0.200
R5432V407BA 4.200
R5432V408BA 3.800
4.000
3.600
3.900 3.900
3.450 3.450
2.700
2.000
2.850 0.200 0.450
2.300 0.200 0.450
1.000 -0.200
1.000 -0.100
R5432V409BA 4.100
R5432V410BC 4.200
4.000
4.000
3.900 3.900
4.150 4.150
3.000
2.750
3.100 0.200 0.600
2.950 0.100 0.250
1.000 -0.200
0.750 -0.050
R5432V412BA 4.300
R5432V413BA 4.250
4.050
4.100
4.200 4.200
4.200 4.200
2.700
2.500
3.000 0.200 0.600
3.000 0.100 0.600
1.000 -0.100
1.000 -0.100
R5432V416BA 4.200 4.100 4.170 4.170 2.500 3.000 0.200 0.450 1.000 -0.100
R5432V417BC 4.200 4.100 4.180 4.180 2.500 3.000 0.100 0.400 0.750 -0.050
R5432V418BC 4.180 4.080 4.180 4.180 2.500 3.000 0.100 0.400 0.750 -0.050
R5432V419BD 3.900 3.800 3.500 3.500 2.500 3.000 0.100 0.300 0.500 -0.100
R5432V420BD 4.350 4.050 4.200 4.200 2.400 2.700 0.100 0.250 0.418 -0.100
R5432V501BA 3.900
R5432V502BA 4.250
3.700
4.100
3.800 3.600
4.200 4.190
2.000
2.800
2.300 0.200 0.600
3.000 0.100 0.450
1.000 -0.200
1.000 -0.050
R5432V503BB 4.250
R5432V504BD 4.250
4.150
4.100
4.150 4.140
4.200 4.190
2.700
2.800
3.000 0.150 0.300
3.000 0.100 0.250
0.750 -0.050
0.418 -0.050
R5432V505BD 4.250 4.100 4.200 4.190 2.500 3.000 0.100 0.250 0.418 -0.050
R5432V506BD 3.900 3.800 3.650 3.640 2.000 2.300 0.100 0.250 0.418 -0.050
R5432V507BD 4.215 4.100 4.200 4.180 2.800 3.000 0.100 0.250 0.418 -0.100
R5432V508BA 3.800
R5432V509BD 3.900
3.700
3.800
3.600 3.580
3.650 3.640
2.800
2.000
2.900 0.200 0.600
2.300 0.100 0.250
1.000 -0.100
0.418 -0.100
R5432V510BD 3.900 3.800 3.475 3.465 2.000 2.300 0.100 0.250
*1n1,2,3,4,5
0.418 -0.100
5


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
PIN DESCRIPTIONS
SSOP-24
24 2322 2120 1918 171615 1413
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
6
1 2 3 4 5 6 7 8 9 10 11 12
Symbol
CTLC
CTLD
COUT
VMP
DRAIN
DOUT
SENS
CTLT
VSS
CT1
CT2
SEL1
SEL2
CB5
VC5
CB4
VC4
CB3
VC3
CB2
VC2
CB1
VC1
VDD
Pin Description
COUT control pin
DOUT control pin
Output pin of overcharge detection, Pch OPEN DRAIN output
Pin for charger negative input
Release from Excess discharge-current threshold Pin
Output pin of overdischarge detection,CMOS output
Current sense pin
Disconnection detection movement interval setting capacitance pin
VSS pin. Ground pin for the IC
tVDET2 setting capacitance connection pin
tVDET3 setting capacitance connection pin
3cell/4cell/5cell alternative pin1
3cell/4cell/5cell alternative pin2
CELL5 Cell balance Control pin
Positive terminal pin for Cell5
CELL4 Cell balance Control pin
Positive terminal pin for Cell4
CELL3 Cell balance Control pin
Positive terminal pin for Cell3
CELL2 Cell balance Control pin
Positive terminal pin for Cell2
CELL1 Cell balance Control pin
Positive terminal pin for Cell1
VDD pin


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

ABSOLUTE MAXIMUM RATINGS
Symbol
VDD
Input voltage
VC1
VC2
VC3
VC4
VC5
VMP
VSEL1
VSEL2
Supply voltage
Item
Positive input pin for Cell1
Positive input pin for Cell2
Positive input pin for Cell3
Positive input pin for Cell4
Positive input pin for Cell5
Charger negative terminal input pin
3Cell/4Cell/5Cell alternative pin1
3Cell/4Cell/5Cell alternative pin2
VCTLC
COUT control pin
VCTLD
VSENSE
VCT1
VCT2
VCTLT
Output voltage
VCOUT
VDOUT
VDRAIN
VCB1
PD
Ta
Tstg
VCB2
VCB3
VCB4
VCB5
DOUT control pin
Current sense pin
Delay time setting pin1
Delay time setting pin2
Disconnection detection movement interval setting
capacitance pin
Output pin of overcharge detection,CMOS output
Output pin of overdischarge detection,CMOS output
Release from Excess discharge-current threshold Pin
Cell balance Control pin for Cell1
Cell balance Control pin for Cell2
Cell balance Control pin for Cell3
Cell balance Control pin for Cell4
Cell balance Control pin for Cell5
Power dissipation(1)
Operating temperature range
Storage temperature range
R5432V
NO.EA-263-160711
Rating
-0.3 to 30
VC2-0.3 to VC2+6.5
VC3-0.3 to VC3+6.5
VC4-0.3 to VC4+6.5
VC5-0.3 to VC5+6.5
-0.3 to 6.5
-0.3 to 30.0
-0.3 to VDD+0.3
-0.3 to VDD+0.3
-0.3 to VDD+25
-0.3 to 48
-0.3 to VDD+25
-0.3 to 48
-0.3 to VDD+0.3
-0.3 to 3.5
-0.3 to 3.5
-0.3 to 3.5
VDD-30 to VDD+0.3
-0.3 to VOH2+0.3
-0.3 to VOH3+0.3
VC2-0.3 to VC2+6.5
VC3-0.3 to VC3+6.5
VC4-0.3 to VC4+6.5
VC5-0.3 to VC5+6.5
-0.3 to 6.5
770
-40 to 85
-55 to 125
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mW
°C
°C
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages
and may degrade the life time and safety for both device and system using the device in the field.
The functional operations at or over these absolute maximum ratings are not assured.
(1) Refer to POWER DISSIPATION for detailed information.
7


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
ELECTRICAL CHARACTERISTICS
R5432VxxxBA
Symbol
Items
Conditions
VDD1 Operating input voltage
VDD-VSS
VDET1n
VREL1n
tVDET1
tVREL1
VCBDn
CELLn Overcharge threshold
(n=1,2,3,4,5)
CELLn Overcharge released
Voltage (n=1,2,3,4,5)
Output delay of overcharge
Output delay of
release from overcharge
CELLn balance threshold
(n=1,2,3,4,5)
Detect rising edge of supply voltage
Detect falling edge of supply voltage
VDD=VC1,VCELLn=3.5V (n=2,3,4,5),
VCELL1=3.5V→4.5V
VDD=VC1, VCELLn=3.5V
(n=2,3,4,5), VCELL1=4.5V→3.5V
Detect rising edge of supply voltage
VCBRn
CELLn balance
released threshold
(n=1,2,3,4,5)
Detect falling edge of supply voltage
VDET2n
VREL2n
CELLn Overdischarge
threshold (n=1,2,3,4,5)
CELLn Overdischarge released Voltage
(n=1,2,3,4,5)
ICT1 CT1 charge Current
VDCT1 CT1 detector voltage
tVDET2 Output delay of overdischarge
tVREL2
Output delay of
release from overdischarge
VDET31
Excess discharge-current
threshold1
VDET32
VREL3
ICT231
Excess discharge-current
Threshold2
Output delay of
release from Excess
discharge-current threshold
CT2 Charge Current1
ICT232 CT2 Charge Current2
VDCT2
tVDET31
tVDET32
tVREL3
CT2 Charge voltage
Output delay of Excess
discharge-current threshold1
Output delay of Excess
discharge-current Threshold2
Output delay of release from
Excess discharge-current
Threshold
Detect falling edge of supply voltage
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=3.5V1.5V
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=1.5V
tVDET2=CCT1×VDCT1/ICT1
CCT1=33nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
VCELL1=1.5V→3.5V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), SENSE=0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENSE=VSS0.4V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENSE=VSS0.7V
VDD=VC1, VCELLn =3.5V (n=2,3,4,5)
SENSE=0.4V, VMP=4.0V
tVDET31=CCT2×VDCT2/ICT231
CCT2=3.3nF
tVDET32=CCT2×VDCT2/ICT232
CCT2=3.3nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5)
SENS=0.4V, VMP= 4.0V
Unless otherwise specified, Ta=25°C
Min. Typ.
Max. Unit Circuit
2 25 V -
VDET1n
-0.025
VDET1n
VDET1n
+0.025
V
A
VREL1n
-0.050
VREL1n
VREL1n
+0.050
V
A
0.7 1.0 1.3 s B
11
VCBDn
-0.025
VCBRn
-0.050
VDET2n
×0.975
VREL2n
×0.975
16
VCBDn
VCBRn
VDET2n
VREL2n
21
VCBDn
+0.025
Lower of
VCBRn
+0.050
or
VCBDn
+0.025
VDET2n
×1.025
VREL2n
×1.025
350 500
650
ms
V
V
V
V
nA
B
C
C
D
D
E
1.48 1.85
2.22
VF
89 128
167 ms -
0.7 1.2
1.7 ms G
VDET31
-0.020
VDET31
VDET31
+0.020
V
H
0.500 0.600 0.700 V I
VDET31
×0.50
VDET31
×0.75
VDET31
×.00
V
H
350 500
650 nA I
2.0 3.0
4.0 µA I
1.23 1.55
1.87
VJ
7.3 10.8 14.7 ms -
1.25
1.8
2.4 ms -
0.7 1.2
1.7 ms H
8


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

Symbol
Items
Conditions
Vshort Short protection voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising of supply voltage
tshort
VDET4
tVDET4
tVrel4
VIH1
Output Delay of Short protection
Excess charge-current
threshold
Output delay of Excess
charge-current threshold
Output delay of release from
Excess
charge-current threshold
SEL1 pin “H” input voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENS=0.0V2.0V,
VMP=4.0V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=-1.0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=0.0V→-1.0V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=VSS,VMP=-1.0V→1.0V
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VIM1 SEL1 pin “M” input voltage
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VIL1 SEL1 pin “L” input voltage
VIH2 SEL2 pin “H” input voltage
VIM2 SEL2 pin “M” input voltage
VIL2 SEL2 pin “L” input voltage
CTLC1H CTLC pin “H1” input voltage
CTLC2H CTLC pin “H2” input voltage
CTLC1L CTLC pin “L” input voltage
CTLD1H CTLD pin “H1” input voltage
CTLD2H CTLD pin “H2” input voltage
CTLD1L CTLD pin “L” input voltage
VOL2 DOUT Nch ON voltage
VOL3 DRAIN Nch ON voltage
VOL4 CB1 Nch ON voltage
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
IOL=50μA, VDD=VC1, CTLD=VDD
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
VOL5 CB2 Nch ON voltage
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
VOL6 CB3 Nch ON voltage
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
VOL7 CB4 Nch ON voltage
VOL8 CB5 Nch ON voltage
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
Min.
0.7
Typ.
1.0
R5432V
NO.EA-263-160711
Max. Unit Circuit
1.7 V K
180 300 550 µs K
VDET4
-0.030
VDET4
VDET4
+0.030
V
L
5 8 11 ms L
0.7
VDD
-0.3
4.0
VSS
-0.3
VDD
-0.3
4.0
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
1.2
0.1
0.1
VC2
+0.2
VC3
+0.2
VC4
+0.2
VC5
+0.2
0.2
1.7
VDD
+0.3
VDD/2
-0.5V
VSS
+1.0
VDD
+0.3
VDD/2
-0.5V
VSS
+0.3
VDD
+0.3
VSS
+0.3
VDD
+0.3
VSS
+0.3
0.5
0.5
VC2
+0.5
VC3
+0.5
VC4
+0.5
VC5
+0.5
0.5
ms L
VM
VM
VM
VN
VN
VN
VO
VO
VO
VP
VP
VP
VQ
VR
VS
VS
VS
VS
VS
9


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Symbol
Items
VOH1 COUT Pch ON voltage
VVR12 VR 12V output voltage (*1)
VOH2 DOUT Pch ON voltage (*1)
VOH3 DRAIN Pch ON voltage (*1)
VOH4 CB1 Pch ON voltage
VOH5 CB2 Pch ON voltage
Conditions
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLC=VSS
IOH=-5µA, VDD=VC1, CTLD=VSS,
VCELL=3.2V (n=1, 2, 3, 4, 5)
Measured to draw the current
through DOUT
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLD= VSS
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
SENS =VMP =4.0V
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=2, 3, 4, 5)
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 3, 4, 5)
Min.
VDD
-0.5
10
VVR12
-0.5V
VVR12
-0.5V
VC1
-0.5
VC2
-0.5
Typ.
VDD
-0.1
12
VVR12
-0.1V
VVR12
-0.1V
VC1
-0.3
VC2
-0.3
Max.
Unit Circuit
VT
14 V U
VU
VV
VW
VW
VOH6 CB3 Pch ON voltage
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 2, 4, 5)
VC3
VC3
-0.5 -0.3
VW
VOH7 CB4 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 5)
VC4
VC4
-0.5 -0.3
VW
VOH8 CB5 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 4)
VC5
VC5
-0.5 -0.3
VW
ILCOUT COUT pin off leak current
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
CTLC=VDD, COUT=-14V
-0.1
µA X
ICTLT CTLT Charge Current
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
145 205
264 nA Y
VDTLT CTLT detector threshold
VRTLT CTLT released voltage
VDD=VC1, VCELLn=3.2V
(n=1, 2, 4, 5)
VC3=VD1+0.2V
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
1.58 2.00 2.42 V Z
0.07 0.13 0.19 V Z
tLT
Disconnection detection
Test Interval
CCTLT×(VDTLT-VRTLT)/ICTLT
CCTLT =3.3µF
21 30
39 s -
ISS1 Supply Currnt1
ISS2 Supply Currnt2
VDD=VC1,COUT=OPEN
VCELLn=VDET1n-0.4V
(n=1, 2, 3, 4, 5)
VDD=VC1,COUT=OPEN
VCELLn=1.5V
(n=1, 2, 3, 4, 5)
12 30 µA a
10 25 µA a
VCELLn=CELLn voltage n=1, 2, 3, 4, 5
(*1) If VDD pin voltage becomes lower than the output of the regulator, the output voltage becomes almost equal to VDD.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended
operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. The
semiconductor devices may receive serious damage when they continue to operate over the recommended operating
conditions.
10


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
R5432VxxxBB/BC
Symbol
VDD1
VDET1n
VREL1n
Items
Operating input voltage
CELLn Overcharge threshold
(n=1,2,3,4,5)
CELLn Overcharge released
Voltage (n=1,2,3,4,5)
tVDET1 Output delay of overcharge
tVREL1
VCBDn
Output delay of
release from overcharge
CELLn balance threshold
(n=1,2,3,4,5)
VCBRn
CELLn balance
released threshold
(n=1,2,3,4,5)
VDET2n
VREL2n
ICT1
CELLn Overdischarge
threshold (n=1,2,3,4,5)
CELLn Overdischarge released Voltage
(n=1,2,3,4,5)
CT1 charge Current
VDCT1 CT1 detector voltage
tVDET2 Output delay of overdischarge
tVREL2
Output delay of
release from overdischarge
VDET31
Excess discharge-current
threshold1
VDET32
VREL3
ICT231
Excess discharge-current
Threshold2
Output delay of
release from Excess
discharge-current threshold
CT2 Charge Current1
ICT232 CT2 Charge Current2
VDCT2 CT2 Charge voltage
tVDET31
tVDET32
tVREL3
Output delay of Excess
discharge-current threshold1
Output delay of Excess
discharge-current Threshold2
Output delay of release from
Excess
discharge-current Threshold
Conditions
VDD-VSS
Detect rising edge of supply voltage
Detect falling edge of supply
voltage
VDD=VC1,VCELLn=3.5V
(n=2,3,4,5), VCELL1=3.5V→4.5V
VDD=VC1, VCELLn=3.5V
(n=2,3,4,5), VCELL1=4.5V→3.5V
Detect rising edge of supply voltage
Detect falling edge of supply
voltage
Detect falling edge of supply
voltage
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=3.5V1.5V
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=1.5V
tVDET2=CCT1×VDCT1/ICT1
CCT1=33nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
VCELL1=1.5V→3.5V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), SENSE=0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENSE=VSS0.4V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENSE=VSS0.7V
VDD=VC1, VCELLn =3.5V
(n=2,3,4,5)
SENSE=0.4V, VMP=4.0V
tVDET31=CCT2×VDCT2/ICT231
CCT2=3.3nF
tVDET32=CCT2×VDCT2/ICT232
CCT2=3.3nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5)
SENS=0.4V, VMP= 4.0V
Unless otherwise specified, Ta=25°C
Min.
2
VDET1n
-0.025
VREL1n
-0.050
Typ.
VDET1n
VREL1n
Max.
25
VDET1n
+0.025
VREL1n
+0.050
Unit Circuit
V-
VA
VA
0.7 1.0 1.3 s B
11
VCBDn
-0.025
VCBRn
-0.050
VDET2n
×0.975
VREL2n
×0.975
350
16
VCBDn
VCBRn
VDET2n
VREL2n
500
21
VCBDn
+0.025
Lower
of
VCBRn
+0.050
or
VCBDn
+0.025
VDET2n
×1.025
VREL2n
×1.025
650
ms
V
V
V
V
nA
B
C
C
D
D
E
1.48 1.85 2.22 V F
89 128 167 ms -
0.7 1.2 1.7 ms G
VDET31
-0.020
VDET32
-0.070
VDET31
×0.50
VDET31
VDET32
VDET31
×0.75
VDET31
+0.020
VDET32
+0.070
VDET31
×.00
V
V
V
H
I
H
350 500 650 nA I
2.0 3.0 4.0 µA I
1.23 1.55 1.87 V J
7.3 10.8 14.7 ms -
1.25 1.80 2.40 ms -
0.7 1.2 1.7 ms H
11


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Symbol
Items
Vshort Short protection voltage
tshort Output Delay of Short protection
VDET4
Excess charge-current
threshold
tVDET4
tVrel4
VIH1
Output delay of Excess
charge-current threshold
Output delay of release from
Excess charge-current
threshold
SEL1 pin “H” input voltage
VIM1 SEL1 pin “M” input voltage
VIL1 SEL1 pin “L” input voltage
VIH2 SEL2 pin “H” input voltage
VIM2 SEL2 pin “M” input voltage
VIL2 SEL2 pin “L” input voltage
CTLC1H CTLC pin “H1” input voltage
CTLC2H CTLC pin “H2” input voltage
CTLC1L CTLC pin “L” input voltage
CTLD1H CTLD pin “H1” input voltage
CTLD2H CTLD pin “H2” input voltage
CTLD1L CTLD pin “L” input voltage
VOL2 DOUT Nch ON voltage
VOL3 DRAIN Nch ON voltage
VOL4 CB1 Nch ON voltage
VOL5 CB2 Nch ON voltage
VOL6 CB3 Nch ON voltage
VOL7 CB4 Nch ON voltage
VOL8 CB5 Nch ON voltage
VOH1 COUT Pch ON voltage
12
Conditions
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=0.0V2.0V,VMP=4.0V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=-1.0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=0.0V→-1.0V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=VSS,VMP=-1.0V→1.0V
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
IOL=50μA, VDD=VC1, CTLD=VDD
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLC=VSS
Min.
0.7
180
VDET4
-0.030
5
0.7
VDD
-0.3
4.0
VSS
-0.3
VDD
-0.3
4.0
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD-0.5
Typ.
1.0
300
VDET4
8
1.2
0.1
0.1
VC2
+0.2
VC3
+0.2
VC4
+0.2
VC5
+0.2
0.2
VDD-0.1
Max.
1.7
550
VDET4
+0.030
11
1.7
VDD
+0.3
VDD/2
-0.5V
VSS
+1.0
VDD
+0.3
VDD/2
-0.5V
VSS
+0.3
VDD
+0.3
VSS
+0.3
VDD
+0.3
VSS
+0.3
0.5
0.5
VC2
+0.5
VC3
+0.5
VC4
+0.5
VC5
+0.5
0.5
Unit
V
μs
V
ms
ms
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Circuit
K
K
L
L
L
M
M
M
N
N
N
O
O
O
P
P
P
Q
R
S
S
S
S
S
T


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Symbol
Items
VVR12 VR 12V output voltage(*1)
VOH2
DOUT Pch ON voltage(*1)
VOH3 DRAIN Pch ON voltage(*1)
Conditions
IOH=-5µA, VDD=VC1, CTLD=VSS,
VCELL=3.2V (n=1, 2, 3, 4, 5)
Measured to draw the current
through DOUT
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLD= VSS
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
SENS =VMP =4.0V
Min.
10
VVR12
-0.5V
VVR12
-0.5V
Typ.
12
VVR12
-0.1V
VVR12
-0.1V
Max. Unit Circuit
14 V U
VU
VV
VOH4 CB1 Pch ON voltage
VOH5 CB2 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V,
VCELLn=3.2V (n=2, 3, 4, 5)
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 3, 4, 5)
VC1
-0.5
VC2
-0.5
VC1
-0.3
VC2
-0.3
VW
VW
VOH6 CB3 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V,
VCELLn=3.2V (n=1, 2, 4, 5)
VC3
VC3
-0.5 -0.3
VW
VOH7 CB4 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 5)
VC4
VC4
-0.5 -0.3
VW
VOH8 CB5 Pch ON voltage
ILCOUT COUT pin off leak current
ICTLT CTLT Charge Current
VDTLT CTLT detector threshold
VRTLT CTLT released voltage
tLT
Vnochgn
Disconnection detection
Test Interval
CELLn charge inhibit
maximum voltage
(n=1,2,3,4,5)-for
R5432V4xxxB
ISS1 Supply Currnt1
ISS2 Supply Currnt2
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 4)
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
CTLC=VDD, COUT=-14V
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
VDD=VC1, VCELLn=3.2V
(n=1, 2, 4, 5)
VC3=VD1+0.2V
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
CCTLT×(VDTLT-VRTLT)/ICTLT
CCTLT =3.3µF
VC5
-0.5
-0.1
145
1.58
0.07
21
VC5
-0.3
205
2.00
0.13
30
VW
µA X
264 nA Y
2.42 V Z
0.19 V Z
39 s -
VDD=VC1
VDD=VC1,COUT=OPEN
VCELLn=VDET1n-0.4V
(n=1, 2, 3, 4, 5)
VDD=VC1,COUT=OPEN
VCELLn=1.5V (n=1, 2, 3, 4, 5)
1.100 V A
12 30 µA a
10 25 µA a
VCELLn=CELLn voltage n=1, 2, 3, 4, 5
(*1) If VDD pin voltage becomes lower than the output of the regulator, the output voltage becomes almost equal to VDD.
13


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
R5432VxxxBD
Symbol
Items
VDD1 Operating input voltage
VDET1n
VREL1n
CELLn Overcharge threshold
(n=1,2,3,4,5)
CELLn Overcharge released
Voltage (n=1,2,3,4,5)
tVDET1 Output delay of overcharge
tVREL1
VCBDn
Output delay of
release from overcharge
CELLn balance threshold
(n=1,2,3,4,5)
Conditions
VDD-VSS
Detect rising edge of supply voltage
Detect falling edge of supply voltage
VDD=VC1,VCELLn=3.5V
(n=2,3,4,5), VCELL1=3.5V→4.5V
VDD=VC1, VCELLn=3.5V
(n=2,3,4,5), VCELL1=4.5V→3.5V
Detect rising edge of supply voltage
VCBRn
CELLn balance
released threshold
(n=1,2,3,4,5)
Detect falling edge of supply voltage
VDET2n
VREL2n
ICT1
VDCT1
tVDET2
tVREL2
VDET31
VDET32
VREL3
ICT231
ICT232
VDCT2
tVDET31
tVDET32
tVREL3
CELLn Overdischarge
threshold (n=1,2,3,4,5)
CELLn Overdischarge released Voltage
(n=1,2,3,4,5)
CT1 charge Current
CT1 detector voltage
Output delay of overdischarge
Output delay of
release from overdischarge
Excess discharge-current
threshold1
Excess discharge-current
Threshold2
Output delay of
release from Excess
discharge-current threshold
CT2 Charge Current1
CT2 Charge Current2
CT2 Charge voltage
Output delay of Excess
discharge-current threshold1
Output delay of Excess
discharge-current Threshold2
Output delay of release from
Excess
discharge-current Threshold
Detect falling edge of supply voltage
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=3.5V1.5V
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=1.5V
tVDET2=CCT1×VDCT1/ICT1
CCT1=33nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
VCELL1=1.5V→3.5V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), SENSE=0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENSE=VSS0.4V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENSE=VSS0.7V
VDD=VC1, VCELLn =3.5V
(n=2,3,4,5)
SENSE=0.4V, VMP=4.0V
tVDET31=CCT2×VDCT2/ICT231
CCT2=3.3nF
tVDET32=CCT2×VDCT2/ICT232
CCT2=3.3nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5)
SENS=0.4V, VMP= 4.0V
Unless otherwise specified, Ta=25°C
Min. Typ. Max. Unit Circuit
2 25 V -
VDET1n
-0.025
VREL1n
-0.050
VDET1n
VREL1n
VDET1n
+0.025
VREL1n
+0.050
V
V
A
A
0.7 1.0 1.3 s B
11
VCBDn
-0.025
VCBRn
-0.050
VDET2n
×0.975
VREL2n
×0.975
350
16
VCBDn
VCBRn
VDET2n
VREL2n
21
VCBDn
+0.025
Lower of
VCBRn
+0.050
or
VCBDn
+0.025
VDET2n
×1.025
VREL2n
×1.025
ms
V
V
V
V
500 650 nA
B
C
C
D
D
E
1.48 1.85 2.22 V F
89 128 167 ms -
0.7 1.2 1.7 ms G
VDET31
-0.020
VDET31
VDET31
+0.020
V
H
VDET32
-0.055
VDET32
VDET32
+0.055
V
I
VDET31
×0.50
VDET31
×0.75
VDET31
×.00
V
H
350 500 650 nA I
2.0 3.0 4.0 µA I
1.23 1.55 1.87 V J
7.3 10.8 14.7 ms -
1.25 1.80 2.40 ms -
0.7 1.2 1.7 ms H
14


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

Symbol
Vshort
tshort
VDET4
tVDET4
tVrel4
VIH1
VIM1
VIL1
VIH2
VIM2
VIL2
CTLC1H
CTLC2H
CTLC1L
CTLD1H
CTLD2H
CTLD1L
VOL2
VOL3
VOL4
VOL5
VOL6
VOL7
VOL8
VOH1
Items
Short protection voltage
Output Delay of Short protection
Excess charge-current
threshold
Output delay of Excess
charge-current threshold
Output delay of release from
Excess
charge-current threshold
SEL1 pin “H” input voltage
SEL1 pin “M” input voltage
SEL1 pin “L” input voltage
SEL2 pin “H” input voltage
SEL2 pin “M” input voltage
SEL2 pin “L” input voltage
CTLC pin “H1” input voltage
CTLC pin “H2” input voltage
CTLC pin “L” input voltage
CTLD pin “H1” input voltage
CTLD pin “H2” input voltage
CTLD pin “L” input voltage
DOUT Nch ON voltage
DRAIN Nch ON voltage
CB1 Nch ON voltage
CB2 Nch ON voltage
CB3 Nch ON voltage
CB4 Nch ON voltage
CB5 Nch ON voltage
COUT Pch ON voltage
Conditions
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising of supply voltage
VDD=VC1, VCELLn =3.5V (n=1,2,3,4,5)
SENS=0.0V2.0V, VMP=4.0V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=-1.0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=0.0V→-1.0V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=VSS,VMP=-1.0V→1.0V
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
IOL=50μA, VDD=VC1, CTLD=VDD
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLC=VSS
Min.
Vshort
-0.12
180
VDET4
-0.030
5
0.7
VDD
-0.3
4.0
VSS
-0.3
VDD
-0.3
4.0
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD
-0.5
Typ.
VDET32
x1.67
300
VDET4
8
1.2
0.1
0.1
VC2
+0.2
VC3
+0.2
VC4
+0.2
VC5
+0.2
0.2
VDD
-0.1
R5432V
NO.EA-263-160711
Max.
Vshort
+0.17
Unit
V
Circuit
K
550 μs K
VDET4
+0.030
V
L
11 ms L
1.7 ms
VDD
+0.3
VDD/2
-0.5V
VSS
+1.0
VDD
+0.3
VDD/2
-0.5V
VSS
+0.3
VDD
+0.3
VSS
+0.3
VDD
+0.3
VSS
+0.3
0.5
V
V
V
V
V
V
V
V
V
V
V
V
V
0.5
VC2
+0.5
VC3
+0.5
VC4
+0.5
VC5
+0.5
0.5
V
V
V
V
V
V
L
M
M
M
N
N
N
O
O
O
P
P
P
Q
R
S
S
S
S
S
VT
15


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Symbol
Items
VVR12 VR 12V output voltage(*1)
VOH2 DOUT Pch ON voltage(*1)
VOH3 DRAIN Pch ON voltage(*1)
VOH4 CB1 Pch ON voltage
VOH5 CB2 Pch ON voltage
Conditions
IOH=-5µA, VDD=VC1, CTLD=VSS,
VCELL=3.2V (n=1, 2, 3, 4, 5)
Measured to draw the current
through DOUT
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLD= VSS
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
SENS =VMP =4.0V
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=2, 3, 4, 5)
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 3, 4, 5)
Min.
10
VVR12
-0.5V
VVR12
-0.5V
VC1
-0.5
VC2
-0.5
Typ.
12
VVR12
-0.1V
VVR12
-0.1V
VC1
-0.3
VC2
-0.3
Max. Unit Circuit
14 V U
VU
VV
VW
VW
VOH6 CB3 Pch ON voltage
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 2, 4, 5)
VC3
VC3
-0.5 -0.3
VW
VOH7 CB4 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 5)
VC4
VC4
-0.5 -0.3
VW
VOH8 CB5 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 4)
VC5
VC5
-0.5 -0.3
VW
ILCOUT COUT pin off leak current
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
CTLC=VDD, COUT=-14V
-0.1
µA X
ICTLT CTLT Charge Current
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
145 205 264 nA Y
VDTLT CTLT detector threshold
VRTLT CTLT released voltage
VDD=VC1, VCELLn=3.2V
(n=1, 2, 4, 5)
VC3=VD1+0.2V
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
1.58
2.00
2.42
V
Z
0.07
0.13
0.19
V
Z
tLT
Disconnection detection
Test Interval
CCTLT×(VDTLT-VRTLT)/ICTLT
CCTLT =3.3µF
21 30 39 s -
ISS1 Supply Currnt1
ISS2 Supply Currnt2
VDD=VC1,COUT=OPEN
VCELLn=VDET1n-0.4V
(n=1, 2, 3, 4, 5)
VDD=VC1,COUT=OPEN
VCELLn=1.5V
(n=1, 2, 3, 4, 5)
12 30 µA a
10 25 µA a
VCELLn=CELLn voltage n=1, 2, 3, 4, 5
(*1) If VDD pin voltage becomes lower than the output of the regulator, the output voltage becomes almost equal to VDD.
16


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
R5432VxxxAD
Symbol
Items
VDD1 Operating input voltage
VDET1n
VREL1n
CELLn Overcharge threshold
(n=1,2,3,4,5)
CELLn Overcharge released
Voltage (n=1,2,3,4,5)
tVDET1 Output delay of overcharge
tVREL1
VCBDn
Output delay of
release from overcharge
CELLn balance threshold
(n=1,2,3,4,5)
Conditions
VDD-VSS
Detect rising edge of supply voltage
Detect falling edge of supply voltage
VDD=VC1,VCELLn=3.5V
(n=2,3,4,5), VCELL1=3.5V→4.5V
VDD=VC1, VCELLn=3.5V
(n=2,3,4,5), VCELL1=4.5V→3.5V
Detect rising edge of supply voltage
VCBRn
CELLn balance
released threshold
(n=1,2,3,4,5)
Detect falling edge of supply voltage
VDET2n
VREL2n
ICT1
VDCT1
tVDET2
tVREL2
VDET31
VDET32
VREL3
ICT231
ICT232
VDCT2
tVDET31
tVDET32
tVREL3
CELLn Overdischarge
threshold (n=1,2,3,4,5)
CELLn Overdischarge released Voltage
(n=1,2,3,4,5)
CT1 charge Current
CT1 detector voltage
Output delay of overdischarge
Output delay of release
from overdischarge
Excess discharge-current
threshold1
Excess discharge-current
Threshold2
Output delay of
release from Excess
discharge-current threshold
CT2 Charge Current1
CT2 Charge Current2
CT2 Charge voltage
Output delay of Excess
discharge-current threshold1
Output delay of Excess
discharge-current Threshold2
Output delay of release from
Excess
discharge-current Threshold
Detect falling edge of supply voltage
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=3.5V1.5V
VDD=VC1, VCELLn=3.5V
(n=2, 3, 4, 5), VCELL1=1.5V
tVDET2=CCT1×VDCT1/ICT1
CCT1=330nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
VCELL1=1.5V→3.5V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising edge of supply voltage
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), SENSE=0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENSE=VSS0.4V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENSE=VSS0.7V
VDD=VC1, VCELLn =3.5V
(n=2,3,4,5)
SENSE=0.4V, VMP=4.0V
tVDET31=CCT2×VDCT2/ICT231
CCT2=330nF
tVDET32=CCT2×VDCT2/ICT232
CCT2=330nF
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5)
SENS=0.4V, VMP= 4.0V
Unless otherwise specified, Ta=25°C
Min.
Typ.
Max. Unit Circuit
2 25 V -
VDET1n
-0.025
VREL1n
-0.050
VDET1n
VREL1n
VDET1n
+0.025
VREL1n
+0.050
V
V
A
A
0.7 1.0 1.3 S B
11
VCBDn
-0.025
VCBRn
-0.050
VDET2n
×0.975
VREL2n
×0.975
350
16
VCBDn
VCBRn
VDET2n
VREL2n
500
21
VCBDn
+0.025
Lower of
VCBRn
+0.050
or
VCBDn
+0.025
VDET2n
×1.025
VREL2n
×1.025
650
ms
V
V
V
V
nA
B
C
C
D
D
E
1.48 1.85 2.22 V F
840
1200
1560 ms -
0.7 1.2 1.7 ms G
VDET31
-0.020
VDET32
-0.055
VDET31
×0.50
350
3.5
VDET31
VDET31
+0.020
V
VDET32
VDET31
×0.75
VDET32
+0.055
VDET31
×.00
V
V
500 650 nA
5.0 6.5 µA
H
I
H
I
I
1.23 1.55 1.87 V J
700
1000
1300 ms -
7 10 13 ms -
0.7 1.2 1.7 ms H
17


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Symbol
Vshort
tshort
VDET4
tVDET4
tVrel4
VIH1
VIM1
VIL1
VIH2
VIM2
VIL2
CTLC1H
CTLC2H
CTLC1L
CTLD1H
CTLD2H
CTLD1L
VOL2
VOL3
VOL4
VOL5
VOL6
VOL7
VOL8
VOH1
Items
Short protection voltage
Output Delay of Short protection
Excess charge-current
threshold
Output delay of Excess
charge-current threshold
Output delay of release
from Excess charge-
current threshold
SEL1 pin “H” input voltage
SEL1 pin “M” input voltage
SEL1 pin “L” input voltage
SEL2 pin “H” input voltage
SEL2 pin “M” input voltage
SEL2 pin “L” input voltage
CTLC pin “H1” input voltage
CTLC pin “H2” input voltage
CTLC pin “L” input voltage
CTLD pin “H1” input voltage
CTLD pin “H2” input voltage
CTLD pin “L” input voltage
DOUT Nch ON voltage
DRAIN Nch ON voltage
CB1 Nch ON voltage
CB2 Nch ON voltage
CB3 Nch ON voltage
CB4 Nch ON voltage
CB5 Nch ON voltage
COUT Pch ON voltage
Conditions
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=4.0V
Detect rising of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENS=0.0V2.0V,
VMP=4.0V
VDD=VC1, VCELLn=3.5V
(n=1,2,3,4,5), VMP=-1.0V
Detect falling edge of supply voltage
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5) SENS=0.0V→-1.0V
VDD=VC1, VCELLn =3.5V
(n=1,2,3,4,5)
SENS=VSS,VMP=-1.0V→1.0V
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
VDD=VC1, VCELLn =3.2V
(n=1,2,3,4,5)
IOL=50μA, VDD=VC1, CTLD=VDD
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOL=50μA, VDD=VC1,
VCELLn=3.2V (n=1,2,3,4,5)
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLC=VSS
Min.
Vshort
-0.12
180
VDET4
-0.030
5
0.7
VDD
-0.3
4.0
VSS
-0.3
VDD
-0.3
4.0
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD
+2.0
VDD
-0.3
VSS
-0.3
VDD
-0.5
Typ.
VDET32
x1.67
Max.
Vshort
+0.17
Unit Circuit
VK
300 550 μs K
VDET4
8
VDET4
+0.030
V
11 ms
L
L
1.2
0.1
0.1
VC2
+0.2
VC3
+0.2
VC4
+0.2
VC5
+0.2
0.2
VDD
-0.1
1.7 ms L
VDD
+0.3
V
M
VDD/2
-0.5V
V
M
VSS
+0.3
V
M
VDD
+0.3
V
N
VDD/2
-0.5V
V
N
VSS
+0.3
V
N
VO
VDD
+0.3
V
O
VSS
+0.3
V
O
VP
VDD
+0.3
V
P
VSS
+0.3
V
P
0.5 V Q
0.5 V R
VC2
+0.5
V
S
VC3
+0.5
V
S
VC4
+0.5
V
S
VC5 V S
+0.5
0.5 V S
VT
18


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Symbol
VVR12
VOH2
VOH3
Items
VR 12V output voltage(*1)
DOUT Pch ON voltage(*1)
DRAIN Pch ON voltage(*1)
Conditions
IOH=-5µA, VDD=VC1, CTLD=VSS,
VCELL=3.2V (n=1, 2, 3, 4, 5)
Measured to draw the current
through DOUT
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
CTLD= VSS
IOH=-50μA, VDD=VC1,
VCELLn =3.2V (n=1,2,3,4,5)
SENS =VMP =4.0V
Min.
10
VVR12
-0.5V
VVR12
-0.5V
Typ.
12
VVR12
-0.1V
VVR12
-0.1V
Max. Unit Circuit
14 V U
VU
VV
VOH4
VOH5
CB1 Pch ON voltage
CB2 Pch ON voltage
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=2, 3, 4, 5)
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 3, 4, 5)
VC1 VC1
-0.5 -0.3
VC2 VC2
-0.5 -0.3
VW
VW
VOH6 CB3 Pch ON voltage
IOH=-50µA, VDD=VC1, VC1=4.5V,
VCELLn=3.2V (n=1, 2, 4, 5)
VC3 VC3
-0.5 -0.3
VW
VOH7 CB4 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 5)
VC4 VC4
-0.5 -0.3
VW
VOH8 CB5 Pch ON voltage
IOH=-50µA, VDD=VC1,
VC1=4.5V, VCELLn=3.2V
(n=1, 2, 3, 4)
VC5 VC5
-0.5 -0.3
VW
ILCOUT COUT pin off leak current
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
CTLC=VDD, COUT=-14V
-0.1
µA X
ICTLT CTLT Charge Current
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
145 205 264 nA Y
VDTLT CTLT detector threshold
VRTLT CTLT released voltage
VDD=VC1, VCELLn=3.2V
(n=1, 2, 4, 5)
VC3=VD1+0.2V
VDD=VC1, VCELLn=3.2V
(n=1, 2, 3, 4, 5)
1.58 2.00 2.42 V Z
0.07 0.13 0.19 V Z
tLT
Disconnection detection
Test Interval
CCTLT×(VDTLT-VRTLT)/ICTLT
CCTLT =3.3µF
21 30 39 s -
ISS1 Supply Currnt1
ISS2 Supply Currnt2
VDD=VC1,COUT=OPEN
VCELLn=VDET1n-0.4V
(n=1, 2, 3, 4, 5)
VDD=VC1,COUT=OPEN
VCELLn=1.5V
(n=1, 2, 3, 4, 5)
12 30 µA a
10 25 µA a
VCELLn=CELLn voltage n=1, 2, 3, 4, 5
(*1) If VDD pin voltage becomes lower than the output of the regulator, the output voltage becomes almost equal to VDD.
19


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
OPERATION
VDET1n / Overcharge Detectors (n=1, 2, 3, 4, 5)
While the cell is charged, the voltage between VC1 pin and VC2 pin (voltage of the Cell-1), the voltage between VC2 pin and VC3
pin (voltage of the Cell-2), the voltage between VC3 pin and VC4 pin (voltage of the Cell-3), the voltage of VC4 pin and VC5 pin
(voltage of Cell-4), and the voltage between VC5 pin and VSS pin (voltage of the Cell-5) are supervised. If at least one of the
cells’ voltage becomes equal or more than the overcharge detector threshold, the overcharge is detected, and COUT pin
connected to an external pull down resistance outputs "Hi-Z", and by turning off the external N-channel MOSFET by the pull-
down resister, charge cycle stops.
BA/BB/BC ver.:
To reset the overcharge and make the COUT pin level to "H" again after detecting overcharge, in such condition that a time
when all the cells’ voltages become lower than the overcharge released voltage. Then, the output voltage of COUT pin becomes
"H", and it makes an external N-channel MOSFET turn on, and charge cycle is available. The overcharge detectors have
hysteresis.
AD/BD ver.:
To reset the overcharge, when all the cell voltage become lower than the released voltage from overcharge, COUT pin becomes
“H”, charge is acceptable. After detecting overcharge, by connecting a load, and when all the cell voltage becomes lower than
the overcharge voltage detector threshold, COUT voltage becomes “H” and charge will be possible.
Internal fixed output delay times for overcharge detection and release from overcharge exist. Even if one of cells' voltage keeps
its level more than the overcharge detector threshold, and the output delay time passes, overcharge voltage is detected. Even
if the voltage of each cell becomes equal or higher than VDET1 if these voltages would be back to be lower than the overcharge
detector threshold within the output delay time, the overcharge is not detected. Besides, after detecting overcharge, each cell
voltage is lower than the overcharge detector released voltage, even if just one of cells' voltage becomes equal or more than
the overcharge released voltage within the released output delay time, overcharge is not released.
The output type of the COUT pin is P-channel open drain and "H" level of COUT pin is VDD pin voltage.
VDET2n / Overdischarge Detectors (n=1, 2, 3, 4, 5)
While the cells are discharged, the voltage between VC1 pin and VC2 pin (the voltage of Cell-1), the voltage between VC2 pin
and VC3 pin (Cell-2 voltage), the voltage between VC3 pin and VC4 pin (Cell-3 voltage), the voltage between VC4 pin and VC5
pin (Cell-4 voltage), and the voltage between VC5 pin and Vss pin (Cell-5 voltage) are supervised. If at least one of the cells’
voltage becomes equal or less than the overdischarge detector threshold, the overdischarge is detected and discharge stops
by the external discharge control N-channel MOSFET turning off with the DOUT pin being at "L".
The condition to release overdischarge voltage detector is that after detecting overdischarge voltage, all the cells' voltage
becomes higher than the overdischarge released voltage, DOUT pin becomes “H” level, and by turning on the external N-channel
MOSFET, discharge becomes possible. The overdischarge detectors have hysteresis.
The output delay time for overdischarge detect is set with an external capacitor CCT1 connected to CT1 pin. If at least one of
the cells' voltage becomes down to equal or lower than the overdischarge detector threshold, and the voltage of each cell
would be back to higher than the overdischarge detector threshold within the output delay time, the overdischarge is not
detected. The output delay time for release from overdischarge is also set internally.
After detecting overdischarge, supply current would be reduced and be into standby by halting unnecessary circuits and
consumption current of the IC itself is made as small as possible.
When a cell voltage equals to zero, if the voltage of each cell is lower than the charge inhibit maximum voltage, charge is not
acceptable. All the cell voltages are higher than the charge inhibit maximum voltage, COUT pin becomes "H" and the IC allows
the system to charge.
The output type of DOUT pin is CMOS having "H" level around 12V of the internal regulator and "L" level of VSS.
20


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
VDET3-n (n=1, 2) /Excess discharge-current Detector, Short Circuit Protector
When the charge and discharge is acceptable, SENS pin voltage is supervised, if the load is short and SENS pin voltage
becomes equal or more than excess discharge current threshold, and equal or less than the short detector threshold, the status
becomes excess discharge current detected condition. If SENS pin voltage becomes equal or more than the short circuit
detector threshold, the status becomes short circuit detected, then DOUT pin outputs "L" and by turning off the external
MOSFET, the IC prevents the circuit from flowing large current. The excess discharge current detector has two thresholds, and
each threshold has the output delay time. In terms of the output delay times, the delay time for the excess discharge current
detector 2 is set shorter than the excess discharge current 1.
The output delay times for the excess discharge-current detectors are set by an external capacitor CCT2 connected to CT2 pin.
A quick recovery of SENS pin level from a value between the excess discharge current detector and the short circuit detector
threshold within the delay time, may keep the status as before excess discharge current detected. Output delay time for the
release from excess discharge-current detection is also set internally.
When the short circuit protector is enabled, the delay time exists as well as other protection circuits.
Between the drain of the external FET connected to DRAIN pin, and the drain of an external FET connected to COUT and DOUT,
an external resistor should be mounted to release from overdischarge.
After an excess discharge-current or short circuit protection is detected, an external FET connected to DRAIN pin turns on and
the resistance of release from the excess-discharge current is connected to VSS. After detecting the excess discharge current
or short circuit, load is removed and opened, VMP pin level is connected to the VSS pin level, through the pulled down resistor
for release from excess discharge, and when the VMP pin becomes equal or less than VREL3, the circuit is released from excess
discharge or short automatically. When the excess-discharge current is released, the external FET connected to DRAIN pin
turns off and resisters for the release from excess-discharge current status is separated from VSS.
VDET4/ Excess charge-current detector
When the battery pack is chargeable and discharge is also possible, VDET4 senses SENS pin voltage. For example, in case
that a battery pack is charged by an inappropriate charger, excess current flows, then the voltage of SENS pin becomes equal
or less than the excess charge-current detector threshold, then the output of COUT pin becomes "Hi-Z", and by turning off the
external N-channel MOSFET with the pull-down resister, flowing excess current in the circuit is prevented.
Output delay of the excess charge current is internally fixed. Even the voltage level of SENS pin becomes equal or lower than
the excess charge-current detector threshold, if the voltage becomes higher than the excess charge current threshold within
the delay time, the excess charge current is not detected. Output delay for the release from excess charge current exists as
well as other protection circuits.
VDET4 can be released by disconnecting a charger and connecting a load and when the VMP pin voltage becomes equal or
more than VREL3.
Operation against cell unbalance
If one of the cells detects overcharge and either of the cells detects overdischarge, both outputs of COUT and DOUT become "L".
CTLC/CTLD pin
If the ICs are stacked and function with two chips, by connecting COUT and CTLC, and connecting DOUT and CTLD shown as
in the example circuit (10-cell protection), overcharge, overdischarge, open-wire state can be transferred. If stacked connection
is unnecessary, CTLC/CTLD pins must be set at VSS voltage level.
If CTLC/CTLD pins are in the range of VSS ± 0.3V, or larger than VDD+2.0V, the IC operates in normal way.
By forcing VDD voltage level (between VDD-0.3V and VDD+0.3V) to CTLC pin, the output of COUT connected an external pull-
down resister can be forcibly set to "L". However, if short circuit is detected, the output of COUT cannot be made "L".
By forcing VDD voltage level (between VDD-1.0V and VDD+3.0V) to CTLD pin, the output of DOUT can be forcibly set to "L".
21


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
If the voltage in the range from Vss+0.3V to VDD-0.3V is forced to the CTLC/CTLD pin, the operation may change by the voltage
between VDD and VSS.
The voltage in the range from VSS + 0.3V to VDD-0.3V should not be forced to CTLC/CTLD continuously.
CTL pin input and outputs of COUT and DOUT
CTLC/CTLD pin input
COUT/DOUT external FET
equal or more than VDD+2.0
Normal Operation
VDD-0.3V to VDD+0.3V
Forced off
VSS-0.3 to VSS+0.3
Normal Operation
Open, other than the above
Indefinite
SEL1, SEL2 pin
SEL1 and SEL2 pins are used as switch over 3-cell protector, 4-cell protector and 5-cell protector. If 4-cell protection is selected,
by forcing VSS voltage level to SEL1 pin and forcing VDD voltage
level to SEL2 pin, the operation of 5th cell's protection circuit, the signal is shut down, therefore, even if the VC5 is shortened
to GND, overdischarge is not detected and operates as a 4-cell protector IC.
To select 3-cell protection mode, by forcing VDD voltage level to SEL1 pin, VSS voltage level to SEL2 pin, the operation of 5th
cell and 4th cell stop, and the signal is cut off. Therefore, if VC4, VC5 and VSS are shorted, overdischarge is not detected and
operates as a 3-cell protector IC.
SELn pins must be set as VDD voltage or VSS voltage level.
Depending on the combination of SEL1 pin and SEL2 pin input, delay time shortening function mode 1 (down to 1/100 delay)
or delay time shortening function mode 2 (overcharge detector threshold delay time is shortened into 4ms) is realized.
Middle voltage of the table below means in the range from 4.0V to VDD/2-0.5V.
SEL1 and SEL2 pin input combination, and the operation mode
SEL1 pin input
SEL2 pin input
Operation Mode
High
High
5-cell protector
Low
High
4-cell protector
High
Low
3-cell protector
Low Low Delay shortening mode 1 for 5-cell protector
Low
Middle
Delay shortening mode 1 for 4-cell protector
Middle
Low
Delay shortening mode 1 for 3-cell protector
Middle
Middle
Delay shortening mode 2 for 5-cell protector
Middle
High
Delay shortening mode 2 for 4-cell protector
High
Middle
Delay shortening mode 2 for 3-cell protector
CT1, CT2 pin
CT1 and CT2 pins are used for setting the output delay time of overdischarge (tVDET2), the excess discharge current 1 (tVDET31),
and the excess discharge current 2 (tVDET32) by connecting external capacitors CCT1 and CCT2.
tVDET2 can be set with CT1 pin. tVDET31 and tVDET32 can be set with CT2 pin.
(1) tVDET2 external capacitor CCT1 setting
tVDET2 can be set as in the next formula.
Delay time code : A
tVDET2(msec) = 3.64 × CCT1(nF)
Delay time code : B
tVDET2(msec) = 3.88 × CCT1(nF)
22


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

(2) tVDET31 and tVDET32 external capacitor CCT2 setting
tVDET31 and tVDET32 can be set as in the next formulas.
Delay time code : A
tVDET31(msec) = 3.05 × CCT2(nF)
tVDET32(msec) = tVDET31/100
R5432V
NO.EA-263-160711
Delay time code : B
tVDET31(msec) = 3.26 × CCT2(nF)
tVDET32(msec) = tVDET31/6
Cell balance function CB circuit-n (n=1,2,3,4,5)
While a battery is being charged, and the cell voltage is beyond the cell balance voltage
VCBDn (n=1,2,3,4,5) , against the cell which becomes equal or more than the cell balance voltage VCBDn, the output of CBn pin
(n=1,2,3,4,5) becomes "H" and an external N-channel transistor for cell balance turns on, and discharge path is connected in
parallel with the cell and charge current is reduced. When the cell voltage becomes equal or less than the cell balance released
voltage VCBRn (n=1,2,3,4,5), then cell balance function is released and the output of CBn pin (n=1,2,3,4,5) becomes "L".
The resister used for the discharge path, absolute ratings must be cared.
If the cell balance function is unnecessary, CBn pin must be left open.
Open-wire Detector Function
Open-wire detect of VDD (VC1) and VSS for 5-cell protector
If VDD line is cut, the voltage between VC1 and VC2 is less than 0V.
If VSS line is cut, the voltage between VC5 and VSS is less than 0V.
The voltage is detected by the 0V-detector circuit.
If open-wire is detected, the P-channel open drain of the COUT turns off.
Open-wire detector for VC2, VC3, VC4, VC5 for 5-cell protection
When using the 5-cell protection, the voltage of VDD (= VC1) becomes lower than VC2 voltage if the connection between the
battery and VDD (= VC1) is open. And, the voltage of VSS becomes higher than VC5 voltage if the connection between the
battery and VSS is open. The voltage variation is detected as “Open-wire”. When the open-wire is detected, the P-channel
open drain of the COUT turns off.
In case of the 3.3µF capacitor is attached to the CTLT pin, open-wire detector operates every 30 seconds. The built in switch
of VC1, VC3, VC5 cell, and the switch attached to the VC2 and VC4 turn on alternatively by the even_sw and the odd_sw
signal.
The internal impedance of the cell whose switch turns on becomes low for about 1.2 seconds by the low resistance connected
to the switch. If the wire is not broken, the capacitor of the CTLT is discharged and the next cycle starts for checking.
While the wire is broken, the difference of the internal impedance of the IC generated by the switch's tuning on makes VC shift
and detected by the comparator for VDET1. If the open-wire is detected and the condition continues for about 4ms, then even_sw
and odd_sw turn off and the capacitor of CTLT is discharged and the P-channel open drain of the COUT turns off. While the
overdischarge voltage is detected, the open-wire of VC2, VC3, VC4 and VC5 does not operate.
Open-wire detector for VDD (VC1) and VSS for 10-cell protection
If the ICs are connected in cascade, the VDD of the high side IC and VSS (VSS2) of the low side IC, the open-wire detector is
able to work as well as 5-cell protection type.
As for the VSS (VSS1) of high side IC and VDD (VDD2) of low side IC, if they are connected with common one wire from the battery,
and if the wire is broken, two lines, VSS1 and VDD2's wire are broken, as a result, open-wire may not be able to be detected
correctly.
As for the VSS1 and VDD2, connect with two wires so that either VSS1 or VDD2 is connected to the battery, and by the pull-down
23


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
resistance of COUT of high side is connected to the VDD2 of the low side IC, if either of VSS1 or VDD2 breaks the wire, the open-
wire detector is able to operate.
Refer to the typical application circuit. (10-cell, cell-balance, open-wire detector are in use.)
*Limitation of the open-wire detector for VC2, VC3, VC4, VC5.
If the open-wire detecting function is necessary, confirm the limitations below;
External components must be
CCTLT=3.3µF
CCT1 range: from 0.47µF to 1.0µF
CVCx=0.1µF
Even if the protection IC does not detect overdischarge, if the cell voltage is low, depending on the distribution of the ICs, cell
balance state, the operating environment, the characteristics of the external components, open-wire function may not operate
correctly.
During the delay time of the overcharge voltage, if the open-wire is detected, the overcharge detect operation is once cancelled,
and the open-wire operation will be dominant. During the open-wire detection, even if the cell voltage becomes equal or more
than the overcharge detector threshold, overcharge is not detected. In this case, after detecting open-wire operation, if the cell
voltage is still equal or more than the overcharge detector threshold, overcharge detector operation starts again. For this reason,
overcharge detector output delay time may longer than 1s. (Refer to the timing chart.)
During the overdischarge delay time, if the open-wire detector's operation starts, the overdischarge detector's operation is once
cancelled and the open-wire operation will be dominant. During the open-wire, detector's operation is active, even if the cell
voltage becomes equal or less than the overdischarge detector threshold, the overdischarge detector does not start. In this
case, after detecting open-wire operation, if the cell voltage is still equal or less than the overdischarge detector threshold,
overdischarge detector operation starts again. For this reason, the output delay time of overdischarge detector may be longer
than the preset value. (Refer to the timing chart.)
Charge Inhibit Detector Circuit Vnochg-n (n-1,2,3,4,5)
In the R5432VxxxBB, for each cell, charge inhibit detector is built-in. If either of cells’ voltage is lower than the
charge inhibit voltage, when a charger is connected to the battery pack, charge inhibit is detected and COUT
with external pull-down becomes “Hi-Z” and an external MOSFET turns off by the pull-down resistance and
charge stops.
When the charge inhibit is detected, the cell voltage which is inhibit charge is equal or lower than the
overdischarge detector threshold, therefore the output of COUT becomes “Hi-Z”, and the output of DOUT
becomes “L”, and both external FETs turn off.
24


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

TIMING CHART
Overcharge, Excess charge current
VC1-VC2
VDET11
VREL11
R5432V
NO.EA-263-160711
VC2-VC3
VDET12
VREL12
t
VC3-VC4
VDET13
VREL13
t
VC4-VC5
VDET14
VREL14
t
VC5-Vss
VDET14
VREL14
t
SENS
VDET31
VSS
VDET4
VMP
VDET31
VSS
VDET4
COUT
VDD
VMP
Charge/
Discharge
current
charge
0
discharge
t
t
tVDET1
tVREL1
tVDET1
tVDET4
tVREL1
t
tVREL4
t
t
connect charger connect load connect charger
connect
load
open
connect
charger
charger open
& connect load
25


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Overdischarge, Excess discharge current1/2, Short detector
VC1-VC2
VREL21
VDET21
VC2-VC3
VREL22
VDET22
VC3-VC4
VREL23
VDET23
VC4-VC5
VREL24
VDET24
VC5-Vss
VREL24
VDET24
SENS
Vshort
VDET3-2
VDET3-1
VSS
VDET4
VMP
t
t
t
t
t
t
VSS
DOUT
VR12V
VSS
Charge/
Discharge
current
charge
0
discharge
tVDET21
tVREL21
tVDET21
tVDET31
tVDET32
tshort
t
tVREL21
tVREL3
tVREL3
tVREL3
t
t
connect connect
load charger
connect
connect
load open charger
connect
connect
connect
load open load open load open
26


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

CELL BALANCE OPERATION
In the case that CELL1 operates CELL balance
・VC1-VC2
VDET11
CBDET1
R5432V
NO.EA-263-160711
CBREL1
VREL11
・CB1-VC2
 (Voltage
di f f e r e n c e )
・COUT
VDD
Cell balance operation
tVDET1
Over charge state
t
t
・Charge/
Discharge
current
Charge
current
0
Discharge
current
t
t
charge current
charge current -
bypass current
bypass discharge discharge
current current + current
bypass current
idle
27


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Balance operation with CELL1 and CELL2
Cellx
voltage
VDET1x
CBDETx
CBRELx
VREL1x
Cell1
Cell2
CBx
o u t pu t
COUT
o u t pu t
VDD
Charge/
Di sc h ar ge
current
Charge
current
0
Discharge
current
Cell1
Cell2
charger
charger
CB1 operating
CB2 operating
tVDET1
Over charge state
charger - bypass
bypass
charger - bypass bypass
idle
idle
t
t
t
t
28


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Open-wire Detection
Open-wire detector's operation of VC2, VC3, VC4, and VC5 for 5-cell protector
In case of the 3.3µF capacitor is attached to the CTLT pin, open-wire detection operates every 30 seconds. The
built in switch of VC1, VC3, VC5 cell, and the switch attached to the VC2 and VC4 turn on alternatively by the
even_sw and the odd_sw signal.
The internal impedance of the cell whose switch turns on becomes low for about 1.2 seconds by the low resistance
connected to the switch in serial. If the wire is not open, the capacitor of the CTLT is discharged and the next cycle
starts for checking.
While the wire is open, the difference of the internal impedance of the IC generated by the switch's tuning on
makes VC shift and detected by the comparator for VDET1. If the open-wire is detected and the condition
continues for about 4ms, then even_sw and odd_sw turn off and the capacitor of CTLT is discharged and the P-
channel open drain of the COUT turns off. While the overdischarge voltage is detected, the open-wire of VC2,
VC3, VC4 and VC5 does not operate.
The timing chart of open-wire of VC2, VC3, VC4, VC5 is shown below:
CTLT Pin
odd_sw
(IC Internal signal)
30seconds (CTLT = 3.3µF)
0V
1.2seconds (CTLT = 3.3µF)
even_sw
(IC Internal signal
VC3, VC5 open-wire
COUT Output
(VC3 at open-wire
VC2, VC4 open-wire
VC3, VC5 open-wire
At VC3 at
Open-wire
VC3 Voltage
1)
Open-wire
VDET1detection level
0V
1) The change of VC is not always increasing. Depending on the cell balance or the internal impedance, the VC increases or
decreases.
29


R5432V (RICOH)
3 to 5 Cells Li-ion Battery Protector IC

No Preview Available !

Click to Download PDF File for PC

R5432V
NO.EA-263-160711
Overcharge detector operation and Open-wire detector operation
The output delay time of overcharge is normally set at 1s, however, the effect of the open-wire detector, the output delay time
may be longer than 1s.
Case 1: During the operation of detecting overcharge, if the open-wire is detected, once the operation of the overcharge
detector is cancelled, and after detecting the open-wire, the operation of the overcharge detector starts again.
Case 2: During the operation of the open-wire detector, if the cell voltage becomes more than the overcharge detector threshold,
after detecting the open-wire, the operation of the overcharge detector starts.
The timing chart shown below is for the operation of the case 1. When the overcharge is detected, internal node "vd1" becomes
"H", then, if the open-wire is detected, the internal node "It_en" becomes "H", then "vd1" signal returns to "L". After the open-
wire detector is released, then "It_en" returns to "L", then the "vd1" becomes "H", and overcharge detector's function restar.
CTLT
tLT
VCELLn
(n=1,2,3,4, 5)
VDET1n
lt_en
(internal signal)
vd1
(internal signal)
COUT
H
Check
Open-wire
BtVDET1
A
B
C
tVDET1
L
Open-wire test operation starts, overcharge detector's operation is cancelled.
Overcharge detector's maximum output delay : Max_tVDET1 = BCtVDET1.
30
t
t
t
t
t




R5432V.pdf
Click to Download PDF File