RN5VL40A (RICOH)
VOLTAGE DETECTOR

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VOLTAGE DETECTOR
R×5VL SERIES
APPLICATION MANUAL
ELECTRONIC DEVICES DIVISION
NO.EA-019-9803


RN5VL40A (RICOH)
VOLTAGE DETECTOR

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NOTICE
1. The products and the product specifications described in this application manual are subject to change or dis-
continuation of production without notice for reasons such as improvement. Therefore, before deciding to use
the products, please refer to Ricoh sales representatives for the latest information thereon.
2. This application manual may not be copied or otherwise reproduced in whole or in part without prior written con-
sent of Ricoh.
3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or other-
wise taking out of your country the products or the technical information described herein.
4. The technical information described in this application manual shows typical characteristics of and example
application circuits for the products. The release of such information is not to be construed as a warranty of or a
grant of license under Ricoh's or any third party's intellectual property rights or any other rights.
5. The products listed in this document are intended and designed for use as general electronic components in
standard applications (office equipment, computer equipment, measuring instruments, consumer electronic
products, amusement equipment etc.). Those customers intending to use a product in an application requiring
extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of
the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic
control system, automotive and transportation equipment, combustion equipment, safety devices, life support
system etc.) should first contact us.
6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor
products are likely to fail with certain probability. In order prevent any injury to persons or damages to property
resulting from such failure, customers should be careful enough to incorporate safety measures in their design,
such as redundancy feature, fire-containment feature and fail-safe feature. We do not assume any liability or
responsibility for any loss or damage arising from misuse or inappropriate use of the products.
7. Anti-radiation design is not implemented in the products described in this application manual.
8. Please contact Ricoh sales representatives should you have any questions or comments concerning the prod-
ucts or the technical information.
June 1995


RN5VL40A (RICOH)
VOLTAGE DETECTOR

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R×5VL SERIES
APPLICATION MANUAL
CONTENTS
OUTLINE ......................................................................................................1
FEATURES....................................................................................................1
APPLICATIONS .............................................................................................1
BLOCK DIAGRAMS.......................................................................................2
TIME CHART.................................................................................................2
DEFINITION OF OUTPUT DELAY TIME tplh....................................................2
SELECTION GUIDE .......................................................................................4
PIN CONFIGURATION ...................................................................................5
PIN DESCRIPTION ........................................................................................5
ABSOLUTE MAXIMUM RATINGS ...................................................................6
ELECTRICAL CHARACTERISTICS ................................................................7
ELECTRICAL CHARACTERITICS BY DETECTOR THRESHOLD....................10
OPERATION ................................................................................................14
TEST CIRCUITS...........................................................................................15
TYPICAL CHARACTERISTICS......................................................................16
1) Supply Current vs. Input Voltage .........................................................................16
2) Detector Threshold vs. Temperature .....................................................................16
3) Output Voltage vs. Input Voltage .........................................................................17
4) Nch Driver Output Current vs. VDS .......................................................................18
5) Nch Driver Output Current vs. Input Voltage .............................................................18
6) Pch Driver Output Current vs. Input Voltage..............................................................19
7) Output Delay Time vs. Load Capacitance ................................................................20
TYPICAL APPLICATIONS ............................................................................21
• R×5VL××A CPU Reset Circuit(Nch Open Drain Output).....................................................21
• R×5VL××C CPU Reset Circuit (CMOS Output) ..............................................................21
• R×5VL××A Output delay Time Circuit .......................................................................21
• Memory Back-up Circuit....................................................................................21
• Voltage Level Indicator Circuit (lighted when the power runs out) ..........................................22
• Detector Threshold Changing Circuit.......................................................................22
• Window Comparator Circuit ................................................................................22
• Excessive Charge Preventing Circuit.......................................................................22
PACKAGE DIMENSIONS ..............................................................................24
TAPING SPECIFICATIONS ...........................................................................25


RN5VL40A (RICOH)
VOLTAGE DETECTOR

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R×5VL SERIES
VOLTAGE DETECTOR
OUTLINE
The R×5VL Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply
current by CMOS process. Each of these ICs consists of a voltage reference unit, a comparator, resistors for
voltage detection, an output driver and a hysteresis circuit.
The detector threshold is fixed with high accuracy.
Two output Types, Nch open drain type and CMOS type, are available.
Three types of packages, TO-92, SOT-89 (Mini-power Mold), SOT-23-5 (Mini-mold), are available.
FEATURES
Ultra-low Supply Current................................TYP. 1.0µA (VDD=3.0V)
Broad Operating Voltage Range......................1.5V to 10.0V
Detector Threshold...........................................Stepwise setting with a step of 0.1V in the range of
2.0V to 6.0V is possible (refer to Selection Guide).
High Accuracy Detector Threshold .................±2.5%
Low Temperature-Drift Coefficient of Detector Threshold .....TYP.±100ppm/˚C
Two Output Types ............................................Nch Open Drain and CMOS
Three Types of Packages..................................TO-92, SOT-89 (Mini-power Mold), SOT-23-5 (Mini-mold)
APPLICATIONS
CPU & Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-Up Circuit
Power Failure Detector
1


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VOLTAGE DETECTOR

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R ×5VL
BLOCK DIAGRAMS
Nch Open Drain Output (R×5VL××A)
VDD
2
OUT
1
+
Vref
3
GND
TIME CHART
Supply Voltage
(VDD)
Released Voltage +VDET
Detected Voltage –VDET
Minimum Operating Voltage
GND
CMOS Output (R×5VL××C)
VDD
2
+
Vref
OUT
1
3
GND
Detector Threshold Hysteresis
Output Voltage
(OUT)
GND
DEFINITION OF OUTPUT DELAY TIME tPLH
tPLH
+VDET + 2.0V
+VDET + 2.0V
Input Voltage
(VDD)
1.2V
GND
Input Voltage
(VDD)
1.2V
GND
7.0V
+VDET +2.0V
Output Voltage
3.5V
GND
Output Voltage
+VDET + 2.0V
2
GND
tPHL
tPLH
Nch Open Drain Output
tPHL
tPLH
CMOS Output
2


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VOLTAGE DETECTOR

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R×5VL
Output Delay Time tPLH is defined as follows:
1. In the case of Nch Open Drain Output:
When the time at which a pulse voltage which increases from 1.2V to +VDET+2.0V is applied to VDD is
Time A, and the time at which the output reaches 3.5V under the conditions that the output pin (OUT)
is pulled up to 7V by a resistor of 100kis Time B, the time period from Time A through Time B.
2. In the case of CMOS Output:
When the time at which a pulse voltage which increases from 1.2V to +VDET +2.0V is applied to VDD is
Time A, and the time at which the output voltage reaches the voltage of (+VDET+2.0V)/2 is Time B, the
time period from Time A through Time B.
3


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VOLTAGE DETECTOR

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R ×5VL
SELECTION GUIDE
The package type,the detector threshold,the output type,the packing type,and the taping type of R×5VL
series can be designating at the user's request by specifying the part number as follows:
R×5VL×××××× Part Number
↑ ↑ ↑↑ ↑
a b cd e
Code
a
b
c
d
e
Designation of Package Type:
E: TO-92
H: SOT-89 (Mini-power Mold)
N: SOT-23-5 (Mini-mold)
Contents
Setting Detector Threshold (–VDET):
Stepwise setting with a step of 0.1V in the range of 2.0V to 6.0V is possible.
Designation of Output Type:
A: Nch Open Drain
C: CMOS
Designation of Packing Type:
A: Taping
C: Antistatic bag for TO-92 and samples
Designation of Taping Type:
Ex. TO-92: RF, RR, TZ
SOT-89: T1, T2
SOT-23-5: TR, TL
(refer to Taping Specifications)
“TZ”, “T1” and “TR” are prescribed as a standard.
For example, the product with Package Type SOT-89, Detector Threshold 3.5V, Output Type Nch Open Drain
and Taping Type T1, is designated by Part Number RH5VL35AA-T1.
4


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VOLTAGE DETECTOR

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PIN CONFIGURATION
TO-92
SOT-89
(mark side)
1 23
(mark side)
123
R ×5VL
SOT-23-5
54
(mark side)
12 3
PIN DESCRIPTION
TO-92
Pin No
1
2
3
Symbol
OUT
VDD
GND
SOT-89
Pin No
1
2
3
Symbol
OUT
VDD
GND
SOT-23-5
Pin No
1
2
3
4
5
Symbol
OUT
VDD
GND
NC
NC
5


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VOLTAGE DETECTOR

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R ×5VL
ABSOLUTE MAXIMUM RATINGS
Symbol
VDD
VOUT
IOUT
PD1
PD2
Topt
Tstg
Tsolder
Item
Supply Voltage
Output Voltage
Output Current
Power Dissipation 1 (NOTE1)
Power Dissipation 2 (NOTE2)
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering)
CMOS
Nch
(NOTE 1) applied to SOT-89 and TO-92
(NOTE 2) applied to SOT-23-5
Rating
12
VSS–0.3 to VDD+0.3
VSS–0.3 to 12
70
300
150
–30 to +80
–55 to +125
260˚C,10s
Topt=25˚C
Unit
V
V
mA
mW
mW
˚C
˚C
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any
conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above
these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress
ratings only and do not necessarily imply functional operation below these limits.
6


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VOLTAGE DETECTOR

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R ×5VL
ELECTRICAL CHARACTERISTICS
R×5VL20C
Symbol
–VDET
VHYS
Item
Detector Threshold
Detector Threshold Hysteresis
ISS Supply Current
VDD Operating Voltage
IOUT
Output Current
tPLH
–VDET
Topt
Output Delay Time
Detector Threshold
Temperature Coefficient
Conditions
VDD=1.90V
VDD=4.00V
VDD=10.0V
VDS=0.5V
Nch
VDD=1.5V
VDS=–2.1V
Pch
VDD=4.5V
–30˚CTopt80˚C
Topt=25˚C
MIN. TYP. MAX. Unit
1.950 2.000 2.050 V
0.060 0.100 0.140 V
0.90 2.70
1.10 3.30
1.70 5.10
1.50 10.0
µA
V
0.25 0.50
mA
1.00 2.00
mA
100 µs
±100
ppm/˚C
R×5VL27C
Symbol
–VDET
VHYS
Item
Detector Threshold
Detector Threshold Hysteresis
ISS Supply Current
VDD Operating Voltage
IOUT
Output Current
tPLH
–VDET
Topt
Output Delay Time
Detector Threshold
Temperature Coefficient
Conditions
VDD=2.60V
VDD=4.70V
VDD=10.0V
VDS=0.5V
Nch
VDD=1.5V
VDS=0.5V
Nch
VDD=2.0V
VDS=–2.1V
Pch
VDD=4.5V
–30˚CTopt80˚C
Topt=25˚C
MIN. TYP. MAX. Unit
2.633 2.700 2.767 V
0.081 0.135 0.189 V
0.90
1.10
1.70
2.70
3.30
5.10
µA
1.50 10.0 V
0.25 0.50
mA
1.50 3.00
mA
1.00 2.00
mA
100 µs
±100
ppm/˚C
7


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VOLTAGE DETECTOR

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R ×5VL
R×5VL36C
Symbol
–VDET
VHYS
Item
Detector Threshold
Detector Threshold Hysteresis
ISS Supply Current
VDD Operating Voltage
IOUT
Output Current
tPLH
–VDET
Topt
Output Delay Time
Detector Threshold
Temperature Coefficient
Conditions
VDD=3.47V
VDD=5.60V
VDD=10.0V
VDS=0.5V
Nch
VDD=1.5V
VDS=0.5V
Nch
VDD=3.0V
VDS=–2.1V
Pch
VDD=4.5V
–30˚CTopt80˚C
MIN. TYP.
3.510 3.600
0.108 0.180
1.00
1.20
1.70
1.50
Topt=25˚C
MAX. Unit
3.690 V
0.252 V
3.00
3.60 µA
5.10
10.0 V
0.25 0.50
mA
3.00 5.00
mA
1.00 2.00
100
mA
µs
±100
ppm/˚C
R×5VL45C
Symbol
–VDET
VHYS
Item
Detector Threshold
Detector Threshold Hysteresis
ISS Supply Current
VDD Operating Voltage
IOUT
Output Current
tPLH
–VDET
Topt
Output Delay Time
Detector Threshold
Temperature Coefficient
Conditions
VDD=4.34V
VDD=6.50V
VDD=10.0V
VDS=0.5V
Nch
VDD=1.5V
VDS=0.5V
Nch
VDD=4.0V
VDS=–2.1V
Pch
VDD=8.0V
–30˚CTopt80˚C
MIN. TYP.
4.388 4.500
0.135 0.225
1.10
1.30
1.70
1.50
Topt=25˚C
MAX. Unit
4.612 V
0.315 V
3.30
3.90 µA
5.10
10.0 V
0.25 0.50
mA
4.00 6.00
mA
1.50 3.00
100
mA
µs
±100
ppm/˚C
8


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VOLTAGE DETECTOR

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R×5VL54C
Symbol
–VDET
VHYS
Item
Detector Threshold
Detector Threshold Hysteresis
ISS Supply Current
VDD Operating Voltage
IOUT
Output Current
tPLH
–VDET
Topt
Output Delay Time
Detector Threshold
Temperature Coefficient
R ×5VL
Conditions
VDD=5.20V
VDD=7.40V
VDD=10.0V
VDS=0.5V
Nch
VDD=1.5V
VDS=0.5V
Nch
VDD=5.0V
VDS=–2.1V
Pch
VDD=8.0V
–30˚CTopt80˚C
MIN. TYP.
5.265 5.400
0.162 0.270
1.20
1.40
1.70
1.50
Topt=25˚C
MAX. Unit
5.535 V
0.378 V
3.60
4.20 µA
5.10
10.0 V
0.25 0.50
mA
5.00 7.00
mA
1.50 3.00
mA
100 µs
±100
ppm/˚C
9


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VOLTAGE DETECTOR

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R ×5VL
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
R×5VL××A
Part Number
R×5VL20A
R×5VL21A
R×5VL22A
R×5VL23A
R×5VL24A
R×5VL25A
R×5VL26A
R×5VL27A
R×5VL28A
R×5VL29A
R×5VL30A
R×5VL31A
R×5VL32A
R×5VL33A
R×5VL34A
R×5VL35A
R×5VL36A
R×5VL37A
R×5VL38A
R×5VL39A
R×5VL40A
R×5VL41A
R×5VL42A
R×5VL43A
R×5VL44A
R×5VL45A
R×5VL46A
R×5VL47A
R×5VL48A
R×5VL49A
R×5VL50A
R×5VL51A
R×5VL52A
R×5VL53A
R×5VL54A
R×5VL55A
R×5VL56A
R×5VL57A
R×5VL58A
R×5VL59A
Detector Threshold
Detector Threshold
Hysteresis
SupplyCurrent 1
Supply Current 2
Supply Current 3
–VDET(V)
VHYS(V)
ISS(µA)
ISS(µA)
ISS(µA)
MIN.
1.950
2.048
2.145
2.243
2.340
2.438
2.535
2.633
2.730
2.828
2.925
3.023
3.120
3.218
3.315
3.413
3.510
3.608
3.705
3.803
3.900
3.998
4.095
4.193
4.290
4.388
4.485
4.583
4.680
4.778
4.875
4.973
5.070
5.168
5.265
5.363
5.460
5.558
5.655
5.753
TYP.
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
5.100
5.200
5.300
5.400
5.500
5.600
5.700
5.800
5.900
MAX.
2.050
2.152
2.255
2.357
2.460
2.562
2.665
2.767
2.870
2.972
3.075
3.177
3.280
3.382
3.485
3.587
3.690
3.792
3.895
3.997
4.100
4.202
4.305
4.407
4.510
4.612
4.715
4.817
4.920
5.022
5.125
5.227
5.330
5.432
5.535
5.637
5.740
5.842
5.945
6.047
MIN. MAX. Conditions
VDD=
(–VDET)
–0.10V
VDD=
(–VDET)
–0.13V
(–VDET) (–VDET)
×3% ×7%
VDD=
(–VDET)
–0.16V
VDD=
(–VDET)
–0.20V
TYP.
0.9
1.0
1.1
1.2
MAX. Conditions TYP.
2.7 1.1
3.0 1.2
VDD=
(–VDET)
+2.0V
3.3 1.3
3.6 1.4
MAX. Conditions TYP.
3.3
3.6
VDD=
10V
1.7
3.9
4.2
MAX.
5.1
10


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VOLTAGE DETECTOR

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Output Current 1
IOUT(mA)
Conditions MIN. TYP.
Output Current 2
IOUT(mA)
Output
Delay Time
Operating Voltage
tPLH
(µs)
VDD(V)
Conditions MIN. TYP. MAX. MIN. MAX.
Topt=25˚C
Detector Threshold
Tempco.
–VDET/Topt
(ppm/˚C)
Conditions TYP.
–– –
Nch
VDS=
0.5V
VDD=
2.0V
1.5
3.0
Nch
VDS=
Nch
0.5V
VDS=
0.5V 3.0 5.0
VDD=
1.5V
VDD=
–30˚C
0.25 0.50 3.0V
100 1.5 10 Topt ±100
80˚C
Nch
VDS=
0.5V
4.0
6.0
VDD=
4.0V
Nch
VDS=
0.5V
VDD=
5.0V
5.0
7.0
R ×5VL
11


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R ×5VL
R×5VL××C
Part Number
R×5VL20C
R×5VL21C
R×5VL22C
R×5VL23C
R×5VL24C
R×5VL25C
R×5VL26C
R×5VL27C
R×5VL28C
R×5VL29C
R×5VL30C
R×5VL31C
R×5VL32C
R×5VL33C
R×5VL34C
R×5VL35C
R×5VL36C
R×5VL37C
R×5VL38C
R×5VL39C
R×5VL40C
R×5VL41C
R×5VL42C
R×5VL43C
R×5VL44C
R×5VL45C
R×5VL46C
R×5VL47C
R×5VL48C
R×5VL49C
R×5VL50C
R×5VL51C
R×5VL52C
R×5VL53C
R×5VL54C
R×5VL55C
R×5VL56C
R×5VL57C
R×5VL58C
R×5VL59C
Detector Threshold
Detector Threshold
Hysteresis
SupplyCurrent 1
Supply Current 2
Supply Current 3
–VDET(V)
VHYS(V)
ISS(µA)
ISS(µA)
ISS(µA)
MIN.
1.950
2.048
2.145
2.243
2.340
2.438
2.535
2.633
2.730
2.828
2.925
3.023
3.120
3.218
3.315
3.413
3.510
3.608
3.705
3.803
3.900
3.998
4.095
4.193
4.290
4.388
4.485
4.583
4.680
4.778
4.875
4.973
5.070
5.168
5.265
5.363
5.460
5.558
5.655
5.753
TYP.
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
5.100
5.200
5.300
5.400
5.500
5.600
5.700
5.800
5.900
MAX.
2.050
2.152
2.255
2.357
2.460
2.562
2.665
2.767
2.870
2.972
3.075
3.177
3.280
3.382
3.485
3.587
3.690
3.792
3.895
3.997
4.100
4.202
4.305
4.407
4.510
4.612
4.715
4.817
4.920
5.022
5.125
5.227
5.330
5.432
5.535
5.637
5.740
5.842
5.945
6.047
MIN. MAX. Conditions
VDD=
(–VDET)
–0.10V
VDD=
(–VDET)
–0.13V
(–VDET) (–VDET)
×3% ×7%
VDD=
(–VDET)
–0.16V
VDD=
(–VDET)
–0.20V
TYP.
0.9
1.0
1.1
1.2
MAX. Conditions TYP.
2.7 1.1
3.0 1.2
VDD=
(–VDET)
+2.0V
3.3 1.3
3.6 1.4
MAX. Conditions TYP.
3.3
3.6
VDD=
10V
1.7
3.9
4.2
MAX.
5.1
12


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VOLTAGE DETECTOR

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Output Current 1
IOUT(mA)
Conditions MIN. TYP.
Output Current 2
IOUT(mA)
Conditions MIN. TYP.
Topt=25˚C
Output Current 3
IOUT(mA)
Output
Delay Time
Operating Voltage
tPLH
( µs)
VDD(V)
Detector Threshold
Tempco.
–VDET/Topt
(ppm/˚C)
Conditions MIN. TYP. MAX. MIN. MAX. Conditions TYP.
———
Nch
Pch
VDS= 1.5
0.5V
VDD=
Nch 2.0V
VDS=
0.5V
0.25
VDD=
0.5V
Nch
0.50
VDS=
0.5V
VDD=
3.0V
3.0
3.0
VDS=
2.1V
1.0
VDD=
4.5V
5.0
2.0
100 1.5
30˚C
10 Topt ±100
80˚C
Nch Pch
VDS=
0.5V
4.0
VDD=
4.0V
Nch
6.0 VDS=
2.1V
1.5
VDD=
8.0V
3.0
VDS=
0.5V
5.0
7.0
VDD=
5.0V
R ×5VL
13


RN5VL40A (RICOH)
VOLTAGE DETECTOR

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R ×5VL
OPERATION
Ra
+
Rb
Tr.1
Rc
FIG. 1 Block Diagram
VDD
Pch
OUT
Nch
GND
· In R×5VL××A, Nch Tr. drain is con-
nected to OUT pin.
· In R×5VL××C, Nch Tr. drain and
Pch Tr. drain are connected to
OUT pin.
Operation Diagram
12
3
45
Supply Volage
(VDD)
Released Volage +VDET
Detected Volage –VDET
Minimum Operating Volage
GND
B
A Detector Threshold Hysteresis
Output Volage
(OUT)
GND
FIG. 2 Operation Diagram
tPLH
Step Step 1 Step 2 Step 3 Step 4 Step 5
Comparator(+)Pin
Input Voltage I II II II I
Comparator Output H L Indefinite L H
Tr. 1
OFF ON Indefinite ON OFF
Pch ON OFF Indefinite OFF ON
Output Tr.
Nch OFF ON Indefinite ON OFF
Rb + Rc
I. ·VDD
Ra + Rb + Rc
II. Rb ·VDD
Ra + Rb
Step 1. Output Voltage is equal to Power Source Voltage (VDD).
Step 2. When Input Voltage to Comparator reaches the state of Vref VDD·(Rb+Rc)/(Ra+Rb+Rc)at Point A (Detected Voltage –VDET), the output of Com-
parator is reserved, so that Output Voltage becomes GND.
Step 3. In the case of CMOS Output, Output Voltage becomes unstable when Supply Voltage (VDD) is smaller than Minimum Operating Voltage. In the
case of Nch Open Drain Output, a pulled-up voltage is output.
Step 4. Output Voltage becomes equal to GND.
Step 5. When Input Voltage to Comparator reaches the state of VrefVDD·(Rb)/(Ra+Rb) at Point B (Released Voltage +VDET), the output of Comparator is reserved,
so that Output Voltage becomes equal to Supply Voltage (VDD)
14


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VOLTAGE DETECTOR

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R ×5VL
TEST CIRCUITS
VDD
ISS
VDD
R×5VL OUT
SERIES
VSS
GND
FIG. 3 Supply Current Test Circuit
VDD
VSS
VDD Rn
R×5VL OUT
SERIES
GND
Rn:R×5VL××A:100k
R×5VL××C:None
VDET
VSS
FIG. 4 Detector Threshold Test Circuit
VDD
VDD
R×5VL OUT
SERIES
IOUT
+VDS
VSS
GND
VSS
FIG. 5 Nch Driver Output Current Test Circuit
VDD
VSS
VDD
R×5VL××C OUT
SERIES
IOUT
VDD –VDS
GND
VSS
FIG. 6 Pch Driver Output Current Test Circuit
+VDET+2.0V
1.2V
VSS
P.G.
VDD
R×5VL××A OUT
SERIES
GND
+7.0V
ROUT
100k
OUT
COUT
VSS
FIG. 7 Output Delay Time Test Circuit
In Output Delay Time Test Circuit in FIG.7, it's Output Voltage Fall Times (tPHL) and Rise Times (tPLH) are defined
as shown below.
+VDET+2.0V
+VDET+2.0V
Input Voltage
(VDD)
1.2V
GND
Input Voltage
(VDD)
1.2V
GND
7.0V
Output Voltage
3.5V
Output Voltage
+VDET+2.0V
+VDET+2.0V
2
GND
tPHL
tPLH
Nch Open Drain Output
GND
tPHL
tPLH
CMOS Output
15


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VOLTAGE DETECTOR

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R ×5VL
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
R×5VL27C
3.0
Topt=80˚C
2.5
25˚C
2.0
–30˚C
1.5
1.0
0.5
0.0
0 1 2 3 4 5 6 7 8 9 10
Input Voltage VIN(V)
R×5VL45C
3.0
Topt=80˚C
2.5
2.0 25˚C
1.5 –30˚C
1.0
0.5
0.0
0 1 2 3 4 5 6 7 8 9 10
Input Voltage VIN(V)
2) Detector Threshold vs. Temperature
R×5VL27C
3.0
2.9
+VDET
2.8
2.7
–VDET
2.6
2.5
–40 –20 0 20 40 60 80 100
Temperature Topt(˚C)
16
R×5VL36C
4.0
Topt=80˚C
3.0
25˚C
2.0
–30˚C
1.0
0.0
0 1 2 3 4 5 6 7 8 9 10
Input Voltage VIN(V)
R×5VL36C
4.0
3.9
3.8
+VDET
3.7
3.6 –VDET
3.5
–40 –20 0 20 40 60 80 100
Temperature Topt(˚C)


RN5VL40A (RICOH)
VOLTAGE DETECTOR

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R×5VL45C
4.9
4.8 +VDET
4.7
4.6
4.5 –VDET
4.4
–40 –20 0 20 40 60 80 100
Temperature Topt(˚C)
3) Output Voltage vs. Input Voltage
R×5VL27A
Topt=25˚C
4
3
2
1
0
01234
Input Voltage VIN(V)
6 Topt=25˚C
5
4
3
2
1
0
0 123456
Input Voltage VIN(V)
R ×5VL
R×5VL36A
Topt=25˚C
5
4
3
2
1
0
01 2 345
Input Voltage VIN(V)
17


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VOLTAGE DETECTOR

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R ×5VL
4) Nch Driver Output Current vs. VDS
R×5VL27C
10 Topt=25˚C
VIN=2.5V
8
6
2.0V
4
2 1.5V
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
VDS(V)
R×5VL45C
Topt=25˚C
30
VIN=4.0V
25
20 3.5V
15 3.0V
10 2.5V
5 2.0V
1.5V
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VDS(V)
5) Nch Driver Output Current vs. Input Voltage
R×5VL27C
10 VDS=0.5V
8 Topt=–30˚C
25˚C
6
4
80˚C
2
0
01 23
Input Voltage VIN(V)
R×5VL36C
Topt=25˚C
16
14 VIN=3.0V
12
10 2.5V
8
6 2.0V
4
2 1.5V
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
VDS(V)
R×5VL36C
VDS=0.5V
14
Topt=–30˚C
12
10 25˚C
8
6
4 80˚C
2
0
01234
Input Voltage VIN(V)
18


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VOLTAGE DETECTOR

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R×5VL45C
8 VDS=0.5V
Topt=–30˚C
25˚C
6
80˚C
4
2
0
0 123 45
Input Voltage VIN(V)
6) Pch Driver Output Current vs. Input Voltage
R×5VL27C
3.0 Topt=25˚C
2.5 VDS=2.1V
2.0 1.5V
1.5 1.0V
1.0
0.5V
0.5
0
12 3 4 567
Input Voltage VIN(V)
R×5VL45C
3.0 Topt=25˚C
VDS=2.1V
2.5
2.0 1.5V
1.5 1.0V
1.0
0.5V
0.5
0.0
0
123456
Input Voltage VIN(V)
7
R ×5VL
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
R×5VL36C
Topt=25˚C
VDS=2.1V
1.5V
1.0V
0.5V
1 234 567
Input Voltage VIN(V)
19


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VOLTAGE DETECTOR

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R ×5VL
7) Output Delay Time vs. Load Capacitance
10 R×5VL27A Topt=25˚C
tPLH
tPHL
1
tPHL
0.1
tPLH
0.01
0.0001
0.001
0.01
0.1
Load Capacitance COUT(µF)
100 R×5VL45A Topt=25˚C
10
1 tPHL
tPLH
0.1
0.01
0.0001
0.001
0.01
0.1
Load Capacitance COUT(µF)
10 Topt=25˚C
1
tPHL
0.1
tPLH
0.01
0.0001
0.001
0.01
0.1
Load Capacitance COUT(µF)
20


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VOLTAGE DETECTOR

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R×5VL
TYPICAL APPLICATION
R×5VL××A CPU Reset Circuit (Nch Open Drain Output)
(1) Input Voltage to R×5VL××A is the same as
the input voltage to CPU.
(2) Input Voltage to R×5VL××A is different
from the input voltage to CPU.
VDD 100kR
VDD
R×5VL××A
SERIES
GND
OUT
CPU
RESET
GND
VDD
VDD1
VDD
100kR
VDD
R×5VL××A
SERIES OUT
GND
CPU
RESET
GND
VDD2
R×5VL××C CPU Reset Circuit (CMOS Output)
VDD
VDD
VDD
R×5VL××C
SERIES OUT
GND
CPU
RESET
GND
R×5VL××A Output delay Time Circuit
VDD 100kR
VDD
R×5VL××A OUT
SERIES
GND
CPU
RESET
GND
VDD
Memory Back-up Circuit
VDD
D1
VCC
D2 A
B
G
Y1
Y2
Y3
Y4
VDD
GND
R×5VL××C OUT
SERIES
GND
VCC
VCC
VCC
VCC
RAM1 RAM2 RAM3 RAM4
GND CS GND CS GND CS GND CS
21


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VOLTAGE DETECTOR

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R ×5VL
Voltage Level Indicator Circuit (lighted when the power runs out)
(Nch Open Drain Output)
VDD
VDD
OUT R×5VL××A
SERIES
GND
Detector Threshold Changing Circuit
(Nch Open Drain Output)
VDD
OUT
R×5VL××A
SERIES
GND
VDD
C+
Ra
Rb
Ra + Rb
Changed Detector Threshold =
· (–VDET )
Rb
Ra+ Rb
Hysteresis Voltage =
· VHYS
Rb
(Note) Please note that when the value of Ra becomes excessively large, the detector
threshold detected may differ from the value calculated by use of the above for-
mula.
Window Comparator Circuit
(Nch Open Drain Output)
VDD
VDD
VDD
R×5VL××A OUT
SERIES VDET1
GND
R×5VL××A OUT
SERIES VDET2
GND
OUT
VDD
VSS
VDET1
VDET2
OUT
VSS
Excessive Charge Preventing Circuit
Light
R1 D1
R2 VDD
R4
OUT R×5VL××C
R3 SERIES
VSS
22


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VOLTAGE DETECTOR

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R ×5VL
VDD
R
VDD
R×5VL
SERIES
OUT
VSS
APPLICATION HINTS
VDD
R1
VDD
R×5VL
SERIES
VSS
OUT
R2
FIG.8
FIG.9
1. When R×5VL××C (CMOS Output) is used in FIG. 8, this IC may oscillate by the through-type current at the detec-
tion when impedance is connected between Power Source VDD and R×5VL VDD Pin.When R×5VL××A (Nch Open
Drain Output) is used in FIG. 8, and R becomes excessively large, Detector Threshold may be varied because of the
voltage drop of the supply current in the IC itself.
2. The connection as shown in FIG. 9 may cause the oscillation in both R×5VL××C (CMOS Output) and R×5VL××A
(Nch Open Drain Output).
23


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VOLTAGE DETECTOR

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R×5VL
PACKAGE DIMENSIONS (Unit: mm)
TO-92
SOT-89
5.2MAX.
4.2MAX.
4.5±0.1
1.6±0.2
0.6MAX.
0.55MAX.
0.5MAX.
ø1.0
1 23
1 23
1.27
2.54
0. 4 2
±0.1
0. 4 7
±0.1
0. 4 2
±0.1
1.5±0.1 1.5±0.1
1.5±0.1
0.4±0.1
0.4±0.1
SOT-23-5
2.9±0.2
1.9±0.2
(0.95) (0.95)
54
1 23
0.4±0.1
+0.2
1.1 –0.1
0.8±0.1
0 to 0.1
+0.1
0.15 –0.05
24


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VOLTAGE DETECTOR

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TAPING SPECIFICATIONS (Unit: mm)
TO-92
12.7 ±1.0
*
R×5VL
5.2 MAX.
4.2 MAX.
12.7 ± 0.3
ø 4.0±0.2
RF RR
When TZ type tape is
pulled out from the
direction B
When TZ type tape is
pulled out from the
direction F
User Direction of Feed
*
(Note)
1.45 MAX.
0.7±0.2
: Mark Side
0.6 MAX.
0.55
MAX.
2.5
+0.4
–0.1
1 23
0.5 MAX.
SOT-89
0.3±0.1
ø 1.5+–00.1
4.0±0.1
2.0±0.05
(Note) When taping is conducted, the pins of TO-92 are
subjected to a particular forming.
2.5MAX.
SOT-23-5
0.3±0.1
5.0
8.0±0.1
T1 T2
User Direction of Feed.
ø 1.5+–00.1
4.0±0.1
2.0±0.05
(Note)
TZ type tape is not in the form of a reel, but is
packed in a zigzag state in a box.Therefore, the
tape can be used as either an RF type tape or an
RR type tape,depending upon the pulling out direc-
tion (B or F).
2.0MAX.
3.2
3.3
4.0±0.1
TR TL
User Direction of Feed.
25


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VOLTAGE DETECTOR

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RICOH COMPANY, LTD.
ELECTRONIC DEVICES DIVISION
HEADQUARTERS
13-1, Himemuro-cho, Ikeda City, Osaka 563-8501, JAPAN
Phone 81-727-53-1111 Fax 81-727-53-6011
YOKOHAMA OFFICE (International Sales)
3-2-3, Shin-Yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8530,
JAPAN
Phone 81-45-477-1697 Fax 81-45-477-1694·1695
http://www.ricoh.co.jp/LSI/english/
RICOH CORPORATION
ELECTRONIC DEVICES DIVISION
SAN JOSE OFFICE
3001 Orchard Parkway, San Jose, CA 95134-2088, U.S.A.
Phone 1-408-432-8800 Fax 1-408-432-8375




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