KIA7425P (KEC)
Bipolar Linear IC

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SEMICONDUCTOR
TECHNICAL DATA
KIA7419P/F~KIA7445P/F
BIPOLAR LINEAR INTEGRATED CIRCUIT
VOLTAGE DETECTOR
This IC series is usable for the CPU system of all types and wired
logic system as it has the function of detecting the power supply voltage
at the time of initial resetting after switching the power supply on and
after instantaneous break in power supply voltage there-by accurately
resetting the system this particular series has especially been designed
as the high resetting output type.
FEATURES
Current Consumption is Low. ICCL=30 A Typ.
ICCH=300 A Typ.
Resetting Output Minimum Guarantee Voltage is Low 0.8V Typ.
Hysteresis Voltage is Provided 50mV Typ.
Reset Signal Generation Starting Voltages:
KIA7419P/F 1.9V Typ. KIA7433P/F 3.3V Typ.
KIA7421P/F 2.1V Typ. KIA7434P/F 3.4V Typ.
KIA7423P/F 2.3V Typ. KIA7435P/F 3.5V Typ.
KIA7425P/F 2.5V Typ. KIA7436P/F 3.6V Typ.
KIA7427P/F 2.7V Typ. KIA7439P/F 3.9V Typ.
KIA7429P/F 2.9V Typ. KIA7442P/F 4.2V Typ.
KIA7431P/F 3.1V Typ. KIA7445P/F 4.5V Typ.
KIA7432P/F 3.2V Typ.
Taping Type is also Available.
APPLICATIONS
(1) As Control Circuit of Battery-Backed Memory Units.
(2) As Measure Against Erroneous Operations at Power Supply ON-OFF Time.
(3) As Measure Against System Runaway at Instantaneous Break of Power
Supply etc.
(4) As Resetting Function for the CPU-Mounted Equipment, such as Personal
Computers, Printers, VTRs and so forth.
BC
KE
G
D
H
FF
1 23
N
DIM MILLIMETERS
A 4.70 MAX
B 4.80 MAX
C 3.70 MAX
D 0.45
E 1.00
F 1.27
G 0.85
H 0.45
J 14.00 +_0.50
K 0.55 MAX
L 2.30
M 0.45 MAX
N 1.00
1. VCC
2. GND
3. OUT
TO-92
A
H
DD
K
FF
123
C
G
DIM
A
B
C
D
E
F
G
H
J
K
MILLIMETERS
4.70 MAX
2.50+_ 0.20
1.70 MAX
0.45+0.15/-0.10
4.25 MAX
1.50+_ 0.10
0.40 TYP
1.75 MAX
0.75 MIN
0.5+0.10/-0.05
EQUIVALENT CIRCUIT
-
+
1 VCC
3 OUT
2 GND
1. VCC
2. GND
3. OUT
SOT-89
1999. 11. 25
Revision No : 2
1/4
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KIA7425P (KEC)
Bipolar Linear IC

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KIA7419P/F~KIA7445P/F
MAXIMUM RATINGS (Ta=25 )
CHARACTERISTIC
SYMBOL RATING UNIT
Supply Voltage
VCC -0.3 +7.5 V
Power Dissipation KIA7419P 45P
(Package Limitation) KIA7419P 45F
PD
400
mW
500
Operating Temperature
Topr -30 +75
Storage Temperature
Tstg -55 150
Marking
Type No.
KIA7419F
KIA7421F
KIA7423F
KIA7425F
KIA7427F
KIA7429F
KIA7431F
KIA7432F
Marking
4A
4B
4C
4D
4E
4F
4G
4H
Type No.
KIA7433F
KIA7434F
KIA7435F
KIA7436F
KIA7439F
KIA7442F
KIA7445F
Marking
4J
4K
4L
4M
4N
4P
4R
ELECTRICAL CHARACTERISTICS
CHARACTERISTIC
SYMBOL TEST CIR.
TEST CONDITION
MIN. TYP. MAX. UNIT
Detecting Voltage
KIA7419P/F 1.75 1.9 2.05
KIA7421P/F 1.95 2.1 2.25
KIA7423P/F 2.15 2.3 2.45
KIA7425P/F 2.35 2.5 2.65
KIA7427P/F 2.55 2.7 2.85
KIA7429P/F 2.75 2.9 3.05
VS
1 RL=4.7k
VOH VOL-0.4
KIA7431P/F 2.95 3.1 3.25
KIA7432P/F 3.05 3.2 3.35
KIA7433P/F 3.15 3.3 3.45
V
KIA7434P/F 3.25 3.4 3.55
KIA7435P/F 3.35 3.5 3.65
KIA7436P/F 3.45 3.6 3.75
KIA7439P/F 3.70 3.9 4.10
KIA7442P/F 4.00 4.2 4.40
KIA7445P/F 4.30 4.5 4.70
Low-Level Output Voltage
Output Leakage Current
VOL 1 RL=4.7k
IOL 1 VCC=7.5V
VCC -0.4
-
-
V
- - 0.1 A
KIA7419P/F
Hysterisis Voltage
Vs 1 RL=4.7k
KIA7421P/F
KIA7423P/F
20
50 100
mV
Detecting Voltage
Temperature Coefficient
Circuit Current at on Time
Vs/ T
IccH
30 50 100
1 RL=4.7k
-
1 VCC=Vsmin -0.05V
-
KIA7419P/F
0.01
300
-
500
%/
A
Circuit Current at off Time
IccL 1 VCC=5.25V
KIA7421P/F
KIA7423P/F
-
30 70
A
- 30 50
Threshold Operating Voltage
"L" Transmission DELAY Time
"H" Transmission DELAY Time
Output Current
Vopr
tpHL
tpLH
IOH
1 RL=4.7k , VOH VCC-0.4
2 RL=4.7k , CL=100pF
2 RL=4.7k , CL=100pF
1 VCC=Vsmin -0.05V,
RL=0 , Tc=25
- 0.8 -
- 10 -
- 10 -
V
s
s
-2.0 -5.0 - mA
1999. 11. 25
Revision No : 2
2/4
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KIA7425P (KEC)
Bipolar Linear IC

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KIA7419P/F~KIA7445P/F
TEST CIRCUIT 1.
1
V KIA74xxP/F 3
2
A
A is DC AMPERE METER
V is DC VOLT METER
CL
AV
TEST CIRCUIT 2.
INPUT
PULSE
0.2uF M
1
KIA74xxP/F
2
3
M is OSCILLOSCOPE MONITOR
CL
RL M
1999. 11. 25
Revision No : 2
3/4
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KIA7425P (KEC)
Bipolar Linear IC

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KIA7419P/F~KIA7445P/F
PRECAUTION FOR USE
SOLDERING
Flat Package (SOT-89 Package)
Elements mounting styles of electronic devices are gaining in further diversification over recent years, and needs for
components are all the more expanding in varieties. Especially, surface mounting is steadily penetrating into industrial
segments as a world-wide popular technical trend. Although exposure to high temperature is inevitable during soldering
we recommend limiting the soldering temperature to low levels as shown in figure for the sake of retaining inherent excellent
reliability.
240
210
150
60 sec.
Time (sec.)
Within 10 sec.
Within 30 sec.
Fig 6
(a) When employing solder reflow method
Atmospheric temperature around resin surfaces must be less than 240 , not exceeding the time length of 10 sec.
Recommend temperature profile
Precautions on heating method
When resin in kept exposed to high temperature for a long time, device reliability may be marred.
Therefore, it is essential to complete soldering in the shortest time possible to prevent temperature of resin from rising.
(b) When employing halogen lamps or infrared-ray heaters
When halogen lamps or infrared-ray heaters are used, avoid direct irradiation onto resin surfaces ;
such devices cause extensive localized temperature rise.
Please keep a reflow solder operating when SOT-89 package's soldering.
1999. 11. 25
Revision No : 2
4/4
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KIA7425P.pdf
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