KSI-2024-002
1
S71xxLSF
Bipolar Linear Integrated Circuit
7
Description
Micro computer circuits in mobile phones, word processors, TVs, VCRs etc
General logic circuits
Detection of voltage drop in batteries of note personal computers, mobile phones
Switching to backup power supply
Features
Super Low Current Consumption (I
CCL
=100 Typ. I
CCH
=1 Typ.)
It has on delay function to supplement the constant of outer C and R
Low operation voltage
High current of output transistor
Hysteresis circuit built in
Low operation voltage
Ordering
Information
Type NO.
Marking
Package Code
S71xxLSF
L
SOT-23F
: Detecting Voltage Code
Outline Dimensions unit :
mm
S
S
e
e
m
m
i
i
c
c
o
o
n
n
d
d
u
u
c
c
t
t
o
o
r
r
PIN Connections
1. OUT
2. Vcc
3. GND
0.4
0.05
0~0.1
3
1
2
1.90 BSC
2.9
0.1
0.15
0.05
2.4
0.1
0.9
0.1
1.6
0.1
3. GND
2. Vcc
1. OUT
Equivalent Circuit
KSI-2024-002
2
S71xxLSF
Absolute maximum ratings
(Ta=25
C)
Characteristic
Symbol
Ratings
Unit
Supply voltage
V
CC
-0.3 ~ +10
V
Power Dissipation (Package Limitation)
P
D
*
300
Operating Temperature
T
opr
-20 ~ +75
Storage Temperature
T
stg
-40 ~ +125
* With PCB(88 Copper Area) at Glass Epoxy Board (t=1.7 , Area; 2020 )
Electrical Characteristics
(Ta=25
C)
Characteristic
Symbol
Test
Circuit
Test Condition
Min. Typ. Max. Unit
S7145LSF
4.30
4.5
4.70
S7142LSF
4.00
4.2
4.40
S7139LSF
3.70
3.9
4.10
S7136LSF
3.40
3.6
3.80
S7133LSF
3.10
3.3
3.50
S7131LSF
2.90
3.1
3.30
S7129LSF
2.75
2.9
3.05
S7127LSF
2.55
2.7
2.85
S7125LSF
2.35
2.5
2.65
Detecting voltage
V
S
1
R
L
=470
V
CC
=HL
V
OL
0.4V
S7123LSF
2.15
2.3
2.45
V
Hysteresis Voltage
V
S
1
R
L
=470,V
CC
=LHL
30
100
300
Temperature Coefficient
Of detecting voltage
V
S
/T
1
R
L
=470, Ta=-20~75
-
0.01
-
%/
Low Level Output voltage
V
OL
1
R
L
=470, V
CC
= V
SMin
-
0.1
0.4
V
Circuit current at ON
I
CCL
1
R
L
=, V
CC
= V
SMin
-
300
500
A
Circuit current at OFF
I
CCH
1
R
L
=, V
CC
= V
SMax
+0.1V
-
30
50
A
Threshold Operating Voltage
V
opr
1
R
L
=4.7 , V
OL
0.4V
-
1.4
1.6
V
Output Current at ON I
I
OLI
1
R
L
=0, V
CC
= V
SMin
10
20
-
Output Current at ON II
I
OLII
1
R
L
=0, V
CC
= V
SMin
,
Ta= -20~75
5
-
-
LH Transmission delay time
t
PLH
2
R
L
=4.7 , C
L
=100
-
100
-
HL Transmission delay time
t
PHL
2
R
L
=4.7 , C
L
=100
-
10
-
Test Circuit 1 Test Circuit 2
S71xxLSF
S71xxLSF
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