7
Semiconductor
S71xx
Standard Voltage Detector
Description
• The S71xx prevents the error of system from supply voltage below normal voltage level at the time the power on
and instantaneous power off in systems.
Features
•
Current Consumption is Low (I
CCL
=300
㎂
Typ. I
CCH
=30
㎂
Typ.)
•
Resetting Output Minimum Guarantee Voltage is Low (0.8V Typ.)
•
Hysteresis Voltage is Provided (50
㎷
Typ.)
Applications
•
As Control Circuit of Battery-Backed Memory
•
As Measure Against Erroneous Operations at Power On-Off
•
As Resetting Function for the CPU-Mounted Equipment --- PC, Printer, VTR, Fax, C-TV etc.
•
As Measure Against System Runaway at Instantaneous Break of Power Supply etc.
Ordering Information
Type NO.
S71xx
Marking
S71□□
□□:
Detecting Voltage Code
Package Code
TO-92
Outline Dimensions
4.40~4.80
4.40~4.80
Unit : mm
Equivalent Circuit Diagram
0.50 Max.
13.50~14.50
1.27 Typ.
1.27 Typ.
1
3.40~3.60
2 3
0.45 Max.
PIN Connections
1. Vcc
2. GND
3. OUT
KSD-I0A005-000
1
S71xx
Maximum ratings
Characteristic
Supply Voltage
Power Dissipation
Output Voltage
Operating Temperature Range
Storage Temperature Range
Symbol
V
CC
P
D
V
OUT
T
OPR
T
STG
Ratings
-0.3 ~ +15
625
-0.3 ~ +15
-30 ~ +75
-55 ~ +150
(Ta=25°C)
Unit
V
mW
V
℃
℃
Electrical Characteristics
Characteristic
Symbol
Test
Circuit
Test Condition
S7145
S7142
S7139
S7136
Detecting Voltage
V
S
1
R
L
=200Ω
V
CC
=H→L
V
OL
≤0.4V
S7133
S7131
S7129
S7127
S7125
S7123
Hysteresis Voltage
Temperature Coefficient
of Detecting Voltage
Low Level Output voltage
Leakage Current When OFF
Circuit current at ON
Circuit current at OFF
Threshold operating Voltage
Output Current at ON I
Output Current at ON II
L→H Transmission delay time
H→L Transmission delay time
V
S
: Standard Detection Voltage
ΔV
S
V
S
/ΔT
V
OL
I
LEAK
I
CCL
I
CCH
V
OPR
I
OL
I
I
OL
II
t
PLH
t
PHL
1
1
1
1
1
1
1
1
1
2
2
R
L
=200Ω, V
CC
= L→H→L
R
L
=200Ω, Ta= -30 ~ +75℃
R
L
=200Ω, V
CC
= V
S
Min
V
CC
=15V, R
L
=200Ω
V
CC
= V
S
Min
V
CC
= V
S
Max +0.1V
R
L
=200Ω, V
OL
≤0.4V
R
L
=0Ω, V
CC
= V
S
Min - 0.05V
R
L
=0Ω, V
CC
= V
S
Min - 0.05V
Ta= -30 ~ +75℃
R
L
=1.0
㏀,
C
L
=100
㎊
R
L
=1.0
㏀,
C
L
=100
㎊
(V
CC
=5V, Ta=25°C)
Min.
4.35
4.05
3.75
3.45
3.15
2.95
2.75
2.55
2.35
2.15
30
-
-
-
-
-
-
20
16
-
-
Typ.
4.5
4.2
3.9
3.6
3.3
3.1
2.9
2.7
2.5
2.3
50
±0.01
-
-
300
30
0.8
-
-
15
10
Max.
4.65
4.35
4.05
3.75
3.45
3.25
3.05
2.85
2.65
2.45
100
-
0.4
0.1
500
50
1.6
-
-
-
-
Unit
V
㎷
%/℃
V
µA
µA
µA
V
mA
mA
㎲
㎲
KSD-I0A005-000
2
S71xx
Test Circuit 1
Test Circuit 2
Application Circuit
(1) Battery Low Indicator
Note 1. : Connecting of LED and R2 obtains a voltage drop indicator.
(2) Resetting for CPU
KSD-I0A005-000
3
S71xx
Electrical Characteristic Curves
Fig. 1 V
OUT
– V
CC
Fig. 2 I
CC
- V
CC
Fig. 3 I
CCH
– Ta
Fig. 4 I
OL
– R
L
KSD-I0A005-000
4
S71xx
The AUK Corp. products are intended for the use as components in general electronic
equipment (Office and communication equipment, measuring equipment, home
appliance, etc.).
Please make sure that you consult with us before you use these AUK Corp. products
in equipments which require high quality and / or reliability, and in equipments which
could have major impact to the welfare of human life(atomic energy control, airplane,
spaceship, transportation, combustion control, all types of safety device, etc.). AUK
Corp. cannot accept liability to any damage which may occur in case these AUK Corp.
products were used in the mentioned equipments without prior consultation with AUK
Corp..
Specifications mentioned in this publication are subject to change without notice.
KSD-I0A005-000
5
Microcontroller MCU
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