s72n31sf AUK Co., Ltd., s72n31sf Datasheet

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s72n31sf

Manufacturer Part Number
s72n31sf
Description
Standard Voltage Detector
Manufacturer
AUK Co., Ltd.
Datasheet
7
Description
Features
Applications
Ordering Information
Outline Dimensions
The function of this low reset Type IC is to accurately reset systems after detecting the supply voltage at the time
of switching power on and instantaneous power off in various CPU and other logic system. Further, this IC, with
its super low consumption current is most suited as a voltage check circuit for a number of products which use
batteries.
• Super low current consumption (I
• High current of output transistor (I
• Hysteresis circuit built in (△V
• It has on delay function to supplement the constant of outer C and R.
• Reset circuits for microcomputers, CPU and MPU.
• Reset circuit for logic circuitry.
• Battery voltage check circuit.
• Circuit for changing over to backup battery.
• Level detecting circuit.
S72NxxSF
Type NO.
S
S
e
e
m
m
i
i
c
c
o
o
n
n
d
d
u
u
c
c
S
t
t
□□: Detecting Voltage Code
= 100mV Typ.)
o
o
CCH
r
r
OL
= 20mA Typ.)
= 1.0uA Typ.)
Marking
N□□
KSD-I5C004-001
2.30~2.50
1.50~1.70
1
2
3
Package Code
Standard Voltage Detector
SOT-23F
S72NxxSF
PIN Connections
1. V
2. GND
3. Vcc
OUT
Unit : mm
1

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s72n31sf Summary of contents

Page 1

Description The function of this low reset Type accurately reset systems after detecting the supply voltage at the time of ...

Page 2

Equivalent Circuit Diagram Maximum ratings Characteristic Supply Voltage Power Dissipation Output Voltage Operating Temperature Range Storage Temperature Range * With PCB(8×8 ㎜ Copper Area) at Glass Epoxy Board (t=1.7 ㎜, Area; 20×20 ㎜) Electrical Characteristics Characteristic Detecting Voltage Hysteresis Voltage ...

Page 3

... Table 1 Electrical Characteristics Characteristic Detecting voltage Test Symbol Test Condition Circuit R =470Ω =H→ ≤0.4V OL KSD-I5C004-001 S72NxxSF (V =5V, Ta=25°C) CC Min. Typ. Max. S72N45SF 4.30 4.50 4.70 S72N42SF 4.00 4.20 4.40 S72N39SF 3.70 3.90 4.10 S72N36SF 3.40 3.60 3.80 S72N33SF 3.10 3.30 3.50 S72N31SF 2.90 3.10 3.30 S72N29SF 2.75 2.90 3.05 S72N27SF 2.55 2.70 2.85 S72N25SF 2.35 2.50 2.65 S72N23SF 2.15 2.30 2.45 Unit V 3 ...

Page 4

Test Circuit 1 Application Circuit (1) Battery Low Indicator Note 1. : Connecting of LED and R2 obtains a voltage drop indicator. Test Circuit 2 (2) Resetting for CPU Note 2. : Connecting of C1 and selection of time constant ...

Page 5

Electrical Characteristic Curves Fig – Fig. 3 △V – Fig – T CCL a Fig – Fig – Fig. 6 ...

Page 6

Fig – Fig – PLH 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 ...

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