3793AF 查看數據表（PDF） - Fujitsu

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3793AF

Power Voltage Monitoring IC with Watchdog Timer

Fujitsu 

s BLOCK DIAGRAM

MB3793-37A

To VCC of all blocks

I1 =.. 3 µA

I2 .=. 30 µA

CTP 3

RESET 1

Output circuit

Logic circuit

5 VCC

R1 =..

494 kΩ

INH 6

CTW 2

Pulse generator 1

CK1 8

Watchdog

timer

Pulse generator 2

CK2 7

Reference

voltage

generator

VREF =.. 1.24 V

Comp.S

−

VS

+

To GND of

all blocks

R2 .=.

240 kΩ

4 GND

3

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