MB3793-30 데이터 시트보기 (PDF) - Fujitsu

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MB3793-30

POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER

Fujitsu 

MB3793-42/30

s BLOCK DIAGRAM

To VCC of all blocks

CTP (3)

Output buffer

RESET

(1)

Comp. O

+

-

I1 ≈ 3µA

I2 ≈ 30µA

QS

RSFF2

QR

QS

RSFF1

QR

(5) VCC

R1 ≈ 280 to

760 kΩ

INH (6)

CTW(2)

Watchdog timer

Pulse generator 1

CK1 (8)

Pulse generator 2

CK2 (7)

Reference

voltage

generator

VREF ≈ 1.24 V

Comp. S

-

VS

+

R1 ≈ 240 kΩ

To GND of all blocks

(4) GND

3

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