LTC2939H 查看數據表（PDF） - Linear Technology

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LTC2939H

Configurable 4- and 6-Supply Monitors with Watchdog Timer

Linear Technology 

LTC2938/LTC2939

TYPICAL APPLICATIONS

Quad-Supply Monitor (Mode 14) with Watchdog Disabled

5V

3.3V

0.1μF

1.8V

12V

VTRIP = 11.25V

R3

2.15MΩ

1%

R4

100k

1%

V1

V2

0.1μF

V3

V4

RST

LTC2938

R1

9.53k

1%

R2

93.1k

1%

VREF

VPG

GND

WDO

WDI

CRT CWT

CRT

47nF

293839 TA02

SYSTEM

LOGIC

±5V Supply Monitor (Mode 1) with Watchdog Disabled and Unused Inputs Tied High

5V

0.1μF

R3

464k

1%

– 5V

VTRIP = – 4.64V

R4

121k

1%

R1

93.1k

1%

R2

9.53k

1%

V1

V2

V3

V4

LTC2938 RST

VREF

WDO

VPG

GND

WDI

CRT CWT

CRT

47nF

293839 TA03

SYSTEM

LOGIC

293839ff

15

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