LTC1726 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1726

Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watchdog Timer

Linear Technology 

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Block Diagram

LTC1726

WDI

5

VCC3

1

VCC5/VCC25

2

VCCA

3

GND

4

TRANSITION DETECT

–

+

–

+

–

1V +

BANDGAP

REFERENCE

WATCHDOG

TIMER

VCC3

2µA WT

7

+

CWT

22µA

POWER

DETECT

VCC

INTERNAL

VCC5/VCC25

ADJUSTABLE

RESET

PULSE

GENERATOR

VCC3

6µA

RST

6

2µA

22µA

RT

8

+

CRT

1726 BD

Timing Diagram

VCC Monitor Timing

VCCX

VRTX

tUV

tRT

RST

1.5V

1726 TD01

Watchdog Timing Diagram

WDI

tWP

tWT

tRT

tWT

tRT

RST

1.5V

1726 TD02

For more information www.linear.com/LTC1726

1726fd

7

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