Datasheet > LTC1726

LTC1726

更新时间： 2024-09-23 22:55:51

品牌	Logo	应用领域
凌特 - Linear		监控
页数	文件大小	规格书
12页	176K
描述
Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer

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LTC1726 数据手册

Final Electrical Specifications

LTC1726

Triple Supply Monitor and

µP Supervisor with Adjustable

Reset and Watchdog Timer

January 2000

FEATURES

DESCRIPTIO

TheLTC^®1726 isatriplesupplymonitorandmicroproces-

sorsupervisorycircuitwithadjustableresetandwatchdog

functions intended for systems with multiple supply volt-

ages. Theparthasacommonopen-drainresetoutputwith

an adjustable delay. The reset and watchdog time-out

periods are both adjustable using external capacitors.

■

Monitors Three Inputs Simultaneously

LTC1726-5: 5V, 3.3V and ADJ

LTC1726-2.5: 2.5V, 3.3V and ADJ

■

±1.5% Threshold Accuracy Over Temperature

■

Low Supply Current: 16µA Typ

■

Adjustable Reset Timeout

■

Adjustable Watchdog Timeout

Tight 1.5% accuracy specifications and glitch immunity

ensure reliable reset operation without false triggering.

■

Active Low Open-Drain Reset Output

■

Power Supply Glitch Immunity

■

The RST output is guaranteed to be in the correct state for

_CC5/V_CC25orV_CC3downto1V. TheLTC1726 mayalsobe

configured to monitor any one or two V_CCinputs instead

of three, depending on system requirements.

Guaranteed RESET for V_CC3≥ 1V or V_CC25/V_CC5≥ 1V

MS8 and SO-8 Packages

DESCRIPTIO

The low (16µA typical) supply current makes the LTC1726

ideal for power-conscious systems.

■

Desktop Computers

■

Notebook Computers

, LTC and LT are registered trademarks of Linear Technology Corporation.

■

Intelligent Instruments

■

Portable Battery-Powered Equipment

■

Network Servers

TYPICAL APPLICATIO S

A 3.3V, 5V and 1.8V Monitor

A 3.3V, 2.5V and 1.8V Monitor

1.8V

TRIP

1.8V

TRIP

= 1.665V)

66.5k

3.3V

2.5V

66.5k

0.1µF

100k

47nF

V V

CC25 CC3 CCA

47nF

CC5 CC3 CCA

RST

LTC1726-5

WDI

RESET

µP

RST

WDI

RESET

µP

47nF

LTC1726-2.5

47nF

I/O

GND

1726 TA01

1726 TA02

= 155ms

= 1s

= 155ms

= 1s

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tation that the interconnection ofits circuits as described herein willnotinfringe on existing patentrights.

12 3 4 5 6 7...12

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与LTC1726相关器件

型号	品牌	获取价格	描述	数据表
LTC1726_1	Linear	获取价格	Triple Supply Monitor and ® Supervisor with A
LTC1726-2.5	Linear	获取价格	Precision Quad Supply Monitor in 6-Lead SOT-23
LTC1726-5	Linear	获取价格	Precision Quad Supply Monitor in 6-Lead SOT-23
LTC1726EMS8-2.5	Linear	获取价格	Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer
LTC1726EMS8-2.5#PBF	Linear	获取价格	LTC1726 - Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watch
LTC1726EMS8-2.5#TR	Linear	获取价格	LTC1726 - Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watch
LTC1726EMS8-2.5#TRPBF	Linear	获取价格	LTC1726 - Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watch
LTC1726EMS8-5	Linear	获取价格	Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer
LTC1726EMS8-5#TRPBF	Linear	获取价格	LTC1726 - Triple Supply Monitor and µP Supervisor with Adjustable Reset and Watch
LTC1726ES8-2.5	Linear	获取价格	Triple Supply Monitor and uP Supervisor with Adjustable Reset and Watchdog Timer

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