ASM1817-20/S

更新时间： 2024-11-27 13:05:39

品牌	Logo	应用领域
ALSC		/
页数	文件大小	规格书
9页	232K
描述
Power Supply Support Circuit, Fixed, 1 Channel, +2.55VV, PBCY3, TO-92, 3 PIN

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ASM1817-20/S 数据手册

February 2005

ASM1817

rev 1.5

Low Power, 3.3V/3.0V µP Reset, Active HIGH, Push-Pull Output

General Description

Applications

The ASM1817 voltage supervisory device with low-power, 3.3V/

3.0V µP Reset, active HIGH, Push-Pull output. Maximum

supply current over temperature is a low 15µA (at 3.6V).

•

Set-top boxes

Cellular phones

PDAs

Energy management systems

Embedded control systems

Printers

The ASM1817 generates an active HIGH reset signal whenever

the monitored supply is out of tolerance. A precision reference

and comparator circuit monitor power supply (V_CC

)

level.

Single board computers

Tolerance level options are 5%, 10% and 20% percent. When

an out-of-tolerance condition is detected, an internal power-fail

signal is generated which forces an active HIGH reset signal.

After V_CCreturns to an in-tolerance condition, the reset signal

Typical Operating Circuit

V_CC

remains active for 150ms to allow the power supply and system

microprocessor to stabilize.

ASM1817

The ASM1817 is designed with a push-pull output stage and

operates over the extended industrial temperature range.

Devices are available in TO-92 and compact surface mount

SOT-23 packages.

Microprocessor

RESET

Other low power products in this family include the ASM1810/

11/12/15/16, ASM1233D and ASM1233M.

GND

Key Features

Block Diagram

•

Low Supply Current

•20 µA maximum (5.5 V)

V_CC

•15 µA maximum (3.6 V)

•

Automatically restarts a microprocessor after power failure

150ms reset delay after V_CCreturns to an in-tolerance con-

Supply

ASM1817

Tolerance

Bias

dition

•

Active HIGH power-up reset

Delay

150ms

Typical

RESET

Precision temperature-compensated voltage reference and

comparator

Reference

•

Eliminates external components

TO-92 and compact surface mount SOT-23 package

Push-Pull output for minimum current drain

Operating temperature -40°C to +85°C

GND

Alliance Semiconductor

2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com

Notice: The information in this document is subject to change without notice

12 3 4 5 6 7...9

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与ASM1817-20/S相关器件

型号	品牌	获取价格	描述	数据表
ASM1817-20/T	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817-20F	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817-20F/T	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817-5	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817-5/S	PULSECORE	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PBCY3, TO-92, 3 PIN
ASM1817-5/T	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817-5F	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817-5F/T	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817R-10	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output
ASM1817R-10/T	ALSC	获取价格	Low Power, 3.3V/3.0V uP Reset, Active HIGH, Push-Pull Output

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