ASM1812-5/S

更新时间： 2024-11-24 13:05:39

品牌	Logo	应用领域
ALSC		电源电路电源管理电路
页数	文件大小	规格书
9页	232K
描述
Power Supply Support Circuit, Fixed, 1 Channel, +4.62VV, PBCY3, TO-92, 3 PIN

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ASM1812-5/S 数据手册

February 2005

ASM1812

rev 1.4

Low Power 5V µP Reset Active HIGH, Push-Pull Output

Applications

General Description

The ASM1812 is a voltage supervisory device with low-power,

5V µP Reset, active HIGH, Push-Pull output. Maximum supply

current over temperature is a low 20µA.

•

Set-top boxes

Cellular phones

PDAs

Energy management systems

Embedded control systems

Printers

The ASM1812 issues 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 15%. When an out-of-

tolerance condition is detected, an internal power-fail signal is

generated which forces an active HIGH reset signal. After V_CC

Typical Operating Circuit

returns to an in-tolerance condition, the reset signal remains

active for 150ms to allow the power supply and system

microprocessor to stabilize.

V_CC

ASM1812

The ASM1812 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

GND

RESET

Other low power products in this family include the ASM1810/

11/15/16/17, ASM1233D and ASM1233M.

Key Features

•

Low Supply Current

Block Diagram

•20 µA maximum (5.5 V)

V_CC

•

Automatically restarts a microprocessor after power failure

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

dition

Supply

Tolerance

Bias

ASM1812

•

Active HIGH power-up reset

Precision temperature-compensated voltage reference and

comparator

Delay

150ms

Typical

RESET

•

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

Reference

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ASM1812-5/S相关器件

型号	品牌	获取价格	描述	数据表
ASM1812-5/T	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812-5F	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812-5F/T	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-10	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-10/T	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-10F	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-10F/T	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-15	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-15/T	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output
ASM1812R-15F	ALSC	获取价格	Low Power 5V uP Reset Active HIGH, Push-Pull Output

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