Datasheet > RT9834B-12GH

RT9834B-12GH

更新时间： 2024-11-09 00:26:39

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
13页	157K
描述
Micro-Power Voltage Detector with Manual Reset

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RT9834B-12GH 数据手册

RT9834

Micro-Power Voltage Detector with Manual Reset

General Description

Features

^zInternally Fixed Threshold 1.2V to 5V in 0.1V Step

The RT9834 is a micro-power voltage detector with

deglitched manual reset input supervising the power supply

voltage level for microprocessors (μP) or digital systems.

It provides internally fixed threshold levels with 0.1V per

step ranging from 1.2V to 5V, which covers most digital

applications. It features low supply current of 3μA. The

RT9834 performs supervisory function by sending out a

reset signal whenever the V_DDvoltage falls below a preset

threshold level. This reset signal will last the whole period

before V_DDrecovering. Once V_DDrecovered upcrossing

the threshold level, the reset signal will be released after

a certain delay time. To pull reset signal low manually,

just pull the manual reset input (MR) below the specified

V_ILlevel. The RT9834 is available in the SC-82 and

SOT-143 packages.

^zHigh Accuracy 1.5%

^zLow Supply Current 3μA

^zNo External Components Required

^zQuick Reset within 20μs

^zBuilt-in Recovery Delay : 0ms, 55ms, 220ms, 450ms

Options

^z800ns Glitch Immunity of Manual Reset Input

^zLow Functional Supply Voltage 0.9V

^zCMOS Push-Pull Output

^zSmall SC-82 and SOT-143 Packages

^zRoHS Compliant and Halogen Free

Applications

z Computers

z Controllers

z Intelligent Instruments

z Critical μP and μC Power Monitoring

z Portable/Battery-Powered Equipment

Marking Information

For marking information, contact our sales representative

directly or through a Richtek distributor located in your

area.

Simplified Application Circuit

RT9834

VDD

µp

RESET/

RESET

RESET/

RESET

GND

is a registered trademark of Richtek Technology Corporation.

DS9834-00 May 2013

www.richtek.com

12 3 4 5 6 7...13

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