Datasheet > ResetICs> RT9801BCE

RT9801BCE

更新时间： 2024-11-27 06:08:51

品牌	Logo	应用领域
立锜 - RICHTEK		/
页数	文件大小	规格书
6页	138K
描述
USER PROGRAMMABLE MICRO POWER VOLTAGE DETECTORS

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中文翻译

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数据手册

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RT9801BCE 数据手册

Preliminary

RT9801

User Programmable Micro-Power Voltage Detectors

General Description

Features

The RT9801 is a micro-power voltage detector

supervising the power supply voltage level for

microprocessors (µP) or digital systems. It provides

user programmable threshold levels with 0.1V step

ranging from 1.5V to 5V, which covers most digital

applications. It features low supply current of 3µA.

^zUser Programmable Threshold 1.5V to 5V in

0.1V Step with 3% Accuracy

^zLow Supply Current 3µA

^zQuick Reset within 20µS

^zBuilt-in Recovery Delay 200mS

^zLow Functional Supply Voltage 0.9V

^zSmall SOT-26 Package

Selection of V

is easily achieved through 3 pins

connected to GND, VDD or floating for different

threshold voltage settings. Two versions of threshold

voltages, 1.5V ~ 4V and 2.5V ~ 5V, which are

programmed in factory are offered by customer

demands.

Applications

z Computers

z Controllers

z Intelligent Instruments

z Critical µP and µC Power Monitoring

z Portable/Battery-Powered Equipment

The RT9801 performs supervisory function by

sending out a reset signal whenever the VDD voltage

falls below a preset threshold level. This reset signal

will last the whole period before VDD recovering.

Reset signal will release after VDD is recovered and

lasts for the whole period of Reset Active Time-out

period.

Pin Configurations

Part Number

Pin Configurations

TOP VIEW

RT9801ꢀCE

(Plastic SOT-26)

1. VSET0

2. GND

3. RESET

4. VDD

RT9801 is N-channel, open-drain output and

provided in SOT-26 package.

5. VSET2

6. VSET1

Ordering Information

RT9801ꢀ ꢀ ꢀ

Package Type

E : SOT-26

Typical Application Circuit

Operating temperature range

C: Commercial standard

Reset Threshold

A : 2.5V~5V

VSET0

RT9801

GND

VSET1

GND

VSET2

VDD

B : 1.5V~4V

RESET

VDD

Pull Up

RT9801B V

= 2.5V in this example

DS9801-00 January 2002

www.richtek-ic.com.tw

12 3 4 5 6

中文翻译

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