Datasheet > RT9802B

RT9802B

更新时间： 2024-11-28 23:33:19

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
6页	102K
描述
Power Management/Voltage Dector

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

RT9802B 数据手册

Preliminary

RT9802

User Programmable Micro-Power Voltage Detectors

General Description

Features

The RT9802 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.

Selection of V_THis 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.

z User Programmable Threshold 1.5V to 5V in

0.1V Step with ±3% Accuracy

z Low Supply Current 3µA

z Quick Reset within 20µS

z Built-in Recovery Delay 200mS

z Low Functional Supply Voltage 0.9V

z Small SOT-26 Package

Applications

z Computers

z Controllers

z Intelligent Instruments

z Critical µP and µC Power Monitoring

z Portable/Battery-Powered Equipment

The RT9802 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

RT9802ꢀCE

1. VSET0

2. GND

3. RESET

4. VDD

(Plastic SOT-26)

RT9802 is CMOS, active-low output and provided in

SOT-26 package.

5. VSET2

6. VSET1

Ordering Information

RT9802ꢀ ꢀ ꢀ

Package Type

E : SOT-26

Typical Application Circuit

Operating temperature range

C: Commercial standard

VSET0

VSET1

µP

GND

RT9802

Reset Threshold

A : 2.5V~5V

GND

VSET2

VDD

B : 1.5V~4V

RESET

RT9802B V

= 2.5V in this example

DS9802-00 January 2002

www.richtek.com

12 3 4 5 6

中文翻译

下载PDF

与RT9802B相关器件

型号	品牌	获取价格	描述	数据表
RT9802-BGE	RICHTEK	获取价格	User Programmable Micro-Power Voltage Detectors
RT9802-BPE	RICHTEK	获取价格	User Programmable Micro-Power Voltage Detectors
RT9807	RICHTEK	获取价格	Micro-Power Voltage Detector with Manual Reset
RT9807_15	RICHTEK	获取价格	Micro-Power Voltage Detector
RT9807-12GB	RICHTEK	获取价格	Micro-Power Voltage Detector
RT9807-13GB	RICHTEK	获取价格	Micro-Power Voltage Detector
RT9807-32GB	RICHTEK	获取价格	Micro-Power Voltage Detector
RT9807-33GB	RICHTEK	获取价格	Micro-Power Voltage Detector
RT9808	ETC	获取价格	MICRO POWER VOLTAGE DETECTORS
RT9808-15CB	ETC	获取价格	MICRO POWER VOLTAGE DETECTORS