Datasheet > YB1921

YB1921

更新时间： 2022-12-20 08:19:39

品牌	Logo	应用领域
裕邦科技 - YOBON		微处理器监控
页数	文件大小	规格书
5页	149K
描述
3-Pin Microprocessor Reset Monitor

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YB1921 数据手册

YB1921

3-Pin Microprocessor Reset Monitor

Features

Introduction

The YB1921 is

supervisor Integrated Circuit (IC) designed to monitor

_CCin digital and mixed signal systems and provide a

cost-effective system

Precision V_CCMonitor for 2.8V, 3.0V, 3.3V,

and 5.0V Supplies

140msec Guaranteed Minimum RESET

Output Duration

warning signal when the system power supply is out

of working range, and a reset signal to the host

processor when necessary. No external components

are required.

RESET Output Guaranteed to V_CC=1.0V

Low 18μA Supply Current

V_CCTransient Immunity

The reset output is driven active within 20μsec

of V_CCfalling through the reset voltage threshold.

Reset is maintained active for a minimum of 140msec

after V_CCrises above the reset threshold. The YB1921

has an active-low RESET output. The output of the

YB1921 is guaranteed valid down to V_CC=1V.

Small SOT-23 Package

No External Components

Wide Operating Temperature: 0°C to 85°C

The YB1921 is optimized to reject fast transient

glitches on the V_CCline. Low supply current of 18μA

(V_CC=3.3V) makes these devices suitable for battery

powered applications.

Applications

Computers

Embedded systems

Battery powered equipment

Critical µP power supply monitoring

Application Diagram

YB1921

www.yobon.com.tw

12 3 4 5

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