Datasheet > FM803

FM803

更新时间： 2024-02-04 14:25:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		监控
页数	文件大小	规格书
7页	347K
描述
3-Pin レC Supervisor Device

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FM803 数据手册

October 2002

FM803

3-Pin µC Supervisor Device

General Description

Features

The FM803 is a supervisory device designed to monitor power

supply or other system voltage. FM803 generates a reset pulse

whenever the voltage being monitored is out of tolerance. Once

asserted, the reset pulse is guaranteed to be valid for a minimum

of 140ms (256ms typical ). The reset output of FM803 is of active

low Open-Drain type and has an internal pull-up resistor.

I Automatic reset generation on power-up

I Minimum 140 ms reset pulse

I Internal 5kΩ pull-up resistor

I Other reset pulse choices available: 32 - 256 ms

I Operating temperature

-40°C to + 105°C (SOT-23)

-40°C to +85°C (SC70)

Several threshold voltages are offered to accommodate 5.0V,

3.3V, 3.0V and 2.7V system voltages.

I Choice of Reset Thresholds: 4.63V, 4.38V, 4.00V, 3.08V,

2.93V, 2.63V

Thesedevicesareofferedinspacesaving3-pinSOT23andSC70

packages.

I SOT23-3 and SC70-3 Packages

Typical Operating Circuit

FM803

Controller

/RESET

GND

Connection Diagram

GND

FM803 3 V

/RESET

SC70-3 & SOT23-3 Packages

FM803 Rev. C.3

www.fairchildsemi.com

12 3 4 5 6 7

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