CAT809MSDIGT3 datasheet, PDF - EEWORLD Datasheet

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CAT809MSDIGT3: Description3-Pin Microprocessor Power Supply Supervisors; File Size123KB，11 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn

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CAT809MSDIGT3 Overview

3-Pin Microprocessor Power Supply Supervisors

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CAT803, CAT809, CAT810

3-Pin Microprocessor

Power Supply Supervisors

Description

The CAT803, CAT809, and CAT810 are supervisory circuits that

monitor power supplies in digital systems. The CAT803, CAT809, and

CAT810 are direct replacements for the MAX803, MAX809 and

MAX810 in applications operating over the industrial temperature range.

These devices generate a reset signal, which is asserted while the

power supply voltage is below a preset threshold level and for at least

140 ms after the power supply level has risen above that level. The

underlying floating gate technology, Analog EEPROM used by

ON Semiconductor, makes it possible to offer any custom reset

threshold value. Seven industry standard threshold levels are offered

to support +5.0 V, +3.3 V, +3.0 V and +2.5 V systems.

The CAT803 has an open−drain RESET output (active LOW). The

CAT803 requires a pull−up resistor on the reset output.

The CAT809 features a push−pull RESET output (active LOW) and

the CAT810 features a push−pull RESET output (active HIGH).

Fast transients on the power supply are ignored and the output is

guaranteed to be in the correct state at V

levels as low as 1.0 V.

The CAT803, CAT809, and CAT810 are available in both the

compact 3−pin SOT−23 and SC−70 packages.

Features

http://onsemi.com

SOT−23

TB SUFFIX

CASE 527AG

SC−70

SD SUFFIX

CASE 419AB

PIN CONFIGURATION

GND

RESET

(RESET)

(Top View)

CAT803

CAT809

(CAT810)

3−Lead SOT23

3−Lead SC70

•

Precision Monitoring of

•

+5.0 V (−5%,

−10%, −20%),

+3.3 V (−5%,

−10%),

+3.0 V (−10%) and

+2.5 V (−5%) Power Supplies

Offered in Three Output Configurations:

−

CAT803: Open−Drain Active LOW Reset

−

CAT809: Push−Pull Active LOW Reset

−

CAT810: Push−Pull Active HIGH Reset

Direct Replacements for the MAX803, MAX809 and MAX810 in

Applications Operating over the Industrial Temperature Range

Reset Valid down to V

= 1.0 V

Power Supply Current

Power Supply Transient Immunity

Industrial Temperature Range:

−40°C

to +85°C

Available in SOT−23 and SC−70 Packages

These Devices are Pb−Free and are RoHS Compliant

Computers, Servers, Laptops, Cable Modems

Wireless Communications

Embedded Control Systems

White Goods, Power Meters

Intelligent Instruments

PDAs and Handheld Equipment

MARKING DIAGRAMS

XXXMG

SOT−23

XXX

SC−70

= Specific Device Code

= Month Code

= Pb−Free Package

(*Note: Microdot may be in either location)

Applications

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

Semiconductor Components Industries, LLC, 2012

October, 2012

−

Rev. 33

Publication Order Number:

CAT803/D

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