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3793DC

Power-Voltage Monitoring IC with Watchdog Timer

Cypress Semiconductor 

MB3793-27D/28D/30D

Power-Voltage Monitoring IC

with Watchdog Timer

Description

The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer. A reset signal is output when the

power supply voltage is cut or falls instantaneously. When the power supply recovers normally after resetting, a power-on reset

signal is output to monitor the power supply voltage. A built-in watchdog timer with two inputs for system operation diagnosis can

provide a fail-safe function for various application systems.

Model No.

Marking Code

Detection Voltage

MB3793-27D

3793DY

2.7 V

MB3793-28D

3793DR

2.8 V

MB3793-30D

3793DC

3.0 V

Features

Precise detection of power voltage fall: ±2.5%

Detection voltage with hysteresis

Built-in dual-input watchdog timer

Watchdog timer halt function

Independently-set watchdog and reset times

Open drain output

Package : SOP

Applications

The MB3793 has various uses such as the amusement devices.

Online Design Simulation

Easy DesignSim

This product supports the web-based design simulation tool. It can easily select

external components and can display useful information. Please access from the

following URL.

cypress.transim.com/login.aspx

Cypress Semiconductor Corporation

Document Number: 002-08488 Rev.*C

• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600

Revised June 27, 2017

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