XC6131 Series

Watchdog Timeout Period Externally Adjustable Voltage Detector

The XC6131 series are voltage detectors with a watchdog function. The watchdog timeout time and release delay time can be set as desired using a single external capacitor. These voltage detectors are used for microprocessor monitoring, and when the power voltage reaches the detect voltage or an L→H pulse is not input to the watchdog pin within the watchdog timeout time, an L level signal is output from the RESETB pin.

The XC6131 series has a watchdog ON/OFF function. By setting the EN pin to L level, the watchdog function can be turned OFF while the voltage detector that monitors the power voltage continues to operate.

The MRB pin and EN pin are pulled up internally to V_IN, and thus these pins can be left open when not used.

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Typical Application Circuit

Features

Packages

Package	DFN1515-6A	Number of Pins	6
Pcs/Reel	5,000	Package Size(mm)	1.5 x 1.5 x 0.37
Package Dimensions [0.1MB] Taping Specifications [0.1MB] Package Power Dissipasion [0.1MB]

Package	SOT-26	Number of Pins	6
Pcs/Reel	3,000	Package Size(mm)	2.8 x 2.9 x 1.3
Package Dimensions [0.1MB] Taping Specifications [0.1MB] Package Power Dissipation [0.1MB] Perspective [0.1MB] Control Plan [0.1MB]

DATA SHEET

Technical Document

Quality Reports

FAQ

What does the watchdog timer work?

This timer function is continuously monitoring to check whether the microcomputer is normally operating or not and give notice of any abnormal operation.