ChipDocs - Datasheet Source for Semiconductor and Electronic Circuit Components
More than
4 307 195 
components listed
Description:Power Supply and Watchdog Timer Monitoring Circuit
Manufacturer:Analog Devices
Datasheet:PDF (76.3K).
Click here to download *)

The ADM9690 contains a voltage monitoring comparator and a watchdog timer monitor. It is designed to monitor the 5 V power supply to a microprocessor and the microprocessor operation via a watchdog function. The voltage monitoring comparator monitors the voltage on VMON. If it drops outside tolerance, as will happen during a power-fail, two reset signals are generated. Both reset signals go active (low) simultaneously. They will remain active while VMON is below the threshold, and for 50 ms (RESET(1)) or 60 ms (RESET(2)) after VMON climbs above the reset threshold. RESET(1) is intended to provide a power-on reset signal for the P while RESET(2) is used to hold additional circuitry in a reset state until the P has regained control following a power-up. The voltage monitoring circuitry remains operational with VCC as low as 2 V.

Click here to download ADM9690ARNZ Datasheet
Click here to download ADM9690ARNZ Datasheet
*)Datasheets downloading from ChipDocs is only for our members (paid service). REGISTER NOW for your membership.
Free Subscription to Test & Measurement World Magazine
Free Subscription to Test & Measurement World Magazine
Test & Measurement World Magazine.
Subscribe now for FREE !
Win Win Circuit - PCB,PCBA,Touch Screen,LED Lighting
Win Win Circuit LTD. PCB, PCBA, LCD Module