TPS3808

Programmable-Delay Supervisory Circuit

Texas Instruments

TPS3808 Features

* Power-on reset generator with adjustable delay time: 1.25 ms to 10 s

* Very low quiescent current: 2.4 μA typical

* High threshold accuracy: 0.5% typical

* Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V and adjustable voltage down to 0.4 V are

TPS3808 General Description

The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset ( MR) pin drops to a logic low. The RESET output remains low for the user-adjusta.

TPS3808 Datasheet (1.91 MB)