Microprocessor_supervisory_circuit_with_on_board_chip_enable

Published:2009/7/23 21:37:00 Author:Jessie | From:SeekIC

Figures 1-38 and 1-39 show a typical application circuit and pin configuration, respectively, for the MAX791. The IC is similar to that described for Figs. 1-J through 1-M, but with on-board chip-enable. The IC has a 200-ms reset pulse width, 1-μA standby current, 250-mA output in VCC mode, 25-mA output in battery-backup, 1.25-V threshold detector for power-fail warning, low-battery detection, or for monitoring a supply other than +5 V, a separate low-line comparator that compares VCC to a threshold 150 mV above the reset threshold, and a pulsed watchdog output to give advance warning of impending WDO assertion caused by watchdog timeout. MAX[M HIGH-RELIABILITY DATA Book, 1993, P. 5-35.



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