UC2543 Datasheet | Texas Instruments

.ti. UC1543, UC1544 UC2543, UC2544 UC3543, UC3544 SLUS188A - APRIL 1997 - REVISED FEBRUARY 2007 Power Supply Supervisory Circuit Features - Includes Over-Voltage, Under-Voltage, and Current Sensing Circuits - Internal 1% Accurate Reference - Programmable Time Delays - SCR “Crowbar” Drive of 300 mA - Remote Activation Capability - Optional Over-Voltage Latch - Unmitted parator Inputs for Low Voltage Sensing (UC1544 Series Only) DESCRIPTION The monolithic integrated circuits contain all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage (O.V.) sensing with provision to trigger an external SCR “crowbar” shutdown; an...