UC1543 Datasheet - Texas Instruments

UC1543 Power Supply Supervisory Circuit

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 undervoltage (U.V.) circuit which can be used to monitor eithe.

UC1543 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

* Uncommitted Comparat

UC1543 Datasheet (1.61 MB)