Product Summary

The monolithic integrated circuits contain all thefunctions necessary to monitor and control the outputofasophisticatedpowerOver-voltage (O.V.) sensing with provision to triggeranexternalSCR“crowbar”undervoltage (U.V.) circuit which can be used tomonitor either the output or to sample the input linevoltage; and a third op amp/comparator usable forcurrent sensing (C.L.) are all included in this device,together with an independent, accurate referencegenerator

Parametrics

Specifications of UC1543J
Voltage Supervisor Type Voltage Monitor Number Of Voltage Supervisors 1
Monitored Supervisor Voltage 2.5 Reset Threshold Voltage (min) 2.45V
Reset Threshold Voltage (max) 2.55V Operating Supply Voltage (min) 4.5V
Operating Supply Voltage (max) 40V Power Dissipation 1W
Package Type CDIP Operating Temperature Classification Military
Operating Temp Range -55C to 125C Pin Count 16
Mounting Through Hole Lead Free Status / RoHS Status Not Compliant

Features

FEATURESIncludes Over-Voltage, Under-Voltage, andCurrent Sensing CircuitsInternal 1% Accurate ReferenceProgrammable Time DelaysSCR “Crowbar” Drive of 300 mARemote Activation CapabilityOptional Over-Voltage LatchUncommitted Comparator Inputs for LowVoltage Sensing (UC1544 Series Only)

Diagrams