SG1543 Datasheet (Microsemi)

Part SG1543
Description Power Supply Output Supervisory Circuit
Manufacturer Microsemi
Size 554.78 KB
Pricing from 346.6 USD, available from Microchip and Onlinecomponents.com.
Microsemi

SG1543 Overview

Key Specifications

Package: CDIP
Mount Type: Through Hole
Max Voltage (typical range): 40 V
Min Voltage (typical range): 4.5 V

Description

This monolithic integrated circuit contains 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 under-voltage (U.V.) circuit which can be used to monitor either the output or to sample the input line voltage; and a third op amp/comparator usable for current sensing (C.L.) are all included in this IC, together with an independent, accurate reference generator.

Key Features

  • Over-Voltage, Under-Voltage, and Current Sensing Circuits all included
  • Reference Voltage Trimmed to 1% Accuracy
  • SCR "Crowbar" Drive of 300mA
  • Programmable Time Delays
  • Open-Collector Outputs and Remote Activation Capability

Price & Availability

Seller Inventory Price Breaks Buy
Microchip 338 10+ : 346.6 USD View Offer
Onlinecomponents.com 0 3+ : 375.5 USD
5+ : 277.3 USD
8+ : 205.81 USD
10+ : 201.69 USD
View Offer