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XR-3543 Datasheet Power Supply Output Supervisory Circuit

Manufacturer: Exar (now MaxLinear)

Overview: XR-15/25/3543 Power Supply Output Supervisory Circuit GENERAL.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

FUNCTIONAL BLOCK DIAGRAM The XR-1543/2543/3543 are monolithic integrated circuits that contain all the functions necessary to monitor and control the output of a power supply system.

Included in the 16-Pin dual-in-line package is a voltage reference, an operational amplifier, voltage parators, and a high-current SCR trigger circuit.

The functions performed by this device include over-voltage senSing, under-voltage sensing and current limiting, with provisions for triggering an external SCR "crowbar." The internal voltage reference on the XR-1543 is guaranteed for an accuracy of ± 1% to eliminate the need for external potentiometers.

Key Features

  • seR.

XR-3543 Distributor