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UC3544 - Power Supply Supervisory Circuit

Download the UC3544 datasheet PDF. This datasheet also covers the UC3543 variant, as both devices belong to the same power supply supervisory circuit family and are provided as variant models within a single manufacturer datasheet.

General Description

The monolithic integrated circuits contain all the functions necessary to monitor and control the output of a sophisticated power supply system.

Key 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 Comparator Inputs for Low Voltage Sensing (UC1544 Series Only).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3543-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
UC3543 Power Supply Supervisory Circuit
UC3524 ADVANCED REGULATING PULSE WIDTH MODULATORS
UC3525A Regulating Pulse Width Modulators
UC3527A Regulating Pulse Width Modulators
UC3610 DUAL SCHOTTKY DIODE BRIDGE

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.ti.com 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 • Uncommitted Comparator 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 undervoltage (U.V.