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UC39431B - Precision Adjustable Shunt Regulator

Download the UC39431B datasheet PDF. This datasheet also covers the UC39431 variant, as both devices belong to the same precision adjustable shunt regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The UC39431 is an adjustable shunt voltage regulator with 100mA sink capability.

The architecture, comprised of an error amplifier and transconductance amplifier, gives the user separate control of the small signal error voltage frequency response along with a fixed linear transconductance.

Key Features

  • Multiple On-Chip Programmable Reference Voltages.
  • 0.4% Initial Accuracy.
  • 0.7% Overall Reference Tolerance.
  • 2.2V to 36.0V Operating Supply Voltage and User Programmable Reference.
  • 36.0V Operating Supply Voltage.
  • Reference Accuracy Maintained For Entire Range of Supply Voltage.
  • Superior Accuracy and Easier Compensation for Optoisolator.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC39431-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UC39431B
Manufacturer Unitrode
File Size 179.39 KB
Description Precision Adjustable Shunt Regulator
Datasheet download datasheet UC39431B Datasheet

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Other Datasheets by Unitrode

Part Number Description
UC39431 Precision Adjustable Shunt Regulator
UC39432 Precision Analog Controller
UC39432B Precision Analog Controller
UC3901 Isolated Feedback Generator
UC3906 Sealed Lead-Acid Battery Charger

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
Precision Adjustable Shunt Regulator UC19431 UC29431 UC39431 UC39431B FEATURES • Multiple On-Chip Programmable Reference Voltages • 0.4% Initial Accuracy • 0.7% Overall Reference Tolerance • 2.2V to 36.0V Operating Supply Voltage and User Programmable Reference • 36.0V Operating Supply Voltage • Reference Accuracy Maintained For Entire Range of Supply Voltage • Superior Accuracy and Easier Compensation for Optoisolator Application • Improved Architecture Provides a Known Linear Transconductance with a +5% Typical Tolerance DESCRIPTION The UC39431 is an adjustable shunt voltage regulator with 100mA sink capability.