UC2901 - Isolated Feedback Generator

Unitrode

General Description

The UC1901 family is designed to solve many of the problems associated with closing a feedback control loop across a voltage isolation boundary.

Key Features

An Amplitude-Modulation System for Transformer Coupling an Isolated Feedback Error Signal.
Low-Cost Alternative to Optical Couplers.
Internal 1% Reference and Error Amplifier.
Internal Carrier Oscillator Usable to 5MHz.
Modulator Synchronizable to an External Clock.
Loop Status Monitor.

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UC2901 isolated feedback generator by Unitrode - Datasheet Preview

Datasheet Details

Part number	UC2901
Manufacturer	Unitrode
File Size	593.98 KB
Description	Isolated Feedback Generator
Datasheet	UC2901 Datasheet

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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.

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Isolated Feedback Generator UC1901 UC2901 UC3901 FEATURES • An Amplitude-Modulation System for Transformer Coupling an Isolated Feedback Error Signal • Low-Cost Alternative to Optical Couplers • Internal 1% Reference and Error Amplifier • Internal Carrier Oscillator Usable to 5MHz • Modulator Synchronizable to an External Clock • Loop Status Monitor DESCRIPTION The UC1901 family is designed to solve many of the problems associated with closing a feedback control loop across a voltage isolation boundary. As a stable and reliable alternative to an optical coupler, these devices feature an amplitude modulation system which allows a loop error signal to be coupled with a small RF transformer or capacitor.