UC1901J

隔离反馈发生器 Isolated Feedback Generator

DESCRIPON

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.

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