UCC28740 Datasheet - Texas Instruments

UCC28740 Constant-Current Flyback Controller

The UCC28740 isolated-flyback power-supply controller provides Constant-Voltage (CV) using an optical coupler to improve transient response to largeload steps. Constant-Current (CC) regulation is accomplished through Primary-Side Regulation (PSR) techniques. This device processes information from op.

UCC28740 Features

* 1 Less than 10-mW No-Load Power Capability

* Optocoupled Feedback for CV, and Primary-Side Regulation (PSR) for CC

* Enables ±1% Voltage Regulation and ±5% Current Regulation Across Line and Load

* 700-V Startup Switch

* 100-kHz Maximum Switching Frequency En

UCC28740-etcTI.pdf