UCC28722DBVR Datasheet PDF - TI

Description

●The UCC28722 flyback power supply controller provides isolated-output constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The device processes

●information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.

●Features

●• < 50-mW No-Load Power

●• Primary-Side Regulation (PSR) Eliminates OptoCoupler

●• Dynamic BJT Drive

●• ± 5% Voltage and Current Regulation Across Line and Load

●• 80-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs

●• Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency

●• Wide VDD Range Allows Small Bias Capacitor

●• Output Overvoltage, Low-Line, and Overcurrent Protection Functions

●• Programmable Cable Compensation

●• SOT23-6 Package

●Applications

●• USB-Compliant Adapters and Chargers for Consumer Electronics

●– Smart Phones

●– Tablet Computers

●– Cameras

●• Standby Supply for TVs and Desktops

●• White Goods