UCC28720 Overview
The UCC28720 flyback power supply controller provides isolated-output Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler. The devices process information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current. An internal 700-V start-up switch, dynamicallycontrolled operating states and a tailored...
UCC28720 Key Features
- 1 < 10-mW No-Load Power
- Primary-Side Regulation (PSR) Eliminates Opto
- ±5% Voltage and Current Regulation Across Line
- 700-V Start-Up Switch
- 80-kHz Maximum Switching Frequency Enables
- Wide VDD Range Allows Small Bias Capacitor
- Dynamic BJT Drive
- Overvoltage, Low-Line, and Overcurrent
- Programmable Cable pensation
- SOIC-7 Package
UCC28720 Applications
- USB-pliant Adapters and Chargers for Consumer Electronics