UCC28703 Overview
The UCC28700 family of flyback power supply controllers provides 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. Low start-up current, dynamically controlled operating states and a tailored modulation profile support...
UCC28703 Key Features
- 1 < 30-mW No-Load Power for 5-Star Rating
- Primary-Side Regulation (PSR) Eliminates Opto
- ±5% Voltage and Current Regulation
- 130-kHz Maximum Switching Frequency Enables
- Patent-Pending Frequency-Jitter Scheme to Ease
- Wide VDD Range Allows Small Bias Capacitor
- Clamped Gate-Drive Output for MOSFET
- Protection Functions: Overvoltage, Low-Line, and
- Programmable Cable pensation (UCC28700
- NTC Resistor Interface (UCC28701, UCC28702
UCC28703 Applications
- USB-pliant Adapters and Chargers for Consumer Electronics (Cell Phones, Tablets and Cameras)