UCC28701 Overview
Description
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.
Key Features
- 1 < 30-mW No-Load Power for 5-Star Rating
- Primary-Side Regulation (PSR) Eliminates Opto- Coupler
- ±5% Voltage and Current Regulation
- 130-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs
- Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency
- Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance
- Wide VDD Range Allows Small Bias Capacitor
- Clamped Gate-Drive Output for MOSFET
- Protection Functions: Overvoltage, Low-Line, and Overcurrent
- Programmable Cable Compensation (UCC28700 Only)
