UCC256301 - Texas Instruments

UCC256301 LLC Resonant Controller Enabling Ultra-Low Standby Power

The UCC256301 is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed to pair with a PFC stage to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power conve.

Features

•1 Hybrid Hysteretic Control (HHC)
  – Best-in-Class Transient Response
  – Easy Compensation Design
• Optimized Low Power Features Enable 75 mW Standby Power Design with PFC on
  – Advanced Burst Mode Opto-Coupler Low Power Operation
  – Helps Enable Compliance to CoC Tier II Standard
• Fast Exit from Burst Mode
• Improved Capacitive Region Avoidance Scheme
• Adaptive Dead-Time
• Internal High-Side Gate Drivers (0.6-A and 1.2-A Capability)
• Robust Soft Start with No Hard Switching
• Over Temperature, Output Over Voltage, Input Over and Under Voltage Protection with Three Levels of Over Current Prote.