FAN7688 - Fairchild Semiconductor

FAN7688 Advanced Secondary Side LLC Resonant Converter Controller

FAN7688 —Advanced Secondary Side LLC Resonant Converter Controller with Synchronous Rectifier Control November 2015 FAN7688 Advanced Secondary Side LLC Resonant Converter Controller with Synchronous Rectifier Control Features  Secondary Side PFM Controller for LLC Resonant Converter with Synchronous Rectifier Control  Charge Current Control for Better T.

Features

 Secondary Side PFM Controller for LLC Resonant Converter with Synchronous Rectifier Control
 Charge Current Control for Better Transient Response and Easy Feedback Loop Design
 Adaptive Synchronous Rectification Control with Dual Edge Tracking
 Closed Loop Soft-Start for Monotonic Rising Output
 Wide Operating Frequency (39 kHz ~ 690 kHz)
 Green Functions to Improve Light-Load Efficiency - Symmetric PWM Control at Light-Load to Limit the Switching Frequency while Reducing Switching Losses - Disabling SR at Light-Load Condition
 Protection Functions with Auto-Restart - Over-Current Prot.