FAN7688 Overview
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.
FAN7688 Key Features
- Secondary Side PFM Controller for LLC Resonant
- Charge Current Control for Better Transient
- 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
- Disabling SR at Light-Load Condition
- Protection Functions with Auto-Restart
- Over-Current Protection (OCP)
- Output Short Protection (OSP)
