FAN7631 — Advanced PFM Controller for Half-Bridge Resonant Converters
April 2012
FAN7631 Advanced Pulse Frequency Modulation (PFM) Controller for Half-Bridge Resonant Converters
Features
Variable Frequency Control with 50% Duty Cycle
for Half-Bridge Resonant Converter Topologies
High Efficiency with Zero-
Voltage-Switching (ZVS) Up to 600kHz Operating Frequency Built-in High-Side Gate Driver High Gate-Driving Current: +500mA/-1000mA Programmable Dead Time with a Resistor Pulse Skipping and Burst Operation for Frequency
Limit (Programmable) at Light-Load Condition
Simple Remote On/Off Control with Latch or
Auto-Restart (A/R) Using FI or LS Pin
Protection Functions: Over-Vo...