The FAN7631 is a pulse-frequency modulation controller for high-efficiency half-bridge resonant converters that includes a high-side gate drive circuit, an accurate current-controlled oscillator, and various protection functions. The FAN7631 features include variable dead time, operating frequency up to 600kHz, protections such as LUVLO, and a selectable latch or A/R protection using the LS pin for user convenience.
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
