The FSFR-HS is a highly integrated power switch designed for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FSFR-HS simplifies designs while improving productivity and performance. The FSFR-HS combines power MOSFETs, a high-side gate-drive circuit, an accurate current controlled oscillator, and built-in protection functions.
Features
Variable Frequency Control with 50% Duty Cycle for Half-Bridge Resonant Converter Topology
High Efficiency through Zero Voltage Switching (ZVS)
Built-in High-Side Gate Driver IC
Internal UniFET™s with Fast-Recovery Type Body Diode (trr=160ns Typical)
Fixed Dead Time (350ns) Optimized for MOSFETs
Operating Frequency Up to 600kHz for Soft-Start
Self Auto-Restart Operation for All Protections, Despite External LVCC Bias
Line UVLO with Programmable Hysteresis Level
Simple On/Off with Line UVLO Pin
Easy Configuration and Compatibility with FAN7930 for Line UVLO without External Components
Protection Functions: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Abnormal Over Current Protection (AOCP), Internal Thermal Shutdown (TSD)