FSFR2000 Datasheet | Fairchild Semiconductor

FSFR-Series - Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converter June 2010 FSFR-Series - Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converters Features - Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant Converter Topology - High Efficiency through Zero Voltage Switching (ZVS) - Internal Uni FET™s with Fast-Recovery Type Body Diode (trr<160ns). - Fixed Dead Time (350ns) Optimized for MOSFETs - Up to 300k Hz Operating Frequency - Pulse Skipping for Frequency Limit (Programmable) at Light-Load Condition - Remote On/Off Control Using Control Pin - Protection Functions: Over-Voltage Protection (OVP), Over-Load Protection (OLP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) Applications - PDP and LCD TVs - Desktop PCs and Servers - Adapters - Tele Power Supplies - Audio Power Supplies Description The FSFR-series include highly integrated power switches designed for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FSFRseries simplifies designs and improves productivity, while improving performance. The FSFR-series bines power MOSFETs with fast-recovery type body diodes, a high-side gate-drive circuit, an accurate current controlled oscillator, frequency limit circuit, soft-start, and built-in protection functions. The high-side gate-drive circuit has a mon-mode noise cancellation capability, which guarantees stable operation with excellent noise immunity. The fast-recovery body diode of the MOSFETs improves reliability against abnormal operation conditions, while minimizing the effect of the reverse recovery. Using the zero-voltage-switching (ZVS) technique dramatically reduces the switching losses and efficiency is significantly improved. The ZVS also reduces the switching noise noticeably, which allows a small-sized Electromagnetic Interference (EMI) filter. The...