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FSFR1800

Fairchild Semiconductor
Part Number FSFR1800
Manufacturer Fairchild Semiconductor
Description Power Switch
Published Feb 10, 2010
Detailed Description FSFR-Series — Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converter May 2008 FSFR-Series — Fairchild Power ...
Datasheet PDF File FSFR1800 PDF File

FSFR1800
FSFR1800

Overview
FSFR-Series — Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converter May 2008 FSFR-Series — Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converters Features ƒ ƒ ƒ Variable Frequency Control with 50% Duty Cycle for Half-bridge Resonant Converter Topology High Efficiency through Zero Voltage Switching (ZVS) Internal SuperFET™s with Fast-Recovery Type Body Diode (trr=120ns) for FSFR2100 and UniFETs with Fast-Recovery Type Body Diode (trr<160ns) for FSFR2000/1900/1800/1700.
Fixed Dead Time (350ns) Optimized for MOSFETs Up to 300kHz 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) Description The FSFR-series are a highly integrated power switches designed for high-efficiency half-bridge resonant converters.
Offering everything necessary to build a reliable and robust resonant converter, the FSFR-series simplifies designs and improves productivity, while improving performance.
The FSFR-series combines 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 common-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 FSFR-series can be applied to variou...


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