FSFR2100

FSFR2100 for 450W - Fairchild Power Switch (FPS) for Half-Bridge Resonant Converters

General DescriptionGeneral Description

The FSFR2100 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 FSFR2100 simplifies designs and improves productivity, while improving performance. The FSFR2100 combines power MOSFETs with fast-recovery type body diodes, a highside 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 FSFR2100 can be applied to various resonant converter topologies, such as: series resonant, parallel resonant, and LLC resonant converters.

Product Status/Pricing/PackagingProduct Status/Pricing/Packaging

ProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**
FSFR2100Full ProductionRoHS Compliant$5.29SIP9RAIL TBDLine 1: $Y (Fairchild logo)
&Z (Asm. Plant Code)
&E&3 (3-Digit Date Code)
&K Line 2: FSFR2100

Design ToolsDesign Tools


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VideosVideos


Fairchild Power Switch (FPS™) for Half Bridge Resonant Converters

Fairchild Power Switch (FPS™) for Half Bridge Resonant Converters

LLC Resonant Converter Solutions

LLC Resonant Converter Solutions

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Qualification SupportQualification Support


  • Customer qualification report for the FSFR2100

FeaturesFeatures


  • 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)
  • 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)

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Application NotesApplication Notes

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