FSFR1700US − 200W - Fairchild Power Switch (FPS) for Half-Bridge Resonant Converters

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The FSFR-US 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 FSFRUS series simplifies designs and improves productivity, while improving performance. The FSFR-US 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-US series can be applied to various resonant converter topologies such as series resonant, parallel resonant, and LLC resonant converters.      • Variable Frequency Control with 50% Duty Cycle for Half-Bridge Resonant Converter Topology• High Efficiency through Zero Voltage Switching (ZVS)• Internal UniFETs with Fast-Recovery Type Body Diode• Fixed Dead Time (350ns) Optimized for MOSFETs• Up to 300kHz Operating Frequency• Auto-Restart Operation for All Protections with An External LVCC• Protection Functions: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)

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Product Status/Pricing/Packaging

Product Product & Eco Status *Pricing Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
0 FSFR1700US Not recommended for new design
Green as of Jun 2010
N/A  Details
3.2 x 26 x 10.5mm
RAIL

Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&E (Space)
&E (Space)
&3 (3-Digit Date Code)
&K
Line 2:FSFR1700US
FIT :  7.6  
RƟJC :  10.79  °C/W
0 FSFR1700USL Not recommended for new design
Green as of Apr 2010
N/A  Details
3.2 x 26 x 10.5mm
RAIL

Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&E (Space)
&E (Space)
&E (Space)
&3 (3-Digit Date Code)
&K
Line 2:FSFR1700USL
FIT :  7.6  
RƟJC :  10.79  °C/W

Application Notes

Videos

FSFR2100 Demo - Fairchild Power Switch (FPS™) for Half-Bridge Resonant Converters

FSFR2100 - LLC Resonant Converter Solutions

View all videos



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