FSFR1800XS

The FSFR-XS series includes 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-XS series simplifies designs while improving productivity and performance. The FSFR-XS 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 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 reverse recovery. Using the zero-voltage-switching (ZVS) technique dramatically reduces the switching losses and significantly improves efficiency. The ZVS also reduces the switching noise noticeably, which allows a small-sized Electromagnetic Interference (EMI) filter.     The FSFR-XS series can be applied to resonant converter topologies such as series resonant, parallel resonant, and LLC resonant converters. Related Resources < href="http://www.fairchildsemi.com/an/AN/AN-4151.pdf">AN-4151 — Half-Bridge LLC Resonant Converter Design Using FSFR-Series Fairchild Power Switch (FPS™)

• Fairchild 1,000 piece Budgetary Pricing. *
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Product	Product Status	Eco Status	*Pricing	Package Type	Leads	Packing Method	Package Drawing	**Package Marking Convention	Qualification Support	RoHS IPC1752	RoHS/REACH/ JIG Certificate of Compliance
FSFR1800XS	Full Production	Green as of Aug 2010	$2.4	SIP 9L	9	RAIL		Line 1:$Y (Fairchild logo) &Z (Asm. Plant Code) &E (Space) &E (Space) &3 (3-Digit Date Code) &K Line 2:FSFR1800XS	RTHETA (JC) :  10.44  °C/W Moisture Sensitivity Level (MSL) :  NA   Max Reflow Temp :  999
FSFR1800XSL	Full Production	Green as of Aug 2010	$2.4	SIP 9L	9	RAIL		Line 1:$Y (Fairchild logo) &Z (Asm. Plant Code) &E (Space) &E (Space) &E (Space) &3 (3-Digit Date Code) &K Line 2:FSFR1800XSL	RTHETA (JC) :  10.44  °C/W Moisture Sensitivity Level (MSL) :  NA   Max Reflow Temp :  999