Description 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 FSFRXS series simplifies designs while improving productivity and performance. The FSFR-XS series 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.

Features Variable Frequency Control with 50% Duty Cycle for Half-Bridge Resonant Converter Topology
High Efficiency through Zero Voltage Switching (ZVS)
Internal UniFET™ with Fast-Recovery Body Diode
Fixed Dead Time (350ns) Optimized for MOSFETs
Up to 300kHz Operating Frequency
Auto-Restart Operation for All Protections with External LVCC
Protection Functions: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD)

Applications PDP and LCD TVs
Desktop PCs and Servers
Adapters
Telecom Power Supplies

Manufacturer	onsemi
Product Category	AC DC Converters, Offline Switchers
Series	FSFR-XS
Product	Power Switches
Packaging	Tube
Unit-Weight	0.122782 oz
Mounting-Style	Through Hole
Package-Case	9-SIP Formed Leads
Operating-Temperature	-40°C ~ 130°C (TJ)
Mounting-Type	Through Hole
Supplier-Device-Package	9-SIP (L forming)
Watt	160W
Output-Isolation	Isolated
Internal-Switch-s	Yes
Voltage-Breakdown	500V
Topology	Half-Bridge
Voltage-Start-Up	12.5V
Voltage-Supply-Vcc-Vdd	10 V ~ 25 V
Duty-Cycle	50%
Frequency-Switching	Up to 300kHz
Fault-Protection	Current Limiting, Over Temperature, Over Voltage
Control-Features	Frequency Control
Package-Case	SIP-9