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FSFA2100 Fairchild Power Switch (FPS ) for Half-Bridge PWM Converter February 2013 FSFA2100 Fairchild Power Switch (FPS) for Half-Bridge PWM Converters Features Description The growing demand for higher power density and low Optimized for Complementary Driven Half-Bridge profile in power converter designs has forced designers Soft-Switching Converters to increase switching frequencies. Operation at higher Can be Applied to Various Topologies: Asymmetric frequencies considerably reduces the size of passive PWM Half-Bridge Converters, Asymmetric PWM components, such as transformers and filters. However, Flyback Converters, Asymmetric PWM Forward switching losses have been an obstacle to high- frequency operation. To reduce switching losses and Converters, Active Clamp Flyback Converters allow high-frequency operation, Pulse Width Modulation High Efficiency through Zero-Voltage-Switching (ZVS) (PWM) with soft-switching techniques have been Internal SuperFETs with Fast-Recovery Type developed. These techniques allow switching devices to Body Diode (t =120 ns) rr be softly commutated, which dramatically reduces the Fixed Dead Time (200 ns) Optimized for MOSFETs switching losses and noise. Up to 300 kHz Operating Frequency FSFA2100 is an integrated PWM controller and Internal Soft-Start SuperFET specifically designed for Zero-Voltage- Switching (ZVS) half-bridge converters with minimal Pulse-by-Pulse Current Limit external components. The internal controller includes an Burst-Mode Operation for Low Standby Power oscillator, under-voltage-lockout, leading-edge blanking Consumption (LEB), optimized high-side and low-side gate driver, Protection Functions: Over-Voltage Protection internal soft-start, temperature-compensated precise (OVP), Over-Load Protection (OLP), Abnormal Over- current sources for loop compensation and self- Current Protection (AOCP), Internal Thermal protection circuitry. Compared with discrete MOSFET and PWM controller solution, FSFA2100 can reduce total Shutdown (TSD) cost component count, size, and weight while simultaneously increasing efficiency, productivity, and Applications system reliability. PDP and LCD TVs Desktop PCs and Servers Adapters Telecom Power Supplies Ordering Information Maximum Output Operating Maximum Output Power Part Power without Junction R with Heatsink Package DS(ON MAX) Number Heatsink (1,2) Temperature (V =350~400 V) (1,2) IN (V =350~400 V) IN FSFA2100 -40 to +130C 0.38 200 W 450 W 9-SIP Notes: 1. The junction temperature can limit the maximum output power. 2. Maximum practical continuous power in an open-frame design at 50C ambient. For Fairchilds definition of green Eco Status, please visit: