FSL538HFLYGEVB

High performance 800V off-line switcher with HV start-up and SenseFET evaluation board The FSL538 is an integrated peak current mode controlled pulse width modulation (PWM) power switch, specifically designed for off-line switch mode power supplies. The PWM controller includes an advanced soft-start, frequency hopping, optimized gate driver, internal transconductance amplifier, temperature compensated precise current source for loop compensation and enhanced self protections circuitry as well. Compared with a discrete MOSFET and PWM controller solution, the FSL538 allows to reduce total cost, component count, size and weight, while simultaneously increase efficiency, productivity and system reliability. This device provides a basic platform for cost effective design of both isolated and non-isolated flyback converters.

• Integrated rugged 800V super junction MOSFET with SENSEFET technology
• Built-in HV current source for start-up
• Peak current mode control with slope compensation
• Line compensation for maximum overpower limiting
• Advanced soft start for low electrical stress
• Pulse-by-pulse current limit
• Line brown−in, brown-out and overvoltage protection (LOVP)

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