Part # KA1H0680RFB datasheet

Part Manufacturer: Motorola


Part Description: KA1M0680B KA1M0680RB KA1H0680B KA1H0680RFB Fairchild Power Switch (FPS)

Part Details: KA1M0680B/KA1M0680RB/ KA1H0680B/KA1H0680RFB Fairchild Power Switch(FPS) Features Description · Precision fixed operating frequency The Fairchild Power Switch(FPS) product family is specially · KA1M0680B,KA1M0680RB (67KHz) designed for an off-line SMPS with minimal external · KA1H0680B,KA1H0680RFB (100KHz) components. The Fairchild Power Switch(FPS) consist of high · Pulse by pulse over current limiting voltage power SenseFET and current mode PWM controller IC. · Over load protection PWM controller features integrated fixed oscillator, under · Over voltage protection (Min. 23V) voltage lock out, leading edge blanking, optimized gate turn-on/ · Internal thermal shutdown function turn-off driver, thermal shut down protection, over voltage · Under voltage lockout protection, temperature compensated precision current sources · Internal high voltage sense FET for loop compensation and fault protection circuit. compared to · Latch up mode (KA1M0680B,KA1H0680B) discrete MOSFET and controller or RCC switching converter · Auto restart (KA1M0680RB,KA1H0680RFB) solution, a Fairchild Power Switch(FPS) can reduce total · Soft start component count, design size, weight and at the same timeincrease & efficiency, productivity, and system reliability. It hasa basic platform well suited for cost effective design in either aflyback converter or a forward converter. TO-3P-5L TO-3PF-5L 1 1 1.DRAIN 2.GND 3.VCC 4.FB 5.Soft Start Internal Block Diagram #3 VCC 32V 5V Internal #1 DRAIN Vref bias SFET Good logic #5 Soft Start OSC 5V S Q R #4 FB - 5µA

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KA1H0680RFB.pdf Datasheet