KA1H0680RFBTU

Product Summary

The KA1H0680RFBTU is a Fairchild Power Switch(FPS). The KA1H0680RFBTU is specially designed for an off-line SMPS with minimal external components. The Fairchild Power Switch(FPS) consist of high voltage power SenseFET and current mode PWM controller IC. KA1H0680RFBTU features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gate turn-on/ turn-off driver, thermal shut down protection, over voltage protection, temperature compensated precision current sources for loop compensation and fault protection circuit. compared to discrete MOSFET and controller or RCC switching converter solution, a Fairchild Power Switch(FPS) can reduce total component count, design size, weight and at the same time increase & efficiency, productivity, and system reliability. It has a basic platform well suited for cost effective design in either a flyback converter or a forward converter.

Parametrics

KA1H0680RFBTU absolute maximum ratings: (1)Maximum Drain voltage VD,MAX: 800 V; (2)Drain Gate voltage (RGS=1MΩ)VDGR: 800 V; (3)Gate source (GND)voltage VGS: ±30 V; (4)Drain current pulsed IDM: 24.0 ADC; (5)Single pulsed avalanche energy EAS: 455 mJ; (6)Avalanche current IAS: 16 A; (7)Continuous drain current (TC=25°C)ID: 6.0 ADC; (8)Continuous drain current (TC=100°C)ID: 4.0 ADC; (9)Maximum Supply voltage VCC,MAX: 30 V; (10)Input voltage range VFB: -0.3 to VSD V; (11)Total power dissipation PD: 150 W; (12)Derating: 1.21 W/°C; (13)Operating ambient temperature TA: -25 to +85 °C; (14)Storage temperature TSTG: -55 to +150 °C.

Features

KA1H0680RFBTU features: (1)Precision fixed operating frequency; (2)KA1M0680B,KA1M0680RB (67KHz); (3)KA1H0680B,KA1H0680RFB (100KHz); (4)Pulse by pulse over current limiting; (5)Over load protection; (6)Over voltage protection (Min. 23V); (7)Internal thermal shutdown function; (8)Under voltage lockout; (9)Internal high voltage sense FET; (10)Latch up mode (KA1M0680B,KA1H0680B); (11)Auto restart (KA1M0680RB,KA1H0680RFB); (12)Soft start.

Diagrams