Product Summary

The KA1M0380RB is a Fairchild Power Switch. The KA1M0380RB is specially designed for an off-line SMPS with minimal external components. The KA1M0380RB consist of high voltage power SenseFET and current mode PWM controller IC. PWM controller 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 SPS 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

KA1M0380RB absolute maximum ratings: (1)Drain-source (GND) voltage (1) VDSS: 800 V; (2)Drain-Gate voltage (RGS=1MΩ) VDGR: 800 V; (3)Gate-source (GND) voltage VGS: ±30 V; (4)Drain current pulsed (2) IDM: 12 ADC; (5)Single pulsed avalanche energy (3) EAS: 95 mJ; (6)Avalanche current(4) IAS: 6 A; (7)Continuous drain current (TC=25℃) ID: 3.0 ADC; (8)Continuous drain current (TC=100℃) ID: 2.1 ADC; (9)Supply voltage VCC: 30 V; (10)Analog input voltage range VFB: -0.3 to VSD V; (11)Total power dissipation PD: 35 W; (12)Derating: 0.28 W/℃; (13)Operating temperature TOPR: -25 to +85℃; (14)Storage temperature TSTG: -55to +150℃.

Features

KA1M0380RB features: (1)Precision fixed operating frequency; (2)KA1L0380B/KA1L0380RB (50KHz); (3)KA1M0380RB (67KHz); (4)KA1H0380RB (100KHz); (5)Pulse by pulse over current limiting; (6)Over load protection; (7)Over voltage protection (Min. 23V); (8)Internal thermal shutdown function; (9)Under voltage lockout; (10)Internal high voltage sense FET; (11)Auto restart (KA1L0380RB/KA1M0380RB/KA1H0380RB).

Diagrams

KA1M0380RB block diagram

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KA1M0380RB
KA1M0380RB

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