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8A/800V 70KHz Power Switch
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General Description
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The Fairchild Power Switch (FPS) product family 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. 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 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.
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Features
- Precision fixed operating frequency
- KA1L0880B(50KHz), KA1M0880B(67KHz)
- Pulse by pulse current limiting
- Over load protection
- Over voltage protection (Min. 23V)
- Internal thermal shutdown function
- Under voltage lockout
- Internal high voltage sense FET
- Latch up Mode
- Soft start
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