TOP250YN

POWER INTEGRATIONS  TOP250YN  芯片, 交流/直流转换器, 反激式, TO-220-6

The is a 135W extended power design flexible integrated Off-line Switcher uses the same proven topology as TOPSwitch and it integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to improve design flexibility, performance and energy efficiency. Line feed-forward with maximum duty cycle DCMAX reduction rejects line ripple and limits DCMAX at high line.

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Eliminate or reduce cost of external components

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Fully integrated soft-start for minimum stress/over-shoot

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Externally programmable accurate current limit

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Wider duty cycle for more power, smaller input capacitor

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Line under-voltage detection - No turn OFF glitches

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Line over-voltage shutdown extends line surge limit

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Regulates to zero load without dummy loading

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Hysteretic thermal shutdown for automatic fault recovery

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Large thermal hysteresis prevents PC board over-heating