TNY265PG

POWER INTEGRATIONS  TNY265PG  芯片, 交流/直流转换器, 85-265VAC, 11W, 8DIP

The is an enhanced energy-efficient low power offline Switcher with fully integrated auto-restart for short circuit and open loop fault protection. TinySwitch-II integrates a 700V power MOSFET, oscillator, high voltage switched current source, current limit and thermal shutdown circuitry onto a monolithic device. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias winding and associated circuitry. In addition, the TinySwitch-II device incorporates auto-restart, line undervoltage sense and frequency jittering. An innovative design minimizes audio frequency components in the simple ON/OFF control scheme to practically eliminate audible noise with standard taped/varnished transformer construction. The fully integrated auto-restart circuit safely limits output power during fault conditions such as output short circuit or open loop, reducing component count and secondary feedback circuitry.

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Built-in circuitry practically eliminates audible noise with ordinary dip-varnished transformer

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Programmable line undervoltage detect prevents power ON/OFF glitches - Saves external components

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Frequency jittering dramatically reduces EMI

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Very tight tolerances and negligible temperature variation on key parameters eases design

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Lowest component count switcher solution

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Lower system cost than RCC, discrete PWM and other integrated/hybrid solutions

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Simple ON/OFF control - No loop compensation needed

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No bias winding

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Simple design practically eliminates rework in manufacturing

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High voltage powered - Ideal for charger

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High bandwidth provides fast turn-ON with no overshoot

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Current limit operation rejects line frequency ripple

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Built-in current limit and thermal protection improves safety

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Control circuit common, internally connected to output MOSFET source

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Output MOSFET source connection for high voltage return

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5.8V Regulator and 6.3V shunt voltage clamp