Enhanced, Energy Ef?cient, Low Power Off-Line Switcher IC

LinkSwitch-HF LNK353 LNK354 integrates a 700 V Power MOSFET Oscillator simple ON/OFF control scheme, a high voltage switched current source, frequency jittering, cycle-by-cycle current limit, and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the DRAIN pin, eliminating the need for a bias winding and associated circuitry. The 200 kHz maximum switching frequency allows very low ,ux transformer designs, practically eliminating audible noise with the simple ON/OFF control scheme using standard varnished transformer construction. Ef,cient operation at this high switching frequency is achieved due to the optimized switching characteristics and small capacitances of the integrated Power MOSFET 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 cost. The internal Oscillator frequency is jittered to signi,cantly reduce both the quasi-peak and average EMI minimizing ,ltering cost. By Power Integrations, Inc.
LNK353 's PackagesLNK353 's pdf datasheet
LNK353P
LNK354P
LNK353G
LNK354G
LNK354




LNK353 Pinout, Pinouts
LNK353 pinout,Pin out
This is one package pinout of LNK353,If you need more pinouts please download LNK353's pdf datasheet.

LNK353 Application circuits
LNK353 circuits
This is one application circuit of LNK353,If you need more circuits,please download LNK353's pdf datasheet.


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