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Product details

LNK364 Low Power Off-Line Switcher ICLinkSwitch-XT incorporates a 700 V power MOSFET, oscillator,simple ON/OFF control scheme, a high-voltage switched currentsource, frequency jittering, cycle-by-cycle current limit andthermal shutdown circuitry onto a monolithic IC. The startupand operating power are derived directly from the DRAINpin, eliminating the need for a bias winding and associatedcircuitry. Features of LNK364: Optimized for Lowest System Cost Proprietary IC trimming and transformer constructiontechniques enable Clampless(TM) designs with LNK362for lower system cost, component count and higherefficiency Fully integrated auto-restart for short circuit andopen loop protection Self-biased supply - saves transformer auxiliary windingand associated bias supply components Frequency jittering greatly reduces EMI Meets HV creepage requirements between DRAIN andall other pins both on the PCB and at the package Lowest component count switcher solution Accurate hysteretic thermal shutdown protection -automatic recovery improves field reliability Universal input range allows worldwide operation Simple ON/OFF control, no loop compensation needed Eliminates bias winding - simpler, lower costtransformer Very low component count - higher reliability and singleside printed circuit board Auto-restart reduces delivered power by 95% duringshort circuit and open loop fault conditions High bandwidth provides fast turn-on with no overshootand excellent transient load response Extremely Energy Efficient Easily meets all global energy efficiency regulations withno added components No-load consumption <300 mW without bias winding at265 VAC input (<50 mW with bias winding) ON/OFF control provides constant effi ciency to verylight loads - ideal for mandatory CEC regulations