LNK364 IC - Low Power Offline Switcher IC

The LNK364 incorporates 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. Features:- • Proprietary IC trimming and transformer construction techniques enable Clampless™ designs with LNK362 for lower system cost, component count and higher efficiency • Fully integrated auto-restart for short circuit and open loop protection • Self-biased supply – saves transformer auxiliary winding and associated bias supply components • Frequency jittering greatly reduces EMI • Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package • Lowest component count switcher solution Specification:- Symbol Parameter Min Type Max Units tLEB Leading Edge Blanking Time 170 250 ns I2f Power Coefficient 7425 8250 A2Hz TILD Current Limit Delay 125 ns TSD Thermal Shutdown Temperature 135 142 150 °C TSHD Thermal Shutdown Hysteresis 75 °C Related Document:- LNK364 IC Data Sheet XT incorporates a 700 V power MOSFET, oscillator, source, frequency jittering, cycle-by-cycle current limit and