LNK3694G-TL

LinkSwitch™-XT2 energy efficient, low power off-line switcher IC with integrated system level protection incorporates a 900V 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. No-load consumption is <lt/>100mW without bias winding at 265VAC input (<lt/>10mW with bias winding). Easily meets all global energy efficiency regulations Applications includes flyback converters, supplies for appliances, industrial systems and metering.

• Output power of 6W at 230VAC ±15% and 4W at 85-265VAC (peak or open frame)
• Easy to design, features superior to linear/RCC, EcoSmart™ extremely energy efficient
• Lowest component count switcher solution, selectable device current limit
• Fully integrated auto-restart for short-circuit and open-loop protection
• Optional self-biased supply, frequency jittering greatly reduces EMI
• Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package
• Output overvoltage protection, input overvoltage line and hysteretic overtemperature protection
• Extended creepage between DRAIN pin and all other pins improves field reliability
• Extremely low component count enhances reliability, allows single-sided PCB
• ON/OFF control provides constant efficiency to very light loads

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