DK503 Datasheet | Dongke Semiconductor

OVERVIEW DK503 is a wide output voltage non-isolated low-power AC/DC converter chip. The chip is designed in high integrated CMOS circuit, and has the protection functions of output short circuit, over temperature, over voltage and so on. Built-in high-voltage start-up and self-power module, can real-time monitoring and response to load conditions. MAIN FEATURES - Full voltage input 85V-265V - Built-in 700V high voltage power tube - High voltage constant current starting circuit is integrated inside, no external starting resistance is needed - Patented self-powered technology, no external auxiliary winding power supply - Built-in peak current adjustment function, according to the load real-time adjustment peak current, stable working frequency - The output voltage can be adjusted by FB resistance - Over-temperature, over-voltage, overload, output short circuit protection functions - 4 KV ESD anti-static test TYPICAL APPLICATIONS - DC motor and so on - Induction Cooker, Air Conditioner, DVD power supply LEAD END ARRANGEMENT http://.dkpower.cn LEAD END FUNCTION Pin Number 1 2 3 4 5,6,7,8 Pin Name GND GND FB VDD OC FUNCTIONAL BLOCK DIAGRAM Description Chip power pin Chip power pin Feedback foot Power supply pin Input Pin, external rectified DC input voltage http://.dkpower.cn EXTREME WORKING RANGE Project Symbols Min Supply voltage VDD -0.3 PIN voltage -0.3 Breakdown Voltage -0.3 Peak...