IC DK 124

Function descriptionDK124 is an off-line switching power supply chip, the maximum output power of 24W. Different from the solution of PWM controller and external discrete power DK124, MOS internal integrated PWM controller, 700V power tube and primary peak current detection circuit, the power supply technology of auxiliary power supply can be omitted. Therefore, the external application circuit is greatly simplified.Product features1, full voltage input 85V – 265V2, built-in 700V high voltage power tube3, the internal integration of the high voltage start circuit, without the need for external starting resistor4, built-in 16mS soft start circuit5, the built-in high and low voltage power compensation circuit, the high and low pressure maximum output power to maintain the same6, the patent of the self powered technology, without the need of external auxiliary winding power supply7, built-in frequency modulation circuit, simplify the design of peripheral EMI cost8, complete with over voltage, over temperature, over current, over load, output open circuit / short circuit protectionApplication domain1, DVD, VCR, STB power supply2, adapter, charger power supply3, LED power supplyPower range:Input voltage 185-265V 85-265V 85-165VMaximum output power 24W 18W 24W