off-line switch mode power supply, 24W
Functional Description
DK125 is an off-line switching power supply chip, the maximum output power of 24W. Unlike the PWM controller and the external discrete power MOS combination solution, the DK125 integrates a PWM controller, a 700V power transistor and a primary peak current detection circuit, and uses a patented self-powered technology that can omit the auxiliary supply winding, Simplifies peripheral applications, reduces the number of originals, circuit size and weight, especially for cost-sensitive flyback switching power supplies.
· 90V—265V wide range AC power input. · Build-in 700V power transistor. · Internal integrated high voltage starting circuit, no need for additional resistance. · Internal 16mS soft-start circuit. · Internal power compensation circuit to keep the stability of max. output power in both high and low voltage. · Patent dynamic self-power supply, no need for auxiliary winding. · Internal frequency modulation circuit to reduce EMI filter cost. · Over current, Over loading, Over temperature, Over voltage and Short circuit Protection.
Maximum output power 24W 24W 18W
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