Dongke Semiconductor DK112
The DK112 is specially design for low power switch mode control, it is widely use in small household electrical appliances.DESCRIPTION
2.APPLICATIONS
●Battery charger●Power AC/DC adapters
●STB power supply
●Electromagnetic oven power supply
●DVD/VCD power supply
●Air conditioner power supply
●AC/DC LED driver applications
●TV/Monitor power supply 3. MAIN
FEATURES
● 85V—265V wide range AC power input.● 65KHz Oscillation Frequency.
● Double chip design with Bipolar Junction Transistor (BJT) to save cost.
● Large scale MOS digital circuit design with E pole BJT driving, so that to enhance its High Voltage Resistance capability.
● Self-power supply design, no need for additional IC to supply the electricity.
● Internal integrated constant high voltage current driving circuit, no need for additional resistance.
● Over current, Over loading, Over temperature, Over voltage, Output short circuit and photo-coupler Failure Protection.
● Internal Ramp Compensation circuit to keep the stability of the circuit in low voltage and high power condition.
● Internal PMW oscillation circuit with Frequency jittering control to keep EMC characteristics.