Secondary side flyback type AC-DC Switch Mode Power Controlling IC
Introduction
The DK1203 is a secondary side flyback type AC-DC Switch Mode Power Controlling IC. With integrated 700V high voltage power transistor,patented self-power supply circuit and integrated MOS circuit design, lots of external components are saved, transformer design is simple, only two windings is needed for the transformer in isolated output circuit.
Description
Input voltage 85V to 265V full voltage range
Built-in 700V power tube
Built-in self-powered circuit (patented), no auxiliary winding power supply
Integrated self-starting circuit
Current mode PWM control
VCC operating voltage range of 4V to 6V
65Khz switching frequency
Auto-enter skip cycle mode at light load
Over-temperature, over-current, over-voltage, overload protection
Standby power consumption is less than 0.3W
Frequency jitter reduces EMI filtering cost
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