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DK1203 Key Features

  • 85V-264V wide range AC power input
  • Internal integrated 700V high voltage power transistor
  • Internal integrated constant high voltage current driving circuit, no need for additional resistance
  • Self-power supply circuit design, no need for additional electricity supply to IC, so that could reduce ponent and cost
  • 65KHz PWM switching frequency
  • Standby power: <0.3W
  • Built in frequency jittering function to reduce standby frequency and output voltage ripple
  • Internal Ramp pensation circuit to keep the stability of the circuit
  • Internal PMW oscillation circuit with Frequency jittering control to low down EMI filtering cost
  • Over current, Over temperature, Over voltage, Output short circuit and Secondary side open circuit Protection

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DK1203 Description

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 CMOS circuit design, lots of external ponents are saved, transformer design is simple, only two windings are needed for the transformer in isolated output circuit. APPLICATIONS ·AC/DC power adapters ·Air conditioner power supply ·DVB...