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DK124 - OFF-LINE SWITCH MODE POWER CONTROLLER

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General Description

The DK124 is a secondary side fly-back type AC-DC Switch Mode Power Controlling IC.

Designed with high integration CMOS circuit, it has protection functions for short circuit, secondary side open circuit, over temperature, over voltage and so on.

With built-in HV power transistor and patented Self-Power supply circuit, it has the characteristics of saving external components, simple transformer design with only two windings in isolated output circuit, etc.

Overview

ANHUI DONGKE SEMICONDUCTOR CO., LTD OFF-LINE SWITCH MODE POWER CONTROLLER -DK124 SPECIFICATION 1.

Key Features

  • 90V.
  • 265V wide range AC power input.
  • Built-in 700V HV BJT.
  • Internal integrated high voltage starting circuit, no need for additional resistance.
  • Burst mode (22kHz Intermittent operation mode).
  • Standby power consumption < 0.3W.
  • 65KHz PWM switching frequency.
  • 4KV ESD.
  • Internal power compensation circuit to keep the stability of output in different input situation.
  • Patented self-power supply design, no need for auxiliary winding in transformer.
  • Inter.

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