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Detail

DK1203

Features
· 85V—265V wide range AC power input.
· Build-in 700V power transistor.
· Internal integrated high voltage starting circuit, no need for additional resistance.
· Integrated self-start circuit.
· Pulse-Width Modulation (PWM) controlled system.
· VCC operating voltage range: 4-6V.
· 65kHz switching frequency.
· Automatically turn to skip cycle mode under light load condition.
· Over current, Over loading, Over temperature and Over voltage Protection.
· Standby power consumption

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Product details

Overview

DK1203 is a flyback subside feedback switching power supply control chip. AC-DC switching power supply for high-performance, compact peripheral components. The chip provides extremely comprehensive and high-performance intelligent protection functions, including output short circuit, secondary open circuit, overtemperature,

Overpressure and other functions. The hybrid technology of Burst-mode, dynamic PFM and Hi-mode is used to achieve ultra-low standby power consumption and optimal efficiency in the full voltage range. The chip has built-in high-voltage power tube and self-powered line, with few peripheral components, simple transformer design (the transformer that isolates the output circuit only needs two windings) and other characteristics.

Features

· 85V—265V wide range AC power input.

· Build-in 700V power transistor.

· Internal integrated high voltage starting circuit, no need for additional resistance.

· Integrated self-start circuit.

· Pulse-Width Modulation (PWM) controlled system.

· VCC operating voltage range: 4-6V.

· 65kHz switching frequency.

· Automatically turn to skip cycle mode under light load condition.

· Over current, Over loading, Over temperature and Over voltage Protection.

· Standby power consumption lower then 0.3W.

· Internal frequency modulation circuit to reduce EMI filter cost.