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UL52B - HIGH POWER FACTOR LINEAR CONSTANT CURRENT LED DRIVER

General Description

UTC UL52B is a high power factor linear constant current LED driver which is applied to LED lighting.

Through the distinctive constant current control technology, it realizes that constant current accuracy is less than ±5% and output current is adjustable through external resistor.

Key Features

  • No transformer and high voltage electrolysis capacitor.
  • Integrated high voltage startup power supply circuit.
  • Adjustable output current, max 60mA.
  • Inter-chip current deviation < ±5%.
  • Efficiency: >90%.
  • Power factor: >0.95.
  • THD.

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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD UL52B HIGH POWER FACTOR LINEAR CONSTANT CURRENT LED DRIVER CMOS IC  DESCRIPTION UTC UL52B is a high power factor linear constant current LED driver which is applied to LED lighting. Through the distinctive constant current control technology, it realizes that constant current accuracy is less than ±5% and output current is adjustable through external resistor. High power factor and low harmonic distortion are the particular features. The system is simple without transformer and electrolysis capacitor. Therefore, LED lighting batch job can be realized.