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UL51A Description

UTC UL51A 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.

UL51A Key Features

  • FEATURES
  • No transformer and high voltage electrolysis capacitor
  • Integrated high voltage startup power supply circuit
  • Adjustable output current, max 100mA
  • Inter-chip current deviation < ±5%
  • Efficiency: >90%
  • Power factor: >0.95
  • THD<20%
  • Over temperature protection
  • Application system no EMI problems