630 V Driver IC for CFL and TL Lamps

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Block Diagram

UBA2021 Block Diagram

UBA2021 Block Diagram


  • Adjustable preheat and ignition time
  • Adjustable preheat current
  • Adjustable lamp power
  • Lamp power independent from mains voltage variations
  • Overpower protection
  • Lamp temperature stress protection at higher mains voltages
  • Capacitive mode protection
  • Protection against a drive voltage that is too low for the power MOSFETs

Target Applications

  • Compact Fluorescent Lamps (CFL)
  • Fluorescent TL lamps


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