TheHV98100/HV98101 LED driver Integrated Circuit (IC) is an off-line, high-powerfactor, buck-boost controller targeted at general LED lighting products, suchas LED lamps and LED lighting fixtures with a maximum power rating of about15W. The IC is targeted at designs at singleline voltages such as 110VAC or 230VAC.


TheHV98100/HV98101 uses a unique control scheme to achieve high-power factor andlow THD simultaneously under all line and load conditions, while maximizingefficiency utilizing valley switching. The average LED current is alsocontrolled in a closed-loop manner to achieve high-LED accuracy.


Other unique features of the ICs are the bootstrap of the IC supply voltage from the output, as well as the unique valley-sensing scheme which allow the use of a standard off-the-shelf inductor to minimize the overall system cost.

  Good LED Current Regulation

  Better than 5% accuracy

  Valley Switching buck-boost Converter with Power Factor Correction (PFC)

  >0.95 Power Factor

  <10% Total Harmonic Distortion (THD)

  Uses a standard off-the-shelf inductor

  No auxiliary winding required

  Single Input Voltage range

  HV98100: 110 Vac ± 15%

  HV98101: 230 Vac ± 15%

  Supports 5W-15W output power