Datasheet Summary
UBA20261/2
600 V and 350 V power IC for step dimmable CFLs
Rev. 2
- 10 October 2011
Product data sheet
1. General description
The UBA20261/2 are high-voltage power integrated circuits designed to drive and control high powered self-ballasted pact Fluorescent Lamp (CFL) lighting applications operating at mains supply voltages of 120 V or 230 V. The IC includes a half-bridge power circuit consisting of two NMOST power MOSFETs, an advanced feature for step dimming and a lamp current controlled boost feature for boosting cold (amalgam) CFLs.
The controller contains a CFL half-bridge drive function, a high-voltage level-shift circuit with integrated bootstrap diode, an oscillator...