UBA20260DB02 23 W 230 V Step-dimming CFL reference design

Archived content is no longer updated and is made available for historical reference only. The UBA20260 circuit is a half-bridge driver IC setup to drive a typical 23 W burner with a lamp current of about 240 mA. Similar lamp types with a nominal lamp power of 20 W can also be driven. The total power drawn from the mains is about 23 W at a nominal mains voltage of 230 V or 120 V (RMS). The UBA20260 board can easily be configured to drive different Compact Fluorescent Lamps (CFL) of different power ratings. Driving different CFL is possible by changing the inductor tap and installing a different lamp capacitor.