UBA2028
600 V dimmable power IC for compact fluorescent lamps
Rev. 02 — 19 July 2010
Product data sheet
1. General d...
UBA2028
600 V dimmable power IC for compact fluorescent lamps
Rev. 02 — 19 July 2010
Product data sheet
1. General description
The UBA2028 is a high voltage power IC that drives and controls electronically ballasted Compact Fluorescent Lamps (CFLs). The IC includes a Metal-Oxide-Semiconductor
Transistor (MOST) half-bridge power circuit, a dimming function, a high voltage level shift circuit, an oscillator function, a lamp voltage monitor, a current control function, a timer function and various protections.
2. Features and benefits
Two internal 600 V, 3 Ω max MOST half-bridge power circuits For steady state currents up to 280 mA For ignition currents up to 1.5 A Adjustable preheat time Adjustable preheat current Current controlled operating Single ignition attempt Adaptive non-overlap time control Integrated high voltage level shift function Power-down function Protection against lamp failures or lamp removal Capacitive mode protection
3. Appl...