General description
The UBA2024 is a family of high-voltage monolithic Integrated Compact Fluorescent Lamp (CFL) drivers for a large range of lamp powers. Specific versions are optimized for 230 V and 110 V mains supplies. The product family integrates full CFL controller functionality with high voltage half-bridge transistors. All products in the UBA2024 family are pin-to-pin compatible enabling a single application design covering a wide range of power ratings.
   
Features and benefits
■ The common feature set includes:
    ◆ high power efficiency
    ◆ a high integration level with low component counts enabling small form factor
        electronic ballast
    ◆ integrated bootstrap diode
    ◆ soft start function
    ◆ minimum glow time control
    ◆ integrated low-voltage supply
    ◆ adjustable operating frequency as a result of the embedded oscillator
    ◆ an accurate 50 % duty cycle provided by an embedded oscillator signal
    ◆ integrated half-bridge power transistors
    ◆ an internal drive function with a high-voltage level shifter up to 550 V
        (300 V for the UBA2024BP and UBA2024BT)
   
Applications
■ Driver for any kind of half-bridge configured load up to 23 W, provided that the
    maximum junction temperature is not exceeded
■ Designed for electronically self-ballasted CFL lamps