General description

The UBA2024 is a high-voltage monolithic Integrated Circuit (IC). The IC is designed for driving Compact Fluorescent Lamps (CFL) in a half-bridge configuration.

The IC features a soft start function, an adjustable internal oscillator and an internal drive function with a high-voltage level shifter for driving the half-bridge.

To guarantee an accurate 50 % duty cycle, the oscillator signal is passed through a divider before being fed to the output drivers.

Features
■ Integrated half-bridge power transistors
    ◆ UBA2024P: 9 Ω
    ◆ UBA2024AP: 6 Ω
    ◆ UBA2024T: 9 Ω
    ◆ UBA2024AT: 6.4 Ω
■ Integrated bootstrap diode
■ Integrated low-voltage supply
■ Adjustable oscillator frequency
■ 550 V maximum voltage
■ Minimum glow time control
■ Soft start
   
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