GENERAL DESCRIPTION
The UBA2024 is a high-voltage monolithic integrated circuit made in the EZ-HV SOI process. The IC is designed for driving CFL lamps 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
• Integrated bootstrap diode
• Integrated low-voltage supply
• Maximum voltage of 550 V
• Adjustable oscillator frequency
• Soft start
• Minimum glow time control.

APPLICATIONS
• Driver for any kind of load in a half-bridge configuration
• Especially for electronically self-ballasted Compact Fluorescent Lamps (CFL) for lamp currents up to 220 mA (RMS) under the restriction that the maximum junction temperature is not exceeded.