
Philips Electronics
General description
The UBA2024P is a high-voltage monolithic integrated circuit. The Integrated Circuit (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
■ Integrated bootstrap diode
■ Integrated low-voltage supply
■ Adjustable oscillator frequency
■ Maximum voltage of 550 V
■ Minimum glow time control
■ Soft start
APPLICATIONs
■ Driver for any kind of load in a half-bridge configuration
■ Especially for electronically self-ballasted CFL for lamp currents up to 220 mA (RMS) under the restriction that the maximum junction temperature is not exceeded