UBA2024

INTEGRATED CIRCUITS DATA SHEET UBA2024 Half-bridge power IC for CFL lamps Product specification Supersedes data of 2003 Aug 13 2004 Feb 03 Philips Semiconductors Product specification Half-bridge power IC for CFL lamps 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. ORDERING INFORMATION TYPE NUMBER UBA2024P BLOCK DIAGRAM PACKAGE NAME DIP8 DESCRIPTION plastic dual in-line package; 8 leads (300 mil) GENERAL DESCRIPTION UBA2024 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. VERSION SOT97-1 6 UBA2024 VDD CONTROL VDD SW 7 HS 1 SWEEP AND GLOW TIME CONTROL VDD(stop) HIGH VOLTAGE LEVEL SHIFTER HIGH SIDE DRIVER 5 RC 8 OSCILLATOR DIVIDE-BY-2 DE...