UBA2025 CFL power IC Rev. 01 16 October 2009 Product data sheet 1. General description The UBA2025 is a high voltage power IC intended to drive and control a Compact Fluorescent Lamp (CFL). It contains a half bridge power circuit, an oscillator, and a control circuit for starting up, preheating, ignition, lamp burning, and protection. 2. Features n Two internal 600 V, 3 max NMOST half bridge powers n For steady state half bridge currents up to 280 mA n For ignition half bridge currents up to 1.5 A n Adjustable preheat and ignition time n Adjustable preheat current n Adjustable lamp power n Lamp temperature stress protection at higher mains voltages n Capacitive mode protection n Protection against too low a drive voltage for the power MOSFETs. 3. Applications n 5 W to 25 W CFLs provided that the maximum junction temperature is not exceeded. 4. Ordering information Table 1. Ordering information Type number Package Name Description Version UBA2025T SO16L plastic small outline package 16 leads body width 7.5 mm SOT162-1UBA2025 NXP Semiconductors CFL power IC 5. Block diagram VS RHV IREF CF CI FS 614 11 1315 5 BOOTSTRAP T1 16 VDC SUPPLY HS LEVEL OSCILLATOR DRIVER SHIFTER 4 S1A BANDGAP REFERENCE T2 3 S1B 1 PGND 9 NON LS CPAV TIMING 2 OVERLAP GLI DRIVER 7 GLO SHUNT 10 RS CURRENT CONTROL UBA2025 MONITOR 12 8 014aaa936 SGND GND Fig 1. Block diagram UBA2025 1 NXP B.V. 2009. All rights reserved. Product data sheet Rev. 01 16 October 2009 2 of 17