UBA2025

www.DataSheet.co.kr 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 I I I I I I I I I Two internal 600 V, 3 Ω max NMOST half bridge powers For steady state half bridge currents up to 280 mA For ignition half bridge currents up to 1.5 A Adjustable preheat and ignition time Adjustable preheat current Adjustable lamp power Lamp temperature stress protection at higher mains voltages Capacitive mode protection Protection against too low a drive voltage for the power MOSFETs. 3. Applications I 5 W to 25 W CFLs provided that the maximum junction temperature is not exceeded. 4. Ordering information Table 1. Ordering information Package Name UBA2025T SO16L Description plastic small outline package; 16 leads; body width 7.5 mm Version SOT162-1 Type number Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr NXP Semiconductors UBA2025 CFL power IC 5. Block diagram VS 6 RHV 14 IREF CF 11 13 CI 15 FS 5 BOOTSTRAP T1 16 4 SUPPLY OSCILLATOR LEVEL SHIFTER HS DRIVER VDC S1A BANDGAP REFERENCE T2 3 1 S1B PGND GLI GLO CPAV 9 TIMING NON OVERLAP LS DRIVER 2 7 RS 10 SHUNT CURRENT MONITOR CONTROL UBA2025 12 SGND 8 GND 014aaa936 Fig 1. Block diagram UBA2025_...