UBA2021 630 V driver IC for CFL and TL lamps Rev. 04 25 July 2008 Product data sheet 1. General description The UBA2021 is a high voltage IC intended to drive and control Compact Fluorescent Lamps (CFL) or uorescent TL lamps. It contains a driver circuit for an external half-bridge, an oscillator and a control circuit for starting up, preheating, ignition, lamp burning and protection. 2. Features n Adjustable preheat and ignition time. n Adjustable preheat current. n Adjustable lamp power. n Lamp power independent from mains voltage variations. n Overpower protection. n Lamp temperature stress protection at higher mains voltages. n Capacitive mode protection. n Protection against a drive voltage that is too low for the power MOSFETs. 3. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit High voltage supply V high side supply voltage I <15 A t < 0.5 s - - 630 V FS FS Start-up state V oscillator start voltage - 11.95 - V VS(start) V oscillator stop voltage - 10.15 - V VS(stop) I standby current V = 11 V - 200 - A VS(standby) VS Preheat mode f start frequency - 108 - kHz start t preheat time C = 100 nF - 666 - ms ph CP V control voltage at pin RS - - 600 - mV RS(ctrl) Frequency sweep to ignition f bottom frequency - 42.9 - kHz B t ignition time - 625 - ms ign Normal operation f bottom frequency - 42.9 - kHz B t non-overlap time - 1.4 - s noUBA2021 NXP Semiconductors 630 V driver IC for CFL and TL lamps Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit I total supply current f = 43 kHz - 1 - mA tot B R , high and low side on - 126 - G1(on) R resistance G2(on) R , high and low side off -75 - G1(off) R resistance G2(off) Feed-forward f feed-forward frequency I = 0.75 mA - 63.6 - kHz ff RHV I = 1.0 mA - 84.5 - kHz RHV I operating range of input 0 - 1000 A i(RHV) current at pin RHV 4. Ordering information Table 2. Ordering information Type number Package Name Description Version UBA2021T SO14 plastic small outline package 14 leads body width 3.9 mm SOT108-1 UBA2021P DIP14 plastic dual in-line package 14 leads (300 mil) SOT27-1 5. Block diagram VS RHV RREF CF CI 5 13 10 12 14 bootstrap charging circuit SB SUPPLY 1 FS 4 OSCILLATOR 2 n.c. LEVEL HIGH SIDE G1 SHIFTER DRIVER 3 S1 BAND GAP REFERENCE 8 NON CP TIMING 6 OVERLAP LOW SIDE G2 DRIVER 9 RS 7 RS CONTROL PGND MONITOR UBA2021 11 mgs988 SGND Fig 1. Block diagram UBA2021 4 NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 25 July 2008 2 of 16