UBA2021

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 fluorescent 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 I Adjustable preheat and ignition time. I Adjustable preheat current. I Adjustable lamp power. I Lamp power independent from mains voltage variations. I Overpower protection. I Lamp temperature stress protection at higher mains voltages. I Capacitive mode protection. I Protection against a drive voltage that is too low for the power MOSFETs. 3. Quick reference data Table 1. Quick reference data Symbol Parameter High voltage supply VFS high side supply voltage Start-up state VVS(start) oscillator start voltage VVS(stop) oscillator stop voltage IVS(standby) standby current Preheat mode fstart start frequency tph preheat time VRS(ctrl) control voltage at pin RS Frequency sweep to ignition fB bottom frequency tign ignition time Normal operation fB bottom frequency tno non-overlap time Conditions IFS < 15 µA; t < 0.5 s VVS = 11 V CCP = 100 nF Min Typ Max Unit -- 630 V - 11.95 - 10.15 - 200 - V V µA - 108 - 666 - −600 - kHz ms mV - 42.9 - 625 - kHz ms - 42.9 - 1.4 - kHz µs NXP Semiconductors UBA2021 630 V driver IC for CFL and TL lamps Table 1. Quick...