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UBA2021 데이터시트(PDF) 1 Page - NXP Semiconductors |
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UBA2021 데이터시트(HTML) 1 Page - NXP Semiconductors |
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1 / 16 page ![]() 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 UBA2021 630 V driver IC for CFL and TL lamps Rev. 04 — 25 July 2008 Product data sheet Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit High voltage supply VFS high side supply voltage IFS <15 µA; t < 0.5 s - - 630 V Start-up state VVS(start) oscillator start voltage - 11.95 - V VVS(stop) oscillator stop voltage - 10.15 - V IVS(standby) standby current VVS = 11 V - 200 - µA Preheat mode fstart start frequency - 108 - kHz tph preheat time CCP = 100 nF - 666 - ms VRS(ctrl) control voltage at pin RS - −600 - mV Frequency sweep to ignition fB bottom frequency - 42.9 - kHz tign ignition time - 625 - ms Normal operation fB bottom frequency - 42.9 - kHz tno non-overlap time - 1.4 - µs |
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