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UBA2021T Datasheet(PDF) 10 Page - NXP Semiconductors |
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UBA2021T Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 20 page 2001 Jan 30 10 Philips Semiconductors Product specification 630 V driver IC for CFL and TL lamps UBA2021 Notes 1. The start-up supply current is specified in a temperature (Tvj) range of 0 to 125 °C. For Tvj <0 and Tvj >125 °C the start-up supply current is <350 µA. 2. The clamp margin is defined as the voltage difference between turn-on of the clamp and start of oscillation. The clamp is in the off-state at start of oscillation. 3. Data sampling of VRS(ctrl) is performed at the end of conduction of T2. 4. The total supply current is specified in a temperature (Tvj) range of −20 to +125 °C. For Tvj < −20 and Tvj >125 °C the total supply current is <1.5 mA. 5. Data sampling of VRS(cap) is performed at the start of conduction of T2. 6. Within the allowed range of RRREF, defined as 30 kΩ +10%. 7. Typical values for the on and off resistances at Tvj = 87.5 °C are: RG2(on) and RG1(on) = 164 Ω, RG2(off) and RG1(off) = 100 Ω. 8. The input current at pin RHV may increase to 1600 µA during voltage transient at Vin. Only for currents IRHV beyond approximately 550 µA is the oscillator frequency proportional to IRHV. 9. The symmetry SYMff is calculated from the quotient SYMff =T1tot/T2tot, with T1tot the time between turn-off of G2 and turn-off of G1, and T2tot the time between turn-off of G1 and turn-off of G2. RG1(off) high side driver off resistance V(G1 − S1) = 3 V; note 7 60 75 90 Ω RG2(on) low side driver on resistance VG2 = 3 V; note 7 100 126 152 Ω RG2(off) low side driver off resistance VG2 = 3 V; note 7 60 75 90 Ω Vdrop voltage drop at bootstrap switch IFS = 5 mA 0.6 1.0 1.4 V Feed-forward Ri(RHV) input resistance at pin RHV 1.54 2.2 2.86 k Ω Ii(RHV) operating range of input current at pin RHV note 8 0 − 1000 µA fff feed-forward frequency IRHV = 0.75 mA 60.4 63.6 66.15 kHz IRHV = 1 mA 80.3 84.5 88.2 kHz SYMff symmetry IRHV = 1 mA; note 9 0.9 1.0 1.1 RR ripple rejection fVin = 100 Hz − 6 − dB RCP(sw) CP switch series resistance ICP = 100 µA 0.75 1.5 2.25 k Ω RAV averaging resistor ICP =10 µA 22.4 32 41.6 k Ω SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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