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SSL4101T 数据表(PDF) 21 Page - NXP Semiconductors |
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SSL4101T 数据表(HTML) 21 Page - NXP Semiconductors |
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21 / 29 page  SSL4101T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved. Product data sheet Rev. 1 — 21 April 2011 21 of 29 NXP Semiconductors SSL4101T GreenChip III+ SMPS control IC Valley switching PFC (pin PFCAUX) ( ΔV/Δt) vrec(PFC) PFC valley recognition voltage change with time --1.7 V/ μs tvrec(PFC) PFC valley recognition time VPFCAUX = 1 V peak-to-peak [2] --300 ns demagnetization to ΔV/Δt = 0 [3] --50 ns tto(vrec)PFC PFC valley recognition time-out time 346 μs Demagnetization management PFC (pin PFCAUX) Vth(comp)PFCAUX comparator threshold voltage on pin PFCAUX −150 −100 −50 mV tto(demag)PFC PFC demagnetization time-out time 40 50 60 μs Iprot(PFCAUX) protection current on pin PFCAUX VPFCAUX = 50 mV −75 - −5nA Driver (pin PFCDRIVER) Isrc(PFCDRIVER) source current on pin PFCDRIVER VPFCDRIVER = 2 V - −0.5 - A Isink(PFCDRIVER) sink current on pin PFCDRIVER VPFCDRIVER = 2 V - 0.7 - A VPFCDRIVER = 10 V - 1.2 - A VO(PFCDRIVER)max maximum output voltage on pin PFCDRIVER -11 12 V Overvoltage protection flyback (pin FBAUX) Iovp(FBAUX) overvoltage protection current on pin FBAUX 279 300 321 μA Ncy(ovp) number of overvoltage protection cycles 6812 Demagnetization management flyback (pin FBAUX) Vth(comp)FBAUX comparator threshold voltage on pin FBAUX 60 80 110 mV Iprot(FBAUX) protection current on pin FBAUX VFBAUX =50mV −50 - −5nA Vclamp(FBAUX) clamp voltage on pin FBAUX IFBAUX = −500 μA −1.0 −0.8 −0.6 V IFBAUX =500 μA 0.5 0.7 0.9 V tsup(xfmr_ring) transformer ringing suppression time 1.5 2 2.5 μs Pulse width modulator flyback ton(fb)min minimum flyback on-time - tleb -ns ton(fb)max maximum flyback on-time 32 40 48 μs Table 5. Characteristics …continued Tamb =25 °C; VCC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into the IC; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit |
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