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TEA1742T 数据表(PDF) 11 Page - NXP Semiconductors |
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TEA1742T 数据表(HTML) 11 Page - NXP Semiconductors |
11 / 17 page TEA1742T_1 © NXP B.V. 2009. All rights reserved. Objective data sheet Rev. 01 — 10 February 2009 11 of 17 NXP Semiconductors TEA1742T GreenChip PFC controller Ipu(VINSENSE) pull-up current on pin VINSENSE active after Vstop(VINSENSE) is detected −55 −47 −40 µA Vmvc(VINSENSE)max maximum mains voltage compensation voltage on pin VINSENSE 4.0 - - V II(VINSENSE) input current on pin VINSENSE VINSENSE > Vstop(VINSENSE) after Vstart(VINSENSE) is detected 5 33 100 nA Vbst(dual) dual boost voltage current switch-over point - 2.2 - V switch-over region - 200 - mV Loop compensation PFC (pin PFCCOMP) gm transconductance VVOSENSE to IO(PFCCOMP) 60 80 100 µA/V IO(PFCCOMP) output current on pin PFCCOMP VVOSENSE = 2.0V 33 39 45 µA VVOSENSE = 3.3V −45 −39 −33 µA Vclamp(PFCCOMP) clamp voltage on pin PFCCOMP Low power mode, PFC off, lower clamp voltage [1] 2.5 2.7 2.9 V Upper clamp voltage [1] - 3.9 - V Vton(PFCCOMP)zero zero on-time voltage on pin PFCCOMP 3.4 3.5 3.6 V Vton(PFCCOMP)max maximum on-time voltage on pin PFCCOMP 1.20 1.25 1.30 V Pulse width modulator PFC ton(PFC) PFC on-time VVINSENSE = 3.3 V, VPFCCOMP = Vton(PFCCOMP)max 3.6 4.5 5.0 µs VVINSENSE = 0.9 V, VPFCCOMP = Vton(PFCCOMP)max 30 40 53 µs Output voltage sensing PFC (pin VOSENSE) Vth(ol)(VOSENSE) open-loop threshold voltage on pin VOSENSE - 1.15 - V Vreg(VOSENSE) regulation voltage on pin VOSENSE for IO(PFCCOMP) = 0 2.475 2.500 2.525 V Vovp(VOSENSE) overvoltage protection voltage on pin VOSENSE 2.60 2.63 2.67 V Ibst(dual) dual boost current VVINSENSE <Vbst(dual) or VVOSENSE < 2.1 V --8 - µA VVINSENSE > Vbst(dual) - -30 - nA Overcurrent protection PFC (pin PFCSENSE) Vsense(PFC)max maximum PFC sense voltage ∆V/∆t = 50 mV/µs 0.49 0.52 0.55 V ∆V/∆t = 200 mV/µs 0.51 0.54 0.57 V tleb(PFC) PFC leading edge blanking time 250 310 370 ns Iprot(PFCSENSE) protection current on pin PFCSENSE −50 - −5nA 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 |
类似零件编号 - TEA1742T |
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类似说明 - TEA1742T |
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