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TPS23754-1 Datasheet(PDF) 6 Page - Texas Instruments |
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TPS23754-1 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 45 page TPS23754, TPS23754-1, TPS23756 SLVS885H – OCTOBER 2008 – REVISED OCTOBER 2015 www.ti.com 6.5 Electrical Characteristics Unless otherwise noted: CS = COM = APD = CTL = RTN = ARTN, GATE and GAT2 float, RFRS= 68.1 kΩ, RBLNK= 249 kΩ, DT = VB, PPD = VSS, T2P open, CVB = CVC = 0.1 μF, RDEN = 24.9 kΩ, RCLS open, 0 V ≤ (VDD, VDD1) ≤ 57 V, 0 V ≤ VC ≤ 18 V, –40°C ≤ TJ ≤ 125°C. Typical specifications are at 25°C. CONTROLLER SECTION ONLY [VSS = RTN and VDD = VDD1] or [VSS = RTN = VDD], all voltages referred to [ARTN, COM] PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VC VC rising ‘754 14.3 15 15.7 VCUV VC rising ‘756 8.7 9 9.3 UVLO V Hysteresis ‘754 (1) 6.2 6.5 6.8 VCUVH Hysteresis ‘756 (1) 3.3 3.5 3.7 Operating current VC = 12 V, CTL = VB, RDT = 68.1 kΩ 0.7 0.92 1.2 mA TPS23756, VDD1 = 10.2 V, VC(0) = 0 V 50 85 175 TPS23756, VDD1 = 35 V, VC(0) = 0 V 27 45 92 Bootstrap start-up time, tST ms CVC = 22 μF TPS23754, VDD1 = 19.2 V, VC(0) = 0 V 49 81 166 TPS23754, VDD1 = 35 V, VC(0) = 0 V 44 75 158 TPS23754, VDD1 = 19.2 V, VC = 13.9 V 1.7 3.4 5.5 Start-up current source is IVC TPS23756, VDD1 = 10.2 V, VC = 8.6 V 0.44 1.06 1.8 mA TPS23754, TPS23756, VDD1 = 48 V, VC = 0 V 2.7 4.8 6.8 VB Voltage 6.5 V ≤ VC ≤ 18 V, 0 ≤ IVB ≤ 5 mA 4.8 5.1 5.25 V FRS CTL = VB, measure GATE Switching frequency kHz RFRS = 68.1 kΩ 227 253 278 DMAX Duty cycle CTL= VB, measure GATE 76% 78% 80% VSYNC Synchronization Input threshold 2 2.2 2.4 V CTL VZDC 0% duty cycle threshold VCTL ↓ until GATE stops 1.3 1.5 1.7 V Input resistance 70 100 145 k Ω CS VCSMAX Maximum threshold voltage VCTL = VB, VCS rising until GATE duty cycle drops 0.5 0.55 0.6 V Internal slope compensation VSLOPE Peak voltage at maximum duty cycle, referenced to CS 120 155 185 mV voltage Peak slope compensation ISL_EX VCTL = VB, ICS at maximum duty cycle 30 42 54 μA current Bias current (sourcing) DC component of ICS 1 2.5 4.3 μA GATE Source current VCTL = VB, VC = 12 V, GATE high, pulsed measurement 0.37 0.6 0.95 A Sink current VCTL = VB, VC = 12 V, GATE low, pulsed measurement 0.7 1 1.4 A GAT2 VCTL = VB, VC = 12 V, GAT2 high, RDT = 24.9 kΩ, pulsed Source current 0.37 0.6 0.95 A measurement VCTL = VB, VC = 12 V, GAT2 low, RDT = 24.9 kΩ, pulsed Sink current 0.7 1 1.4 A measurement (1) The hysteresis tolerance tracks the rising threshold for a given device. 6 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TPS23754 TPS23754-1 TPS23756 |
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