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TPS23754 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS23754 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 45 page TPS23754, TPS23754-1, TPS23756 www.ti.com SLVS885H – OCTOBER 2008 – REVISED OCTOBER 2015 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT APD / PPD VAPDEN VAPD rising 1.43 1.5 1.57 APD threshold voltage V VAPDH Hysteresis (1) 0.29 0.31 0.33 VPPDEN VPPD- VVSS rising, UVLO disable 1.45 1.55 1.65 V VPPDH Hysteresis (1) 0.29 0.31 0.33 PPD threshold voltage VPPD2 VPPD- VVSS rising, Class enable 7.4 8.3 9.2 V VPPD2H Hysteresis (1) 0.5 0.6 0.7 APD leakage current VC = 12 V, VAPD = VB 1 μA (source or sink) IPPD PPD sink current VPPD-VSS = 1.5 V 2.5 5 7.5 μA THERMAL SHUTDOWN turnon temperature TJ rising 135 145 155 °C Hysteresis(2) 20 °C (2) These parameters are provided for reference only, and do not constitute part of TI's published specifications for purposes of TI's product warranty. 6.6 Electrical Characteristics: PoE and Control [VDD = VDD1] or [VDD1 = RTN], VC = RTN, COM = RTN = ARTN, all voltages referred to VSS unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DETECTION (DEN) (VDD = VDD1 = RTN = VSUPPLY positive) Measure ISUPPLY Detection current VDD = 1.6 V 62 64.3 66.5 μA VDD = 10 V 399 406 414 VDD = 10 V, float DEN, measure ISUPPLY, Detection bias current 5.6 10 μA Note: Not during Mark state VPD_DIS Hotswap disable threshold 3 4 5 V DEN leakage current VDEN = VDD = 57 V, float VDD1 and RTN, measure IDEN 0.1 5 μA CLASSIFICATION (CLS) (VDD = VDD1 = RTN = VSUPPLY positive) 13 V ≤ VDD ≤ 21 V, Measure ISUPPLY RCLS = 1270 Ω 1.8 2.1 2.4 RCLS = 243 Ω 9.9 10.4 10.9 Classification current, ICLS mA applies to both cycles RCLS = 137 Ω 17.6 18.5 19.4 RCLS = 90.9 Ω 26.5 27.7 29.3 RCLS = 63.4 Ω 38 39.7 42 Classification mark resistance 5.6 V ≤ VDD ≤ 9.4 V 7.5 9.7 12 k Ω VCL_ON Regulator turns on, VDD rising 11.2 11.9 12.6 Classification regulator lower V threshold VCL_H Hysteresis(1) 1.55 1.65 1.75 VCU_OFF Regulator turns off, VDD rising 21 22 23 Classification regulator upper V threshold VCU_H Hysteresis(1) 0.5 0.75 1 VMSR Mark state reset VDD falling 3 4 5 V Leakage current VDD = 57 V, VCLS = 0 V, DEN = VSS, measure ICLS 1 μA PASS DEVICE (RTN) (VDD1 = RTN) On resistance 0.25 0.43 0.75 Ω Current limit VRTN = 1.5 V, VDD = 48 V, pulsed measurement 850 970 1100 mA Inrush limit VRTN = 2 V, VDD: 0 V → 48 V, pulsed measurement 100 140 180 mA Foldback voltage threshold VDD rising 11 12.3 13.6 V (1) The hysteresis tolerance tracks the rising threshold for a given device. Copyright © 2008–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: TPS23754 TPS23754-1 TPS23756 |
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