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TPS254900IRVCRQ1 Fiches technique(PDF) 6 Page - Texas Instruments |
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TPS254900IRVCRQ1 Fiches technique(HTML) 6 Page - Texas Instruments |
6 / 40 page 6 TPS254900-Q1 SLUSCO9A – SEPTEMBER 2016 – REVISED OCTOBER 2016 www.ti.com Product Folder Links: TPS254900-Q1 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Electrical Characteristics (continued) Unless otherwise noted, –40°C ≤ TJ ≤ 125°C and 4.5 V ≤ V(IN) ≤ 6.5 V, V(EN) = V(CTL1) = V(CTL2) = V(IN), R(FAULT) = R(STATUS) = 10 kΩ, R(IMON) = 2.55 kΩ, R(ILIM_HI) = 19.1 kΩ, R(ILIM_LO) = 80.6 kΩ. Positive currents are into pins. Typical values are at 25°C. All voltages are with respect to GND. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT (3) This parameter is provided for reference only and does not constitute part of TI's published device specifications for purposes of TI's product warranty. UNDERVOLTAGE LOCKOUT, IN V(UVLO) UVLO threshold voltage IN rising 3.9 4.15 4.3 V Hysteresis(3) TJ = 25°C 100 mV FAULT Output low voltage I(FAULT) = 1 mA 100 mV Off-state leakage V(FAULT) = 6.5 V 2 µA STATUS Output low voltage I(STATUS) = 1 mA 100 mV Off-state leakage V(STATUS) = 6.5 V 2 µA THERMAL SHUTDOWN T(OTSD2) Thermal shutdown threshold 155 °C T(OTSD1) Thermal shutdown threshold in current-limit 135 °C Hysteresis(3) 20 °C LOAD DETECT (VCTL1 = VCTL2 = VIN) I(LD) IOUT load detection threshold R(ILIM_LO) = 80.6 kΩ, rising load current 585 650 715 mA Hysteresis(3) 50 mA DM_IN AND DP_IN OVERVOLTAGE PROTECTION V(OV_Data) Protection trip threshold DP_IN and DM_IN rising 3.7 3.9 4.15 V Hysteresis(3) 100 mV R(DCHG_Data) Discharge resistor after OVP(2) DP_IN = DM_IN = 18 V, IN = 5 V or 0 V 200 k Ω DP_IN = DM_IN = 5 V, IN = 5 V 370 DP_IN = DM_IN = 5 V, IN = 0 390 OUT OVERVOLTAGE PROTECTION V(OV_OUT_LOW) Protection trip threshold OUT rising 5.65 6 6.35 V Hysteresis(3) 90 mV V(OV_OUT_HIGH) Protection trip threshold OUT rising 6.6 6.95 7.3 V Hysteresis(3) 130 mV R(DCHG_OUT) Discharge resistor OUT = 18 V, IN = 5 V 55 85 k Ω OUT = 18 V, IN = 0 80 120 CABLE COMPENSATION I(CS) Sink current Load = 3 A, 2.5 V ≤ V(CS) ≤ 6.5 V 234 246 258 µA Load = 2.4 A, 2.5 V ≤ V(CS) ≤ 6.5 V 187 197 207 Load = 2.1 A, 2.5 V ≤ V(CS) ≤ 6.5 V 163 172 181 Load = 1 A, 2.5 V ≤ V(CS) ≤ 6.5 V 77 82 87 CURRENT MONITOR OUTPUT (IMON) I(IMON) Source current Load = 3 A, 0 ≤ V(IMON) ≤ 2.5 V 287 312 337 µA Load = 2.4 A, 0 ≤ V(IMON) ≤ 2.5 V 230 250 270 Load = 2.1 A, 0 ≤ V(IMON) ≤ 2.5 V 201 218 235 Load = 1 A, 0 ≤ V(IMON) ≤ 2.5 V 94 104 114 Load = 0.5 A, 0 ≤ V(IMON) ≤ 2.5 V 44 52 60 |
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