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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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TPS259270 Fiches technique(PDF) 6 Page - Texas Instruments |
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TPS259270 Fiches technique(HTML) 6 Page - Texas Instruments |
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6 / 31 page  TPS259270, TPS259271 SLVSCU8A – AUGUST 2015 – REVISED AUGUST 2015 www.ti.com Electrical Characteristics (continued) –40°C ≤ TJ ≤ 125°C, VIN = 12 V, VEN /UVLO = 2 V, RILIM = 100 kΩ, CdVdT = OPEN. All voltages referenced to GND (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OUT (PASS FET OUTPUT) TJ = 25°C 21 28 37 RDS(on) FET ON resistance m Ω TJ = 125°C 39 48 IOUT-OFF-LKG VEN/UVLO = 0 V, VOUT = 0 V (Sourcing) –5 0 1.2 OUT Bias current in off state µA IOUT-OFF-SINK VEN/UVLO = 0 V, VOUT = 300 mV (Sinking) 10 15 20 BFET (BLOCKING FET GATE DRIVER) IBFET BFET Charging current(1) VBFET = VOUT 2 µA VVIN + VBFETmax BFET Clamp voltage(1) V 6.4 BFET Discharging resistance to RBFETdisch VEN/UVLO = 0 V, IBFET = 100 mA 15 26 36 Ω GND TSD (THERMAL SHUT DOWN) TSHDN TSD Threshold, rising(1) 150 °C TSHDNhyst TSD Hysteresis(1) 10 °C TPS259270 LATCHED Thermal fault: latched or autoretry TPS259271 AUTO-RETRY 7.6 Timing Requirements PARAMETER TEST CONDITIONS MIN TYP MAX UNIT EN/UVLO → H to IVIN = 100 mA, 1-A resistive load at TON Turn-on delay(1) 220 µs OUT tOFFdly Turn Off delay(1) EN ↓ to BFET↓, CBFET = 0 0.4 µs dV/dT (OUTPUT RAMP CONTROL) EN/UVLO → H to OUT = 11.7 V, CdVdT = 0 0.7 1 1.3 tdVdT Output ramp time ms EN/UVLO → H to OUT = 11.7 V, CdVdT = 1 nF (1) 12 ILIM (CURRENT LIMIT PROGRAMMING) tFastOffDly Fast-Trip comparator delay(1) IOUT > IFASTRIP to IOUT= 0 (Switch Off) 300 ns BFET (BLOCKING FET GATE DRIVER) EN/UVLO → H to VBFET = 12 V, CBFET = 1 nF 4.2 tBFET-ON BFET Turn-On duration(1) ms EN/UVLO → H to VBFET = 12 V, CBFET = 10 nF 42 EN/UVLO → L to VBFET = 1 V, CBFET = 1 nF 0.4 tBFET-OFF BFET Turn-off duration(1) µs EN/UVLO → L to VBFET = 1 V, CBFET = 10 nF 1.4 Thermal Shutdown (TSD) Retry delay after TSD recovery, tTSDdly TPS259271 only 100 µs TJ < [TSHDN - 10°C] (1) (1) These parameters are provided for reference only and do not constitute part of TI's published device specifications for purposes of TI's product warranty. 6 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: TPS259270 TPS259271 |
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