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TPS2553-Q1 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS2553-Q1 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 32 page  5 TPS2553-Q1 www.ti.com SLVSBD0A – NOVEMBER 2012 – REVISED MARCH 2016 Product Folder Links: TPS2553-Q1 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.4 Thermal Information THERMAL METRIC(1) TPS2553-Q1 UNIT DBV (SOT-23) 6 PINS RθJA Junction-to-ambient thermal resistance 182.6 °C/W RθJC(top) Junction-to-case (top) thermal resistance 122.2 °C/W RθJB Junction-to-board thermal resistance 29.4 °C/W ψJT Junction-to-top characterization parameter 20.8 °C/W ψJB Junction-to-board characterization parameter 28.9 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance n/a °C/W (1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately. 6.5 Electrical Characteristics over recommended operating conditions, VEN = VIN, RFAULT = 10 kΩ (unless otherwise noted) PARAMETER TEST CONDITIONS(1) MIN TYP MAX UNIT POWER SWITCH rDS(on) Static drain-source on-state resistance DBV package, TA = 25°C 85 95 m Ω DBV package, –40°C ≤TA ≤125°C 135 tr Rise time, output VIN = 6.5 V CL = 1 μF, RL = 100 Ω, (see Figure 19) 1.1 1.5 ms VIN = 2.5 V 0.7 1 tf Fall time, output VIN = 6.5 V 0.2 0.5 VIN = 2.5 V 0.2 0.5 ENABLE INPUT EN OR EN Enable pin turn on/off threshold 0.66 1.1 V IEN Input current VEN = 0 V or 6.5 V, VEN = 0 V or 6.5 V –0.5 0.5 μA ton Turnon time CL = 1 μF, RL = 100 Ω, (see Figure 19) 3 ms toff Turnoff time 3 ms CURRENT-LIMIT IOS Current-limit threshold (Maximum DC output current IOUT delivered to load) and Short-circuit current, OUT connected to GND RILIM = 15 kΩ –40°C ≤TA ≤105°C 1610 1700 1800 mA RILIM = 20 kΩ TA = 25°C 1215 1295 1375 –40°C ≤TA ≤125°C 1200 1295 1375 RILIM = 49.9 kΩ TA = 25°C 490 520 550 –40°C ≤TA ≤125°C 475 520 565 RILIM = 210 kΩ 100 130 150 ILIM shorted to IN 50 75 100 tIOS Response time to short circuit VIN = 5 V (see Figure 20) 2 μs REVERSE-VOLTAGE PROTECTION Reverse-voltage comparator trip point (VOUT – VIN) 95 135 190 mV Time from reverse-voltage condition to MOSFET turn off VIN = 5 V 3 5 7 ms |
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