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TPS2552DRVR-1 Fiches technique(PDF) 3 Page - Texas Instruments |
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TPS2552DRVR-1 Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 26 page RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS TPS2552 TPS2553, TPS2552-1, TPS2553-1 www.ti.com........................................................................................................................................ SLVS841A – NOVEMBER 2008 – REVISED DECEMBER 2008 MIN MAX UNIT VIN Input voltage, IN 2.5 6.5 V VEN TPS2552/52-1 0 6.5 Enable voltage V V/EN TPS2553/53-1 0 6.5 VIH High-level input voltage on EN or EN 1.1 V VIL Low-level input voltage on EN or EN 0.66 IOUT Continuous output current, OUT 0 1.2 A RILIM Current-limit threshold resistor range (nominal 1%) from ILIM to GND 19.1 232 k Ω IO Continuous FAULT sink current 0 10 mA Input de-coupling capacitance, IN to GND 0.1 µF Operating virtual junction TJ DRV and DBV –40 125 °C temperature over recommended operating junction temperature range, 2.5 V ≤ VIN ≤ 6.5 V, 19.1 kΩ ≤ RILIM ≤ 232 kΩ, V/EN = 0 V, or VEN = VIN, RFAULT = 10 kΩ (unless otherwise noted) PARAMETER TEST CONDITIONS(1) MIN TYP MAX UNIT POWER SWITCH DBV package, TJ = 25 °C 85 95 DBV package, –40 °C ≤TJ ≤125 °C 135 rDS(on) Static drain-source on-state resistance DRV package, TJ = 25 °C 100 115 m Ω DRV package, –40 °C ≤TJ ≤105 °C 140 DRV package, –40 °C ≤TJ ≤125 °C 150 VIN = 6.5 V 1.1 1.5 tr Rise time, output VIN = 2.5 V 0.7 1.0 CL = 1 µF, RL = 100 Ω, ms (see Figure 2) VIN = 6.5 V 0.2 0.5 tf Fall time, output 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, V/EN = 0 V or 6.5 V –0.5 0.5 µA ton Turnon time 3 ms CL = 1 µF, RL = 100 Ω, (see Figure 2) toff Turnoff time 3 ms CURRENT LIMIT TJ = 25 °C 1215 1295 1375 RILIM = 20 k Ω –40 °C ≤TJ ≤125 °C 1200 1295 1375 TJ = 25 °C 490 520 550 Current-limit threshold (Maximum DC output current IOUT delivered to load) & RILIM = IOS mA Short-circuit current, OUT connected to GND 49.9 k Ω –40 °C ≤TJ ≤125 °C 475 520 565 RILIM = 210 kΩ 110 130 150 ILIM shorted to IN 50 75 100 tIOS Response time to short circuit VIN = 5.0 V (see Figure 3) 2 µs REVERSE-VOLTAGE PROTECTION Reverse-voltage comparator trip point 95 135 190 mV (VOUT – VIN) Time from reverse-voltage condition VIN = 5.0 V 3 5 7 ms to MOSFET turn off (1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately. Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS2552 TPS2553 TPS2552-1 TPS2553-1 |
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