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TPS2557DRBT датащи(PDF) 3 Page - Texas Instruments |
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TPS2557DRBT датащи(HTML) 3 Page - Texas Instruments |
3 / 23 page TPS2556 TPS2557 www.ti.com SLVS931A – NOVEMBER 2009 – REVISED FEBRUARY 2012 RECOMMENDED OPERATING CONDITIONS MIN MAX UNIT VIN Input voltage, IN 2.5 6.5 V VEN TPS2556 0 6.5 Enable voltage V VEN TPS2557 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 5 A Continuous FAULT sink current 0 10 mA TJ Operating virtual junction temperature –40 125 °C RILIM Recommended resistor limit range 20k 187k Ω ELECTRICAL CHARACTERISTICS over recommended operating conditions, V/EN = 0 V, or VEN = VIN (unless otherwise noted) PARAMETER TEST CONDITIONS(1) MIN TYP MAX UNIT POWER SWITCH TJ = 25°C 22 25 Static drain-source on-state rDS(on) m Ω resistance –40 °C ≤TJ ≤ 125°C 35 VIN = 6.5 V 2 3 4 tr Rise time, output VIN = 2.5 V 1 2 3 CL = 1 μF, RL = 100 Ω, ms (see Figure 2) VIN = 6.5 V 0.6 0.8 1.0 tf Fall time, output VIN = 2.5 V 0.4 0.6 0.8 ENABLE INPUT EN OR EN Enable pin turn on/off threshold 0.66 1.1 V Hysteresis 55(2) mV IEN Input current VEN = 0 V or 6.5 V, V/EN = 0 V or 6.5 V –0.5 0.5 μA ton Turn-on time 9 ms CL = 1 μF, RL = 100 Ω, (see Figure 2) toff Turn-off time 6 ms CURRENT LIMIT RILIM = 24.9 kΩ 4130 4450 4695 Current-limit threshold (Maximum DC output current IOUT delivered to IOS RILIM = 61.9 kΩ 1590 1785 1960 mA load) & Short-circuit current, OUT connected to GND RILIM = 100 kΩ 935 1100 1260 tIOS Response time to short circuit VIN = 5.0 V (see Figure 3) 3.5(2) μs (1) Pulse-testing techniques maintain junction temperature close to ambient temperature; thermal effects must be taken into account separately. (2) These parameters are provided for reference only, and do no constitute part of TI 's published specifications for purposes of TI's product warranty. Copyright © 2009–2012, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TPS2556 TPS2557 |
Аналогичный номер детали - TPS2557DRBT |
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Аналогичное описание - TPS2557DRBT |
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