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TPS2552DRVT датащи(PDF) 1 Page - Texas Instruments |
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TPS2552DRVT датащи(HTML) 1 Page - Texas Instruments |
1 / 31 page 1 FEATURES DESCRIPTION APPLICATIONS 1 2 3 4 5 6 OUT FAULT ILIM EN GND IN PAD 1 2 3 4 5 6 OUT FAULT ILIM EN GND IN TPS2552/TPS2553 DBVPACKAGE (TOP VIEW) EN = ActiveLowfortheTPS2552 EN= ActiveHighfortheTPS2553 Add-1topartnumberforlach-offversion OUT IN GND FAULT ILIM EN R ILIM 20kW R FAULT 100kW ControlSignal 5VUSB Input USB Port USBData TPS2552/53 0.1 F m 120 F m Fault Signal PowerPad USBrequirementonly* * facingportsarebypassedwithatleast 120 Fperhub USBrequirementthatdownstream m TPS2552/TPS2553 DRVPACKAGE (TOP VIEW) TPS2552 TPS2553, TPS2552-1, TPS2553-1 www.ti.com...................................................................................................................................... SLVS841C – NOVEMBER 2008 – REVISED SEPTEMBER 2009 PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES 2 • Up to 1.5 A Maximum Load Current • ±6% Current-Limit Accuracy at 1.7 A (typ) The TPS2552/53 and TPS2552-1/53-1 power-distribution switches are intended for • Meets USB Current-Limiting Requirements applications where precision current limiting is • Backwards Compatible with TPS2550/51 required or heavy capacitive loads and short circuits • Adjustable Current Limit, 75 mA–1700 mA (typ) are encountered and provide up to 1.5 A of continuous load current. These devices offer a • Constant-Current (TPS2552/53) and Latch-off programmable current-limit threshold between 75 mA (TPS2552-1/53-1) Versions and 1.7 A (typ) via an external resistor. Current-limit • Fast Overcurrent Response - 2-µS (typ) accuracy as tight as ±6% can be achieved at the • 85-mΩ High-Side MOSFET (DBV Package) higher current-limit settings. The power-switch rise and fall times are controlled to minimize current • Reverse Input-Output Voltage Protection surges during turn on/off. • Operating Range: 2.5 V to 6.5 V TPS2552/53 devices limit the output current to a safe • Built-in Soft-Start level by using a constant-current mode when the • 15 kV ESD Protection per IEC 61000-4-2 (with output load exceeds the current-limit threshold. External Capacitance) TPS2552-1/53-1 devices provide circuit breaker functionality by latching off the power switch during • UL Listed – File No. E169910 overcurrent or reverse-voltage situations. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher • USB Ports/Hubs than the input to protect devices on the input side of • Digital TV the switch. The FAULT output asserts low during • Set-Top Boxes overcurrent and reverse-voltage conditions. • VOIP Phones Figure 1. Typical Application as USB Power Switch 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Аналогичный номер детали - TPS2552DRVT |
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Аналогичное описание - TPS2552DRVT |
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