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TPS2553DBVT датащи(PDF) 1 Page - Texas Instruments |
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TPS2553DBVT датащи(HTML) 1 Page - Texas Instruments |
1 / 26 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 TIPS2552/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 m USBrequirementthatdownstream TIPS2552/TPS2553 DRVPACKAGE (TOP VIEW) TPS2552 TPS2553, TPS2552-1, TPS2553-1 www.ti.com........................................................................................................................................ SLVS841A – NOVEMBER 2008 – REVISED DECEMBER 2008 PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES 2 • ±6% Current-Limit Accuracy at 1.3 A • Meets USB Current-Limiting Requirements The TPS2552/53 and TPS2552-1/53-1 power-distribution switches are intended for • Backwards Compatible with TPS2550/51 applications where precision current limiting is • Adjustable Current Limit, 75 mA–1300 mA (typ) required or heavy capacitive loads and short circuits • Constant-Current (TPS2552/53) and Latch-off are encountered. These devices offer a (TPS2552-1/53-1) Versions programmable current-limit threshold between 75 mA and 1.3 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 • Reverse Input-Output Voltage Protection and fall times are controlled to minimize current surges during turn on/off. • Operating Range: 2.5 V to 6.5 V • 1-µA Maximum Standby Supply Current TPS2552/53 devices limit the output current to a safe level by switching into a constant-current mode when • Built-in Soft-Start the output load exceeds the current-limit threshold. • 15 kV ESD Protection per IEC 61000-4-2 (with TPS2552-1/53-1 devices provide circuit breaker External Capacitance) functionality by latching off the power switch during overcurrent or reverse-voltage situations. An internal reverse-voltage detection comparator disables the power-switch in the event that the output voltage is • USB Ports/Hubs driven higher than the input to protect devices on the • Digital TV input side of the switch. The FAULT logic output • Set-Top Boxes asserts low during overcurrent and reverse-voltage • Mobile Phones 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, 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 - TPS2553DBVT |
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Аналогичное описание - TPS2553DBVT |
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