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TPS2556 Status: ACTIVE

Precision Adjustable Current-Limited Power-Distribution Switches


      
         
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Datasheet

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Functional Block Diagram


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 TPS2556TPS2557 
Vin(Min)(V)2.5  2.5  
Vin(Max)(V)6.5  6.5  
Current Limit(A)0.5 to 5.0  0.5 to 5.0  
Current Limit Accuracy @ 1A+/-7.0% (4100mA min / 4715mA max)  +/-7.0% (4100mA min / 4715mA max)  
rDS(on) per FET(Typ)(mOhms)22  22  
Pin/Package8SON  8SON  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  
Continuous Current(Max)(A)5  5  
Number of Switches1  1  
EnableActive Low  Active High  
RatingCatalog  Catalog  
Current Limit TopologyConstant-Current  Constant-Current  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS2552: Adjustable, Active Low, Constant-Current, Current-Limited Power-Distribution Switch
  • TPS2553: Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch
  • TPS2557: Precision Adjustable Current-Limited Power-Distribution Switches
  • TPS71750: Single Output LDO, 150mA, Fixed (5.0V), High PSRR, Low Quiescent Current, Low Noise
  • TPS54290: 4.5V to 18V Input, 1.5/2.5A, 300 kHz Dual Synchronous Step Down SWIFT™ Converter

More Related Products

Product Information

Features

  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 500 mA–5 A (typ)
  • +/- 6.5% Current-Limit Accuracy at 4.5 A
  • Fast Overcurrent Response - 3.5-µS (typ)
  • 22-m High-Side MOSFET
  • Operating Range: 2.5 V to 6.5 V
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • 15 kV / 8 kV System-Level ESD Capable
  • UL Listed* – File No. E169910
  • CB & Nemko Certification*
  • *RILIM ≥ 24.9 kΩ (5A maximum)
  • APPLICATIONS
    • USB Ports/Hubs
    • Digital TV
    • Set-Top Boxes
    • VOIP Phones

Description

The TPS2556/57 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 500 mA and 5.0 A (typ) via an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on/off.

TPS2556/57 devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and over temperature conditions.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS2556DRBRACTIVE-40 to 850.90 | 1kuSON (DRB) | 8 View 3000 | LARGE T&RPurchase Samples
TPS2556DRBTACTIVE-40 to 850.99 | 1kuSON (DRB) | 8 View 250 | SMALL T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 9:55 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 18 WeeksTPS2556DRBR
None Reported
View Distributors
TI Lead Time*: 16 WeeksTPS2556DRBT
None Reported
View Distributors
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPS2556DRBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS2556DRBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TPS2556 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPS2556DRBEVM-423: Evaluation Module for TPS2556TPS2556DRBEVM-423Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS2552 Adjustable, Active Low, Constant-Current, Current-Limited Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS2553 Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS2557 Precision Adjustable Current-Limited Power-Distribution Switches PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS2560 Dual Channel Precision Adjustable Current-Limited Power Switches PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS2550 Adjustable, Active Low, Constant-Current, Current-Limited Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS71750 Single Output LDO, 150mA, Fixed (5.0V), High PSRR, Low Quiescent Current, Low Noise LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS54290 4.5V to 18V Input, 1.5/2.5A, 300 kHz Dual Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.

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