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TPS2421-2 Status: ACTIVE

3-20V Integrated FET 0-5A Hot Swap with Retry on Fault


      
         
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Datasheet

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Functional Block Diagram


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 TPS2420 TPS2421-1 TPS2421-2
Fault Current Range (IFLT)(A)0 - 5  0 - 5  0 - 5  
Vin(Min)(V)3  3  3  
Vin(Max)(V)20  20  20  
Rds(ON) FET(Typ)(mOhms)20  20  20  
Fault PinYes  Yes  Yes  
Power Good PinYes  Yes  Yes  
Latch offYes  Yes  No  
RetryYes  No  Yes  
Current MonitorYes  N/A  N/A  
Pin/Package16QFN  8SO PowerPAD  8SO PowerPAD  
Operating Temp Range(Celsius)-40 to 125  -40 to 125  -40 to 125  
Approx. Price (US$) 1.95 | 1ku   1.60 | 1ku   1.60 | 1ku  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS2421-1: 3-20V Integrated FET 0-5A Hot Swap with Latch off on Fault
  • TPS2420: 3-20V Integrated FET 0-5A Dual Fault Threshold Hot Swap with Load Current Monitoring
  • TPS2590: 3-V to 20-V High Current Load Switch
  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • TPS51116: DDR1, DDR2, DDR3 Switcher and LDO
  • TPS650250: Power Management IC for Li-Ion Powered Systems

Product Information

Features

  • Integrated Pass MOSFET
  • 3.3-V to 20-V Bus Operation
  • Programmable Fault Current
  • Current Limit Proportionally Larger than Fault Current
  • Programmable Fault Timer
  • Internal MOSFET Power Limiting
  • Latch-Off on Fault (–1) and Retry (–2) Versions
  • SO-8 PowerPad™ Package
  • –40°C to 125°C Junction Temperature Range
  • APPLICATIONS
    • RAID Arrays
    • Telecommunications
    • Plug-In Circuit Boards
    • Disk Drive

PowerPad Is a trademark of Texas Instruments.

Description

The TPS2421 provides highly integrated hot swap power management and superior protection in applications where the load is powered by voltages between 3.0 V and 20 V. These devices are very effective in systems where a voltage bus must be protected to prevent shorts from interrupting or damaging the unit. The TPS2421 is an easy to use devices in an 8-pin PowerPad™ SO-8 package.

The TPS2421 has multiple programmable protection features. Load protection is accomplished by a non-current limiting fault threshold, a hard current limit, and a fault timer. The current dual thresholds allow the system to draw short high current pulses, while the fault timer is running, without causing a voltage droop at the load. An example of this is a disk drive startup. This technique is ideal for loads that experience brief high demand, but benefit from protection levels in-line with their average current draw.

Hotswap MOSFET protection is provided by power limit circuitry which protects the internal MOSFET against SOA related failures.

The TPS2421 is available in latch-off on fault (–1) and retry on fault (–2).

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS2421-2DDAACTIVE-40 to 1251.60 | 1kuSO PowerPAD (DDA) | 8 View 75 | TUBEPurchase Samples
TPS2421-2DDARACTIVE-40 to 1251.60 | 1kuSO PowerPAD (DDA) | 8 View 2500 | LARGE 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 10:12 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksTPS2421-2DDA
EuropeArrow Northern Europe 75
Spoerle 150
WorldwideMouser Electronics 173
TI Lead Time*: 20 WeeksTPS2421-2DDAR
WorldwideDigiKey >1k
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
TPS2421-2DDA RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS2421-2DDAR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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 TPS2421-2 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPS2421-2 Hot Swap Controller Evaluation ModuleTPS2421-2EVM-03Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS2421-1 3-20V Integrated FET 0-5A Hot Swap with Latch off on Fault HOT SWAP POWER MANAGEMENT-HOT-SWAP SWITCHES (INTEGRATED FET) TI customers also evaluated this product.
TPS2420 3-20V Integrated FET 0-5A Dual Fault Threshold Hot Swap with Load Current Monitoring HOT SWAP POWER MANAGEMENT-HOT-SWAP SWITCHES (INTEGRATED FET) TI customers also evaluated this product.
TPS2590 3-V to 20-V High Current Load Switch HOT SWAP POWER MANAGEMENT-HOT-SWAP SWITCHES (INTEGRATED FET) TI customers also evaluated this product.
TPS54620 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS51116 DDR1, DDR2, DDR3 Switcher and LDO NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS650250 Power Management IC for Li-Ion Powered Systems POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER TI customers also evaluated this product.
TPS5430 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS 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.
TPS40131 Two-Phase Synchronous Buck Controller w/Integrated Mosfet Drivers NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS2041B Single-Channel Current-Limited Power Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS2065 Single 1A Current-Limited, Power-Distribution Switches for USB Applications PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS40060 Wide Input (10V-55V) up to 1 MHz Frequency Synchronous Buck Controller, source only NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS2052B Current-Limited, Power-Distribution Switches PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.

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