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TPS2420 Status: ACTIVE

3-20V Integrated FET 0-5A Dual Fault Threshold Hot Swap with Load Current Monitoring


      
         
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 TPS2420TPS2421-1 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
  • TPS2590: 3-V to 20-V High Current Load Switch
  • UCC28C43: BiCMOS Low-Power Current Mode PWM Controller
  • TPS62200: Adjustable, 300-mA, 95% Efficient Step-Down Converter in SOT-23
  • TPS2065: Single 1A Current-Limited, Power-Distribution Switches for USB Applications

Product Information

Features

  • Integrated 30-m Pass MOSFET
  • 3.0-V to 20-V Bus Operation
  • Programmable Fault Current
  • Programmable Hard Current Limit
  • Programmable Fault Timer
  • Internal MOSFET Power Limiting Foldback
  • Latching and Auto-Retry Operation
  • Analog Current Monitor Output
  • Powergood Output
  • Fault Output Indicator
  • 4 mm × 4 mm QFN
  • -40°C to 125°C Junction Temperature Range
  • APPLICATIONS
    • RAID Arrays
    • Telecommunications
    • Plug-In Circuit Boards
    • Disk Drives

PowerPad is a trademark of Texas Instruments.

Description

The TPS2420 provides highly integrated load protection for 3-V to 20-V applications. The TPS2420 protects loads, minimizes inrush current, and safely shuts down in the event of a fault. The programmable fault current threshold starts the fault timer while allowing the current to pass to the load uninhibited. The programmable current limit threshold sets the maximum current allowed into the load, for both inrush and severe load faults. Both events use the programmable timer which inhibits all current to the load when it expires.

The dual protection thresholds are useful in applications such as disk drives. The start-up and seek currents are typically higher than the nominal current and during this time the load needs a low impedance path to deliver the power. If a failure at the load occurs, the current limit does not allow the current to exceed the programmed threshold. This protects both the load and the integrity of the power supply. The internal MOSFET is protected by power limit circuitry which ensures that the MOSFET remains within its safe operating area (SOA) during all operating states.

The TPS2420 also allows the system to monitor load currents with no need for a shunt in the power path. The gain of the current monitor can be scaled to the application. Fault and power good outputs are provided for improved system management and sequencing control.

This device can be programmed to either latch-off or retry in the event of a fault. All of this functionality is packed into a 16-pin 4 × 4 mm QFN package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS2420RSARACTIVE-40 to 1251.95 | 1kuQFN (RSA) | 16 View 3000 | LARGE T&R
TPS2420RSATACTIVE-40 to 1252.10 | 1kuQFN (RSA) | 16 View 250 | SMALL T&RPurchase Samples

* 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 10:07 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS2420RSAR
WorldwideDigiKey 218
TI Lead Time*: 4 WeeksTPS2420RSAT
AmericasAvnet 250
AsiaFarnell Asia 218
EuropeAvnet-SILICA 250
Farnell 218
WorldwideDigiKey 131
Mouser Electronics 222
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
TPS2420RSAR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS2420RSAT 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 TPS2420 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPS2420 Hot Swap Controller Evaluation ModuleTPS2420EVM-01Texas InstrumentsDevelopment Boards/EVMs

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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.
UCC28C43 BiCMOS Low-Power Current Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
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TPS2065 Single 1A Current-Limited, Power-Distribution Switches for USB Applications PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
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TPS65150 5V/2A(I/O), 4-CH Multi-Converter w/ VCOM Op-Amp & GPM for LCD Bias, 24 QFN/TSSOP LIGHTING AND DISPLAY SOLUTIONS-LCD/OLED DISPLAY BIAS SOLUTIONS TI customers also evaluated this product.
UC2846 Current Mode PWM Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
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