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TPS22945 Status: ACTIVE

Low-Input Voltage Current Limited Load Switch with Shut-Off and Auto-Restart Features


      
         
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 TPS22941 TPS22942 TPS22943 TPS22944 TPS22945TPS22946 TPS22949 TPS22949A 
Adjustable Current Limit(Min)(A)0.04  0.1  0.04  0.1  0.1  0.155 ,0.07 ,0.03  0.1  0.1  
rDS(on) per FET(Typ)(mOhms)400  400  400  400  400  300  300  300  
Number of FETs1  1  1  1  1  1  2  2  
Enable/ShutdownActive Low  Active Low  Active High  Active High  Active High  Active High  Active High  Active High  
Vin(Min)(V)1.62  1.62  1.62  1.62  1.62  1.62  1.62  1.62  
Vin(Max)(V)5.5  5.5  5.5  5.5  5.5  5.5  4.5  4.5  
Iq(Typ)(uA)40  40  40  40  40  1  85  85  
Pin/Package5SC70  5SC70  5SC70  5SC70  5SC70  6DSBGA  8DSBGA  8DSBGA, 8SON  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Product Information

Features

  • Input Voltage Range: 1.62 V to 5.5 V
  • Low ON resistance
    • rON = 0.4 at VIN = 5.5 V
    • rON = 0.5 at VIN = 3.3 V
    • rON = 0.6 at VIN = 2.5 V
    • rON = 0.8 at VIN = 1.8 V
  • Minimum Current Limit: 40 mA or 100 mA
  • Undervoltage Lockout
  • Thermal Shutdown
  • Shutdown Current < 1 µA
  • Fast Current Limit Response Time
  • Fault Blanking
  • Auto Restart
  • 1.8-V Compatible Control Input Thresholds
  • ESD Performance Tested Per JESD 22
    • 4000-V Human-Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Tiny SC-70 (DCK) Package
  • APPLICATIONS
    • Low-Current Sensor Protection

View All Features in Datasheet

Description

The TPS2294x load switches provide protection to systems and loads in high-current conditions. The devices contain a 400-m current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS2294x includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.

When the switch current reaches the maximum limit, the TPS22941/2/3/4/5 operates in a constant-current mode to prohibit excessive currents from causing damage.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS22945DCKRACTIVE-40 to 850.36 | 1kuSC70 (DCK) | 5 View 3000 | LARGE T&R
TPS22945DCKRG4ACTIVE-40 to 850.36 | 1kuSC70 (DCK) | 5 View 3000 | 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 10:18 AM GMT, 26 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 14 WeeksTPS22945DCKR
AmericasArrow >1k
Avnet >1k
AsiaFarnell Asia >1k
WPI >1k
EuropeFarnell >1k
WorldwideDigiKey >1k
TI Lead Time*: 14 WeeksTPS22945DCKRG4
WorldwideDigiKey  Available
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
TPS22945DCKR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS22945DCKRG4 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.

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