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TPS3818G25 Status: ACTIVE

Low Quiescent Current, Accurate Programmable-Delay Supervisory Circuit


      
         
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Datasheet

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Functional Block Diagram


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 TPS3818G01 TPS3818G09 TPS3818G12 TPS3818G125 TPS3818G15 TPS3818G18 TPS3818G25TPS3818G30 TPS3818G33 
No. of Supervisors1  1  1  1  1  1  1  1  1  
Vit1(Typ)(V)Adj  0.84  1.12  1.16  1.4  1.67  2.33  2.79  3.07  
Reset Threshold Accuracy(%)0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  0.5  
Time Delay(ms)      Prog    
# of supplies monitored1  1  1  1  1  1  1  1  1  
IDD(Typ)(uA)2.4  2.4  2.4  2.4  2.4  2.4  2.4  2.4  2.4  
Pin/Package6SON  6SON  6SON  6SON  6SON  6SON  6SON  6SON  6SON  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  Catalog  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 Inventory Not AvailableInventory Not AvailableInventory Not AvailableInventory Not AvailableInventory Not AvailableInventory Not AvailableInventoryInventory Not AvailableInventory Not Available

Product Information

Features

  • Power-On Reset Generator withAdjustable Delay Time: 1.25ms to 10s
  • Very Low Quiescent Current: 2.4µA typ
  • High Threshold Accuracy: 0.5% typ
  • Fixed Threshold Voltages for Standard Voltage Rails from 0.9V to 5V and Adjustable Voltage Down to 0.4V Are Available
  • Manual Reset (MR) Input
  • Open-Drain RESET Output
  • Temperature Range: -40°C to +125°C
  • Small SOT23 and 2mm × 2mm QFN Packages
  • APPLICATIONS
    • DSP or Microcontroller Applications
    • Notebook/Desktop Computers
    • PDAs/Hand-Held Products
    • Portable/Battery-Powered Products
    • FPGA/ASIC Applications

PowerPAD Is a trademark of Texas Instruments
All other trademarks are the property of their respective owners

Description

The TPS3818xxx family of microprocessor supervisory circuitsmonitor system voltages from 0.4V to 5.0V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.

The TPS3818 uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3V. The reset delay time can be set to 20ms by disconnecting the CT pin, 300ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25ms and 10s by connecting the CT pin to an external capacitor. When used with an external capacitor, the TPS3818xxx gives a more accurate delay time than the similar TPS3808xxx device. The TPS3818 has a very low typical quiescent current of 2.4µA so it is well-suited to battery-powered applications. It is available in either a small SOT23 and an ultra-small 2mm × 2mm QFN PowerPAD package, and is fully specified over a temperature range of -40°C to +125°C (TJ).

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS3818G25DRVRACTIVE-40 to 1250.95 | 1kuSON (DRV) | 6 3000 | LARGE T&RPurchase Samples
TPS3818G25DRVRG4ACTIVE-40 to 1250.95 | 1kuSON (DRV) | 6 3000 | LARGE T&RPurchase Samples
TPS3818G25DRVTACTIVE-40 to 1251.00 | 1kuSON (DRV) | 6 250 | SMALL T&R
TPS3818G25DRVTG4ACTIVE-40 to 1251.00 | 1kuSON (DRV) | 6 250 | 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 10:10 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS3818G25DRVR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTPS3818G25DRVRG4
WorldwideDigiKey  Available
TI Lead Time*: 4 WeeksTPS3818G25DRVT
AmericasAvnet 500
Newark >1k
AsiaFarnell Asia >1k
EuropeArrow Southern Europe 250
EBV Elektronik 250
WorldwideDigiKey >1k
TI Lead Time*: 4 WeeksTPS3818G25DRVTG4
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
TPS3818G25DRVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS3818G25DRVRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS3818G25DRVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS3818G25DRVTG4 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.

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