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BQ2084-V140 Status: NRND

SBS V1.1 Compliant Gas Gauge For Use With The bq29312A


      
         
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Alert Icon   NRND: This product is not recommended for new designs. However, the device, tool, or software continues to be in production to support existing customers. TI does not recommend using this part in a new design. TI encourages designers to consider alternative products for new designs.

Replaced By:

  • BQ2084-V143 The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device. 

Product Information

Features

  • Provides Accurate Measurement of Available Charge in Li-Ion and Li-Polymer Batteries
  • Supports the Smart Battery Specification (SBS) V1.1
  • Integrated Time Base Removes Need for External Crystal with Optional Crystal input
  • Works With the TI bq29312 Analog Front-End (AFE) Protection IC to Provide Complete Pack Electronics for 7.2-V, 10.8-V or 14.4-V Battery Packs With Few External Components
  • Based on a Powerful Low-Power RISC CPU Core With High-Performance Peripherals
  • Integrated Flash Memory Eliminates the Need for External Configuration EEPROM
  • Uses 16-Bit Delta Sigma Converter for Accurate Voltage and Temperature Measurements
  • Measures Charge Flow Using a High Resolution 16-Bit Integrating Converter
    • Better Than 0.65-nVh of Resolution
    • Self-Calibrating
    • Offset Error Less Than 1-µV
  • Programmable Cell Modeling for Maximum Battery Fuel Gauge Accuracy
  • Drives 3-, 4-, or 5-Segment LED Display for Remaining Capacity Indication
  • Available in a 38-Pin TSSOP (DBT) Package
  • APPLICATIONS
    • Notebook PCs
    • Medical and Test Equipment
    • Portable Instrumentation

Description

The bq2084-V140 SBS-compliant gas gauge IC for battery pack or in-system installation maintains an accurate record of available charge in Li-ion or Li-polymer batteries. The bq2084-V140 monitors capacity and other critical parameters of the battery pack and reports the information to the system host controller over a serial communication bus. It is designed to work with the bq29312 AFE protection IC to maximize functionality and safety and minimize component count and cost in smart battery circuits. Using information from the bq2084-V140, the host controller can manage remaining battery power to extend the system run time as much as possible.

The bq2084-V140 uses an integrating converter with continuous sampling for the measurement of battery charge and discharge currents.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2084DBT-V140NRND-20 to 706.05 | 1kuTSSOP (DBT) | 38 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
BQ2084DBT-V140G4NRND-20 to 706.05 | 1kuTSSOP (DBT) | 38 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
BQ2084DBTR-V140NRND-20 to 705.50 | 1kuTSSOP (DBT) | 38 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
BQ2084DBTR-V140G4NRND-20 to 705.50 | 1kuTSSOP (DBT) | 38 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintNot Available
BQ2084RTTR-V140NRND-20 to 855.50 | 1kuQFN (RTT) | 36  3000 | LARGE T&R Download CAD Format for this Symbol Not Available
BQ2084RTTR-V140G4NRND-20 to 855.50 | 1kuQFN (RTT) | 36  3000 | LARGE T&R Download CAD Format for this Symbol Not Available
BQ2084RTTT-V140NRND-20 to 856.05 | 1kuQFN (RTT) | 36  250 | SMALL T&R Download CAD Format for this Symbol Not Available
BQ2084RTTT-V140G4NRND-20 to 856.05 | 1kuQFN (RTT) | 36  250 | SMALL T&R Download CAD Format for this Symbol Not Available

* 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 12:14 PM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ2084DBT-V140
None Reported
View Distributors
TI Lead Time*: 20 WeeksBQ2084DBT-V140G4
None Reported
View Distributors
TI Lead Time*: 20 WeeksBQ2084DBTR-V140
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksBQ2084DBTR-V140G4
None Reported
View Distributors
TI Lead Time*: 16 WeeksBQ2084RTTR-V140
WorldwideDigiKey >1k
TI Lead Time*: 16 WeeksBQ2084RTTR-V140G4
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksBQ2084RTTT-V140
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksBQ2084RTTT-V140G4
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
BQ2084DBT-V140  Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2084DBT-V140G4  Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2084DBTR-V140  Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2084DBTR-V140G4  Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2084RTTR-V140  Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
BQ2084RTTR-V140G4  Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
BQ2084RTTT-V140  Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView
BQ2084RTTT-V140G4  Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HRViewView

* 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 BQ2084-V140 Help

Datasheet

Application Notes

View Application Notes for Battery Fuel Gauges

Tools & Software

NamePart # Company Tool / Software Type
BQ2084EVM-001 Gas Gauge Evaluation System for LiIon LiPoly battery packsBQ2084EVM-001Texas InstrumentsDevelopment Boards/EVMs

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