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BQ2019 Status: ACTIVE

FLASH-Based Precision Multi-Chemistry Charge/Discharge Counter W/High-Speed 1-Wire I/F (HDQ)


      
         
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 BQ2019
Communication InterfaceHDQ  
Pin/Package8TSSOP  
Approx. Price (US$) 1.95 | 1ku  
 Samples
 Inventory

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Product Information

Features

  • Multifunction Monitoring IC Designed to Work With an Intelligent Host Controller
    • Provides State-of-Charge Information for Rechargeable Batteries
    • Enhances Charge Termination
  • Ideal for Single-Cell Li-Ion or 3-Cell NiMH Applications
  • High-Accuracy Coulometric Charge and Discharge Current Integration With Offset Calibration
  • 32 Bytes of General-Purpose RAM
  • 96 Bytes of Flash (Including 32 Bytes of Shadow Flash)
  • 8 Bytes of ID ROM
  • Internal Temperature Sensor Eliminates the Need for an External Thermistor
  • Multifunction Digital Output Port
  • High-Accuracy Internal Timebase Eliminates External Crystal Oscillator
  • Low Power Consumption
    • Operating: <80 µA
    • Sleep: <1.5 µA
  • Single-Wire HDQ Serial Interface
  • Packaging: 8-Lead TSSOP

Description

The bq2019 advanced battery-monitoring IC accurately measures the charge and discharge currents in a rechargeable battery pack. In pack integration, the bq2019 is the basis of a comprehensive battery-capacity management system in portable applications such as cellular phones, PDAs, or other portable products.

The bq2019 works with the host controller in the portable system to implement the battery management system. The host controller interprets the bq2019 data and communicates meaningful battery data to the end-user or power-management system.

The bq2019 provides 64 bytes of general-purpose flash memory, 8 bytes of ID ROM, and 32 bytes of flash-backed RAM for data storage. The nonvolatile memory can maintain formatted battery-monitor information, identification codes, warranty information, or other critical battery parameters when the battery is temporarily shorted or deeply discharged.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2019PWACTIVE-20 to 702.10 | 1kuTSSOP (PW) | 8 View 100 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2019PWG4ACTIVE-20 to 702.10 | 1kuTSSOP (PW) | 8 View 100 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2019PWRACTIVE-20 to 701.95 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ2019PWRG4ACTIVE-20 to 701.95 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase 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 12:08 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ2019PW
AsiaWPI 21
EuropeAvnet-SILICA 90
WorldwideMouser Electronics 10
TI Lead Time*: 20 WeeksBQ2019PWG4
AmericasAvnet 40
AsiaFarnell Asia 132
EuropeFarnell 132
TI Lead Time*: 20 WeeksBQ2019PWR
AmericasArrow >1k
TI Lead Time*: 20 WeeksBQ2019PWRG4
None Reported
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** 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
BQ2019PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2019PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2019PWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2019PWRG4 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 BQ2019 Help

Datasheet

Application Notes

View Application Notes for Battery Fuel Gauges

User Guides

Tools & Software

NamePart # Company Tool / Software Type
EV2200 PC Interface BoardEV2200Texas InstrumentsDevelopment Boards/EVMs

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