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BQ20Z40 Status: ACTIVE

SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330


      
         
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 BQ20Z40BQ20Z45 
Battery Capacity(Min)(mAh)800  800  
Battery Capacity(Max)(mAh)15000  15000  
Communication InterfaceSMBus  SMBus  
# Series Cells2,3,4  2,3,4  
Pin/Package20TSSOP  38TSSOP  
Approx. Price (US$) 3.40 | 1ku   4.40 | 1ku  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ20Z45: SBS 1.1 compliant Gas Gauge with Impedance Track Technology and Advanced Charging Algorithm
  • BQ78PL114: PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing
  • BQ20Z75-V160: SBS 1.1-Compliant Gas Gauge and Protection-Enabled IC with Impedance Track(TM)
  • BQ29330: Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE
  • BQ77PL900: 5-10 cell Li-ion Battery protection & AFE
  • BQ29419: Voltage Protection for 2, 3, or 4 Cell Li-Ion Batteries

More Related Products

Product Information

Features

  • Next Generation Patented Impedance Track Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
    • Better Than 1% Error Over the Lifetime of the Battery
  • Supports the Smart Battery Specification SBS V1.1
  • Flexible Configuration for 2 to 4 Series Li-Ion and Li-Polymer Cells
  • Powerful 8-Bit RISC CPU With Ultralow Power Modes
  • Full Array of Programmable Protection Features
    • Voltage, Current, and Temperature
  • Satisfies JEITA Guidelines
  • Added Flexibility to Handle More Complex Charging Profiles
  • Lifetime Data Logging
  • Supports SHA-1 Authentication
  • Available in a 20-Pin TSSOP (PW) package
  • APPLICATIONS
    • Notebook PCs
    • Medical and Test Equipment
    • Portable Instrumentation

Impedance Track is a trademark of Texas Instruments.

Description

The bq20z40 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z40 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z40 monitors capacity change, battery impedance, open-circuit voltage, 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 bq29330 analog front-end (AFE) protection IC to maximizes functionality and safety while minimizing external component count and cost in smart battery circuits.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
BQ20Z40PWACTIVE-40 to 853.40 | 1kuTSSOP (PW) | 20 View 70 | TUBE
BQ20Z40PWRACTIVE-40 to 853.40 | 1kuTSSOP (PW) | 20 View 2000 | LARGE 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 12:15 PM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ20Z40PW
AmericasAvnet 140
Newark 140
WorldwideDigiKey 407
Mouser Electronics 30
TI Lead Time*: 20 WeeksBQ20Z40PWR
None Reported
View Distributors
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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
BQ20Z40PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ20Z40PWR 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.

Technical Documents

Most useful technical documents for BQ20Z40 Help

Datasheet

Application Notes

View Application Notes for Battery Fuel Gauges

User Guides

Errata

Tools & Software

NamePart # Company Tool / Software Type
BQ20Z40EVM-001 SBS 1.1 Impedance Track™ Tech Enabled Battery Mgmt Solution KitBQ20Z40EVM-001Texas InstrumentsDevelopment Boards/EVMs

Part # Name Product Family Comments
BQ29330   Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE   BATTERY MANAGEMENT - LITHIUM ION PROTECTION   BQ20Z40 is designed to work with the BQ29330 front-end (AFE) protection IC to maximize functionality and safety, and minimize component count and cost in smart battery circuits
See Literature slus801a    
BQ29412   Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.45V)   BATTERY MANAGEMENT - LITHIUM ION PROTECTION      
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