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BQ20Z80 Status: NRND

SBS 1.1-Compliant Gas Gauge Enabled with Impedance Track(TM) Technology for Use With the bq29312

      
         
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Product is Not Recommended for New Design (NRND)

Replaced By:

  • BQ20Z80A-V110 The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. 

Datasheet

Download - PDF Icon
  • SBS 1.1-COMPLIANT GAS GAUGE ENABLED W/IMPEDANCE TRACK TECHNOLOGY FOR USE W/bq29 (bq20z80.pdf, 489 KB)
    26 Jul 2007 Download
  • bq20z80-V110 Technical Reference Manual (sluu276.pdf, 1901 KB)
    05 Apr 2007 Download

 BQ20Z80A-V110 
Charge vs Discharge RelationshipC=D  
Battery Capacity(Min)(mAh)800  
Battery Capacity(Max)(mAh)15000  
Communication InterfaceSMBus  
Capacity Indication LEDs(Max)(#)5  
Pin/Package38TSSOP  
Approx. Price (US$) 4.60 | 1ku  
 Samples
 Inventory

Product Information

Features

  • Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries
  • Better than 1% Error Over Lifetime of the Battery
  • Instant Accuracy – No Learning Cycle Required
  • Supports the Smart Battery Specification SBS V1.1
  • Works With the TI bq29312A Analog Front-End (AFE) Protection IC to Provide Complete Pack Electronics Solution
  • Full Array of Programmable Voltage, Current, and Temperature Protection Features
  • Integrated Time Base Removes Need for External Crystal with Optional Crystal Input
  • 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 Field Programmable FLASH Memory Eliminates the Need for External Configuration Memory
  • Measures Charge Flow Using a High-Resolution, 16-Bit Integrating Delta-Sigma Converter
    • Better Than 0.65 nVh of Resolution
    • Self-Calibrating
    • Offset Error Less Than 1 µV
  • Uses 16-Bit Delta-Sigma Converter for Accurate Voltage and Temperature Measurements
  • Extensive Data Reporting Options For Improved System Interaction
  • Optional Pulse Charging Feature for Improved Charge Times
  • Drives 3-, 4- or 5-Segment LED Display for Remaining Capacity Indication
  • Supports SHA-1 Authentication
  • Lifetime Data Logging
  • 38-Pin TSSOP (DBT)
  • APPLICATIONS
    • Notebook PCs
    • Medical and Test Equipment
    • Portable Instrumentation

Impedance Track is a trademark of Texas Instruments.

Description

The bq20z80 SBS-compliant gas gauge IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation. The bq20z80 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The bq20z80 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 bq29312A analog front-end (AFE) protection IC to maximize functionality and safety, and minimize component count and cost in smart battery circuits.

The Impedance Track technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell aging all accounted for during each stage of every cycle.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ20Z80DBTACTIVE-40 to 855.45 | 1kuTSSOP (DBT) | 38 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ20Z80DBTG4ACTIVE-40 to 855.45 | 1kuTSSOP (DBT) | 38 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ20Z80DBTRACTIVE-40 to 855.45 | 1kuTSSOP (DBT) | 38 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ20Z80DBTRG4ACTIVE-40 to 855.45 | 1kuTSSOP (DBT) | 38 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

  TI Inventory Status Reported Distributor Inventory
BQ20Z80DBTAs of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 100 | 26 Nov 20 Weeks AmericasMouser Electronics 205
  Rochester Electronics 25
  AsiaWPI 187
BQ20Z80DBTG4As of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 100 | 26 Nov 20 Weeks None Reported
View Distributors		   
BQ20Z80DBTRAs of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 1 Apr 19 Weeks None Reported
View Distributors		   
BQ20Z80DBTRG4As of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 1 Apr 19 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
BQ20Z80DBT  TBD Call TI Call TIViewView
BQ20Z80DBTG4  TBD Call TI Call TIViewView
BQ20Z80DBTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ20Z80DBTRG4 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

Datasheets

  • SBS 1.1-COMPLIANT GAS GAUGE ENABLED W/IMPEDANCE TRACK TECHNOLOGY FOR USE W/bq29 (bq20z80.pdf, 489 KB)
    26 Jul 2007 Download
  • bq20z80-V110 Technical Reference Manual (sluu276.pdf, 1901 KB)
    05 Apr 2007 Download

Application Notes

  • Design 4: Support of Multiple Li-Ion Chemistries w/Impedance Track(TM) Gas Gauge (Rev. J) (slua372j.htm, 8 KB)
    04 Nov 2008 Abstract
  • Information to Provide when Reporting Issues with TI Gauges (slua474.htm, 8 KB)
    18 Jul 2008 Abstract
  • Cell-type Specific Settings for Cell Imbalance Permanent Failure Thresholds (slua433.htm, 8 KB)
    28 Sep 2007 Abstract
  • Five to Eight-Series-Cell bq20z80 Fuel Gauge (slua435.htm, 8 KB)
    10 Sep 2007 Abstract
  • Quick-Start Guide for bq20zxx Family Gas Gauges (Rev. A) (slua421a.htm, 8 KB)
    04 Sep 2007 Abstract
  • Fast Cell Balancing Using External MOSFET (slua420.htm, 8 KB)
    03 May 2007 Abstract
  • Evaluation 3: Theory/Implementation Impedance Track Battery Fuel-Gauging Algo (Rev. B) (slua364b.htm, 8 KB)
    20 Dec 2006 Abstract
  • Evaluation 7: Preparing Optimized Data Flash Constants (Rev. B) (slua334b.htm, 8 KB)
    04 Dec 2006 Abstract
  • Cell Balancing Using the bq20zxx (Rev. B) (slua340b.htm, 8 KB)
    09 Nov 2006 Abstract
  • Updating Firmware With the bq20zxx and EVM (Rev. B) (slua336b.htm, 8 KB)
    07 Nov 2006 Abstract
  • Pack Assembly and the bq20zxx (Rev. B) (slua335b.htm, 8 KB)
    07 Nov 2006 Abstract
  • bq20z80 EVM Data Flash Settings for Num of Serial Cells/Pack Cap (Rev. B) (slva208b.htm, 8 KB)
    06 Nov 2006 Abstract
  • Battery Pack Production Flow With bq20zXX (slua391.htm, 8 KB)
    02 Aug 2006 Abstract
  • bq20z80 Printed Circuit Board Layout Guide (slua383.htm, 8 KB)
    16 Jun 2006 Abstract
  • Production Flow With bq20z80 Gas Gauges (slua385.htm, 8 KB)
    15 Jun 2006 Abstract
  • Support of Multiple Chemistries (slua384.htm, 8 KB)
    15 Jun 2006 Abstract
  • Data Flash Programming Using the EV Software (slua382.htm, 8 KB)
    15 Jun 2006 Abstract
  • Configuring the bq20z80 Data Flash (slua381.htm, 8 KB)
    15 Jun 2006 Abstract
  • bq20z80 Application Book (slua380.htm, 8 KB)
    15 Jun 2006 Abstract
  • Exploring the bq20z80 Impedance Track Evaluation Kit (Rev. A) (slua351a.htm, 8 KB)
    14 Jun 2006 Abstract
  • bq20z80 Printed Circuit Board Layout Guide (slva232.htm, 8 KB)
    28 Mar 2006 Abstract
  • Impedance Track(TM) Gas Gauge for Novices (slua375.htm, 8 KB)
    30 Jan 2006 Abstract
  • Evaluation 1: Feature Set Comparison Between bq2084 and bq20z80 (slua325.htm, 8 KB)
    29 Nov 2005 Abstract
  • Evaluation 2: Exploring the bq20z80 Impedance Track Evaluation Kit (slua351.htm, 8 KB)
    27 Nov 2005 Abstract
  • Evaluation 3: Theory/Implementation Impedance Track Battery Fuel-Gauging Algo (slua364.htm, 8 KB)
    25 Nov 2005 Abstract
  • Evaluation 6: Using SHA-1 in bq20zxx Family of Gas Gauges (slua359.htm, 8 KB)
    19 Nov 2005 Abstract
  • bq20Z80-v101 to bq20z80-V102 Change List (slua370.htm, 8 KB)
    17 Nov 2005 Abstract
  • Design 1: bq20z80 and bq2084 Gas Gauge Circuit Design (slua350.htm, 8 KB)
    14 Nov 2005 Abstract
  • Design 2: Avoiding ESD and EMI Problems in bq20zxx Battery Pack Electronics (slua368.htm, 8 KB)
    11 Nov 2005 Abstract
  • Design 3: Configuring the bq20z80 Data Flash (slua342.htm, 8 KB)
    10 Nov 2005 Abstract
  • Production 1: Updating Firmware With the bq20z80 and EVM (slua336.htm, 8 KB)
    04 Nov 2005 Abstract
  • Production 2: Data Flash Programming/Calibrating the bq20z80 Gas Gauges (Rev. A) (Rev. A) (slua355a.htm, 8 KB)
    01 Nov 2005 Abstract
  • bq20z80-V101 Temporary SBS.FullChargeCapacity() Invalid Data (slua360.htm, 8 KB)
    10 Sep 2005 Abstract
  • bq20z80 to bq20z80-V101 Change List (slua354.htm, 8 KB)
    17 Aug 2005 Abstract

View Application Notes for Battery Fuel Gauges

User Guides

  • Using bqTester Single Site Software (Rev. A) (slua352a.htm, 8 KB)
    01 Sep 2006 Abstract
  • bqMTester User's Guide (Rev. A) (sluu238a.pdf, 1789 KB)
    24 Aug 2006 Download
  • bq20z80EVM-001 SBS 1.1 Impedance Track Tech Enabled Batt Mgmt Solution EVM (Rev. A) (sluu205a.pdf, 1131 KB)
    02 May 2005 Download

Tools & Software

NamePart # Company Tool / Software Type
BQ20Z80EVM-001 Impedance Track(TM) Fuel Gauge For LiIon Battery PacksBQ20Z80EVM-001Texas InstrumentsDevelopment Boards/EVMs
BQMTESTER Multi Channel Test and Program BoardBQMTESTERTexas InstrumentsDevelopment Boards/EVMs
Single Channel TesterBQTESTERTexas InstrumentsDevelopment Boards/EVMs
bqEASY(TM) For Single Cell Impedance Track(TM) DevicesBQEASY-SW Texas Instruments Application Software 
  • Chemistry Updater Setup 1.13 (Rev. G)(sluc066g.zip, 1038 KB )
               14 May 2008 zip
  • bq20z80 Multiple Li-Ion Chemistries Software (Rev. C)(sluc058c.zip, 73 KB )
               17 Jan 2008 zip

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