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BQ29312A Status: ACTIVE

Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE


      
         
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 BQ29312A
Cells Protected2, 3, 4  
Protection FETsExternal  
Shutdown Current(uA)1  
Pin/Package24QFN, 24TSSOP  
Approx. Price (US$) 1.00 | 1ku  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BQ29330: Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE
  • BQ29419: Voltage Protection for 2, 3, or 4 Cell Li-Ion Batteries
  • BQ77PL900: 5-10 cell Li-ion Battery protection & AFE
  • BQ20Z40: SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330
  • BQ20Z80A-V110: SBS 1.1 Compliant Gas Gauge Enabled with Impedance Track Technology for use with the bq29312A
  • BQ2084-V143: SBS v1.1 Compliant Gas Gauge for use with the BQ29312A

More Related Products

Product Information

Features

  • 2-, 3-, or 4-Cell Series Protection Control
  • Can Directly Interface With the bq2084 Gas Gauges
  • Provides Individual Cell Voltages and Battery Voltage to Battery Management Host
  • Integrated Cell Balancing Drive
  • I2C Compatible User Interface Allows Access to Battery Information
  • Programmable Threshold and Delay for Overload and Short Circuit During Charge and Discharge
  • System Alert Interrupt Output
  • Host Control Can Initiate Sleep Power Mode and Ship Mode
  • Integrated 3.3-V, 25-mA LDO
  • Supply Voltage Range From 4.5 V to 25 V
  • Low Supply Current of 60-µA Typical
  • bq29312A is 100% specification compatible with the bq29312
  • APPLICATIONS
    • Notebook PCs
    • Medical and Test Equipment
    • Portable Instrumentation

Description

The bq29312A is a 2-, 3-, or 4-cell lithium-ion battery pack protection analog front end (AFE) IC that incorporates a 3.3-V, 25-mA low-dropout regulator (LDO). The bq29312A also integrates an I2C compat- ible interface to extract battery parameters such as cell voltages and control output status. Other par- ameters such as current protection thresholds and delays can be programmed into the bq29312A to increase the flexibility of the battery management system.

The bq29312A provides safety protection for over- charge, overload, short-circuit, overvoltage, and undervoltage conditions with the battery management host. In overload and short-circuit conditions, the bq29312A turns the FET drive off autonomously dependant on the internal configuration setting.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ29312APWACTIVE-40 to 851.10 | 1kuTSSOP (PW) | 24 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29312APWG4ACTIVE-40 to 851.10 | 1kuTSSOP (PW) | 24 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29312APWRACTIVE-40 to 851.00 | 1kuTSSOP (PW) | 24 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ29312APWRG4ACTIVE-40 to 851.00 | 1kuTSSOP (PW) | 24 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ29312ARTHRACTIVE-40 to 851.00 | 1kuQFN (RTH) | 24 View 3000 | LARGE T&R Download CAD Format for this Symbol 
BQ29312ARTHRG4ACTIVE-40 to 851.00 | 1kuQFN (RTH) | 24 View 3000 | LARGE T&R Download CAD Format for this Symbol 

* 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, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ29312APW
WorldwideDigiKey 55
TI Lead Time*: 20 WeeksBQ29312APWG4
AmericasRochester Electronics 17
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29312APWR
AsiaWintech >1k
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29312APWRG4
WorldwideDigiKey  Available
TI Lead Time*: 16 WeeksBQ29312ARTHR
WorldwideDigiKey 6
Mouser Electronics >1k
TI Lead Time*: 16 WeeksBQ29312ARTHRG4
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
BQ29312APW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29312APWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29312APWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29312APWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29312ARTHR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEARViewView
BQ29312ARTHRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAUAG 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 BQ29312A Help

Datasheet

Application Notes

User Guides

Errata

Tools & Software

NamePart # Company Tool / Software Type
BQ20Z80EVM-001 Impedance Track(TM) Fuel Gauge For LiIon Battery PacksBQ20Z80EVM-001Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ29330 Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ29419 Voltage Protection for 2, 3, or 4 Cell Li-Ion Batteries BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ77PL900 5-10 cell Li-ion Battery protection & AFE BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ29311 3-, 4-Cell Lithium-Ion Protection IC for Use With BQ2083/5 BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ29410 Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.35V) BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ29400 2nd Level Over Voltage Protection for 2, 3, or 4 Cell LiIon & LiPoly Batteries (2nd Lev Protection) BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ29412 Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.45V) BATTERY MANAGEMENT-LITHIUM ION PROTECTION TI customers also evaluated this product.
BQ20Z40 SBS Compliant Gas Gauge with Impedance Track Technology for use with BQ29330 BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ20Z80A-V110 SBS 1.1 Compliant Gas Gauge Enabled with Impedance Track Technology for use with the bq29312A BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ2084-V143 SBS v1.1 Compliant Gas Gauge for use with the BQ29312A BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ78PL114 PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ2954 Switch-mode Li-Ion Charge Controller BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ20Z95 SBS 1.1-Compliant Gas Gauge Enabled w/Impedance Track BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
BQ2084-V150 SBS v1.1 Compliant Gas Gauge with LED Delay BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.

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