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BQ29410 Status: ACTIVE

Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.35V)


      
         
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 BQ29410BQ29411 BQ29412 BQ29413 BQ29414 BQ29415 BQ29419 
Cells Protected2, 3, 4  2, 3, 4  2, 3, 4  2, 3, 4  2, 3, 4  2, 3, 4  2, 3, 4  
Overvoltage Threshold(V)4.35  4.40  4.45  4.5  4.55  4.6  4.30  
Protection FETsExternal  External  External  External  External  External  External  
Shutdown Current(uA)2  2  2  2  2  2  2  
Pin/Package8SM8, 8TSSOP  8SM8, 8TSSOP  8SM8, 8TSSOP  8SM8, 8TSSOP  8SM8, 8TSSOP  8SM8, 8TSSOP  8TSSOP  
Approx. Price (US$) 0.45 | 1ku   0.45 | 1ku   0.45 | 1ku   0.45 | 1ku   0.45 | 1ku   0.45 | 1ku   0.45 | 1ku  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

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
  • BQ2954: Switch-mode Li-Ion Charge Controller
  • BQ78PL114: PowerLAN Gateway Battery Management Controller with PowerPump Cell Balancing

More Related Products

Product Information

Features

  • 2-, 3-, or 4-Cell SecondaryProtection
  • Low Power Consumption ICC < 2 µA [VCELL(ALL) < V(PROTECT)]
  • Fixed High Accuracy Overvoltage Protection Threshold
    • bq29410 = 4.35 V
    • bq29411 = 4.40 V
    • bq29412 = 4.45 V
    • bq29413 = 4.50 V
    • bq29414 = 4.55 V
    • bq29415 = 4.60 V
    • bq29419 = 4.30 V
  • Programmable Delay Time of Detection
  • High Power Supply Ripple Rejection
  • Stable During Pulse Charge Operation
  • APPLICATIONS
    • 2nd-Level Overvoltage Protection in Li-Ion Battery Packs in:
      • Notebook Computers
      • Portable Instrumentation
      • Portable Equipment

Description

The bq2941x is a secondary overvoltage protection IC for 2-, 3-, or 4-cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit. It includes a programmable delay circuit for overvoltage detection time.

FUNCTION

Each cell in a multiple-cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2941x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ29410DCT3RACTIVE-40 to 1100.45 | 1kuSM8 (DCT) | 8  3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29410DCT3RE6ACTIVE-40 to 1100.45 | 1kuSM8 (DCT) | 8  3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29410DCTRACTIVE-40 to 1100.45 | 1kuSM8 (DCT) | 8  3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29410DCTRG4ACTIVE-40 to 1100.45 | 1kuSM8 (DCT) | 8  3000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29410DCTTACTIVE-40 to 1100.50 | 1kuSM8 (DCT) | 8  250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ29410DCTTG4ACTIVE-40 to 1100.50 | 1kuSM8 (DCT) | 8  250 | SMALL T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ29410PWACTIVE-40 to 1100.50 | 1kuTSSOP (PW) | 8 View 150 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ29410PWRACTIVE-40 to 1100.45 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ29410PWRG4ACTIVE-40 to 1100.45 | 1kuTSSOP (PW) | 8 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this Footprint

* 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 WeeksBQ29410DCT3R
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29410DCT3RE6
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29410DCTR
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksBQ29410DCTRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29410DCTT
AsiaFarnell Asia 230
EuropeFarnell 230
WorldwideDigiKey  Available
Mouser Electronics 700
TI Lead Time*: 20 WeeksBQ29410DCTTG4
EuropeEBV Elektronik 250
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29410PW
AmericasAvnet 100
Newark 40
Rochester Electronics 300
AsiaFarnell Asia 40
WPI 174
EuropeEBV Elektronik 300
WorldwideDigiKey 195
TI Lead Time*: 20 WeeksBQ29410PWR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ29410PWRG4
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
BQ29410DCT3R RoHS Compliant Pb-Free (RoHS) CU SNBI Level-1-260C-UNLIMViewView
BQ29410DCT3RE6 RoHS Compliant Pb-Free (RoHS) CU SNBI Level-1-260C-UNLIMViewView
BQ29410DCTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29410DCTRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29410DCTT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29410DCTTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ29410PW  TBD CU NIPDAU Level-1-220C-UNLIMViewView
BQ29410PWR  TBD CU NIPDAU Level-1-220C-UNLIMViewView
BQ29410PWRG4 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 BQ29410 Help

Datasheet

Application Notes

Tools & Software

NamePart # Company Tool / Software Type
BQ20Z70EVM Evaluation Module for 2nd Generation Impedance Track(TM)BQ20Z70EVM-001Texas InstrumentsDevelopment Boards/EVMs
BQ20Z90EVM Evaluation Module for 2nd Generation Impedance Track(TM)BQ20Z90EVM-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.
BQ29312A Two, Three and Four Cell Lithium or Lithium-Polymer 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.
BQ2954 Switch-mode Li-Ion Charge Controller BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT 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.

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