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BQ2002D Status: ACTIVE

NiCd/NiMH Charge Controller with dT/dt Termination

      
         
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Datasheet

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 BQ2002D
# Series CellsMultiple  
Charge Current(Max)(A)>2  
Charge Status Outputs1  
Control TopologyCurrent Limited  
Primary Charge Termination MethoddT/dt  
Pin/Package8SOIC  
Vin(Max)(V)7  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BQ2005: Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery Packs
  • BQ2002C: NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination
  • BQ2000: Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination

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Product Information

Features

  • Fast charge of nickel cadmium or nickel-metal hydride batteries
  • Direct LED output displays charge status
  • Fast-charge termination by rate of rise of temperature, maximum voltage, maximum
    temperature, and maximum time
  • Internal band-gap voltage reference
  • Optional top-off charge (bq2002T only)
  • Selectable pulse-trickle charge rates (bq2002T only)
  • Low-power mode
  • 8-pin 300-mil DIP or 150-mil SOIC

Description

The bq2002D/T Fast-Charge IC are low-cost CMOS battery-charge controllers able to provide reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002D/T to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002D/T integrates fast charge with optional top-off and pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells.

Fast charge is initiated on application of the charging supply or battery replacement. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.

Fast charge is terminated by any of the following:

  • Rate of temperature rise
  • Maximum voltage
  • Maximum temperature
  • Maximum time

After fast charge, the bq2002T optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002D/T may be placed in low-standby-power mode to reduce system power consumption.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2002DSNACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002DSNG4ACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002DSNTRACTIVE0 to 700.85 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ2002DSNTRG4ACTIVE0 to 700.85 | 1kuSOIC (D) | 8 View 2500 | 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
BQ2002DSNAs of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 1 Week AmericasDigiKey 141
 Mouser Electronics 279
 Newark 296
 Rochester Electronics >1k
 AsiaWPI 100
 EuropeEBV Elektronik 75
BQ2002DSNG4As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 1 Week AmericasDigiKey  Available
BQ2002DSNTRAs of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
 Rochester Electronics >1k
BQ2002DSNTRG4As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  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
BQ2002DSN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002DSNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002DSNTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002DSNTRG4 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 TI Recommends - Technical Documentation TI Recommends

Most useful technical documents for BQ2002D Help

Datasheet

Application Notes

View Application Notes for Battery Charge Management

User Guides

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
Temp Sense Designer SoftwareTEMPSENSE-SWTexas InstrumentsAnalysis Software
Quick Search Selection Tool for Battery ChargersBATTERY_CHARGERS_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ2005 Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery Packs   TI customers also evaluated this product.
BQ2002C NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination   TI customers also evaluated this product.
BQ2000 Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination   TI customers also evaluated this product.
BQ2000T Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination   TI customers also evaluated this product.
BQ2002 NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination   TI customers also evaluated this product.
BQ2002T NiCd/NiMH Charge Controller with dT/dt Termination   TI customers also evaluated this product.
BQ2004 Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination   TI customers also evaluated this product.
BQ2002E NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination   TI customers also evaluated this product.
BQ2002G NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination   TI customers also evaluated this product.
BQ24753 Host-Controlled Multi-Chemistry Battery Charger with Low Iq and System Power Selector   TI customers also evaluated this product.

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