TI Home > Semiconductors > Power Management > Battery Management > Battery Charge Management >

BQ2002G Status: ACTIVE

NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination


      
         
Alert me about changes<br/>to this product


Datasheet

Download - PDF Icon

 BQ2002G
# Series CellsMultiple  
Charge Current(Max)(A)>2  
Charge Status Outputs1  
Control TopologyCurrent Limited  
Primary Charge Termination Method(-)dV, PVD  
Pin/Package8PDIP, 8SOIC  
Vin(Max)(V)7  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • BQ2002: NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination
  • BQ2004H: Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination
  • BQ2002T: NiCd/NiMH Charge Controller with dT/dt Termination

More Related Products

Product Information

Features

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

Description

The bq2002E and bq2002G Fast-Charge ICs are low-cost CMOS battery-charge controllers providing reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002E/G to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002E/G 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:

  • Peak voltage detection (PVD)
  • Negative delta voltage (-V)
  • Maximum voltage
  • Maximum temperature
  • Maximum time

After fast charge, the bq2002E/G optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002E/G may also be placed in low-standby-power mode to reduce system power consumption. The bq2002E differs from the bq2002G only in that a slightly different set of fast-charge and top-off time limits is available. All differences between the two ICs are illustrated in Table 1.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2002GPNACTIVE0 to 700.85 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002GPNE4ACTIVE0 to 700.85 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002GSNACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002GSNG4ACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002GSNTRACTIVE 0.85 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ2002GSNTRG4ACTIVE 0.85 | 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

Reported Distributor Inventory as of 12:08 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksBQ2002GPN
AmericasRochester Electronics 50
WorldwideDigiKey 149
TI Lead Time*: 4 WeeksBQ2002GPNE4
WorldwideDigiKey  Available
TI Lead Time*: 1 WeekBQ2002GSN
AmericasNewark 210
Rochester Electronics >1k
AsiaFarnell Asia 210
WorldwideDigiKey 91
TI Lead Time*: 1 WeekBQ2002GSNG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ2002GSNTR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ2002GSNTRG4
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
BQ2002GPN RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
BQ2002GPNE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
BQ2002GSN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002GSNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002GSNTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002GSNTRG4 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 BQ2002G Help

Datasheet

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
BQ2002 NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2004H Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2002T NiCd/NiMH Charge Controller with dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2000 Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2004 Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2002F NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2000T Switch-mode Multi-Chemistry Battery Charger with dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24401 Switch-mode NiCd/NiMH Battery Charger with dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2004E Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2002D NiCd/NiMH Charge Controller with dT/dt Termination BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here