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

BQ2002 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

 BQ2002
# 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

  • BQ2004: Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination
  • BQ2000: Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination
  • BQ2003: Switch-mode NiCd/NiMH Battery Charger with Negative dV and dT/dt Termination
  • TPS54310: 3V to 6V, 3A Synchronous Step Down SWIFT™ Converter
  • TPS51124: Dual, Synchronous Step Down Controller for Low Voltage System Power
  • TPS54283: Dual 2A Non-Synchronous Step Down SWIFT™ Converter with Integrated High Side MOSFET, 300 kHz

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 bq2002 and bq2002/F 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 bq2002/F to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002/F 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 bq2002/F optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002/F may also be placed in low-standby-power mode to reduce system power consumption.

The bq2002F differs from the bq2002 only in that a slightly different set of fast-charge and top-off time limits is available.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2002PNACTIVE0 to 700.85 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002PNE4ACTIVE0 to 700.85 | 1kuPDIP (P) | 8 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002SNACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002SNG4ACTIVE0 to 700.95 | 1kuSOIC (D) | 8 View 75 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2002SNTRACTIVE0 to 700.85 | 1kuSOIC (D) | 8 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ2002SNTRG4ACTIVE0 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
BQ2002PNAs of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 1 Week AmericasDigiKey 133
 Mouser Electronics 100
 Newark 327
 AsiaWPI 560
BQ2002PNE4As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 1 Week AmericasDigiKey  Available
 EuropeFarnell 432
BQ2002SNAs of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 1 Week AmericasArrow 26
 DigiKey 57
 Mouser Electronics 50
 Newark 253
 Rochester Electronics 77
 AsiaWPI 100
BQ2002SNG4As of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 1 Week AmericasAvnet 100
 DigiKey  Available
 EuropeEBV Elektronik 28
BQ2002SNTRAs of 12:05 PM GMT, 03 Jul 2009As of 12:05 PM GMT, 03 Jul 2009
 Lead TimeRegionCompanyIn StockPurchase
 4 Weeks AmericasDigiKey  Available
BQ2002SNTRG4As 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
BQ2002PN RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
BQ2002PNE4 RoHS Compliant Pb-Free (RoHS) CU NIPDAU N/A for Pkg TypeViewView
BQ2002SN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002SNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002SNTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ2002SNTRG4 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 BQ2002 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
BQ2002 Evaluation Module for NiCd/NiMH, Linear with -dV or Peak Voltage DetectDV2002L2Texas InstrumentsDevelopment Boards/EVMs
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
BQ2004 Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt 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.
BQ2003 Switch-mode NiCd/NiMH Battery Charger with Negative dV and dT/dt Termination   TI customers also evaluated this product.
BQ2002T NiCd/NiMH Charge Controller with dT/dt Termination   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.
BQ2005 Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery Packs   TI customers also evaluated this product.
TPS54310 3V to 6V, 3A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS51124 Dual, Synchronous Step Down Controller for Low Voltage System Power NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS54283 Dual 2A Non-Synchronous Step Down SWIFT™ Converter with Integrated High Side MOSFET, 300 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TLV431A Low Voltage Adjustable Precision Shunt Regulator REFERENCES-SHUNT VOLTAGE REFERENCES TI customers also evaluated this product.
TPS3825-33 Processor Supervisory Circuits POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TPS63001 96% Buck-Boost Converter with 1.7A Current Switches, 3.3V fixed Output voltage in 3x3 QFN DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS TI customers also evaluated this product.
TPS62110 Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54386 Dual 3A Non-Synchronous Buck Converter with Integrated High Side MOSFET, 600 kHz DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
UCC28600 8-Pin Quasi Resonant Flyback Green Mode Controller AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
TPS3809K33 3-Pin Supply Voltage Supervisor POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.

Related End Equipments

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here