BQ2004 Status: ACTIVE

Switch-mode NiCd/NiMH Battery Charger w/Negative dV, Peak Voltage Detection, dT/dt Termination

      
         
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Datasheet

Download - PDF Icon
  • Fast-Charge IC (Rev. B) (bq2004.pdf, 492 KB)
    19 Apr 2005 Download

 BQ2004
# Series CellsMultiple  
Charge Current(Max)(A)>2  
Charge Status Outputs2  
Control TopologySwitchmode  
Switching Frequency(kHz)300  
Primary Charge Termination Method(-)dV, PVD, dT/dt  
Pin/Package16PDIP,16SOIC  
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
  • BQ2000: Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection Termination
  • BQ2005: Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery Packs
  • TPS54331: 3A, 28V Input Step Down SWIFT(tm) DC/DC Converter with Eco-mode(tm)

Product Information

Features

  • Fast charge and conditioning of nickel cadmium or nickel-metal hydride batteries
  • Hysteretic PWM switch-mode current regulation or gated control of an external regulator
  • Easily integrated into systems or used as a stand-alone charger
  • Pre-charge qualification of temperature and voltage
  • Configurable, direct LED outputs display battery and charge status
  • Fast-charge termination by V, maximum voltage, maximum temperature, and maximum time
  • Optional top-off charge and pulsed current maintenance charging
  • Logic-level controlled low-power mode (< 5µA standby current)

Description

The bq2004 Fast Charge IC provides comprehensive fast charge control functions together with high-speed switching power control circuitry on a monolithic CMOS device.

Integration of closed-loop current control circuitry allows the bq2004 to be the basis of a cost-effective solution for stand-alone and system integrated chargers for batteries of one or more cells.

Switch-activated discharge-before charge allows bq2004-based chargers to support battery conditioning and capacity determination.

High-efficiency power conversion is accomplished using the bq2004 as a hysteretic PWM controller for switch-mode regulation of the charging current. The bq2004 may alternatively be used to gate an externally regulated charging current.

Fast charge may begin on application of the charging supply, replacement of the battery, or switch depression. For safety, fast charge is inhibited unless/until the battery temperature and voltage are within configured limits.

Temperature, voltage, and time are monitored throughout fast charge. Fast charge is terminated by any of the following:

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

After fast charge, optional top-off and pulsed current maintenance phases are available.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
BQ2004PNACTIVE-20 to 702.50 | 100uPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2004PNG4ACTIVE-20 to 702.50 | 100uPDIP (N) | 16 View 25 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2004SNACTIVE-20 to 702.50 | 100uSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2004SNG4ACTIVE-20 to 702.50 | 100uSOIC (D) | 16 View 40 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
BQ2004SNTRACTIVE-20 to 702.50 | 100uSOIC (D) | 16 View 2500 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
BQ2004SNTRG4ACTIVE-20 to 702.50 | 100uSOIC (D) | 16 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
BQ2004PNAs of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 6700 | 26 Nov 4 Weeks AmericasAvnet 170
 5910 | 2 Dec DigiKey 709
  Mouser Electronics 869
  Newark 489
  Rochester Electronics >1k
  AsiaWPI 60
  EuropeEBV Elektronik 25
BQ2004PNG4As of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 6700 | 26 Nov 4 Weeks AmericasMouser Electronics 115
 5910 | 2 Dec     
BQ2004SNAs of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2320 | 26 Nov 4 Weeks AmericasArrow >1k
 7068 | 1 Dec Avnet >1k
 4617 | 17 Dec DigiKey 473
  Mouser Electronics 535
  Newark 826
  AsiaWPI 70
  EuropeArrow Northern Europe 80
  Arrow Southern Europe 720
  Farnell 504
  Spoerle 800
BQ2004SNG4As of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 2320 | 26 Nov 4 Weeks None Reported
View Distributors
   
 7068 | 1 Dec     
 4617 | 17 Dec     
BQ2004SNTRAs of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 26 Nov 4 Weeks None Reported
View Distributors
   
BQ2004SNTRG4As of 10:16 AM GMT, 19 Nov 2008As of 10:16 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 26 Nov 4 Weeks None Reported
View Distributors
   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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
BQ2004PN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
BQ2004PNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg TypeViewView
BQ2004SN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2004SNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2004SNTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ2004SNTRG4 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 TI Recommends - Technical Documentation TI Recommends

Datasheets

  • Fast-Charge IC (Rev. B) (bq2004.pdf, 492 KB)
    19 Apr 2005 Download

Application Notes

  • Battery Charger Termination Issues With System Load Applied Across Battery (Rev. A) (slva166a.htm, 8 KB)
    02 Oct 2006 Abstract
  • Battery Charger Termination Issues With System Load Applied Across Battery (slva166.htm, 8 KB)
    21 Apr 2004 Abstract
  • High-Side Current Sensing with Benchmarq's Fast-Charge Control ICs (slua066.htm, 8 KB)
    05 Sep 1999 Abstract
  • Using NiMH and Li-Ion Batteries in Portable Applications (slua015.htm, 8 KB)
    05 Sep 1999 Abstract

View Application Notes for Battery Charge Management

User Guides

  • bq2004 Selection Table (sluu230.pdf, 52 KB)
    30 Aug 2005 Download
  • DV2004S1/ES1/HS1 Fast Charge Dev System Control of On-Board P-FET S-M Reg (Rev. A) (sluu016a.pdf, 2133 KB)
    30 Aug 2002 Download
  • EV2014x Gas Gauge and Fast Charge Evaluation Board (sluu037.htm, 8 KB)
    05 Sep 1999 Abstract
  • DV2004L3 Fast Charge Development System Control of F-M Linear Reg User's Guide (sluu015.htm, 9 KB)
    05 Sep 1999 Abstract
  • DV2004L1 Fast Charge Development System Control of PNP Power Transistor (sluu014.htm, 9 KB)
    05 Sep 1999 Abstract

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
BQ2004 Evaluation Module for NiCd/NiMH, switchmode, up to 3ADV2004S1Texas InstrumentsDevelopment Boards/EVMs
BQ2004 Evaluation Module for NiCd/NiMH, linearDV2004L1Texas InstrumentsDevelopment Boards/EVMs

 Alternative Products - Are similar to BQ2004
Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
BQ2002NiCd/NiMH Charge Controller with Negative dV and Peak Voltage Detection TerminationTI customers also evaluated this product.
BQ2000Switch-mode Multi-Chemistry Battery Charger with Peak Voltage Detection TerminationTI customers also evaluated this product.
BQ2005Switch-mode NiCd/NiMH Battery Charger for Sequential Charging Of Dual Battery PacksTI customers also evaluated this product.
 Complementary Products - Can be used with BQ2004
Customers Who Evaluated This Product Also Evaluated...
Part #NameProduct FamilyComments
TPS543313A, 28V Input Step Down SWIFT(tm) DC/DC Converter with Eco-mode(tm)DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORSTI customers also evaluated this product.

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