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BQ24123 Status: ACTIVE

Synchronous Switch-Mode 2-cell Li-Ion Charger w/2A FET, enhanced EMI performance

      
         
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Datasheet

Download - PDF Icon
  • Single-Chip Switchmode, Li-Ion & Li-Polymer Charge Mgmt IC w/enhanced EMI Perf (Rev. G) (bq24123.pdf, 1165 KB)
    12 Aug 2008 Download

 BQ24120 BQ24123BQ24125 
# Series Cells1  1, 2  1, 2, 3  
Charge Current(Max)(A)2  2  2  
Charge Status Outputs2  2  2  
Control TopologySwitchmode  Switchmode  Switchmode  
Switching Frequency(kHz)1100  1100  1100  
Primary Charge Termination MethodMinimum Current  Minimum Current  Minimum Current  
Pin/Package20QFN  20QFN  20QFN  
Vin(Max)(V)20  20  20  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ2057C: Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V
  • TL431: Adjustable Precision Shunt Regulator
  • TPS63000: 96% Buck-Boost Converter with 1.8A Current Switches in 3x3 QFN
  • TPS3808G33: Low Quiescent Current, Programmable-Delay Supervisory Circuit

Product Information

Features

  • Enhanced EMI Performance
  • Integrated Power FETs For Up To 2-A Charge Rate
  • Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer Battery Packs
  • Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
  • High-Accuracy Voltage and Current Regulation
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Absolute Maximum Voltage Rating on IN and OUT Pins
  • Accurate High-Side Battery Current Sensing
  • Battery Temperature Monitoring
  • Automatic Sleep Mode for Low Power Consumption
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20 pin 3,5 mm x 4,5 mm QFN Package
  • APPLICATIONS
    • Handheld Products
    • Portable Media Players
    • Industrial and Medical Equipment
    • Portable Equipment
    • Portable DVD Players

bqSWITCHER, PowerPAD are trademarks of Texas Instruments.

Description

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24123RHLRACTIVE-40 to 852.70 | 100uQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24123RHLRG4ACTIVE-40 to 852.70 | 100uQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24123RHLTACTIVE-40 to 852.95 | 100uQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this Symbol
BQ24123RHLTG4ACTIVE-40 to 852.95 | 100uQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this Symbol

* 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
BQ24123RHLRAs of 9:15 AM GMT, 05 Oct 2008As of 9:15 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 31 Dec 6 Weeks None Reported
View Distributors		   
BQ24123RHLRG4As of 9:15 AM GMT, 05 Oct 2008As of 9:15 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 31 Dec 6 Weeks None Reported
View Distributors		   
BQ24123RHLTAs of 9:15 AM GMT, 05 Oct 2008As of 9:15 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1650* >10k | 26 Dec 6 Weeks AmericasMouser Electronics 390
  AsiaWPI 75
  EuropeArrow Southern Europe 500
BQ24123RHLTG4As of 9:15 AM GMT, 05 Oct 2008As of 9:15 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1650* >10k | 26 Dec 6 Weeks EuropeFarnell 862
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
BQ24123RHLR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24123RHLRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24123RHLT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24123RHLTG4 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

Datasheets

  • Single-Chip Switchmode, Li-Ion & Li-Polymer Charge Mgmt IC w/enhanced EMI Perf (Rev. G) (bq24123.pdf, 1165 KB)
    12 Aug 2008 Download

Application Notes

  • Drive High Current LEDs (slva265.htm, 8 KB)
    25 Jan 2007 Abstract
  • Implementations of Battery Charger and Power-Path Mgmt System Using bq241xx (slua376.htm, 8 KB)
    06 Jun 2006 Abstract

View Application Notes for Battery Charge Management

User Guides

  • Using the bq24120/3 (bqSwitcher)(TM) (Rev. A) (sluu236a.pdf, 346 KB)
    05 Nov 2007 Download

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
Temp Sense Designer SoftwareTEMPSENSE-SWTexas InstrumentsAnalysis Software
bq24123 Evaluation ModuleBQ24123EVM-002Texas InstrumentsDevelopment Boards/EVMs

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