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clear gifBQ24120, Status:ACTIVE
Synchronous Switch-Mode 1-cell Li-Ion Charger w/2A FET, enhanced EMI performance
 
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Product Features and DescriptionFeaturesRequest Free SamplesSamplesTechnical Documents: app notes, user guides, models, and product bulletinsTechnical Documents
Quality: Product Contents, MTBF/FIT Rate and Moisture SensitivityQuality & Pb-Free DataPrice and Packaging InformationPricing/PackagingDownload Application NotesApplication Notes
related productsRelated ProductsInventory, Leadtime, and AvailabilityInventoryModels: BSDL, IBIS, or SPICESimulation Models
Tools & Software: EVMs, CCStudio, and developerTools & Software Download CAD Design ToolsSymbols/FootprintsAccess Reference DesignsReference Designs

 Datasheet
Download Datasheet
Single-Chip Switchmode, Li-Ion & Li-Polymer Charge Mgmt IC w/enhanced EMI Perf (Rev. F) (bq24120.pdf, 1161 KB)
06 Jun 2008 Download

BQ24120BQ24123 BQ24125 
# 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  
Release Date10-MAR-2006  10-MAR-2006  10-DEC-2007  
 SamplesSamplesSamples
 InventoryInventoryInventory

Product Information
Back to TopFeatures
  • 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
Back to TopDescription

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.
Analog eLab(TM) Design Center

Customers Who Evaluated This Product Also Evaluated...

These Alternative Products:

  • BQ2057W: Low Dropout Linear 2-cell Li-I...
  • BQ24751A: Multi-Cell Synchronous Switch-...

These Complementary Products:

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Pricing/Packaging/CAD Design Tools/Samples
Back to TopPricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Budget Price
($US) | QTY		Industry Standard
(TI Pkg) | Pins		Top Side MarkingStandard Pack Quantity | Package CarrierSymbolsSamples
BQ24120RHLRACTIVE-40 to 852.70 | 100uQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24120RHLRG4ACTIVE-40 to 852.70 | 100uQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24120RHLTACTIVE-40 to 852.95 | 100uQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this SymbolRequest Free Samples
BQ24120RHLTG4ACTIVE-40 to 852.95 | 100uQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this SymbolRequest Free 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
Back to TopTI Inventory StatusReported Distributor Inventory
BQ24120RHLRAs of 9:03 AM GMT, 6 Aug 2008As of 9:03 AM GMT, 6 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 4130* >10k | 11 Nov 6 Weeks None Reported
View Distributors		  
BQ24120RHLRG4As of 9:03 AM GMT, 6 Aug 2008As of 9:03 AM GMT, 6 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 4130* >10k | 11 Nov 6 Weeks None Reported
View Distributors		  
BQ24120RHLTAs of 9:03 AM GMT, 6 Aug 2008As of 9:03 AM GMT, 6 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* 322 | 6 Aug 6 Weeks AmericasDigiKey 673 Buy Now
 3974 | 12 Sep AsiaWPI 135 Buy Now
 >10k | 10 Nov    
BQ24120RHLTG4As of 9:03 AM GMT, 6 Aug 2008As of 9:03 AM GMT, 6 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* 322 | 6 Aug 6 Weeks EuropeFarnell 335 Buy Now
 3974 | 12 Sep    
 >10k | 10 Nov    
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
Back to TopProduct ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
BQ24120RHLR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24120RHLRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24120RHLT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24120RHLTG4 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
Back to TopDatasheets
Single-Chip Switchmode, Li-Ion & Li-Polymer Charge Mgmt IC w/enhanced EMI Perf (Rev. F) (bq24120.pdf, 1161 KB)
06 Jun 2008 Download
Back to TopApplication 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
Back to TopUser 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
Back to Top Name Part # Company Tool / Software Type
Temp Sense Designer SoftwareTEMPSENSE-SWTexas InstrumentsAnalysis Software

Related Products
Back to Top Alternative Products - Are similar to BQ24120
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Part #Name Comments
BQ2057WLow Dropout Linear 2-cell Li-Ion Charge Controller with AutoCompTM, 8.4VTI customers also evaluated this product.
BQ24751AMulti-Cell Synchronous Switch-mode Charger with System Power Selector with Low IqTI customers also evaluated this product.
Back to Top Complementary Products - Can be used with BQ24120
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