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BQ24108 Status:ACTIVE

Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell

      
         
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Datasheet

Download - PDF Icon
  • Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher) (Rev. M) (bq24108.pdf, 1099 KB)
    12 Aug 2008 Download

 BQ24100 BQ24103 BQ24103A BQ24105 BQ24108BQ24113 BQ24113A BQ24115 
# Series Cells1  1, 2  1, 2  1, 2, Multiple  1  1, 2  1, 2  1, 2, Multiple  
Charge Current(Max)(A)2  2  2  2  2  2  2  2  
Charge Status Outputs2  2  2  2  2  2  2  2  
Control TopologySwitchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  
Switching Frequency(kHz)1100  1100  1100  1100  1100  1100  1100  1100  
Primary Charge Termination MethodMinimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  Host Controlled  Host Controlled  Host Controlled  
Pin/Package20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  
Vin(Max)(V)20  20  20  20  20  20  20  20  
Battery Charge Voltage(V)4.2  4.2, 8.4  4.2, 8.4  adjustable  4.2  4.2,8.4  4.2,8.4  adjustable  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24100: Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell
  • BQ24103: Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cell
  • BQ24103A: Standalone Synchronous Switch-mode Li-Ion Charger with 2A FET
  • TPS62200: Adjustable, 300-mA, 95% Efficient Step-Down Converter in SOT-23
  • TPS40200: Wide Input Nonsynchronous Buck DC/DC Controller
  • TL431B: Adjustable Precision Shunt Regulator

More Related Products

Product Information

Features

  • Ideal For Highly Efficient Charger Designs For Single-, Two- or Three-Cell Li-Ion and Li-Polymer Battery Packs
  • Integrated Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
  • Integrated Power FETs For Up To 2-A Charge Rate
  • High-Accuracy Voltage and Current Regulation
  • Available In Both Stand-Alone (Built-In Charge Management and Control) and System-Controlled (Under System Command) Versions
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Maximum Voltage Rating on IN and OUT Pins
  • High-Side Battery Current Sensing
  • Battery Temperature Monitoring
  • Automatic Sleep Mode for Low Power Consumption
  • System-Controlled Version Can Be Used In NiMH and NiCd Applications
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20-Pin, 3,5 mm × 4,5 mm QFN Package
  • APPLICATIONS
    • Handheld Products
    • Portable Media Players
    • Industrial and Medical Equipment
    • Portable Equipment

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 system-controlled version provides additional inputs for full charge management under system control.

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

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24108RHLRACTIVE-40 to 852.70 | 100uQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24108RHLRG4ACTIVE-40 to 852.70 | 100uQFN (RHL) | 20 View 3000 | LARGE 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
BQ24108RHLRAs of 9:03 AM GMT, 29 Aug 2008As of 9:03 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2973* 27 | 29 Aug 6 Weeks AmericasArrow >1k
 >10k | 29 Oct DigiKey 157
  Mouser Electronics >1k
  Newark >1k
  EuropeFarnell >1k
BQ24108RHLRG4As of 9:03 AM GMT, 29 Aug 2008As of 9:03 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 2973* 27 | 29 Aug 6 Weeks None Reported
View Distributors		   
 >10k | 29 Oct     
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
BQ24108RHLR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24108RHLRG4 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

  • Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher) (Rev. M) (bq24108.pdf, 1099 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
  • Power Dissipation Analysis & Circuit Design for Sync Switching Battery Charger (slua345.htm, 9 KB)
    31 May 2005 Abstract

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

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BQ24103AStandalone Synchronous Switch-mode Li-Ion Charger with 2A FETTI customers also evaluated this product.
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BQ24105Standalone Synchronous Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1 to 3 Cells TI customers also evaluated this product.
BQ24113Host-controlled Synchronous Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cellTI customers also evaluated this product.
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