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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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 BQ24100 BQ24103 BQ24103A BQ24104 BQ24105 BQ24108BQ24113 BQ24113A BQ24115 
# Series Cells1  1, 2  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  2  
Charge Status Outputs2  2  2  2  2  2  2  2  2  
Control TopologySwitchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  Switchmode  
Switching Frequency(kHz)1100  1100  1100  1100  1100  1100  1100  1100  1100  
Primary Charge Termination MethodMinimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  Host Controlled  Host Controlled  Host Controlled  
Pin/Package20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  20QFN  
Vin(Max)(V)20  20  20  20  20  20  20  20  20  
Battery Charge Voltage(V)4.2  4.2, 8.4  4.2, 8.4  4.2, 8.4  adjustable  4.2  4.2,8.4  4.2,8.4  adjustable  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

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
  • BQ24032A: Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V
  • TPS61061: 19V, 400mA Switch, 1MHz Boost Converter w/Brightness Control for White LED Power Supplies
  • TPS63031: High Efficient Single Inductor Buck-Boost Converter with 1-A Switches
  • TPS76433: Single Output LDO, 150mA, Fixed(3.3V), Low Noise, Low Quiescent Current

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
  • bq24105 Also for LiFePO4Battery (see Using bq24105 to Charge the LiFePO4 Battery)
  • 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

bqSWITCHER, PowerPAD are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners

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

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24108RHLRACTIVE-40 to 852.15 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24108RHLRG4ACTIVE-40 to 852.15 | 1kuQFN (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

Reported Distributor Inventory as of 12:07 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ24108RHLR
AmericasNewark >1k
AsiaFarnell Asia 38
EuropeFarnell 38
WorldwideMouser Electronics 767
TI Lead Time*: 20 WeeksBQ24108RHLRG4
None Reported
View Distributors
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** 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

Most useful technical documents for BQ24108 Help

Datasheet

Application Notes

View Application Notes for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
Temp Sense Designer SoftwareTEMPSENSE-SWTexas InstrumentsAnalysis Software
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
BQ24100 Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24103 Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cell BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24032A Dual Input Li-Ion Charger with Dynamic Power Path, Output regulated to 4.4V, Vbat 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24105 Standalone Synchronous Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1 to 3 Cells BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24115 Host-controlled Synchronous, Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1 to 3 cells BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2954 Switch-mode Li-Ion Charge Controller BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ2057C Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24113 Host-controlled Synchronous Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cell BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24081 1-cell Li-Ion Charger w/ 1-A FET, Timer Enable and Temperature Sensing BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24030 Dual Input Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 6V, Vbat 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS61061 19V, 400mA Switch, 1MHz Boost Converter w/Brightness Control for White LED Power Supplies LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.
TPS63031 High Efficient Single Inductor Buck-Boost Converter with 1-A Switches DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS TI customers also evaluated this product.
TPS76433 Single Output LDO, 150mA, Fixed(3.3V), Low Noise, Low Quiescent Current LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
BQ27541 Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration BATTERY MANAGEMENT-BATTERY FUEL GAUGES TI customers also evaluated this product.
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