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BQ24109 Status: ACTIVE

Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher)


      
         
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 BQ24100 BQ24109
# Series Cells1  1  
Charge Current(Max)(A)2  2  
Charge Status Outputs2  2  
Control TopologySwitchmode  Switchmode  
Switching Frequency(kHz)1100  1100  
Primary Charge Termination MethodMinimum Current  Host Controlled  
Pin/Package20QFN  20QFN  
Vin(Max)(V)20  20  
Battery Charge Voltage(V)4.2  4.2  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24080: 1-cell Li-Ion Charger w/ 1-A FET, AC Present and Charge Enable
  • BQ24104: Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher)
  • BQ24113: Host-controlled Synchronous Switch-Mode Li-Ion Charger w/2A FET in QFN-20, 1- or 2-cell

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
BQ24109RHLRACTIVE-40 to 1252.15 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24109RHLRG4ACTIVE-40 to 1252.15 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R 
BQ24109RHLTACTIVE-40 to 1252.40 | 1kuQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples
BQ24109RHLTG4ACTIVE-40 to 1252.40 | 1kuQFN (RHL) | 20 View 250 | SMALL T&R Purchase 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

Reported Distributor Inventory as of 12:07 PM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksBQ24109RHLR
WorldwideDigiKey >1k
Mouser Electronics >1k
TI Lead Time*: 4 WeeksBQ24109RHLRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ24109RHLT
AmericasAvnet 250
Rochester Electronics 250
WorldwideDigiKey  Available
Mouser Electronics 50
TI Lead Time*: 20 WeeksBQ24109RHLTG4
WorldwideDigiKey  Available
View all Distributors  

** 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
BQ24109RHLR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24109RHLRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24109RHLT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24109RHLTG4 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 BQ24109 Help

Datasheet

Tools & Software

NamePart # Company Tool / Software Type
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
BQ24080 1-cell Li-Ion Charger w/ 1-A FET, AC Present and Charge Enable BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24104 Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher) 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.
BQ24087 750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24052 800mA, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection, Rntc=100k BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24055 800mA, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection and PG BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
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.
BQ24103A Standalone Synchronous Switch-mode Li-Ion Charger with 2A FET BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24113A Host-Controlled Synchronous Swithc-Mode Li-Ion Charger w/2A FET, 1 or 2 Cell BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24088 750 mA Single Chip Li-Ion/Li-Pol Charge Management IC with Thermal Regulation BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.

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