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BQ24120 Status: ACTIVE

Synchronous Switch-Mode 1-cell Li-Ion Charger w/2A FET, enhanced EMI performance


      
         
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 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  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24100: Standalone Synchronous Switch-mode Li-Ion Charger w/2A FET in QFN-20, 1-Cell
  • BQ24125: Single Chip Switchmode Li-Ion and Li-Polymer Charge Management IC with Enhanced EMI Performance
  • BQ24123: Synchronous Switch-Mode 2-cell Li-Ion Charger w/2A FET, enhanced EMI performance
  • TPS2553: Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch

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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

View All Features in Datasheet

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.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24120RHLRACTIVE-40 to 852.15 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24120RHLRG4ACTIVE-40 to 852.15 | 1kuQFN (RHL) | 20 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24120RHLTACTIVE-40 to 852.35 | 1kuQFN (RHL) | 20 View 250 | SMALL T&R Download CAD Format for this Symbol
BQ24120RHLTG4ACTIVE-40 to 852.35 | 1kuQFN (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

Reported Distributor Inventory as of 12:15 PM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ24120RHLR
None Reported
View Distributors
TI Lead Time*: 20 WeeksBQ24120RHLRG4
None Reported
View Distributors
TI Lead Time*: 16 WeeksBQ24120RHLT
AsiaWPI 310
TI Lead Time*: 16 WeeksBQ24120RHLTG4
AsiaFarnell Asia 10
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
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

Most useful technical documents for BQ24120 Help

Datasheet

Application Notes

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
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.
BQ24125 Single Chip Switchmode Li-Ion and Li-Polymer Charge Management IC with Enhanced EMI Performance BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24123 Synchronous Switch-Mode 2-cell Li-Ion Charger w/2A FET, enhanced EMI performance BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
BQ24070 Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 4.4V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TPS2553 Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.

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