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BQ24203 Status: ACTIVE

500-mA, 4.1-V Li-Ion Charger for Current-Limited App. w/Charge Status in MSOP-8


      
         
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 BQ24200 BQ24201 BQ24202 BQ24203BQ24204 BQ24205 
# Series Cells1  1  1  1  1  1  
Charge Current(Max)(A)0.5  0.5  0.5  0.5  0.5  0.5  
Charge Status Outputs1  1  1  1  0  0  
Control TopologyCurrent Limited  Current Limited  Current Limited  Current Limited  Current Limited  Current Limited  
Primary Charge Termination MethodMinimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  Minimum Current  
Pin/Package8MSOP-PowerPAD  8MSOP-PowerPAD  8MSOP-PowerPAD  8MSOP-PowerPAD  8MSOP-PowerPAD  8MSOP-PowerPAD  
Vin(Max)(V)16.5  16.5  16.5  16.5  16.5  16.5  
Battery Charge Voltage(V)4.2  4.1  4.2  4.1  4.2  4.1  
Optional FunctionsSTAT and TS  STAT and TS  STAT  STAT    
 SamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventory

Product Information

Features

  • Designed Specifically to Work With Current-Limited Wall Supplies
  • Ideal for Low Dropout Charger Design for Single-Cell Li-Ion Packs With Coke or Graphite Anodes
  • Integrated PowerFET for 500 mA
  • Integrated Voltage Regulation With 0.5% Accuracy
  • Battery Insertion and Removal Detection
  • Charge Termination by Minimum Current and Time
  • Pre-Charge Conditioning With Safety Timer
  • Sleep Mode for Low-Power Consumption
  • Charge Status Output for LED or Host Processor Interface Indicates
  • Charge-in-Progress, Charge Completion, and Fault Conditions
  • Optional Temperature Monitoring Before and During Charge
  • Small, 8-Pin Power-Pad MSOP Package

Description

The bq2420x series are simple Li-Ion linear charge management devices targeted at low-cost and space limited charger applications. The bq2420x series offer integrated powerFET, high-accuracy voltage regulation, temperature monitoring, charge status, and charge termination, in a single monolithic device.

The bq2420x is designed to work with a current-limited wall-mount transformer and therefore does not provide any current regulation. However, these devices offer a fixed internal current limit to prevent damage to the internal powerFET. A time-limited pre-conditioning phase is provided to condition deeply discharged cells. Once the battery reaches the charge voltage, the high accuracy voltage regulation loop takes over and completes the charge cycle.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24203DGNACTIVE-40 to 851.10 | 1kuMSOP-PowerPAD (DGN) | 8 View 80 | TUBE Download CAD Format for this Symbol
BQ24203DGNG4ACTIVE-40 to 851.10 | 1kuMSOP-PowerPAD (DGN) | 8 View 80 | TUBE 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 12:13 PM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 14 WeeksBQ24203DGN
AmericasNewark 309
Rochester Electronics >1k
AsiaWPI 154
WorldwideDigiKey 160
Mouser Electronics 231
TI Lead Time*: 14 WeeksBQ24203DGNG4
EuropeEBV Elektronik 40
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
BQ24203DGN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ24203DGNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* 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 BQ24203 Help

Datasheet

User Guides

View User Guides for Battery Charge Management

Tools & Software

NamePart # Company Tool / Software Type
Temp Sense Designer SoftwareTEMPSENSE-SWTexas InstrumentsAnalysis Software
BQ24200 500-mA Charger Evaluation Module for Current-limited ApplicationsBQ24200EVMTexas InstrumentsDevelopment Boards/EVMs
Quick Search Selection Tool for Battery ChargersBATTERY_CHARGERS_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

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