BQ24202 Status: ACTIVE

500-mA, 4.2-V Li-Ion Charger for Current-Limited App. w/Charge Status in MSOP-8

      
         
Alert me about changes<br/>to this product

Datasheet

Download - PDF Icon
  • Single-Chip Li-Ion & Li_Pol Charge Mgmt IC for Current-Limited Application (Rev. C) (bq24202.pdf, 901 KB)
    19 Mar 2008 Download

 BQ24200 BQ24201 BQ24202BQ24203 BQ24204 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

Customers Who Evaluated This Product Also Evaluated

  • BQ24204: 500-mA, 4.2-V Li-Ion Charger for Current-Limited App. in MSOP-8
  • BQ2057C: Low Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2V
  • REF3040: 4.096V 50ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference
  • TPS79301: Single Output LDO, 200mA, Adj.(1.2 to 5.5V), High PSRR, Low Noise
  • TPS76330: Single Output LDO, 150mA, Fixed(3.0V), Low Quiescent Current, Thermal Protection

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. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination.

Other standard features include an automatic sleep mode activated when VCC falls below the battery voltage falls below the VRCH threshold.

In addition to the standard features, the core product provides two additional enhancements: temperature monitoring and status display. The temperaturesense circuit continuously measures battery temperature using an external thermistor and inhibits charge until the battery temperature is within the user-defined thresholds. The STAT pin indicates three conditions of operation of the charger. These conditions are charge-in-progress, charge complete, and fault. This output can be used to drive an LED or an interface to a microcontroller.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
BQ24202DGNACTIVE-40 to 851.10 | 100uMSOP-PowerPAD (DGN) | 8 View 80 | TUBE Download CAD Format for this Symbol
BQ24202DGNG4ACTIVE-40 to 851.10 | 100uMSOP-PowerPAD (DGN) | 8 View 80 | TUBE Download CAD Format for this Symbol
BQ24202DGNRACTIVE-40 to 851.10 | 100uMSOP-PowerPAD (DGN) | 8 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
BQ24202DGNRG4ACTIVE-40 to 851.10 | 100uMSOP-PowerPAD (DGN) | 8 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase 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

  TI Inventory Status Reported Distributor Inventory
BQ24202DGNAs of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 9720* 16 | 19 Nov 1 Weeks AmericasDigiKey 118
  Mouser Electronics 377
  Newark 308
  Rochester Electronics 157
  AsiaWPI 306
  EuropeEBV Elektronik 80
  Farnell 276
BQ24202DGNG4As of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 9720* 16 | 19 Nov 1 Weeks None Reported
View Distributors
   
BQ24202DGNRAs of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 713 | 26 Nov 6 Weeks AmericasRochester Electronics >1k
 4362 | 23 Dec AsiaWPI 2
 487 | 20 Jan     
 >10k | 27 Jan     
BQ24202DGNRG4As of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 713 | 26 Nov 6 Weeks None Reported
View Distributors
   
 4362 | 23 Dec     
 487 | 20 Jan     
 >10k | 27 Jan     
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
BQ24202DGN RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ24202DGNG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ24202DGNR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
BQ24202DGNRG4 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

Datasheets

  • Single-Chip Li-Ion & Li_Pol Charge Mgmt IC for Current-Limited Application (Rev. C) (bq24202.pdf, 901 KB)
    19 Mar 2008 Download

Application Notes

View Application Notes for Battery Charge Management

User Guides

  • bq2420x Single-Chip Li-Ion/Li-Pol Charge Management IC for Current-Limited Appli (sluu107.htm, 8 KB)
    10 Dec 2001 Abstract

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

 Alternative Products - Are similar to BQ24202
Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
BQ24204500-mA, 4.2-V Li-Ion Charger for Current-Limited App. in MSOP-8TI customers also evaluated this product.
BQ2057CLow Dropout Linear 1-cell Li-Ion Charge Controller with AutoCompTM, 4.2VTI customers also evaluated this product.
 Complementary Products - Can be used with BQ24202
Customers Who Evaluated This Product Also Evaluated...
Part #NameProduct FamilyComments
REF30404.096V 50ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage ReferenceREFERENCES-SERIES VOLTAGE REFERENCESTI customers also evaluated this product.
TPS79301Single Output LDO, 200mA, Adj.(1.2 to 5.5V), High PSRR, Low NoiseLINEAR REGULATORS-SINGLE CHANNEL LDOTI customers also evaluated this product.
TPS76330Single Output LDO, 150mA, Fixed(3.0V), Low Quiescent Current, Thermal ProtectionLINEAR REGULATORS-SINGLE CHANNEL LDOTI customers also evaluated this product.
UCC3895BiCMOS Advanced Phase Shift PWM ControllerAC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERSTI customers also evaluated this product.

Related End Equipments

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support