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BQ24300 Status: ACTIVE

Charger front end protection IC with 30V max Vin and 5.5V LDO output

      
         
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Datasheet

Download - PDF Icon
  • Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC (Rev. B) (bq24300.pdf, 883 KB)
    20 Feb 2008 Download

 BQ24300BQ24304 BQ24305 BQ24314 BQ24314A BQ24315 BQ24316 
Input Voltage(Max)(V)30  30  30  30  30  30  30  
Input Over-Voltage Protection(V)10.5  10.5  10.5  5.85  5.85  5.85  6.80  
Input Over-Current Protection(A)0.3  0.3  0.3  Programmable up to 1.5  1.5  1.5  Programmable up to 1.5  
Battery Over-Voltage Protection(Max)(V)4.4  4.4  4.4  4.4  4.4  4.4  4.4  
Battery Over-Voltage Protection(Typ)(V)4.35  4.35  4.35  4.35  4.35  4.35  4.35  
Optional FunctionsReverse polarity protection  Reverse polarity protection  Reverse polarity protection  Fault indication   Fault Indication  Fault indication  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24305: Overvoltage and Overcurrent Protection IC and Li+ Charger Front End Protection IC

Product Information

Features

  • Provides Protection for Three Variables:
    • Input Overvoltage
    • Input Overcurrent with Current Limiting
    • Battery Overvoltage
  • 30V Maximum Input Voltage
  • Optional Input Reverse Polarity Protection
  • High Immunity Against False Triggering Due to Voltage Spikes
  • Robust Against False Triggering Due to Current Transients
  • Thermal Shutdown
  • Enable Function
  • Small 2 mm × 2 mm 8-Pin SON Package
  • LDO Mode Voltage Regulation Options:
    • 5.5V on bq24300
    • 4.5V on bq24304
    • 5.0V on bq24305
  • APPLICATIONS
    • Bluetooth Headsets
    • Low-Power Handheld Devices

PowerPAD Is a trademark of Texas Instruments

Description

The bq24300 and bq24304 are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. The device operates like a linear regulator: for voltages up to the Input Overvoltage threshold, the output is held at 5.5V (bq24300), 5.0V (bq24305) or 4.5V (bq24304). In case of an input overvoltage condition, if the overvoltage condition persists for more than a few microseconds, the IC removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the current to a safe value for a blanking duration before turning the switch off. Additionally, the IC also monitors its own die temperature and switches off if it becomes too hot.

The IC also offers optional protection against reverse voltage at the input with an external P-channel MOSFET.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSymbolsSamples
BQ24300DSGRACTIVE0 to 1250.70 | 100uSON (DSG) | 8 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24300DSGRG4ACTIVE0 to 1250.70 | 100uSON (DSG) | 8 3000 | LARGE T&R Download CAD Format for this Symbol
BQ24300DSGTACTIVE0 to 1250.80 | 100uSON (DSG) | 8 250 | SMALL T&R Download CAD Format for this SymbolPurchase Samples
BQ24300DSGTG4ACTIVE0 to 1250.80 | 100uSON (DSG) | 8 250 | SMALL 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
BQ24300DSGRAs of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 26 Nov 8 Weeks AmericasDigiKey >1k
  Rochester Electronics >1k
BQ24300DSGRG4As of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 26 Nov 8 Weeks None Reported
View Distributors		   
BQ24300DSGTAs of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 4194 | 22 Dec 6 Weeks None Reported
View Distributors		   
 >10k | 29 Dec     
BQ24300DSGTG4As of 10:15 AM GMT, 19 Nov 2008As of 10:15 AM GMT, 19 Nov 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 4194 | 22 Dec 6 Weeks None Reported
View Distributors		   
 >10k | 29 Dec     
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
BQ24300DSGR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24300DSGRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24300DSGT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24300DSGTG4 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

Datasheets

  • Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC (Rev. B) (bq24300.pdf, 883 KB)
    20 Feb 2008 Download

Application Notes

  • Battery-charger front-end IC improves charging-system safety (slyt294.pdf, 199 KB)
    16 May 2008 Download
  • Q2 2008 Issue Analog Applications Journal  (slyt291.pdf, 1329 KB)
    16 May 2008 Download
  • How to Meet 24V Hot Plug-In Test for Charge Front-End bq243xx (slua446.htm, 8 KB)
    02 Jan 2008 Abstract
  • High Voltage Pulse Transient Safety Design fro bq243xx (slua442.htm, 8 KB)
    04 Dec 2007 Abstract
  • Extending Single Input Charger to Dual Input Applications (slua437.htm, 8 KB)
    07 Sep 2007 Abstract

User Guides

  • bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. A) (sluu291a.htm, 8 KB)
    01 Apr 2008 Abstract

Tools & Software

NamePart # Company Tool / Software Type
BQ24300 Evaluation Module for Li+ Charger and Front End Protection ICBQ24300EVMTexas InstrumentsDevelopment Boards/EVMs

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