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BQ24315 Status: ACTIVE

Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC


      
         
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 BQ24300 BQ24304 BQ24313 BQ24314 BQ24314A BQ24315BQ24316 
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  Programmable up to 1.5  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  Fault Indication  Fault indication   Fault Indication  Fault indication  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24314: Charger front end protection IC with 30V max vin and 5.85V OVP

Product Information

Features

  • Provides Protection for Three Variables:
    • Input Overvoltage, with Rapid Response in < 1 µs
    • User-Programmable Overcurrent with Current Limiting
    • Battery Overvoltage
  • 30V Maximum Input Voltage
  • Supports up to 1.5A Input Current
  • Robust Against False Triggering Due to Current Transients
  • Thermal Shutdown
  • Enable Input
  • Status Indication — Fault Condition
  • 5.5V LDO Mode Voltage Regulation
  • Available in Space-Saving Small 8 Lead 2mm ×2mm SON
  • APPLICATIONS
    • Mobile Phones and Smart Phones
    • PDAs
    • MP3 Players
    • Low-Power Handheld Devices
    • Bluetooth Headsets

PowerPAD Is a trademark of Texas Instruments

Description

The bq24313 and bq24315 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 output acts as a linear regulator. The output is regulated to VO(REG) for inputs between VO(REG) and the overvoltage threshold. If an input overvoltage condition occurs, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.

The IC can be controlled by a processor and also provides status information about fault conditions to the host.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
BQ24315DSGRACTIVE-40 to 1250.55 | 1kuSON (DSG) | 8 3000 | LARGE T&R
BQ24315DSGRG4ACTIVE-40 to 1250.55 | 1kuSON (DSG) | 8 3000 | LARGE T&R
BQ24315DSGTACTIVE-40 to 1250.65 | 1kuSON (DSG) | 8 250 | SMALL T&RPurchase Samples
BQ24315DSGTG4ACTIVE-40 to 1250.65 | 1kuSON (DSG) | 8 250 | SMALL T&RPurchase 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 12:05 PM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksBQ24315DSGR
WorldwideDigiKey 220
Mouser Electronics >1k
TI Lead Time*: 20 WeeksBQ24315DSGRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksBQ24315DSGT
AmericasAvnet 250
Newark 400
AsiaFarnell Asia 400
WPI 155
WorldwideDigiKey  Available
Mouser Electronics 250
TI Lead Time*: 20 WeeksBQ24315DSGTG4
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
BQ24315DSGR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24315DSGRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24315DSGT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
BQ24315DSGTG4 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 BQ24315 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
Evaluation Module for Li+ Charger Front End Protection ICBQ24315EVMTexas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
BQ24314 Charger front end protection IC with 30V max vin and 5.85V OVP BATTERY MANAGEMENT-CHARGER FRONT END PROTECTION TI customers also evaluated this product.

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