BQ24315 Status:ACTIVE

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

      
         
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Datasheet

Download - PDF Icon
  • Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC (bq24315.pdf, 1478 KB)
    26 Mar 2008 Download

 BQ24300 BQ24304 BQ24314 BQ24315BQ24316 
Input Voltage(Max)(V)30  30  30  30  30  
Input Over-Voltage Protection(V)10.5  10.5  5.85  5.85  6.80  
Input Over-Current Protection(A)0.3  0.3  Programmable up to 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  
Battery Over-Voltage Protection(Typ)(V)4.35  4.35  4.35  4.35  4.35  
Optional FunctionsReverse polarity protection  Reverse polarity protection  Fault indication  Fault Indication  Fault indication  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • BQ24380: Overvoltage and Overcurrent Protection IC and Li+ Charger Front End Protection IC with LDO Mode
  • BQ24314A: Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC
  • BQ24314: Charger front end protection IC with 30V max vin and 5.85V OVP
  • BQ29312: Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFE
  • UCC3911-1: 2-Cell Lithium-Ion Battery Protection IC W/Internal FET And Vov = 4.20V
  • BQ27350: Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge Technology

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 2×2 SON
  • APPLICATIONS
    • Mobile Phones and Smart Phones
    • PDAs
    • MP3 Players
    • Low-Power Handheld Devices
    • Bluetooth™ Headsets

Description

The bq24315 is a highly integrated circuit 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 of the bq24315 acts a linear regulator. The output is regulated to 5.5V for inputs between 5.5V 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

Price ($US)PackagingSamples
DeviceStatusTemp (oC)Price ($US) | 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

  TI Inventory Status Reported Distributor Inventory
BQ24315DSGRAs of 9:04 AM GMT, 05 Sep 2008As of 9:04 AM GMT, 05 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 2 Oct 6 Weeks AmericasDigiKey 410
  Mouser Electronics >1k
BQ24315DSGRG4As of 9:04 AM GMT, 05 Sep 2008As of 9:04 AM GMT, 05 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* >10k | 2 Oct 6 Weeks None Reported
View Distributors
   
BQ24315DSGTAs of 9:04 AM GMT, 05 Sep 2008As of 9:04 AM GMT, 05 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* 164 | 5 Sep 6 Weeks AmericasArrow 500
 >10k | 2 Oct Avnet 500
  Mouser Electronics 250
BQ24315DSGTG4As of 9:04 AM GMT, 05 Sep 2008As of 9:04 AM GMT, 05 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 >10k* 164 | 5 Sep 6 Weeks None Reported
View Distributors
   
 >10k | 2 Oct     
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
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

Datasheets

  • Overvoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection IC (bq24315.pdf, 1478 KB)
    26 Mar 2008 Download

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
Evaluation Module for Li+ Charger Front End Protection ICBQ24315EVMTexas InstrumentsDevelopment Boards/EVMs

 Alternative Products - Are similar to BQ24315
Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
BQ24380Overvoltage and Overcurrent Protection IC and Li+ Charger Front End Protection IC with LDO ModeTI customers also evaluated this product.
BQ24314AOvervoltage & Overcurrent Protection IC & Li+ Charger Front-End Protection ICTI customers also evaluated this product.
BQ24314Charger front end protection IC with 30V max vin and 5.85V OVPTI customers also evaluated this product.
 Complementary Products - Can be used with BQ24315
Customers Who Evaluated This Product Also Evaluated...
Part #NameProduct FamilyComments
BQ29312Two, Three and Four Cell Lithium or Lithium-Polymer Battery Protection AFEBATTERY MANAGEMENT-LITHIUM ION PROTECTIONTI customers also evaluated this product.
UCC3911-12-Cell Lithium-Ion Battery Protection IC W/Internal FET And Vov = 4.20VBATTERY MANAGEMENT-LITHIUM ION PROTECTIONTI customers also evaluated this product.
BQ27350Single Cell Li-Ion Battery Manager with Impedance Track Fuel Gauge TechnologyBATTERY MANAGEMENT-BATTERY FUEL GAUGESTI customers also evaluated this product.
BQ26500Complete Battery Fuel Gauge for One and Two Cell Li-Ion ApplicationsBATTERY MANAGEMENT-BATTERY FUEL GAUGESTI customers also evaluated this product.
BQ27500System-Side Impedance Track(TM) Fuel GaugeBATTERY MANAGEMENT-BATTERY FUEL GAUGESTI customers also evaluated this product.

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