Product details


Function Charger Front-End Protection Number of series cells (Min) 1 Number of series cells (Max) 1 Features Overcurrent protection Typical operating current (Typ) (uA) 400 Rating Catalog Vin (Max) (V) 30 open-in-new Find other Battery protectors

Package | Pins | Size

VSON (DSJ) 12 12 mm² 3 x 4 WSON (DSG) 8 4 mm² 2 x 2 open-in-new Find other Battery protectors


  • Provides Protection for Three Variables:
    • Input Overvoltage, With Rapid Response in
      < 1 µs
    • User-Programmable Overcurrent With Current
    • Battery Overvoltage
  • 30-V Maximum Input Voltage
  • Supports up to 1.5-A Input Current
  • Robust Against False Triggering Due to Current
  • Thermal Shutdown
  • Enable Input
  • Status Indication – Fault Condition
  • Available in Space-Saving Small 8-Pin 2 × 2 SON
    and 12-Pin 4 × 3 SON Packages
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The bq24314 and bq24316 devices 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. In case of an input overvoltage condition, 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 becomes too hot. 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.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet bq2431x Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC datasheet (Rev. D) Apr. 29, 2016
User guide bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. B) Nov. 04, 2016
Application note How to Meet 24V Hot Plug-In Test for Charge Front-End bq243xx Jan. 02, 2008
Application note High Voltage Pulse Transient Safety Design fro bq243xx Dec. 04, 2007
User guide bq24314/6 DSJ EVM (HPA251) for Li+ Charger Front End Protection IC Aug. 20, 2007

Design & development

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CAD/CAE symbols

Package Pins Download
VSON (DSJ) 12 View options
WSON (DSG) 8 View options

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