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Akkuschutz

BQ24316

AKTIV

Frontend-Schutz-IC für Ladegeräte mit max. 30 V Vin und 6,8 V Überstromschutz

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Datenblatt

BQ24316

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Function Charger Front-End Protection Number of series cells (min) 1 Number of series cells (max) 1 Features Overcurrent protection, Overvoltage Operating current (typ) (µA) 400 Rating Catalog Vin (max) (V) 30 Overvoltage protection 6.8 Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 4.35 Battery overvoltage protection (max) (V) 4.35
Function Charger Front-End Protection Number of series cells (min) 1 Number of series cells (max) 1 Features Overcurrent protection, Overvoltage Operating current (typ) (µA) 400 Rating Catalog Vin (max) (V) 30 Overvoltage protection 6.8 Operating temperature range (°C) -40 to 85 Battery overvoltage protection (min) (V) 4.35 Battery overvoltage protection (max) (V) 4.35
VSON (DSJ) 12 12 mm² 4 x 3 WSON (DSG) 8 4 mm² 2 x 2
  • Provides Protection for Three Variables:
    • Input Overvoltage, With Rapid Response in
      < 1 µs
    • User-Programmable Overcurrent With Current
      Limiting
    • Battery Overvoltage
  • 30-V Maximum Input Voltage
  • Supports up to 1.5-A Input Current
  • Robust Against False Triggering Due to Current
    Transients
  • 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
  • Provides Protection for Three Variables:
    • Input Overvoltage, With Rapid Response in
      < 1 µs
    • User-Programmable Overcurrent With Current
      Limiting
    • Battery Overvoltage
  • 30-V Maximum Input Voltage
  • Supports up to 1.5-A Input Current
  • Robust Against False Triggering Due to Current
    Transients
  • 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

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.

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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Technische Dokumentation

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Typ Titel Datum
* Data sheet bq2431x Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC datasheet (Rev. D) PDF | HTML 29 Apr 2016
EVM User's guide bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. B) 04 Nov 2016
Application note How to Meet 24V Hot Plug-In Test for Charge Front-End bq243xx 02 Jan 2008
Application note High Voltage Pulse Transient Safety Design fro bq243xx 04 Dez 2007
EVM User's guide bq24314/6 DSJ EVM (HPA251) for Li+ Charger Front End Protection IC 20 Aug 2007

Design und Entwicklung

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Gehäuse Pins Herunterladen
VSON (DSJ) 12 Optionen anzeigen
WSON (DSG) 8 Optionen anzeigen
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Bestellen & Qualität

Beinhaltete Information:
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  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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