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BQ24314C 現行 過電壓和過電流保護 IC 和鋰離子充電器前端保護 IC Newer version of the device with improved reverse current protection

產品詳細資料

Rating Catalog Number of series cells (max) 1 Number of series cells (min) 1 Features Overcurrent protection, Overvoltage Function Charger Front-End Protection Operating current (typ) (µA) 400 Vin (max) (V) 30 Overvoltage protection 5.85 Operating temperature range (°C) -40 to 125 Battery overvoltage protection (min) (V) 4.35 Battery overvoltage protection (max) (V) 4.35
Rating Catalog Number of series cells (max) 1 Number of series cells (min) 1 Features Overcurrent protection, Overvoltage Function Charger Front-End Protection Operating current (typ) (µA) 400 Vin (max) (V) 30 Overvoltage protection 5.85 Operating temperature range (°C) -40 to 125 Battery overvoltage protection (min) (V) 4.35 Battery overvoltage protection (max) (V) 4.35
WSON (DSG) 8 4 mm² (2 mm × 2 mm)
  • Provides Protection for Three Variables:
    • Input Overvoltage, With Rapid Response in
      < 1 µs
    • User-Programmable Overcurrent With Current
      Limiting
    • Battery Overvoltage
  • Maximum Input Voltage of 30 V
  • 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 Lead 2 × 2
    WSON
  • Provides Protection for Three Variables:
    • Input Overvoltage, With Rapid Response in
      < 1 µs
    • User-Programmable Overcurrent With Current
      Limiting
    • Battery Overvoltage
  • Maximum Input Voltage of 30 V
  • 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 Lead 2 × 2
    WSON

The bq24314A device is a highly integrated circuit (IC) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the device 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 device also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.

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

The bq24314A device is a highly integrated circuit (IC) designed to provide protection to Li-ion batteries from failures of the charging circuit. The device continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the device 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 device also monitors its own die temperature and switches off if it exceeds 140°C. The input overcurrent threshold is user-programmable.

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

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 bq24314A Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC datasheet (Rev. A) PDF | HTML 2015/6/30

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BQ24314AEVM — BQ24314A 鋰離子充電器前端保護 IC 評估模組

The BQ24314A evaluation module is a complete charger module for evaluating a charger front-end protection and charger solution using the BQ24314A and BQ24080 devices. It is designed to deliver up to 700 mA of charge current to Li-ion or Li-polymer applications. The charger front-end protection (...)

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