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BQ24314A

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过压和过流保护 IC 和锂离子充电器前端保护 IC

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BQ24314C 正在供货 过压和过流保护 IC 及锂离子电池充电器前端保护 IC Newer version of the device with improved reverse current protection

BQ24314A

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产品详情

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 5.85 Operating temperature range (°C) -40 to 125 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 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 x 2
  • 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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类型 标题 下载最新的英语版本 日期
* 数据表 bq24314A Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC 数据表 (Rev. A) PDF | HTML 2015年 6月 30日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
EVM 用户指南 bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. B) 2016年 11月 4日

设计和开发

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评估板

BQ24314AEVM — BQ24314A 锂离子充电器前端保护 IC 评估模块

BQ24314A 评估模块是一个完整的充电器模块，用于评估采用 BQ24314A 和 BQ24080 器件的充电器前端保护和充电器解决方案。它旨在为锂离子或锂聚合物应用提供高达 700mA 的充电电流。根据设计，充电器前端保护电流为 1000mA。BQ24314A 可防止充电系统出现三类故障：当交流适配器无法调节电压时出现输入过压；当充电系统出现短路等故障时发生负载过流；以及电池过充。

用户指南: PDF
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WSON (DSG) 8 查看选项
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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