- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：电池管理 IC - 电池保护器
- 功能描述：过压和过流保护 IC 及锂离子电池充电器前端保护 IC
- 点击这里打开及下载BQ24314A的技术文档资料
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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.
- Provides Protection for Three Variables:
- Input Overvoltage, With Rapid Response in <1μs
- 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
- Function
- Charger Front-End Protection
- Number of series cells (Min)
- 1
- Number of series cells (Max)
- 1
- Features
- Overvoltage, Overcurrent protection
- Typical operating current (Typ) (uA)
- 400
- Rating
- Catalog
- Vin (Max) (V)
- 30
BQ24314A的完整型号有：BQ24314ADSGR、BQ24314ADSGT，以下是这些产品的关键参数及官网采购报价：
BQ24314ADSGR，工作温度：-40 to 125，封装：WSON (DSG)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ24314ADSGR的批量USD价格：.233（1000+）
BQ24314ADSGT，工作温度：-40 to 125，封装：WSON (DSG)-8，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ24314ADSGT的批量USD价格：.28（1000+）
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。
