BQ24314A
- Provides Protection for Three Variables:
- Input Overvoltage, With Rapid Response in
< 1 µs - User-Programmable Overcurrent With Current
Limiting - Battery Overvoltage
- Input Overvoltage, With Rapid Response in
- 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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 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 | 2015-6-30 |
设计与开发
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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。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (DSG) | 8 | Ultra Librarian |
订购和质量
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