BQ24350
- Robust Protection
- Input Over-Voltage Protection
- Input Over-Current Protection
- Accurate Battery Over-Voltage Protection
- Thermal Shutdown
- Output Short-Circuit Protection
- Integrated Charging FET
- LDO Mode Operation
- Current Limited Power Supply for Host Controller
- Soft-Start to Prevent Inrush Currents
- Soft-Stop to Prevent Voltage Spikes
- 30V Maximum Input Voltage
- Supports Up to 1A Load Current
- Small 2mm × 2mm 8pin SON Package
- APPLICATIONS
- Mobile Phones
- Low-Power Handheld Devices
The bq24350/2 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage and the battery voltage. In case of an input over-voltage condition, the IC will turn off the internal power FET after a blanking time. If the battery voltage rises to unsafe levels during charging process, power is removed from the system. If the input current exceeds the over current threshold for a limited time, the IC will turn off the output power. The integrated charging FET can regulate the charge voltage and current according to the control from the host. The device can also provide a voltage source with over voltage and over current protection for host controller.
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 | Over-Voltage and Over-Current Charger Front-End Protection IC With FET 数据表 (Rev. A) | 2009-6-5 | |||
| 用户指南 | bq2435x DSG EVM (HPA398) for Li-Ion Charger Front-End Protection IC | 2009-6-17 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TIDA-00033 — 具有 FET 的过压和过流充电器前端保护 IC 参考设计
该参考设计是一款高度集成的电路解决方案，旨在保护锂离子电池免受充电电路故障的影响。该 IC 设计可持续监控输入电压和电池电压。如果发生输入过压的情况，则该 IC 将在消隐时间后关闭内部电源 FET。如果在充电过程中电池电压增加到不安全水平，则将移除系统电源。如果输入电流在有限时间内超出过流阈值，则该 IC 设计将关闭输出电源。集成式充电 FET 可根据主机的控制来调节充电电压和电流。该设计还可提供为主机控制器提供带过压和过流保护功能的电压源。
| 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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