BQ24350 具有 FET、6.17 输入 OVP 的过压和过流充电器前端保护 IC
BQ24350 描述
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.
|
BQ24350 |
BQ24351 |
BQ24352 |
| Input Voltage(Max)(V) |
30 |
30 |
30 |
| Input Over-Voltage Protection(V) |
6.17 |
10.5 |
7.1 |
| Input Over-Current Protection(A) |
1.2 |
1.2 |
1.2 |
| Battery Over-Voltage Protection(Max)(V) |
4.4 |
4.4 |
4.4 |
| Battery Over-Voltage Protection(Typ)(V) |
4.35 |
4.35 |
4.35 |
| Optional Functions |
5.5V LDO Output |
6.38V LDO Output |
5.5V LDO Output |
BQ24350 特性
- 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
BQ24350 芯片订购指南
| 器件 |
状态 |
温度 (oC) |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ24350DSGR |
ACTIVE |
-40 to 85 |
0.65 | 1ku |
WSON (DSG) | 8 |
3000 | LARGE T&R |
|
| BQ24350DSGT |
ACTIVE |
-40 to 85 |
0.75 | 1ku |
WSON (DSG) | 8 |
250 | SMALL T&R |
|
BQ24350 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| BQ24350DSGR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24350DSGR |
BQ24350DSGR |
| BQ24350DSGT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ24350DSGT |
BQ24350DSGT |
BQ24350 应用技术支持与电子电路设计开发资源下载
- BQ24350 数据资料 dataSheet 下载.PDF
- TI 德州仪器电池管理产品选型与价格 . xls
- 照明和显示屏电源选择指南 (PDF 1427 KB)
- QFN Layout Guidelines (PDF 1279 KB)
- 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- PowerPAD™ Made Easy (PDF 57 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
BQ24350 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| 用于锂离子充电器前端保护 IC 的 BQ24350 DSG EVM |
BQ24350EVM |
Texas Instruments |
开发电路板/EVM |
| BQ24350 评估模块 |
BQ24350EVM-171 |
Texas Instruments |
开发电路板/EVM |
| BQ24350 评估模块 |
BQ24350EVM-264 |
Texas Instruments |
开发电路板/EVM |
