BQ29311 3 节或 4 节锂离子电池保护 IC，配合 BQ2083/5 使用
|
BQ29311 |
| Cells Protected |
3, 4 |
| Protection FETs |
External |
| Shutdown Current(uA) |
1 |
| Pin/Package |
24TSSOP |
| Approx. Price (US$) |
1.00 | 1ku |
BQ29311 描述
The bq29311 is a three- or four-cell lithium-ion battery pack protection analog front end (AFE) IC that incorporates a 3.3-V 25-mA low-dropout regulator (LDO) and an I2C compatible interface to extract battery parameters such as cell voltages and control output status. Other parameters, such as overcurrent protection threshold and delay, can also be programmed into the bq29311 to increase the flexibility of the battery management system.
The bq29311 provides safety protection in overcurrent, short circuit, overvoltage, and undervoltage conditions via control from the battery management host. In overcurrent and short-circuit conditions the bq29311 can activate the FET drive as a secondary protection level. The communications interface allows the host to control and observe the current status of the protection, to set overcurrent levels for charge and discharge, to set the overcurrent blanking delay time, short-circuit threshold levels, and short-circuit blanking delay time, and to program for the VREG shutdown voltage and brownout-detection thresholds
BQ29311 特性
- 3- or 4-Cell Series Protection Control
- Autonomous Overcurrent and Short Circuit Protection
- Provides Individual Cell Voltages to Battery Management Host
- Integrated Cell Balancing Control
- I2C Compatible User Interface Allows Access to Battery Information
- User Control to Initiate Protection
- Integrated 3.3-V 25-mA LDO
- Programmable Shutdown and Brownout Control
- Provides Drive for Three External FETs
- Low Supply Current of 140 uA Typical
- Programmable Threshold and Delay for Short Circuit Current Protection
- Provides Drive for Three External FETs
- Can Directly Interface With bq2083/5 for Complete Battery Management Solution
- APPLICATIONS
- Notebook computer battery packs
- Test equipment
BQ29311 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 |
| BQ29311PW |
ACTIVE |
-25 to 85 |
1.20 | 1ku |
TSSOP (PW) | 24 |
60 | TUBE |
29311PW |
| BQ29311PWG4 |
ACTIVE |
-25 to 85 |
1.20 | 1ku |
TSSOP (PW) | 24 |
60 | TUBE |
29311PW |
| BQ29311PWR |
ACTIVE |
-25 to 85 |
1.00 | 1ku |
TSSOP (PW) | 24 |
2000 | LARGE T&R |
29311PW |
| BQ29311PWRG4 |
ACTIVE |
-25 to 85 |
1.00 | 1ku |
TSSOP (PW) | 24 |
2000 | LARGE T&R |
29311PW |
BQ29311 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 |
| BQ29311PW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29311PW |
BQ29311PW |
| BQ29311PWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29311PWG4 |
BQ29311PWG4 |
| BQ29311PWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29311PWR |
BQ29311PWR |
| BQ29311PWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29311PWRG4 |
BQ29311PWRG4 |
BQ29311 应用技术支持与电子电路设计开发资源下载
- BQ29311 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)
- PowerPADTM 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)
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