BQ29312A 二、三、四节锂离子或锂聚合物电池保护 AFE
BQ29312A 描述
The bq29312A is a 2-, 3-, or 4-cell lithium-ion battery pack protection analog front end (AFE) IC that incorporates a 3.3-V, 25-mA low-dropout regulator (LDO). The bq29312A also integrates an I2C compat- ible interface to extract battery parameters such as cell voltages and control output status. Other par- ameters such as current protection thresholds and delays can be programmed into the bq29312A to increase the flexibility of the battery management system.
The bq29312A provides safety protection for over- charge, overload, short-circuit, overvoltage, and undervoltage conditions with the battery management host. In overload and short-circuit conditions, the bq29312A turns the FET drive off autonomously dependant on the internal configuration setting
|
BQ29312A |
| Cells Protected |
2, 3, 4 |
| Protection FETs |
External |
| Shutdown Current(uA) |
1 |
| Pin/Package |
24TSSOP, 24VQFN |
| Approx. Price (US$) |
1.00 | 1ku |
BQ29312A 特性
- 2-, 3-, or 4-Cell Series Protection Control
- Can Directly Interface With the bq2084 Gas Gauges
- Provides Individual Cell Voltages and Battery Voltage to Battery Management Host
- Integrated Cell Balancing Drive
- I2C Compatible User Interface Allows Access to Battery Information
- Programmable Threshold and Delay for Overload and Short Circuit During Charge and Discharge
- System Alert Interrupt Output
- Host Control Can Initiate Sleep Power Mode and Ship Mode
- Integrated 3.3-V, 25-mA LDO
- Supply Voltage Range From 4.5 V to 25 V
- Low Supply Current of 60-µA Typical
- bq29312A is 100% specification compatible with the bq29312
- APPLICATIONS
- Notebook PCs
- Medical and Test Equipment
- Portable Instrumentation
BQ29312A 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 |
| BQ29312APW |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
TSSOP (PW) | 24 |
60 | TUBE |
29312APW |
| BQ29312APWG4 |
ACTIVE |
-40 to 85 |
1.20 | 1ku |
TSSOP (PW) | 24 |
60 | TUBE |
29312APW |
| BQ29312APWR |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
TSSOP (PW) | 24 |
2000 | LARGE T&R |
29312APW |
| BQ29312APWRG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
TSSOP (PW) | 24 |
2000 | LARGE T&R |
29312APW |
| BQ29312ARTHR |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
VQFN (RTH) | 24 |
3000 | LARGE T&R |
29312
A |
| BQ29312ARTHRG4 |
ACTIVE |
-40 to 85 |
1.00 | 1ku |
VQFN (RTH) | 24 |
3000 | LARGE T&R |
29312
A |
BQ29312A 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 |
| BQ29312APW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29312APW |
BQ29312APW |
| BQ29312APWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29312APWG4 |
BQ29312APWG4 |
| BQ29312APWR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29312APWR |
BQ29312APWR |
| BQ29312APWRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ29312APWRG4 |
BQ29312APWRG4 |
| BQ29312ARTHR |
Green (RoHS & no Sb/Br) |
CU NIPDAUAG |
Level-2-260C-1 YEAR |
BQ29312ARTHR |
BQ29312ARTHR |
| BQ29312ARTHRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAUAG |
Level-2-260C-1 YEAR |
BQ29312ARTHRG4 |
BQ29312ARTHRG4 |
BQ29312A 应用技术支持与电子电路设计开发资源下载
- BQ29312A 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)
BQ29312A 相关工具
| 名称 |
型号 |
工具/软件类型 |
| BQ20Z80EVM-001 用于锂电池组的阻抗 Track(TM) 电量监测 |
BQ20Z80EVM-001 |
开发电路板/EVM |
