BQ77PL900 5 至 10 节锂离子电池保护和 AFE
BQ77PL900 描述
The bq77PL900 is a five to ten series cell lithium-ion battery pack protector. The integrated I2C communications interface allows the bq77PL900 also to be as an analog front end (AFE) for a Host controller. Two LDOs, one 5 V/25 mA and one 3.3 V/25 mA, are also included and may be used to power a host controller or support circuitry.
The bq77PL900 integrates a voltage translation system to extract battery parameters such as individual cell voltages and charge/discharge current. Variables such as voltage protection thresholds and detection delay times can be programmed by using the internal EEPROM.
The bq77PL900 can act as a stand-alone self-contained battery protection system (stand-alone mode). It can alternatively be combined with a host microcontroller to offer fuel gauge or other battery management capabilities to the host system (host-control mode).
|
BQ77PL900 |
| Cells Protected |
5,6,7,8,9,10 |
| Overvoltage Threshold(V) |
4.5 |
| Protection FETs |
External |
| Pin/Package |
48SSOP |
| Approx. Price (US$) |
2.95 | 1ku |
BQ77PL900 特性
- 5, 6, 7, 8, 9, or 10 Series-Cell Primary Protection
- PMOS FET Drive for Charge and Discharge FETs
- Capable of Operation with 1-mΩ Sense Resistor
- Supply Voltage Range from 7 V to 50 V
- Low Supply Current of 450 µA Typical
- Integrated 5 V 25-mA LDO
- Integrated 3.3 V 25-mA LDO
- Stand-Alone Mode
- Pack Protection Control and Recovery
- Individual Cell Monitoring
- Integrated Cell Balancing
- Programmable Threshold and Delay Time for OvervoltageUndervoltage Overcurrent in Discharge Short Circuit in Discharge
- Fixed Overtemperature Protection
- Host Control Mode
- I2C Interface to Host Controller
- Analog Interface for Host Cell Measurement and System Charge/Discharge Current
- Host-Controlled Protection Recovery
- Host-Controlled Cell Balancing
- APPLICATIONS
BQ77PL900 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 |
| BQ77PL900DL |
ACTIVE |
-40 to 100 |
3.55 | 1ku |
SSOP (DL) | 48 |
25 | TUBE |
BQ77PL900 |
| BQ77PL900DLG4 |
ACTIVE |
-40 to 100 |
3.55 | 1ku |
SSOP (DL) | 48 |
25 | TUBE |
BQ77PL900 |
| BQ77PL900DLR |
ACTIVE |
-40 to 100 |
2.95 | 1ku |
SSOP (DL) | 48 |
1000 | LARGE T&R |
BQ77PL900 |
| BQ77PL900DLRG4 |
ACTIVE |
-40 to 100 |
2.95 | 1ku |
SSOP (DL) | 48 |
1000 | LARGE T&R |
BQ77PL900 |
BQ77PL900 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 |
| BQ77PL900DL |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ77PL900DL |
BQ77PL900DL |
| BQ77PL900DLG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ77PL900DLG4 |
BQ77PL900DLG4 |
| BQ77PL900DLR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ77PL900DLR |
BQ77PL900DLR |
| BQ77PL900DLRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ77PL900DLRG4 |
BQ77PL900DLRG4 |
BQ77PL900 应用技术支持与电子电路设计开发资源下载
- BQ77PL900 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)
BQ77PL900 相关工具
