BQ2040 符合多化合物智能电池系统 (SBS) 1.0 的电量监测计，具有 4 个 LED 驱动器
BQ2040 描述
The bq2040 Gas Gauge IC With SMBus Interface is intended for battery-pack or in-system installation to maintain an accurate record of available battery charge. The bq2040 directly supports capacity monitoring for NiCd, NiMH, and Li-Ion battery chemistries.
The bq2040 uses the System Management Bus v1.0 (SMBus) protocol and supports the Smart Battery Data (SBData) commands. The bq2040 also supports the SBData charge control functions. Battery state-of-charge, remaining capacity, remaining time, and chemistry are available over the serial link. Battery-charge state can be directly indicated using a four-segment LED display to graphically depict battery full-to-empty in 25% increments.
The bq2040 estimates battery self-discharge based on an internal timer and temperature sensor and user-programmable rate information stored in external EEPROM
|
BQ2040 |
| Battery Capacity(Min)(mAh) |
800 |
| Battery Capacity(Max)(mAh) |
10000 |
| Communication Interface |
SMBus |
| Pin/Package |
16SOIC |
| Approx. Price (US$) |
3.85 | 1ku |
| Operating Temperature Range(°C) |
0 to 70 |
| Implementation |
Pack |
BQ2040 特性
- Provides accurate measurement of available charge in NiCd, NiMH, and Li-Ion batteries
- Supports SBS v1.0 data set and two-wire interface
- Monitors charge FET in Li-Ion pack protection circuit
- Designed for battery pack integration
- Low operating current
- Complete circuit can fit on less than 3/4 square inch of PCB space
- Supports SBS charge control commands for NiCd, NiMH, and Li-Ion
- Drives a four-segment LED display for remaining capacity indication
- 16-pin narrow SOIC
BQ2040 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 |
| BQ2040SN-C408 |
ACTIVE |
0 to 70 |
4.60 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| BQ2040SN-C408G4 |
ACTIVE |
0 to 70 |
4.60 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| BQ2040SN-C408TR |
ACTIVE |
0 to 70 |
3.85 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| BQ2040SN-C408TRG4 |
ACTIVE |
0 to 70 |
3.85 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| BQ2040SN-D111 |
ACTIVE |
0 to 70 |
4.60 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| BQ2040SN-D111G4 |
ACTIVE |
0 to 70 |
4.60 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| BQ2040SN-D111TR |
ACTIVE |
0 to 70 |
3.85 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| BQ2040SN-D111TRG4 |
ACTIVE |
0 to 70 |
3.85 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
BQ2040 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 |
| BQ2040SN-C408 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-C408 |
BQ2040SN-C408 |
| BQ2040SN-C408G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-C408G4 |
BQ2040SN-C408G4 |
| BQ2040SN-C408TR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-C408TR |
BQ2040SN-C408TR |
| BQ2040SN-C408TRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-C408TRG4 |
BQ2040SN-C408TRG4 |
| BQ2040SN-D111 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-D111 |
BQ2040SN-D111 |
| BQ2040SN-D111G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-D111G4 |
BQ2040SN-D111G4 |
| BQ2040SN-D111TR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-D111TR |
BQ2040SN-D111TR |
| BQ2040SN-D111TRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2040SN-D111TRG4 |
BQ2040SN-D111TRG4 |
BQ2040 应用技术支持与电子电路设计开发资源下载
- BQ2040 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)
BQ2040 相关工具
| 名称 |
型号 |
工具/软件类型 |
| EV2200 PC 接口板 |
EV2200 |
开发电路板/EVM |
| 用于 10.8V 镍氢电池的 BQ2040 评估套件 |
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