BQ2018 具有高速 1 引线接口 (HDQ) 的多化合物充电/放电计数器
BQ2018 描述
The bq2018 is a low-cost charge/discharge counter peripheral packaged in an 8-pin TSSOP or SOIC. It works with an intelligent host controller, providing state-of-charge information for rechargeable batteries.
The bq2018 measures the voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery pack ground contact. By using the accumulated counts in the charge, discharge, and self-discharge registers, an intelligent host controller can determine battery state-of-charge information. To improve accuracy, an offset count register is available. The system host controller is responsible for the register maintenance by resetting the charge in/out and self-discharge registers as needed
|
BQ2018 |
| Communication Interface |
HDQ |
| Pin/Package |
8SOIC, 8TSSOP |
| Approx. Price (US$) |
2.35 | 1ku |
| Operating Temperature Range(°C) |
-20 to 70 |
| Implementation |
Pack |
BQ2018 特性
- Multifunction charge/discharge counter
- Resolves signals less than 12.5uV
- Internal offset calibration improves accuracy
- 1024 bits of NVRAM configured as 128 x 8
- Internal temperature sensor for self-discharge estimation
- Single-wire serial interface
- Dual operating modes:
- Operating: <80uA
- Sleep: <10uA
- REG output for low-cost microregulation
- Internal timebase eliminates external components
- 8-pin TSSOP or SOIC allows battery pack integration
BQ2018 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 |
| BQ2018SN-E1 |
ACTIVE |
-20 to 70 |
2.80 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| BQ2018SN-E1TR |
ACTIVE |
-20 to 70 |
2.35 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
| BQ2018SN-E1TRG4 |
ACTIVE |
-20 to 70 |
2.35 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
| BQ2018TS-E1 |
ACTIVE |
-20 to 70 |
2.80 | 1ku |
TSSOP (PW) | 8 |
150 | TUBE |
|
| BQ2018TS-E1TR |
ACTIVE |
-20 to 70 |
2.35 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
|
| BQ2018TS-E1TRG4 |
ACTIVE |
-20 to 70 |
2.35 | 1ku |
TSSOP (PW) | 8 |
2000 | LARGE T&R |
|
BQ2018 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 |
| BQ2018SN-E1 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ2018SN-E1 |
BQ2018SN-E1 |
| BQ2018SN-E1TR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ2018SN-E1TR |
BQ2018SN-E1TR |
| BQ2018SN-E1TRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
BQ2018SN-E1TRG4 |
BQ2018SN-E1TRG4 |
| BQ2018TS-E1 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2018TS-E1 |
BQ2018TS-E1 |
| BQ2018TS-E1TR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2018TS-E1TR |
BQ2018TS-E1TR |
| BQ2018TS-E1TRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2018TS-E1TRG4 |
BQ2018TS-E1TRG4 |
BQ2018 应用技术支持与电子电路设计开发资源下载
- BQ2018 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)
BQ2018 相关工具
