BQ2014H 具有高速 1 线 (HDQ) 接口和 5 个 LED 驱动器的镍镉电池/镍氢电池电量监测计
BQ2014H 描述
The bq2014H NiCd/NiMH Gas Gauge IC is intended for batterypack or in-system installation to maintain an accurate record of available battery capacity. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery. Compensations for battery temperature, self-discharge, and rate of discharge are applied to the charge counter to provide available capacity information across a wide range of operating conditions. Battery capacity is automatically recalibrated, or "learned," in the course of a discharge cycle from full to empty.
Nominal available capacity may be directly indicated using a five-segment LED display
|
BQ2014H |
| Battery Capacity(Min)(mAh) |
500 |
| Battery Capacity(Max)(mAh) |
6000 |
| Communication Interface |
HDQ |
| Pin/Package |
16SOIC |
| Approx. Price (US$) |
4.60 | 1ku |
| Implementation |
Pack |
BQ2014H 特性
- Accurate measurement of available capacity in NiCd or NiMH batteries
- Low-cost battery management solution for pack integration
- As little as ½ square inch of PCB for complete circuit
- Low operating current (120µA typical)
- Less than 100nA of data retention current
- High-speed (5kb/s) single-wire communication interface (HDQ bus) for critical battery parameters
- Communication with an external charge controller such as the bq2004
- Direct drive of remaining capacity LEDs
- Automatic rate and temperature compensation of measurements
- 16-pin narrow SOIC
BQ2014H 芯片订购指南
| 器件 |
状态 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ2014HSN |
ACTIVE |
5.50 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| BQ2014HSNG4 |
ACTIVE |
5.50 | 1ku |
SOIC (D) | 16 |
40 | TUBE |
|
| BQ2014HSNTR |
ACTIVE |
4.60 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
| BQ2014HSNTRG4 |
ACTIVE |
4.60 | 1ku |
SOIC (D) | 16 |
2500 | LARGE T&R |
|
BQ2014H 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 |
| BQ2014HSN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2014HSN |
BQ2014HSN |
| BQ2014HSNG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2014HSNG4 |
BQ2014HSNG4 |
| BQ2014HSNTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2014HSNTR |
BQ2014HSNTR |
| BQ2014HSNTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ2014HSNTRG4 |
BQ2014HSNTRG4 |
BQ2014H 应用技术支持与电子电路设计开发资源下载
- BQ2014H 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)
BQ2014H 相关工具
