BQ27541 用于电池组集成的单节锂离子电池电量监测
BQ27541 描述
The Texas Instruments bq27541 Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development for accurate battery fuel gauging. The bq27541 resides within the battery pack or on the system's main-board with an embedded battery (nonremovable).
The bq27541 uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).
The bq27541 also features integrated support for secure battery pack authentication, using the SHA-1/HMAC authentication algorithm.
|
BQ27541 |
| Battery Capacity(Min)(mAh) |
800 |
| Battery Capacity(Max)(mAh) |
6000 |
| Communication Interface |
HDQ, I2C |
| # Series Cells |
1 |
| Pin/Package |
12SON |
| Approx. Price (US$) |
1.45 | 1ku |
| Operating Temperature Range(°C) |
-40 to 85 |
| Implementation |
Pack |
BQ27541 特性
- Battery Fuel Gauge for 1-Series Li-Ion Applications
- Microcontroller Peripheral Provides:
- Accurate Battery Fuel Gauging
- Internal Temperature Sensor for System Temperature Reporting
- SHA-1/HMAC Authentication
- 96 Bytes of Non-Volatile Scratch Pad FLASH
- Battery Fuel Gauging Based on Patented Impedance Track Technology
- Models Battery Discharge Curve for Accurate Time-To-Empty Predictions
- Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies
- Low-Value Sense Resistor (5 mΩ to 20 mΩ)
- HDQ and I2C Interface Formats for Communication with Host System
- Small 12-pin 2,5 mm × 4 mm SON Package
- APPLICATIONS
- Smartphones
- PDAs
- Digital Still and Video Cameras
- Handheld Terminals
- MP3 or Multimedia Players
BQ27541 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| BQ27541DRZR |
ACTIVE |
-40 to 85 |
1.45 | 1ku |
SON (DRZ) | 12 |
3000 | LARGE T&R |
|
| BQ27541DRZT |
ACTIVE |
-40 to 85 |
1.70 | 1ku |
SON (DRZ) | 12 |
250 | SMALL T&R |
|
BQ27541 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 |
| BQ27541DRZR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ27541DRZR |
BQ27541DRZR |
| BQ27541DRZT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ27541DRZT |
BQ27541DRZT |
BQ27541 应用技术支持与电子电路设计开发资源下载
- BQ27541 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)
- PowerPADTM 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)
BQ27541 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| BQ27541 单节电池 Impedance TrackTM 技术评估模块 |
BQ27541EVM |
Texas Instruments |
开发电路板/EVM |
| 电量监测计化学物更新器 |
GASGAUGECHEM-SW |
Texas Instruments |
分析软件 |