BQ27501 采用 Impedance TrackTM 技术的完整系统端电池电量监测
BQ27501 描述
The Texas Instruments bq27501 system-side 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. The bq27501 resides on the system main board, and manages an embedded battery (non-removable) or a removable battery pack.
The device uses the patented Impedance TrackTM algoritm for fuel gauging, and provides information such as remaiing battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).
The device works with identification resistors in battery packs to gauge batteries of different fundamental chemistries and/or different rated capacities
|
BQ27500-V130 |
BQ27501 |
| Communication Interface |
I2C |
I2C |
| # Series Cells |
1 |
1 |
| Pin/Package |
12DSBGA, 12SON |
12SON |
| Approx. Price (US$) |
1.35 | 1ku |
1.35 | 1ku |
| Operating Temperature Range(°C) |
-40 to 85 |
-40 to 85 |
| Implementation |
System |
System |
BQ27501 特性
- Battery Fuel Gauge for 1-Series Li-Ion Applications
- Resides on System Main Board
- Works With Embedded or Removable Battery Packs
- Works With Battery ID Resistor in Battery Pack
- Microcontroller Peripheral Provides:
- Accurate Battery Fuel Gauging
- Internal Temperature Sensor for System Temperature Reporting
- Battery Low Interrupt Warning
- Battery Insertion Indicator
- Battery ID Detection
- 96 Bytes of Non-Volatile Scratch-Pad FLASH
- Battery Fuel Gauge Based on Patented Impedance TrackTM Technology
- Models the 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 (10 or Less)
- I2CTM Interface for Connection to System Microcontroller Port
- 12-Pin 2,5-mm x 4-mm SON Package
- applications
BQ27501 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 |
| BQ27501DRZR |
ACTIVE |
-40 to 85 |
1.35 | 1ku |
SON (DRZ) | 12 |
3000 | LARGE T&R |
|
| BQ27501DRZT |
ACTIVE |
-40 to 85 |
1.55 | 1ku |
SON (DRZ) | 12 |
250 | SMALL T&R |
|
BQ27501 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 |
| BQ27501DRZR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ27501DRZR |
BQ27501DRZR |
| BQ27501DRZT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
BQ27501DRZT |
BQ27501DRZT |
BQ27501 应用技术支持与电子电路设计开发资源下载
- BQ27501 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)
BQ27501 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| BQ27501EVM 系统端单节 Impedance TrackTM 技术评估模块 |
BQ27501EVM |
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 |