BQ27505-J4 系统端 Impedance Track™ 电量监测
BQ27505-J4 描述
The Texas Instruments bq27505-J4 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 micro-controller firmware development. The bq27505-J4 resides on the system’s main board and manages an embedded battery (nonremovable) or a removable battery pack.
The bq27505-J4 uses the patented Impedance Track algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min), battery voltage (mV), temperature (°C) and state of health(%).
Battery fuel gauging with the bq27505-J4 requires only PACK+ (P+), PACK– (P–), and Thermistor (T) connections to a removable battery pack or embedded battery circuit
|
BQ27505-J4 |
| Communication Interface |
I2C |
| # Series Cells |
1 |
| Pin/Package |
12DSBGA |
| Approx. Price (US$) |
1.40 | 1ku |
| Operating Temperature Range(°C) |
-40 to 85 |
| Implementation |
System |
BQ27505-J4 特性
- Battery Fuel Gauge for 1-Series Li-Ion Applications
- Resides on System Main Board
- Works With Embedded or Removable Battery Packs
- Microcontroller Peripheral Provides:
- Accurate Battery Fuel Gauging
- Internal Temperature Sensor for Battery Temperature Reporting
- Battery Low Interrupt Warning
- Battery Insertion Indicator
- Configurable Level of State of Charge (SOC) Interrupts
- State of Health Indicator
- 96 Bytes of Non-Volatile Scratch-Pad FLASH
- Battery Fuel Gauge Based on Patented Impedance Track 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 mΩ or Less)
- 400-kHz I2C Interface for Connection to System Microcontroller Port
- In a 12-Pin NanoFree (CSP) Packaging
- APPLICATIONS
- Smartphones and PDAs
- Digital Still and Video Cameras
BQ27505-J4 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 |
| BQ27505YZGR-J4 |
ACTIVE |
-40 to 85 |
1.40 | 1ku |
DSBGA (YZG) | 12 |
3000 | LARGE T&R |
BQ27505 |
| BQ27505YZGT-J4 |
ACTIVE |
-40 to 85 |
1.65 | 1ku |
DSBGA (YZG) | 12 |
250 | SMALL T&R |
BQ27505 |
BQ27505-J4 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 |
| BQ27505YZGR-J4 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-2-260C-1 YEAR |
BQ27505YZGR-J4 |
BQ27505YZGR-J4 |
| BQ27505YZGT-J4 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-2-260C-1 YEAR |
BQ27505YZGT-J4 |
BQ27505YZGT-J4 |
BQ27505-J4 应用技术支持与电子电路设计开发资源下载
- BQ27505-J4 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)
