BQ27520-G1 具有集成 LDO 的系统端 Impedance Track(TM) 电量监测
BQ27520-G1 描述
The Texas Instruments bq27520-G1 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 bq27520-G1 resides on the system’s main board and manages an embedded battery (non-removable) or a removable battery pack.
The bq27520-G1 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), temperature (°C) and state of health (%).
Battery fuel gauging with the bq27520-G1 requires only PACK+ (P+), PACK– (P–), and Thermistor (T) connections to a removable battery pack or embedded battery circuit
|
BQ27520-G1 |
| Communication Interface |
I2C |
| # Series Cells |
1 |
| Pin/Package |
15DSBGA |
| Approx. Price (US$) |
1.50 | 1ku |
| Operating Temperature Range(°C) |
-40 to 85 |
| Implementation |
System |
BQ27520-G1 特性
- Battery Fuel Gauge for 1-Series Li-Ion Applications
- Resides on System Main Board
- Works With Embedded or Removable Battery Packs
- Uses PACK+, PACK–, and T Battery Terminals
- 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
- Current Data Logging Buffer
- 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 m
or Less)
- 400-kHz I2CTM Interface for Connection to System
Microcontroller Port
- In a 15-Pin NanoFreeTM (CSP) Packaging
- APPLICATIONS
BQ27520-G1 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 |
| BQ27520YZFR-G1 |
ACTIVE |
-40 to 85 |
1.50 | 1ku |
DSBGA (YZF) | 15 |
3000 | LARGE T&R |
|
| BQ27520YZFT-G1 |
ACTIVE |
-40 to 85 |
1.75 | 1ku |
DSBGA (YZF) | 15 |
250 | SMALL T&R |
|
BQ27520-G1 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 |
| BQ27520YZFR-G1 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
BQ27520YZFR-G1 |
BQ27520YZFR-G1 |
| BQ27520YZFT-G1 |
Green (RoHS & no Sb/Br) |
SNAGCU |
Level-1-260C-UNLIM |
BQ27520YZFT-G1 |
BQ27520YZFT-G1 |
BQ27520-G1 应用技术支持与电子电路设计开发资源下载
- BQ27520-G1 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)
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