Texas Instruments bq35100电池电量计和EOS监控器
Texas Instruments bq35100电池电量计和EOS监控器为不可充电锂电池提供高度可配置的电量计量，电池无需强制放电。 结构确保无需优化，获得专利的TI计量算法支持可更换电池。 它们还通过采用GAUGE ENABLE (GE)引脚的主机控制实现具有超低平均功耗的精确结果。 电池计量功能使用电压、电流和温度信息来提供健康状态(SOH)和服务终止(EOS)数据。 只需对bq35100器件供电足够长时间就可收集数据和进行计算，以支持所选算法和系统所需的更新频率。
特性
- Fuel gauge and battery diagnostics for flow meter applications predict end-of-service or early battery failure
- Supports lithium thionyl chloride (Li-SOCl2) and lithium manganese dioxide (Li-MnO2) chemistry batteries
- Accurate voltage, temperature, current, and coulomb counter measurements that report battery health and service life
- State-of-health (SOH) algorithm for Li-MnO2
- End-of-service (EOS algorithm for Li-SOCl2)
- Coulomb accumulation (ACC) algorithm for all battery types
- Ultra-low average power consumption to maximize battery run time
- Gauge enabled through host-controlled periodic updates
- State-of-health (SOH) ~ 0.06µA
- End-of-service (EOS) ~ 0.35µA
- Coulomb accumulation (ACC) diagnostic updates ~ 0.3µA
- System interaction capabilities
- I2C host communication, providing battery parameter and status access
- Configurable host interrupt
- Battery information data logging options for in operation diagnostics and failure analysis
- SHA-1 authentication to help prevent counterfeit battery use
应用
- Smart metering
- Door access control
- Smoke/gas detection
- Building automation
- IoT, including a sensor node
- Asset tracking
Simplified Schematic
Related Development Tool
Texas Instruments BQ35100EVM-795 一次性锂电池评估模块
可用于评估 bq35100 电量检测和 EOS 监控算法的功能。
发布日期: 2016-11-30
| 更新日期: 2022-03-11