您好,请参考下面内容
There are limitations to random cell connection of this device. These are explained in Section 10 Random Cell Connection – Within Limits of the bq769x0 Family Top 10 Design Considerations application note. I would recommend to read this section…
Part Number: BQ76920 Other Parts Discussed in Thread: EV2400 刚设计的板子,上面使用了BQ7692003芯片做电源管理的相关功能,上电之后MCU通过对BQ76初始化,BQ76一直没有ACK响应,IIC总线使用逻辑分析仪捕获情况如下图所示
直接通过EV2400使用bq769X0 Evaluation Software软件读取也不能读到数据,读取显示如下图所示:
感觉BQ76没有工作起来,
板子电路设计原理图如下所示:
您好,瞬态可能太快而无法被 BQ76920 读取。 该器件将每 250ms 平均 50ms 的每个电池电压(请参阅 Table 1. Scheduling During Normal Mode Without Balancing of the Embedded Scheduler in Cell Battery Monitor of the bq769x0 application note for reference).
Other Parts Discussed in Thread: BQ76940EVM , BQ76940 , BQ78350 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1234298/bq78350-high-availability 器件型号…
您好, In the external P-Channel FET balancing circuitry, the diodes are connected wrongly. The anode should connect to the gate of the FET and not after the gate resistor. Typically N-Channel FETs are used for external cell balancing as these are more robust…