Part Number: BQ76940 Other Parts Discussed in Thread: BQSTUDIO 最近客户客退回来的不良品中通过我司上位机查看数据显示单体压差偏大超过了40mV,内部针对压差问题进行了排查:
1、前后对比测量电芯电压及AFE BQ76940 RC滤波电容进IC电压单体电压正常,一致性正常。
2、单独进入BQ界面(通过EV2300 bqstudio)确认压差大单体电压,发现压差大异常单体电压BQ界面显示电压与实测RC滤波进入IC引脚电压差异较大>25mV…
您好,请参考数据手册8.3.1.3.4 Alert
In order to clear the ALERT signal, the source bit in the SYS_STAT register must first be cleared by writing a “1” to that bit. This will cause an automatic clear of the ALERT pin once all bits are cleared.
如果不能清除可能是硬件有问题或者noise…
您好,Although there technically isn't a limit, we typically recommend limiting this to two AFEs in series. Stacking is not an integrated feature, so more careful considerations must be taken.
If you want to have more stacked, we often recommend using…
您好,
Divide the CC voltage by the sense resistor value, or: Current = CC value × CC LSB value / sense resistor. Be sure to convert units where needed. Remember that the CC is an integrating converter, and the calculation will give an ‘average’ current…
Part Number: BQ78350-R1 Other Parts Discussed in Thread: BQ78350 , BQ76200 , BQ76940 , EV2400
不良现象:bq76940+BQ78350+BQ76200+STM32F103CBT6+CANbus 14s高边同口应用方案,用户使用过程中出现BQ数据乱码情况,导致无法充放电,重新更新BQ78350固件后功能正常。
我想了解下什么情况下会导致BQ78350 Data Flash数据乱码,如果对BQ进行出厂加密是否可以规避数据乱码异常问题…