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Hi
The customer design with two BQ76930 cascaded for 20S, the 6th and 7th series may be damaged during the process of plugging and unplugging cables.
The failure screen as below:
Plug in and out the cables of J2 and J3 at the icon position. First connect the external cable of J3, and then connect the external cable of J2, the 6th and 7th series may be damaged.
Please help check it.
Thanks
Star
Hello Star,
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.
The section goes over some recommendations to ensure no damage during random cell attachment.
Best Regards,
Luis Hernandez Salomon