Hi, BQ25720 support team
I would like to know if Buck Converter correctly works when HS FET is configured to 2-series as follows.
Regards,
Tamio
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi, BQ25720 support team
I would like to know if Buck Converter correctly works when HS FET is configured to 2-series as follows.
Regards,
Tamio
Hi Tamio,
In theory, yes but we have never tested this configuration. Just curious why you need 2 FETs?
Regards,
Jeff
Hi, Jeff,
When the high-side FET of Buck was broken as a short mode, the input voltage is supplied to VSYS. At that tome, the input voltage of system VR may be over the absolute maximum input voltage.
To avoid this situation, I would like to change HS FET from 1 singale FET to 2-seriesl FETs.
Thanks
Tamio