Other Parts Discussed in Thread: DRV8350
Hi team,
For DRV8305N, if MCU watchdog is not used, can customer just float PWRGD pin? Will this cause any problem to the device since PWRGD pin has pullup to VCC?
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Hi team,
For DRV8305N, if MCU watchdog is not used, can customer just float PWRGD pin? Will this cause any problem to the device since PWRGD pin has pullup to VCC?
Hi Pengyu,
I'll look into this and will try to give you a response today/tomorrow after reviewing some information
Thanks and Best Regards,
Andrew
Hi Pengyu,
I looked into this and have the below response:
In the case where you are using DRV8350N, the 'N' version doesn't have VREG - and instead has a basic voltage reference (VREF) instead
This means neither of the two purposes above apply, and PWRGD might be ok to float.
Thanks and Best Regards,
Andrew
Hi Andrew,
Is below confirmed?
This means neither of the two purposes above apply, and PWRGD might be ok to float.
Hi Pengyu,
Yes - got an answer today from the team, and thank you for reminding me.
The input I received was that it should be fine to float the PWRGD pin in your case, as it is simply an open drain output and does not have any secondary functions.
Thanks and Best Regards,
Andrew