DRV8305-Q1: Float PWRGD Pin if MCU Watchdog Not Used in DRV8305N?

Hi Pengyu,

I looked into this and have the below response: 

• In the case of the PWRGD pin, it is actually used for at least two purposes: 
  
  • the first is the MCU watchdog feature, like mentioned
  • the second is that it is also used for VREG_UVLO protection in the VREG version of the device to prevent brown-out conditions on the VREG output regulator 

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.

• I'll check with my team on this to confirm 

Thanks and Best Regards,
Andrew