Part Number:DRV8320
Hi
Could you let me ask some question about connection of VM and VDRAIN?
Our customer are going to separate VM and VDRAIN because they would like to put the filter on VM.
They are concerned about UVLO when the ripple voltage is large at low input voltage.
If VM and VDRAIN is separated and the filter is added to VM ,it may have some voltage differences between VM and VDRAIN in some cases.
How much is that difference acceptable? I think it depends on external MOSFET. If it so, how do I calculate how much can it be acceptable?
Also if we add some filter on VM , what should we care about?
Best Regards,
Koji Hamamoto