DRV8343-Q1: Do we have reference circuit design for estimating BEMF using a BEMF comparator?

Hi team,

Per we talked, my customer plan to use DRV8343-Q1 and need to sensor BEMF. They choose the way that estimate BEMF by using a BEMF comparator. Do we have reference design for this? Here are some questions:

• For the BEMF comparator, is there any special spec requirement for the comparator? Do we have a recommendation?
• For their project, delta connection is used which means they cannot detect the zero point voltage. Do you have similar BEMF estimation design reference for delta connection?

Thanks!