Ground connection on MP1918 -Gate Driver

Motor Drivers/Sensors
1

I have a question regarding the ground connections in the gate driver component (we discussed this topic in the past).

I have 3 power stages on my board as shown in the illustration below—this is one out of the 3 stages.

Do I need to make the ground connection between AGND and PGND on each of the drivers, and should the connection between the grounds be close to each of the gate drivers?

2

Hi Yakib,

Thank you for posting to the MPS forum. You must connect AGND and PGND on each of the drivers for the best performance. The connection is recommended to be done with a 0 Ohm resistor placed between the two grounds on the bottom layer. An image from page 14 of the datasheet is attached below for your reference.

image
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Best regards,

Lyell