DRV8350R: Question of GHx signal Quailty

Tool/software:

Hello! Dear. TI Team,

We are currently using the DRV8350RH gate driver IC and are experiencing two issues.

We have configured the MOSFETs for driving a 3-phase motor as shown below, and we are applying a snubber circuit.

First, we measured the VGS of the high-side MOSFET using a differential probe, and the measured waveform is attached.

1. The VGS (GHx) waveform of the high-side MOSFET appears to be a square wave, but the positive edge section shows a slight slew rate. However, the VGS (GLx) of the low-side MOSFET is a perfect square wave with no slew rate.
   We would like to know if it is normal for only the high-side MOSFET’s VGS (GHx) waveform to have a slight slew rate in the positive edge section, and why this slew region occurs.

2. When zooming in on the positive edge section of the high-side MOSFET’s VGS (GHx) waveform (which has the slew rate), we observe a small spark-like noise.
   We would like to know possible methods to eliminate this phenomenon, the reasons why it occurs, and what side effects it may cause if it persists.

Thank you, as always, for your kind support.

Best regards,