Here're some questions from the customer may need your help:
1) Power supply to DRV8323H is 18 V. Is the VCP inside the chip also around 18V? GHx and GLX switch MOS tubes according to the input PWM wave, are their output voltage also 18V, i.e. VGS=18V?
2) What is the purpose of SHX controlling the three phase UVW of the motor and input back to the motor drive chip? Just as a VDS overcurrent monitor with VDRAIN or is there any other purpose?
3) Gate drive current IDRIVE is also output when opening the MOS tube, and is it applied to the MOS tube together? But the MOS tube is opened with Vgs(th), is it also related to the current?
Could you help check this case? Thanks.