DRV8718-Q1: VDS overcurrent fault report

Hi Expert,

I am testing DRV8718-Q1 EVM and find GUI report VDS overcurrent fault. I only configurate two HBs but you can cee below that many channels report VDS overcurrent  fault. According to "8.3.8.8 MOSFET VDS Overcurrent Protection (VDS_OCP)" in d/s, it monitor  voltage across the VDS. But even during normal working, if PWM is 20kHz, the period is 50us. The duty cycle is 50%. So when high side is off and low side is on, it seems the H1 VDS overcurrent fault will still be triggered. Could you please explain the scheme of this. Thanks.

BR,

Elec Cheng