CSD17585F5: CSD17585F5 Vgs maximum value

Part Number:CSD17585F5

Hello Team,

by the CSD17585F5 is written that the maximum Vgs should be +20V. On other MOS datasheet from other vendors I do see that they do specify max +-20Vgs for an N channel MOS.

What does really mean -20V within the spec of an N MOS?

Below Vth is off so below 0 would be off. Does the CSD17585F5 support -20V without getting broken?

Can I retrieve that info from the datasheet?

Is it a different way to specify the device or it has to do with the internal structure and diodes?

Thanks,

SunSet