DRV8847: how long should nSleep low signal last for IC to detect

Tool/software:

Hi team,

My customer is using DRV8847, and they want to use nSLEEP to reset. They are asking how long should the nSLEEP low signal last for IC to detect and enter sleep mode.

I saw a tSLEEP in the datasheet, and the tSLEEP time must elapse before the device goes to sleep mode. Does this mean that nSLEEP low signal should last for at least tSLEEP time for IC to detect? Or can the time be shorter than this value?

Best Regards,

Kelly