UCC28C44: how long is dead time limit

Hong

customer wants to know how long is the minimum dead time between turning off internal High side MOSFET and transfer to turn on the internal low side MOSFET .  shown as the picture.

Hong

customer wants to know if the -1.2V negative voltage spike is fully occurred in UCC28C44's internal deadtime interval ?

Link: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1429711/ucc28c44--1v-for-2ns-undershoot-on-out-pin/5517343#5517343;

Hong

Up to now, customer tried all ways you have suggested before, but the issue still is not solved. And customer still try to dig out the root cause about the -1.2V negative peak voltage, so they just wants to know the deadtime interval. If BU can't provide it, i will let customer know it.