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Not that I can think of. Driver chips have an undervoltage lockout to prevent partial drive of the MOSFET to stop the MOSFETs from getting damaged. I don't see any inherent reason why the driver chip itself would be damaged by anything but an overvoltage, overcurrent, or ringing (which would be ultimately result in in one of the former two).
Oh, this is just one thread in an ongoing series of threads for the same project. So yeah, we know he needs 100% duty cycle.