I tryed to build a 3 phase stepper driver with the HIP4082 but stopped trying because too many ic's got defective during test. I used isolated floating supplies for the highside driver. Under low load conditions it worked ok but with steppers connected and normal load of 3A I did not got it working properly. I tryed all the protection methods I found but still not a stable driver so I switched back too Nmos / Pmos fets and transitor driverstages.
I did not have the proper measuring equipment to find out the real reason why the chips broke. But searching the net I found a lot off problems with this driver chip.