i want to perform transient analysis of the Low side Driver e.g. BTS3256D which has power 5W and is switching every 200 micro-seconds and the switching characteristics are a follows-
Case 1- 0-128 micro second
Power = 0.09 W
Case 2 - 128 - 200 micro second
Power = 0 W
but on setting these conditions for a total transient period of 400 micro seconds I am getting a constant temperature to be 30 deg celsius. It remains unchanged for the total time duration. Kindly help me to perform the transient of this component.