Today, I tried to use my HIP4081 and something is not right, I bought 2 and one may already be dead, not sure, on #2, I applied 10v to pin 3, dis, and measured the voltage on all pins, starting with 1 I measured:13.00, 13.26, 10, 0, 0.2, 0.2, 13.24, 5.04, 5.04, 13.00 #11 - #14, 10.07 15&16, 13.24,#17-#20 10.07. I thought all output were supposed to go to 0.
I then removed the 10v to pin 3 and my measurements were:13.25, 13.26, .584, 0, .201, .201, 13.26, 5.03, 5.03, 13.25, #11 12.84, 11.39, 11.80, 11.81, 13.26, 13.26, 11.81, 11.80, 11.39, 12.83.
I then applied a PWM signal to pin 5, then pin 6 and looked at all outputs with an oscilloscope and all outputs had the same out put, it matched the input, but much less amplitude than the input and it was above the input. NOTE, when ever I applied power to the fets, they seemed to be shorting, but when I removed the driver from the circuit, no shorting, so all measurement were with no power applied to the FETs.
Question, do I need a gate to source resistors, how do I determine the value of the resistor attached to pins 8 & 9?,,The drawing shows a signal going to pin 6 and an inverted signal going to 5, does it need the inverted signal?
thanks for your help,
Jeff