Hi. I have been using TPD1E05U06QDPYRQ1 in our design. they have been working all the time until a batch of PCBs we received (same revision) had shorts. We used a thermal camera and realized that the ESD diodes were the culprit. When we remove the ESD diodes the board would work. I decided to remove the ESD diode and put it on a breakout board and test it's characteristics. When I apply 5V on the "I/O" pad and return path on the GND line, my power supply would go into OCP and the voltage on the PSU would drop to 0.8V. It almost acted like the diode was being forward biased when in reverse bias. So I decided to switch around the connections. I was able to go all the way up to around 8V before it started conducting. at this point it really looked like the cathode mark that indicated the I/O pad was on the wrong side. I've never seen this before and maybe I am doing something wrong. I have two questions:
1) Is this something that has happened before? Where the marking was place on the wrong side?
2) If not, is my test setup correct? Am I doing something wrong?
Thank you,
JP
