Hi team
My customer developed 50 units demo products with TLK110 as the Ethernet PHY. But after a period of operation, we found that 4pcs TLK110 are malfunctional out of the 50 units demo products. When we removed the failure TLK110 from the board and tested it, we found that AVDD3.3(Pin 22)is short to GND and PFBIN2(Pin37) is short to GND. And all the 4pcs failure parts have the same phenomenon.
So I just want to check with you is there any possible reason to damage Pin22 and Pin37 at the same time? Thanks.
Best regards,
Wayne