I have this device on an application board for RS-485 communication with SM470 MCU. It was tested at ~205C ambient, RTD on the board reads ~206C. But the first device stopped working after ~75 hours. The data sheet says recommended TA of 210C, as the highest temperature.
Then, the device was replaced with another SN65HVD11-HT device. And it's running for more than 100 hours so far without any problems.
I want to know how long this device should work at TA of 205C. Any comments are greatly appreciated.
Do I need to send the device back to TI.