Hello,
Good day!
We have a RS485 communication system and we are usign the ST485B, but we recently had an issue with a couple of PCBs(attached picture)
We are using an external DC/DC converter as 5V power supply (attached schematic). I followed application guide to create the schematic
The component was damage in a very bad way, near of the power supply node, please could you review and give me some recommendations.
Best regards,
Heiner
