Hi team,
Our customer is using opa548 in their projects, power supply is +22V/-6V. For better thermal performance, they want to connect OPA548 thermal pad directly to heat sink. Since OPA548 thermal pad is connect to V-, customer wander do they still need to connect heat sink to V- using an independent PCB wire? Just like what we do in our OPA548 EVM. Does it OK to delete that PCB trace and use the OPA548 internal connection to get heat sink V- voltage potential?
If that PCB trace is needed, what does it used for?
They want to do that because they use Aluminum plate PCB, and they could only place wire on a single layer, and get limited wire to connect thermal pad to V-.
Could you help check about this?
Thanks,
