Part Number:UCC28780
We are using UCC28780 for 8 modules in our system.
We followed the NV6117 design example with sync rectification with EPC2024.
Because ours is dc-dc derived onboard from 3ph PFC, we have 380V at the input. Outputs could be from 40W to 150W all with 5V, 12V &15V.
We have bias converters started off the 3ph using UCC28711 primary side control. Before anything else gets started. So we can provide various floating bias without resort to "bootsrap" using diode etc.'
So in short, the design is a bit different but follows the calculations from the new spreadsheet & placement/routing.
I would like you to take a look at this because of the risks involved( 8 modules out of 11!) being the same design.
Which email can I send screen short os pdf files?
thnx
much