TMS320F280049: Is PMP22650 really a bi-directional OBC application?

Yes, this is fully bi-directional. The design operates normally without the rectifier in place. The rectifier was added due to learnings from previous designs to help with surge and lightning strike testing. During those tests it is not uncommon to see many hundred of amps which would have otherwise all been routed though the FET.

Regards,
Cody

Rookie,

Please not that these legs share the same gate drive input. This is because they doubled to allow more current carrying capacity.

Those are the low-frequency FETs, and are not two totem pole legs, I hope that this is now makes sense being that they share a gate drive input.

The high-frequency FETs are on another schematic page.

Regards,
Cody