I have two (2) questions involving the UCC29002-1 in a hot-swap application. Each power module is capable of providing full load, which is 3.3V @ 40A. If both power modules are present, each power module with the assistance of the UCC29002 will load share 50% or 3.3V @ 20A, respectively. If a power module fails or is removed, the other power module will transition to provide 3.3V @ 40A. When the second power module is reinserted (i.e. hot-swap), both power modules will load share at 50%.
Question 1) Does the LS pin require any active or passive circuitry for hot-swap applications.
Question 2) Do I need the ORing circuitry if I am using the UCC29002?
The DC-DC converter is a synchronous rectifier topology. I have attached a block diagram for your reference. Thank you .TI Block Diagram.pdf
