Good afternoon,
I am interested in using 3x MPM82504’s in parallel to produce a 300A rail.
Can you please provide a reference design for this, or alternatively explain the reason for grounding PS2 in Figure 13 of the datasheet?
Thanks!
Jack
To answer your question, there is no dedicated 300A parallel reference design. However, I beleive you can use the following typical application diagram to achieve what you are trying to build (page 57 from the MPM82504 datasheet):
For a full parallel application of 300A, you will need to make connections between all ICs as shown by the first two modules and apply this connection architecture between all three modules.
As for your question on setting PS2 and why it is grounded, these pins are phase shedding pins. Pulling this pin low would disable a slave phase for multi-phase operation. This is the case when working with an IC that is not completely paralleled. For your application, only pull PS1 low to GND for all three of your paralleled ICs.
Hopefully this helps you. Let me know if you have any questions.
Best,
Krishan