We are using two MPM82504 devices, with one configured in a 3-phase setup.
Could you please review the circuit, particularly with respect to the I2C address settings and phase configuration?
For the 3-phase channel, would the following settings in Virtual Bench 4.0 be correct?
All 3-phase channels are configured with the same address (0x31).
These power rails are all used to supply power to an FPGA.
In practice, the maximum current consumption will be lower than 25A, typically around 5A and 12A per channel.
When using Forced CCM mode, the heat generation seems to be quite high.
Would there be any issues if we configure all FPGA rails, including core and GT power, to operate in Pulse Skip Mode instead?
We will follow up with this request via email. You should hear from FAE support associated with your company. Apologies for the delay here, they should get back to you on the review.
To speak on the GUI settings here, it seems you should be ok with your 3-Phase setup. If you’d like to further verify this, export your register settings and interface with our MPS team that reached out to you via email. Ensure the multi-phase ramp voltages are also to your desired specifications in the advanced parameters.
Also to speak on the heat generation, FCCM should be fine with the currents that you are using. PSM is meant for very light loads at 1A or less, however you can experiment on the 5A rails. Also please ensure that your VOUT_SCALE_LOOP corresponds with the output voltages for each rail whether you use internal or external resistors. Please communicate the exact temps and updates to the team that will be reaching out to you.
Also do let me know that you have confirmed contact with this team.
