I’m looking at buying Odrive V3.6 for use down to 6.6V. I found a 2017 post by Oskar where he explained that the lower limit to GVDD is set by the heat dissipation of the MOSFETS. For my situation, I would not be running the motor above 22A. Looking at the NTMFS4935NT1G MOSFET datasheet in the V3.5 schematic on GitHub, the Rdson with a 6.6V gate voltage is 3mOhm giving a power dissipation of around 1.5W at 22A. This appears ok to me. However, in the post I saw you were not recommending GVDD dropped below 9V. Was that for maintaining full rated Odrive current? Also, have the MOSFETS used in V3.6 changed to those in v3.5 or are they still NTMFS4935NT1G?
Assuming this was ok then I was planning on modifying dc_bus_undervoltage_trip_level (in odrive_main.h) down to somewhere in 6V-6.6V range. Bearing in mind I don’t want to use full Odrive rated current are my assumptions missing something? Thank you very much for your time