Boards in 2 GitHub repositories, designed in KiCad, that use the FDMS86255 by onsemi (-55℃~+150℃ 1 N-channel 15.5mΩ@6V 150V 2.7W 20pF 4.48nF 410pF 45A 4V 63nC@10V N-Channel Power56-8 MOSFETs ROHS). See how each wires it, with its parts, size, README and files; the FDMS86255’s symbol, footprint and pinout are on its own page.
nsm81/VehicleJunctionBox_PCBs
The junction box is an intermediate stage between the accumulator and inverter. It contains an HVD, a current sensor, discharge circuitry, TSAL and TSMPs.
nsm81/VehiclePrecharge_PCB
The precharge board contains the precharge resistors, precharge relay, main relay drivers (with economisers), and a controlling micro.