Hi,
I’ve designed an Ideal diode Board using LTC4364.
Input voltage: 36~54.6V
Max current: 30A
I’ve tested the board and faced a problem.
Test setup:
A 10-ohm (1000 W) resistor is connected to the output connector(P2) and the Input voltage is ~54V. So the load current will be around 5A
Main Mosfet: NVMFS6H800NLWFT1G
Problem: When I power on the board using the P1 connector, Q1 MOSFET burns out. (Mosfet's Drain to Source, will beep when the board is off using a multimeter). Without the load, everything is fine and the circuit works.
It should be mentioned that the selected Mosfets can handle current when Tc 100°C.
Also, some Dc-Dc converters are connected to the output side.
attached Schematic: drive.google.com/.../view
