My customer is facing some problems using the ADUM4223BRWZ to drive 2 buck mosfets.
Please refer to schematic below.
Our drive need 40mA RMS, the fuse F1 and F2 are 250mA.
BUCK_DRIVE_1, BUCK_DRIVE_2 are 10V.
Problem: In some cases I got burned fuse and burned IC.
Sometimes the 13V side is damaged and sometimes the 3.3V side is damaged.
COM signal is the ground of side 1 (3.3v side F2)
-VCF signal is the ground of side 2 (13v side F1)
I haven't found any abnormalities during my tests.