I am using in a board the Boost driver circuit of the schematic showed here: https://1drv.ms/i/s!AhE6En32rx-MoJxQAjgxhmwvcS-G8w?e=F6BLIm There are two identical drivers sharing Vsystem bus.
It is working fine but when I turn ON the device all LED turn ON for a short period of time and after that turn OFF. This is an undesirable effect for this kind of device.
I saved some waveforms:
waveform Vin x Vddrv(green):
waveform VGateQ3 x Vddrv(green):
waveform Vcomp x Vddrv(green):
waveform Vndim x Vddrv(green):
I would appreciate your suggestions about how to correct this problem.