Hi,
I have UCC21550BQDWRQ1 circuit, which is attached. The PWM controller is UCC28086D at 33kHz. The input works fine. Concerning the output, only the OUT B is switching ON/OFF but the OUTA goes high and reads 10V, i.e., stays ON without switching.
I have supplied the isolated rail with 11.5V, both VDDA and VDDB share the same power rail. In the previous question awhile ago, I was told that both can share the same PSU.
What could be the issue?
Kind regards,
Bright
