I'm using the PSPICE model (UCC3895) for Cadence/PSPICE.
Issue:
The SYNC pin of the model does not seem to work.
I've tried to inject with external clock. It does not effect on the output.
Please advise.
Since I'm connecting multiple converters with various SYNC phases this pin function is very critical
for the common output ripple analysis (ripple cancellation effect).
Thank you so much for your help.
I'm injecting 400KHz an external clock through a 100 ohm resistor to SYNC pin of the PSPICE model
while the locally generated internal clock is about 300KHz with Rt (93Kohm) and Ct (330pF).
The outputs (OUTA & OUTB, OUTC & OUTD) do not effect on the SYNC clock of 400KHz.
Please advise.
Thank you so much for your response.
Shi Chong
Raytheon
310-334-1928
