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I have heard similar reports with this model. Actually, we are working on a new version of the model which should hopefully be online this week.
Today, the UCC27624 Pspice model was released to TI.com. Can you try importing that one? If you tie the inputs and outputs it is almost the same device.
Thanks for your reply - I will look out for the new model. In the meantime I have tried the UCC27624 with LTSpice and it seems to behave as expected but I get a few '* Unrecognized parameter "td" -- ignored' errors. Do you know how this would effect the model?
There are two main kinds of voltage controlled switch in PSpice; S, and S_ST which stands for "short-transition". The model has a few S_ST switches and these have a parameter called TD. I am pretty sure this is for time delay, but every switch in this model doesn't use it. So every TD = 0. It looks like LTspice doesn't recognize this parameter, but since it was unused in the PSpice anyways, I don't think it will cause any issue or difference.
Hi Alex, ok I thought it would be something like that. I saw that the UCC27614 has a new model. I have tried it and it gives the same td error but works ok. Thanks for your help! Ash
