Other Parts Discussed in Thread: TINA-TI,
Tool/software: TINA-TI or Spice Models
Hi,
for a project I am trying to calculate switching losses in MOSFETs for different currents and frequencies.
As a test object I have chosen the part CSD87355Q5D. My first goal was to analytically calculate (http://www.ti.com/lit/an/slpa009a/slpa009a.pdfthe losses and compare them with the results given from the online tool "MOSFET Power Loss Calculator". This works fine.
Afterwards I wanted to build the same model in SPICE to compare the results to the calculated results (it is not really necessary, however, it's always good to cross-check). Unfortunately, the simulated losses do not correspond with the calculated losses.
Comparison:
MOSFET Power Loss Calculator:
SPICE Model (loss results from dissipated power W):
Does anyone has a clue if I am doing something wrong or is the SPICE Model not working properly?
Since I am rather new to this field, it might also be a strange question. Maybe it is simply not possible to do it like this?
Anyway, I would be happy about any help.
Thanks,
Reto