Other Parts Discussed in Thread: TINA-TI,
Tool/software: TINA-TI or Spice Models
Hi,
i try to get the Pspice modle UCC28700 running, but i have a problem with the simulation.
After VDD has reached the 22V limit, the DRV pin has 3 initial impulses and after these there are some (mostly 5) pulses again during them i can see the primary side current on the CS pin and also the ringing on the VS pin. Both voltages the CS and VS are inside their limits, but after the 5th pulse no more impulses are generated on the DRV pin. VDD has also a level over 22V.
What can i do wrong, has someone a good idea to get the model running or may be a simple Psice simulation with the UCC28700 already running?
Thank you
Regards
Stefan