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PSPICE-FOR-TI: UC1843A-SP simulation not working

Other Parts Discussed in Thread: UC1843A, TINA-TI

Dear TI,


(edit change UC1483A to UC1843A)

I'm trying to run a simple simulation moving from TINA_TI to SPICE FOR TI, for simulatiuon capabilities purposes (Monte carlo and so on). The schematics is as follows, and was working under TINA-TI : 



But, with PSPICE FOR TI, nothing is working, the chip has its supply, but no PWM at the output of the chip is appearing..... as you can see below (in blue) 



My simulation profile is as follow : 



I didn't touch anything else. I was expecting this to work, but no....


Can somebody help me to get this working?


The simulation file is below :