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TINA/Spice/UCC28070: UCC28070

John Waugaman
Prodigy 40 points
Part Number: UCC28070
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

I have begun to set up the simulation of the PFC control section of our circuit.  In attempting to use the UCC28070 models you have provided I have run into a problem.  The pin definitions for the two files you sent are:

 

.SUBCKT UCC28070_TRANS VREF PKLIMIT IMO F_KHZ RT SS RSYNTH CSA CSB VAO VCC VINAC

+ VSENSE DMAX IRIPA IRIPB CAOA CAOB GDA GDB

 

.SUBCKT UCC28070_AVG VREF PKLIMIT IMO F_KHZ RT SS RSYNTH CSA CSB VAO VCC VINAC

+ VSENSE DMAX IRIPA IRIPB CAOA CAOB GDA GDB

 

The pin names I have shown in bold do not appear on the device and there is no explanation as to their function in the files.  At the same time the CDR and RDM pins are missing.  As such I cannot use the provided simulation files unless this discrepancy can be resolved.  Any help or direction will be greatly appreciated.

  • 0
    TI__Mastermind 32281 points

    Hi John,

     I believe the extra pins were there to be used for the AVERAGE model ( they are connected and used by the  two AVERAGE BOOST in the test-bench) .  With the same token the two missing pins are for frequency dithering which were not modeled/used and thus removed. Let me see if I can find more information and  I will let you know.

    Kind Regards,

    Arash