TINA/Spice/UCC28070: TINA model as in the datasheet of ucc28070

Harijarani Kirlampalli

Part Number: UCC28070
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

Hi,

I was assigned by a project. Which is ac/dc converter based on TI chip. IC number is UCC28070. From TI portal i was found TINA model of UCC28070. But there are three pins mismatch in the application schematic .

In datasheet three pins are used i.e.CDR,RDM and GND instead of these three in application schematic three other pins used i.e. IRIPA,IRIPB and f_KHZ.For my project work need the IC as in the datsheet. Please support me to get it.Application model and datasheet attached here5826.ucc28070 datasheet.pdf 0602.slum328.tsc

over 8 years ago

0 Britt Brooks - Online Design Tools over 8 years ago

TI__Mastermind 41310 points

Harijarani,

Arash has linked an explanation of the additional pins in your other post and the CDR and RDM pins are not present in the model because they are not being used in the TINA-TI model. It appears that the frequency dithering is not offered in the PSpice model and that was used to create the TINA-TI model.

If you have access to Simplis, we might be able to provide you with a Simplis model for the device.

0 Harijarani Kirlampalli over 8 years ago in reply to Britt Brooks - Online Design Tools

Intellectual 270 points

i have access to the software.please share simplis model of UCC28070.

0 Britt Brooks - Online Design Tools over 8 years ago in reply to Harijarani Kirlampalli

TI__Mastermind 41310 points

Harijarani,

Please send me an email address where I may contact you directly.

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TINA/Spice/UCC28070: TINA model as in the datasheet of ucc28070