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TINA/Spice/UCC28070: UCC28070 Model and Part Pin are not same

Manoj Kumar68

Prodigy 60 points

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

Tool/software: TINA-TI or Spice Models

Hello,

In the reference design of UCC28070 / Transient Model, Pins are not as per datasheet. I need to use CDR,RDM and GND for my application, Please provide the model with these pins.

Regards,

Manoj UCC28070_PFC controller.docx

over 8 years ago

0 John Griffin1 over 8 years ago

TI__Mastermind 34465 points

Hello Manoj,
This same question is addressed here:
e2e.ti.com/.../560486
The model provided for the UCC28070 is an average model and is only applicable to the EVM configuration.
A transient model is not provided by TI.

Regards
John Griffin

0 Yunsheng Qu over 8 years ago

TI__Genius 9790 points

Hi,
Thanks for your interest in TI here. I will contacted the appropriate product group. hope you hear from them soon.

0 Manoj Kumar68 over 8 years ago in reply to John Griffin1

Prodigy 60 points

Hello Jhon,

Average model is OK but can you help addressing these three pins, CDR, RDM and GND.

0 John Griffin1 over 8 years ago in reply to Manoj Kumar68

TI__Mastermind 34465 points

Hello Manoj,

Unfortunately dither rate and dither magnitude (CDR,RDM) are not modeled for this part.

The only model I can find is attached and I think you have this.

Regards

John

0636.slum328.tsc

0 Manoj Kumar68 over 8 years ago in reply to John Griffin1

Prodigy 60 points

Hi Jhon,

What is .tsc format can you share Spice model.

I can't open this file.

Regards,

Manoj

0 John Griffin1 over 8 years ago in reply to Manoj Kumar68

TI__Mastermind 34465 points

Hi Manoj

You will need to install the TINA software in order to open this example

Regards

John