PMP4925: Sample of EVM need for PMP4925

Dattatray Badgujar

Part Number: PMP4925

Hi John, Having resolved the minimum input level; Iz the PMP4925B ,a EValuation Module or only ref designI would hv liked to explore one for UCC2897A ic. Can it be sampled?If yes ,how?pls Guide,

over 5 years ago

0 Dattatray Badgujar over 5 years ago

Prodigy 60 points

Modify my Query as : If PMP4925 is not available in EVM form , which is the nearest EVM that can be sampled for UCC2897A profile

0 Sonal Singh over 5 years ago

TI__Expert 6080 points

Hello,

Thank you for your interest in UCC2897A.
Unfortunately, there is no way to buy these exact designs and thus they are not available on the TI store. They are built and designed with the purpose of verification of our controller's performance and you can find the schematic, BOM and Gerber files to enable you to build your own board.

Regards,
Sonal

0 Dattatray Badgujar over 5 years ago in reply to Sonal Singh

Prodigy 60 points

Hi Sonal Singh

Ok, in this case then UCC2897A EVM can be supplied as sample? Is it possible?

Secondly , How much max duty cycle a designer can go in Active clamp? TO be specific is it ok if 65% duty is planned (to reduce size of Trf)?

Is any doc available to calculate the FET & TrF loss?

If so pls provide us

thanks... Dattaray

0 Sonal Singh over 5 years ago in reply to Dattatray Badgujar

TI__Expert 6080 points

Hello Dattaray,

You can order the EVM on the link below:

The maximum duty cycle of 70% for UCC2897A is considered as a normal operation, you will be fine there.

The paper below has a very thorough approach on how to calculate the power losses across the transformer: https://www.ti.com/lit/ml/slup126/slup126.pdf

Use this paper to calculate the losses related to the primary FET: http://www.ti.com/lit/an/slyt664/slyt664.pdf

Regards,

Sonal

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PMP4925: Sample of EVM need for PMP4925