UCC28951: Can WEBENCH expend its design space for these controllers to include synchronizing multiple controllers?

Isaac Kreft

Part Number: UCC28951
Other Parts Discussed in Thread: UCC28950

Tool/software:

Hello,

I am interested in using WEBENCH to design a multiphase UCC28951 regulator. WEBENCH generates designs with UCC28951, but these designs are limited so a single regulator, which is imposing power, efficiency, and customization limitations. This synchronization process for UCC28951 is described in App Report SLUA609 (albeit with the older UCC28950). Similar synchronization strategies are included in WEBENCH calculations for other regulators, such as the LMQ644 (which is appropriate for other applications).

5 months ago

0 JCHK 5 months ago

TI__Guru 50040 points

Hi Isaac,

This is a request have have in the queue for WEBENCH modifications. Unfortunately, I do not have a timeline for when this will become enabled.

0 Isaac Kreft 5 months ago in reply to JCHK

Prodigy 50 points

Ok. I would appreciate to know when such a feature becomes available.

0 Isaac Kreft 5 months ago in reply to Isaac Kreft

Prodigy 50 points

I should clarify. The datasheet handles the situation with two controllers simply, in "6.3.15 Synchronization". The App Report discusses three or more. Simply synchronizing two controllers should be easier to implement.

0 JCHK 5 months ago in reply to Isaac Kreft

TI__Guru 50040 points

Hi Isaac,

I agree. Hopefully, this update will be added soon.

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UCC28951: Can WEBENCH expend its design space for these controllers to include synchronizing multiple controllers?