UCC28951: design document of UCC28951

Bill Xu

Intellectual 1350 points

Part Number: UCC28951
Other Parts Discussed in Thread: UCC28950, LMG3650R035, LMG3650R025

Tool/software:

Dear Product line application engineer

do we have any document to help design PSFB power supply based UCC28951? thanks.

regards,

Bill

2 days ago

0 JCHK 2 days ago

TI__Guru 50190 points

Hi Bill,

Mike put this together SLUA560D to help with the design process. The UCC28950 has a lot of application notes tied to it on ti.com and these all apply equally to the UCC28951.

I hope this answers your question.

+1 Bill Xu 1 day ago in reply to JCHK

TI__Intellectual 1350 points

Hi, JCHK

thanks for supporting in here! I had SLUA560D on hand.

regards,

Bill

0 Bill Xu 1 day ago in reply to Bill Xu

TI__Intellectual 1350 points

Hi, JCHK

I download the SLUC222E and try to use this Excel document to help design. I prefer use LMG3650R025 or LMG3650R035 as MOSFET. since these GaN MOSFET integrated gate driver. how should I fill the QA gate charger in the excel document? the datasheet of LMG3650R025 has no these parameters. thanks.

regards,

Bill

0 JCHK 19 hours ago in reply to Bill Xu

TI__Guru 50190 points

Hi Bill,

Glad to hear it!

0 JCHK 19 hours ago in reply to Bill Xu

TI__Guru 50190 points

Hi Bill,

The Qa gate charge is just for helping to better estimate the power losses in the gate drive. It is not critical to the overall design.

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UCC28951: design document of UCC28951