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PMP23069: Missing signal layers in gerber file

QINGYU ZHAO
Prodigy 10 points
Part Number: PMP23069

Dear TI engineer:

I am currently studying TI's reference design PMP23069. As I prepare to test the official Gerber files by making a board, I have encountered an issue.
During the board-making process, I discovered that the power board Gerber_NCdrills_IPC file in the Gerber-file (TIDCG44.ZIP) provided by TI only contains drilling information, TOP layer and BOTTOM layer. The official power board is a 6-layer structure, and there are serious omissions in the Gerber (signal layer).
To ensure that users can proceed with their studies, could you please check and upload accurate Gerber files? Thank you for your assistance.
Best regards!

  • 0
    TI__Expert 7170 points

    Hi Qingyu,

    Thanks for pointing out this, I am working to update the gerber file, it will take some time to show up in TI website. In the meanwhile I can send the gerber file to you directly if you can provide your email address. By the way, we will have a new version of 3KW totem pole PFC to be released by end of this year, please check back.

    Regards,

    Bosheng

  • 0 in reply to Bosheng Sun
    Prodigy 10 points

    Hi Bosheng,

    Thanks for your reply, my email address is 11510473@mail.sustech.edu.cn. I may need the gerber file of PMP23069, because I need to check my PCB. 

    Regarding this PFC solution, I also have two more questions in need of your kind guidance:

    1) In PMP23069A(001)_Sch. PDF, there is a board linked to bias supply daughter card (PMP20306RevA). What is the purpose of this board and how should it be connected?

    2) Why is the rated current of L4 in the baby boost set as 30A? Since it is a 3-kW system, I think the current value should be approximately 10A. 

    Best wishes!

  • 0 in reply to QINGYU ZHAO
    TI__Expert 7170 points

    Hi Qingyu,

    1, the bias supply provides bias for gate driver and controller, it connects to the main board through J4

    2, L4 is the boost inductor for main PFC, not for baby boost. The PFC can handle 3.6KW, the peak current is about 23A at 3.6KW.

    I will send the gerber file to your email.

    Regards,

    Bosheng

  • 0 in reply to Bosheng Sun
    TI__Expert 7170 points

    Hi Qingyu, the new gerber file is in TI.com now, you can download from there.