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Invalid TI part number in reference design TIDA-00355?

Mark Evensen91
Prodigy 60 points
Other Parts Discussed in Thread: UCC27517, UCC27714, UCC29950

TIDA-00355 is a 400W, 36V, PFC battery charger reference design. Component U3 in the BOM and schematic is listed as UCC27714D, which is described as a 4A, 600V high-side low-side gate driver. I can't locate any information about this part on the TI website. There is a UCC27517 gate driver, but the descriptions don't match.

If this is the correct part number, where can I find the datasheet? If this is an incorrect part number, can you provide a corrected part number?

Thanks,
Mark

  • 0
    TI__Intellectual 1615 points

    Hi, Mark,   UCC27714 is the correct part number. It is under development and will be released soon.

  • 0 in reply to Bing -PSC Lu
    Expert 1475 points
    What a tease! TI promotes this wonderful power supply circuit here: www.ti.com/.../sluub69a.pdf and I get all fired up to design this into my reactionless benchtop shaker, only to find a key IC is vaporware. Is there even a preliminary set of specs? I ask because 1) I am designing my product NOW (not waiting for TI), and 2) There are pin-compatible chips from Fairchild p/n FAN73933 and FAN7391. Those chips have lots of drive current but sort of long propagation delays. It seems you cannot have sub-50nS propagation delays AND multi-amp drive current output in the same chip. I am just concerned that those chips can really be swapped into the above design while TI get's it's act together.
  • 0 in reply to Otto Hunt
    TI__Prodigy 220 points

    Thanks for bringing this up question onthe high voltage driver. The part is not vaporware. The part is under development and is expected to release soon in the next few months. I am working with customers directly to understand the applications and provide them with datasheet, samples and EVMs. The part is p2p with the FAN part you are referring to. I would appreciate if you can give me your contact and I will be more than happy to have a discussion with you and provide you with the datasheet, samples etc. My contact email is n-sridhar1@ti.com

    Looking forward.

    Thanks.

    Sridhar

  • 0 in reply to Nagarajan Sridhar
    Expert 1475 points
    Thanks for your reply, Nagarajan. I decided to use a gate driver transformer instead of the chip in question. I inquired about the common-mode capacitance of Ice Components p/n GT03-111-110-A. The engineering manager there measured it for me: it is 55 pF. Hopefully that is low enough so as to not cause undesirable current to the gnd return of the UCC29950 as mentioned in section 7.4.6 of the data sheet.
  • 0 in reply to Otto Hunt
    TI__Prodigy 220 points
    In the meantime, if you do wish to get details and have some discussion using our driver, please feel free to send me a note and we will see how we can help you. Thanks.