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UCC27211: Differences between UCC27211 and UCC27211A

Part Number: UCC27211

Hi,

I will post from "Related Questions".

FAQ was posted about the differences between UCC27211 and UCC27211A.

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The UCC27211A also has an improvement to the noise immunity on VDD compared to the UCC27211.
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Is there any specific information about improving the noise immunity of UCC27211A? If you have any more information than the FAQ, please share it.

Thanks,

Astro

  • Hi Astro,

    Thank you for your question. Our office is closed today for a US holiday. I'll get back to you by tomorrow.

    Best regards,

    Leslie

  • Hi, Leslie

    Thank you for your reply.
    It would be greatly appreciated if you could reply as soon as possible.

    Thanks,

    Astro

  • Hi Astro, 

    Thank you for your patience. Unfortunately, I can't provide further details on this since it's intellectual property. In terms of specification limits, there are small changes in propagation delay/supply current of UCC27211A compared to UCC27211, resulting in no performance difference in vast majority of applications.

    UCC27211:

    PARAMETER

    MIN

    TYP

    MAX

    UNIT

    Propagation delay, falling

    10

    17

    30

    ns

    Propagation delay, rising

    10

    18

    40

    Delay Matching

     

    2

    14

    VDD operating current
    f = 500kHz, CLOAD = 0

     

    2.5

    5.2

    mA

    Boot voltage operating current
    f = 500kHz, CLOAD = 0

     

    2.5

    5.0

    UCC27211A:

    PARAMETER

    MIN

    TYP

    MAX

    UNIT

    Propagation delay, falling

    10

    16

    30

    ns

    Propagation delay, rising

    10

    20

    42

    Delay Matching

     

    4

    17

    VDD operating current
    f = 500kHz, CLOAD = 0

    2.1

    2.5

    6.5

    mA

    Boot voltage operating current
    f = 500kHz, CLOAD = 0

    1.5

    2.5

    5.1

    Best regards,

    Leslie