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TPS2546: TPS2546 can over spec drive 5V/3A current.?

user4773197
Prodigy 560 points
Part Number: TPS2546
Other Parts Discussed in Thread: TPS2547, TPS25810, TPS2514, TPS2511, HD3SS3220

Hi Team,

Due to customer required BC1.2 function and 5V/3A , but 2546 Iout max is 2.5A.

Do we know TI 2546 can over spec drive 5V/3A current.?

  • 0
    TI__Mastermind 28910 points
    Hello,
    I have two questions for you.
    1. May I ask what device uses 5V at 3A? This is not BC1.2 compliant as it can only allow up to 7.5W (5V/1.5A).
    2. What type of adaptor is being used? Is it a legacy device or a USB Type-C? USB type-C has a maximum power output of 15W(5V/3A) which is what you are looking for.
  • 0 in reply to Adam Mc Gaffin
    TI__Mastermind 30886 points
    Adam,
    Checked with customer for you question.
    Can customer use TPS2547?
    USB Charging Port Controller and 3A Power Switch With Load Detectio
    www.ti.com/.../tps2547
  • 0 in reply to SHH
    TI__Mastermind 30886 points
    It is for type C data port(5V/3A) and need to support BC1.2. What is the recommendation?
  • 0 in reply to SHH
    TI__Mastermind 28910 points

    Hello,

    I would recommend using the TPS25810. This is a USB Type-C DFP controller with source capabilities of 5V at 3A. To accommodate for BC1.2 detection, you will need to use a separate part alongside the TPS25810.

    If you do not need to worry about transferring data when connected to the legacy device via BC1.2, I would recommend using the TPS2511 or TPS2514 as the device connected alongside the TPS25810. Here is a link to a reference design that would fit your needs.

    If you do want to transfer data from the legacy device, then I would suggest using the TPS2547 as the device connected alongside the TPS25810. You will connect the TPS2547 similarly to the TPS2514 in the design above

    If this answered your question, please click This resolved my issue

  • 0 in reply to Adam Mc Gaffin
    TI__Mastermind 30886 points

    Thanks for recommendation.
    Can customer uses HD3SS3220+TUSB2547?

  • 0 in reply to SHH
    TI__Mastermind 28910 points
    Do you mean the TPS2547? If so then yes, I do not see why the two devices cannot be used together. However, the HD3SS3220 is assigned to a different group than the one that I am in. What I would recommend is closing this thread, and verifying with their team that the two parts can be used with one another. They could tell you what I told you, but they could also recommend a different part that I do not know about the may be more compatible with the HD3SS3220.