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.?

over 7 years ago

0 Adam Mc Gaffin over 7 years ago

TI__Mastermind 30000 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 SHH over 7 years ago in reply to Adam Mc Gaffin

TI__Mastermind 32206 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 SHH over 7 years ago in reply to SHH

TI__Mastermind 32206 points

It is for type C data port(5V/3A) and need to support BC1.2. What is the recommendation?

0 Adam Mc Gaffin over 7 years ago in reply to SHH

TI__Mastermind 30000 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 SHH over 7 years ago in reply to Adam Mc Gaffin

TI__Mastermind 32206 points

Thanks for recommendation.
Can customer uses HD3SS3220+TUSB2547?

0 Adam Mc Gaffin over 7 years ago in reply to SHH

TI__Mastermind 30000 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.

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