Auto detect USB device TPS2511DGN

Gadi Mazuz

Other Parts Discussed in Thread: TPS2511, TPS54240

I am planning to use TPS2511DGN as USB Auto detect device

Do you know if no USB device is attached, does the output voltage still be 5v or it is only applied when device connected?

Thanks for your help

Mazi

over 12 years ago

0 Wen-Shin Wang over 12 years ago

TI__Genius 14070 points

Hello Mazi,

As the Power Interface Forum would be the best contact to answer this question, I will move this post over to that forum.

Thanks and Best Regards,

Wen-Shin Wang

0 Eric Wright over 12 years ago

TI__Mastermind 42795 points

OUT will be connected to IN by the internal switch when EN = HIGH (no matter what is connected to DP/DM. You can find some characteristic waveforms in figure 6-15 of the datasheet.

0 Gadi Mazuz over 12 years ago in reply to Eric Wright

Prodigy 30 points

Thanks Eric - So how it possible to detect if devices is hooked, i was assuming through the output power.

Do I need to monitor the D+/D-

0 Eric Wright over 12 years ago in reply to Gadi Mazuz

TI__Mastermind 42795 points

TPS2511 does this using DP/DM as explained in the DS.

0 Gadi Mazuz over 12 years ago in reply to Eric Wright

Prodigy 30 points

Hi Eric,

I reviewed the Datasheet and it looks that I need to use the Application note of SLVA464D–May 2011–Revised May 2012

Can I order the full kit that includes PCB, components and IC in order to analyze the behavior of the device?

Is it possible? What are the options?

Thanks,

-Gadi

0 Eric Wright over 12 years ago in reply to Gadi Mazuz

TI__Mastermind 42795 points

The design covered in SLVA464D is not available to order as a kit, but the TPS2511EVM is available (http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=sluu945&fileType=pdf) for order.

TPS2511EVM contains both the TPS54240 buck regulator as well as TPS2511 in a fully assembled/tested unit.

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Power management forum

Auto detect USB device TPS2511DGN