TUSB546EVM: Input the External Power Set

user4951791

Prodigy 190 points

Part Number: TUSB546EVM
Other Parts Discussed in Thread: TPS65982, , DP-EXPANSION-EVM, TPS65981

I'm testing with TUSB546EVM board, and the IC used in the project is TUSB1046 and TPS65982.

This project converts DP video source to USB Type-C, and it is a device to check video source by

connecting to a mointor that supports USB Type-C.

When the monitor and the device are connected, I have a question about the external voltage setting from the

monitor to the device.

1. TPS65982 flash is the same as EVM.

2. The device always inputs 5V.

3. Is there any way to change the voltage input from the monitor to the device to 5 ~ 20V?

Thanks.

over 7 years ago

0 Jorge Llamas (SWAT) over 7 years ago

TI__Expert 7395 points

Hello,

A support engineer has been assigned. You should be getting a response soon.

Regards,
Jorge

0 Brian Quach over 7 years ago in reply to Jorge Llamas (SWAT)

TI__Expert 4325 points

This question is specific to TPS65982 and not TUSB546 so I will try to reassign to the appropriate team. However, as I know, you can configure the TPS65982 firmware sink PDOs so that higher voltages will be requested if the monitor supports them.

See software section: www.ti.com/.../toolssoftware

0 Aramis P. Alvarez over 7 years ago in reply to Brian Quach

TI__Genius 10370 points

Hi,

Welcome to E2E! For the TPS65982, one can configure the firmware to source either 5V, 12V, or 20V. This is accomplished by downloading the application customization GUI tool from the web. Here's a link explaining how to do this: http://www.ti.com/lit/ug/slvuar8a/slvuar8a.pdf.

If this answers your question, PLEASE select This resolved my issue.

0 user4951791 over 7 years ago in reply to Aramis P. Alvarez

Prodigy 190 points

Thanks for response.

Is not there a way you taught me?

For example, can I set register using I2C or SPI?

In the products we want to use, the voltage of VBUS should be freely set,

but we want to use it without the control program.

Looking at the TPS65982 Technical document, I can't find a register to do this,

so I want to get technical support.

Thanks.

0 Aramis P. Alvarez over 7 years ago in reply to user4951791

TI__Genius 10370 points

Hi,

The voltage of VBUS is set by a variable DC/DC controller, which is controlled by the PDO's on our PD controller. This is probably why one cannot find this in the Firmware technical documentation. These voltages are not created by the PD controller but are created by the variable DC/DC controller circuit architecture. Are you using our TPS65982EVM board for the test above or do you happen to have your own board?

0 user4951791 over 7 years ago in reply to Aramis P. Alvarez

Prodigy 190 points

Hi~

I don't have TPS65982EVM board. Can I run the test in TUSB546EVM?

How can I control variable DC/DC controller circuit architecture?

Is there any way to handle it in H/W other than way to go in GUI?

Thanks.

0 Aramis P. Alvarez over 7 years ago in reply to user4951791

TI__Genius 10370 points

Hi,

The application customization GUI works on the TPS65981/2/6 EVM boards, and the variable DC/DC is easily controlled by the GUI. We also have a DP-EXPANSION-EVM board for alternate modes (DP, USB 3.1). Feel free to check out all of our collateral on these devices here: http://www.ti.com/product/TPS65982/technicaldocuments.

If you have questions about the TUSB546EVM, feel free to re-post the question to the appropriate forum. But for any questions on the TPS65981/2/6, I'm here to help.

If this answers your question, PLEASE select This resolved my issue.

0 Aramis P. Alvarez over 7 years ago in reply to Aramis P. Alvarez

TI__Genius 10370 points

Since we closed this thread, could you PLEASE select This resolved my issue

Thank you so much for your question and choosing TI parts for your design :-)

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TUSB546EVM: Input the External Power Set