TVS2701: Layout Example.　Trace width.

Yasuhara

Part Number: TVS2701

Tool/software:

Hi team,

In "12.2 Layout Example" of the datasheet,
the width of the power supply trace seems to be the same length (0.6mm) as the PAD of the IN terminal of the TVS2701.

If the trace width is 0.6mm, the current capacity of the trace is 0.6A.

I want to pass a current of 2.5A or more, so I want to widen the trace width.

If I widen the trace width as in the attached image, will the widened part become a detour path for the current, reducing the ESD protection performance?

How many mm can I widen the trace width without any problems in terms of performance?

Best regards,
Yasuhara

6 months ago

0 Chris Pui 6 months ago

TI__Intellectual 1320 points

Hi Yasuhara,

There should be no problem if you widen the trace width to pass a higher current. As long as the central pad remains floating, you can make the trace as wide as you need.

Best,

Chris

0 Yasuhara 6 months ago in reply to Chris Pui

Prodigy 210 points

Hello, Chris

If the trace width is not wide enough for the current,
is it okay to increase the current path on a layer other than the one where the TVS2701 is placed?

Is it okay to place a VIA hole near the TVS2701,
so that there is a current path on the component side and the solder side,
as in the attached image?

Best regards,
Yasuhara

0 Chris Pui 6 months ago in reply to Yasuhara

TI__Intellectual 1320 points

Hi Yasuhara,

If there is a current path on the backside of the board that can bypass the TVS2701, there may be an impact to clamping performance. If you must place the diode on the opposite side of the current path, we recommend this configuration:

More guidelines on ESD routing can be found in this guide: https://www.ti.com/lit/an/slva680a/slva680a.pdf?ts=1752080293727&ref_url=https%253A%252F%252Fwww.google.com%252F

Best,

Chris

Interface

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TVS2701: Layout Example.　Trace width.

Interface

Interface forum

TVS2701: Layout Example. Trace width.

TVS2701: Layout Example.　Trace width.