TPD4E05U06: Concerns regarding the component recommended footprint

Ohad Mizrahi79

Part Number: TPD4E05U06

Hi
In one of our last POE Ethernet design, we were recommended by TI to implement the TPD4E0506DQAR TVS diode to provide ESD and CDE protection to the PHY.
We would like to note our concerns regarding the component recommended footprint, founded on the component datasheet.
when looking at the distances between the ground pads and the adjacent pads, while taking into account the tolerances, we find that for the maximum tolerances ( of both ground and adjacent pads), the remaining distance does not allow solder resist application. Leaving those distances without solder-mask may result, in our opinion, in shorts.
Please comment and recommend your solution.

Best Regards

Ohad

over 6 years ago

0 Cameron Phillips over 6 years ago

TI__Genius 12410 points

Hello,

We have not had any issues using the recommended layout causing shorts between any of the pins.

If you would like to make the solder pads smaller you can do so but make sure they have a good connection with each of the pins.

0 Hiroaki Yuyama TED over 6 years ago in reply to Cameron Phillips

Expert 1720 points

Dear, support Team.

We are designing TPD4E05U06 with our Japanese customers.
We introduced the recommended footprint pattern in the data sheet.
Japanese assembly manufacturers may not have the ability to design fine patterns.
Please tell us a US design maker that can design fine land patterns.

Best Regards,
Hiroaki Yuyama

0 Cameron Phillips over 6 years ago in reply to Hiroaki Yuyama TED

TI__Genius 12410 points

Hello,

This is an industry standard package and footprint that any PCB manufacturer should have the capability of doing

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TPD4E05U06: Concerns regarding the component recommended footprint