TPSM82810: Initial assessment of switcher for PTE application

Dan1

Part Number: TPSM82810
Other Parts Discussed in Thread: TPSM82813, TPS82085, , TPSM82822

Hi,

Are there any photos of TPSM82810 and TPSM82813?

I realise that this is a strange question, but we design for Pressure Tolerance Electronics (PTE) and would like to assess the likelihood that these modules will survive in our application.

We really like the TPS82085 because it is not overmoulded. The inductor is sitting on top of the chip, and it looks like a ferrite which has a better chance of surviving pressure.
However, TPSM82810 and TPSM82813 are better suited to our application so unless we see some obvious reason in photos for why they would not be suitable, then TPS82085 isn't worth testing at this point.

Photos of TPSM82810 or TPSM82813 would go a long way towards helping us analyse them before ordering samples for testing.

Kind regards,

over 4 years ago

0 Dan1 over 4 years ago

Intellectual 865 points

The photo of the TPSM82810EVM-089 is too small to see.

0 Chris Glaser over 4 years ago in reply to Dan1

TI__Guru*** 146640 points

Hi Dan,

Yes, I was going to offer the EVM as a real life picture. We also have various models for CAD programs, such as Altium, here: https://www.ti.com/product/TPSM82810#design-development For many devices, we also offer a STEP model there.

The D/S's package drawing has a 3D picture at the top of page 34. That is what the actual device looks like (upside down).

I can confirm that the TPSM82810 is the same type of construction as the TPS82085. Both are not over-moulded with the inductor on top.

0 Dan1 over 4 years ago in reply to Chris Glaser

Intellectual 865 points

Thanks Chris,

That was very helpful.

Do you know if there is any information about the low current TPSM82811 and TPSM82812 that are mentioned in the TPSM82810 and TPSM82813 datasheet?

I'm only interested if they have better efficiency in the µA and mA range. Otherwise, we may as well use more TPSM82810 and avoid adding additional reels to the BOM.

Kind regards,

0 Chris Glaser over 4 years ago in reply to Dan1

TI__Guru*** 146640 points

Hi Dan,

No, those devices have not been announced yet.

If you want better light load efficiency, we have the TPSM82822/1 for 1A and 2A. They are the same type of module construction as TPS82085 and TPSM82810.

0 Dan1 over 4 years ago in reply to Chris Glaser

Intellectual 865 points

Thanks Chris

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TPSM82810: Initial assessment of switcher for PTE application