TPSM33615: TPSM33615RDNR SW Node connection

Curtis Moses

Part Number: TPSM33615
Other Parts Discussed in Thread: TPSM33625

Hi all,

I have a query about the TPSM33615RDNR, in the datasheet it shows the SW nodes (pins 5 and 6) connected internally. However, in the webbench tool for the part, it shows pins 5 and 6 connected together and on the TPSM33625 EVAL MODULE, has them connected on the schematic but not implemented on the design files.

As such my question is, does this need to be connected or can pins 5 and 6 be left floating ? Also, what is the purpose of exposing the pins, if no component is to be added to this pin?

Thanks

5 months ago

0 Richard Fu22 5 months ago

TI__Mastermind 19400 points

Hi Curtis,

This is a module, so leaving the pins floating is fine. The reason for this is to reduce issues with noise/EMI.

Thanks,

Richard

0 Curtis Moses 5 months ago in reply to Richard Fu22

Prodigy 20 points

Hi Richard so is the recommendation to have a single trace connect the two pin for EMI/EMC purposes?

Thanks

Regards,

0 Richard Fu22 5 months ago in reply to Curtis Moses

TI__Mastermind 19400 points

Hi Carter,

I would not have the single trace connect the two pins at all in order to reduce the copper placed on these pins.

Thanks,

Richard

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TPSM33615: TPSM33615RDNR SW Node connection