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TUSB546EVM: MLCC Voltage Rating

Tomas Almeida
Prodigy 245 points
Part Number: TUSB546EVM

Hi,

Has the 20V power path been tested? Looking at the BOM, C3 and C14 are rated to 16V VDC. Is it expected to work with 20V input?

Best Regards,

Tomás Almeida

  • 0
    TI__Mastermind 28400 points

    Hi Tomas,

    Looking at the schematic, the 20V power path is only an output, not an input.

    You can see this from the device D4, which would only allow current to exit the board (BOARD_20V --> SYS_DC_OUT)

    This EVM is designed to work on a 5V supply only. I believe this 20V path was included as an example of implementing a 20V VBUS, but it is not the intended use of the EVM. 

    Best,

    Shane