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TPS2546: does this part have reverse current blocking function?

Part Number: TPS2546

Hi Team,

quick check , as title , does this part have reverse current blocking function?

my customer is asking this question , and per my check on d/s this part didn't have the function above,

just wanted to have a quick sync on this to confirm if my understanding is correct, thanks!

  • Hi Andy,

    No the TPS2546 does not offer any RCP functionality. However, it may not necessarily be needed as the application a TPS2546 is used in should not have another voltage presented on VBUS. If you do want protection, you can use a device like the TPD1S514-1 connected to the TPS2546 which will protect against over voltage events on VBUS.

  • Hi Adam,

    Thanks for the check and reply.

    I would like check one more function on TPS2546 , the EN(enable) function

    customer wanted to know, the enable pin on TPS2546 will turn on/off the power and signal path together , is that correct?

    I would say this is correct , and customer can see from the d/s pin define(figure below),

    customer have this doubt is due to the block diagram(d/s 8.2)  only show the enable of power path but not signal path, I assume the block diagram just only the simplified schemaitc, not the detail internal circuit.

  • Yes, when the device is disabled, the signal switches are disconnected from the system