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TPS62873-Q1: TPS62873 stackable SYNC_OUT configuration

xiangling ye
Prodigy 50 points
Part Number: TPS62873-Q1
Other Parts Discussed in Thread: TPS62873

Tool/software:

Hello TI Team,
I am using three TPS62873 devices in a stacked application, consisting of one primary and two secondary devices. The datasheet specifies that the SYNC_OUT pin of the secondary device needs to be pulled down to ground with a 47K resistor.
I would like to confirm if this means that the SYNC_OUT pin of *all* secondary devices should be pulled down to ground with a 47K resistor.
Thank you for your clarification.
Best regards,
Xiangling
  • 0
    TI__Mastermind 36981 points

    Hi Xiangling,

    Thanks for reaching out to us.

    You are correct. Terminate SYNC_OUT pin of all secondary converters  to GND via 47kohm resistor. Refer to the reference schematic below.

    If you like, we can communicate via email so I review your schematic diagram in details while retaining the confidentiality of your documents.

     

    Best regards,

    Excel