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UCC14141-Q1: UCC14141-Q1: Question about UCC14141-Q1 circuit design. (PG)

Part Number: UCC14141-Q1

Tool/software:

The power-good (PG) pin is an open-drain output that indicates (short) when the module has no fault and the output voltages are within ±10% of the output voltage regulation setpoints.


i will be using 3 phases, so I need a total of 6 ICs(UCC14141-Q1) since two ICs will be used one phase (High Side / Low Side).

If I connect the PG pins together, it might be difficult to determine which IC is causing an issue if a problem arises. However, I want to use the PG pins in this manner by connecting them together.

1. I'm wondering if it's possible to connect all 6 PG pins together for use.
(The control board will receive the PG input through a single wire.)

2. If it's difficult, is it possible to use two PG pins grouped together on one phase (HS/LS)?


Thank you

    • If I connect the PG pins together, it might be difficult to determine which IC is causing an issue if a problem arises. However, I want to use the PG pins in this manner by connecting them together.
      • Yes, if you connect the /PG pins together, you will not be able to tell which IC is in fault, if a fault occurs
    • I'm wondering if it's possible to connect all 6 PG pins together for use. (The control board will receive the PG input through a single wire.)
      • Yes
    • If it's difficult, is it possible to use two PG pins grouped together on one phase (HS/LS)?
      • Yes, all /PG signals are low-side GND referenced

    Regards,

    Steve