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Original question:

TPS7A16-Q1: PG pin's maximum current

TPS7A16-Q1: TPS7A1650

Pascal Regache
Prodigy 130 points
Part Number: TPS7A16-Q1


Tool/software:

Hello,

A related question to the device PG pin current is the maximum current that the device may sink without reliability issues (regardless of the actual voltage output - no curves)

The absolute maximum rating table has a "current" entry stating "internally limited" without mention of which pin are concerned and a useful number.

Thanks

Best regards 

  • 0
    TI__Expert 7322 points

    Hey,

    The current limit can be found in the electrical characteristics table. It refers to the current passing through the pass element. Which would be between input and output pin. The current limit is independent of other pins such as enable, or power good. Those pins do not deliver load current and are typically low-current logic pins.

    Thanks,

    Vahnroy Hosear

  • 0 in reply to Vahnroy Hosear
    Prodigy 130 points

    Hello, I apologize, I should have been more explicit: my question is related to the PG pin and the maximum current that this pin (PG) may sink (regardless of the output voltage level).

    On an existing design, the TPS7A device PG pin is wired-or with other open collector devices and for functional reasons, the pull-up resistor value must be decreased. The current will  increase to around 10mA. Hence the question about the maximum current that the PG pin can sustain.

    Thanks

    Pascal

  • 0 in reply to Pascal Regache
    TI__Expert 7322 points

    Hey,

    I apologize for misunderstanding the question. I am reaching out to the design team to get an absolute number. In the meantime sinking 10mA of current through the PG pin should not be an issue. I will keep you updated when I hear back from the design team.

    Thanks,

    Vahnroy Hosear