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TPS82084: behavior of Power Good

Part Number: TPS82084

Hi,

We got a question from customer about TPS82084.
Could you help us?

[Question]
Our customer consider to pull up EN and PG to Vin.
What is behavior of Power Good at each condition A to F in below figure?

Best Regards,
tateo

  • Section 8.4.2 in the D/S explains the PG behavior under various conditions. 1 clarification to this description is that 'UVLO' should instead be 'Vin removal'. Table 1 in the TPS82130 D/S shows a more precise explanation of the PG behavior, which also applies to the TPS82084.

    Specifically for your drawing (with EN = Vin), A and F will show PG at the Vin level, while other regions will hold EN low. But A and F should be re-labeled based on the Vin level and will occur around 0.7Vin.

    Chris Glaser

    Texas Instruments

    ________________________________

    TPS62147 – New 17Vin, 2A buck with forced-PWM option for low output ripple.
    1% accuracy over temperature, 0.8V to 12Vout, pin-compatible to 4A (TPS62136), for industrial applications.

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