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SN6505B: Enable pin threshold

David Daggett
Intellectual 855 points
Part Number: SN6505B

 

Customer has built product giving the SN6505 5V supply, whilst providing the enable pin 3.3V.

Customer is trying to determine how much exposure they have with this setup.

 What is the typical multiplier for the enable? (0.55x?)

What is the distribution of typical EN threshold?

  • 0
    TI__Mastermind 49545 points

    Hi David,

    Thanks for reaching out.

    We typically recommend customer to use the same voltage for both VCC and EN pins to make sure the device can be reliably enabled. Using 3.3V on EN pin while VCC is 5V will lead to the voltage at EN pin that is outside the recommended value, especially when ±10% variation in supply voltages is considered.

    David Daggett said:
    What is the typical multiplier for the enable? (0.55x?)

    Yes, the typical threshold for EN pin is 0.55*VCC.

    David Daggett said:
    What is the distribution of typical EN threshold?

    We typically do not share characterization data or distribution information. Let me know if there is anything else I can help you with, thanks.


    Regards,
    Koteshwar Rao