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PCA9515B: EN pull-up resistor

Kuramochi Tadahiko
Guru 28715 points

Part Number: PCA9515B

Hi,

How many resistance value is pull up resistor of EN?

Best Regards,

Kuramochi

  • 0
    TI__Mastermind 25176 points

    Hello TQ,

    I wished that this datasheet had put the resistance value range, but you have to do a couple of steps to figure out what the range of the value is.  

    For the typical value, we know that the voltage is either 2.5 or 3.3V, therefore Vcc=2.5 or 3.3V.

    Here is the calculations.

    So the range is 115k to 310 k Ohms.

    -Francis Houde

  • 0 in reply to fhoude
    TI__Mastermind 25176 points

    Hello TQ,

    After investigating further I found it was done at 3.3V only.  Thus:

    Let me know if you have any questions.

    -Francis Houde