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  • TI Thinks Resolved

PCA9306: Logic level for EN pin

Guru 13450 points

Part Number: PCA9306

I didn't find EN input threshold for High and Low level on the datasheet. 

I guess that EN High: 2.0V_min and Low: 0.8V_max, is it correct?

If not correct, please let me know correct Enable input High/Low level.

Best regards,

Satoshi

  • Hi Satoshi-san,

    EN is actually not a logic input. It is an analog input used by the device to generate a gate bias for the internal switches. We recommend tying it to VREF2 and pulling it high via a 200-kOhm current-limiting resistor in order to operate with the device active. The EN pin could be pulled to 600 mV or lower to disable the device (make it high impedance).

    Max

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