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UCD9090: What is the default status of UCD9090 Alert pin?

YORK QIAO
Prodigy 20 points
Part Number: UCD9090

Hi there,

the UCD9090 alert pin was pull-up to 3.3V by a 10Kohm resistor.

what is the defaut status of the alert output? Is it high or low without loading any configuraiton?

My UCD9090 alert output keeps low while I download the configuration.

Best Regards,

York

  • 0
    TI__Guru 65920 points

    Hi

    Alert is a open drain signal. if it is low, it means something happen.

    If there is no configuration, the ALERT is low to indicate that it is a blank device. 

    But once the configuration is programmed and reboot, the ALERT shall be HIGH.

    Regards

    Yihe