Hello, could you tell me what the purpose of PWRCTL_POL? Is this to support external power switch's Enable polarity?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hello, could you tell me what the purpose of PWRCTL_POL? Is this to support external power switch's Enable polarity?
Hi,
PWRCTL_POL controls behavior of PWRCTL pins. This correct, this pins allow customer to support both active high and active low EN pins on there power switch. Connect a 4.7-kΩ pull-down resistor to GND or leave NC to use internal pull-up resistor. This indicates active high polarity for the PWRCTL pins on the downstream ports.