Tool/software:
Hi
Does TUSB4041I have a debounce time on OVERCURxz pin?
How long should I assert OVERCURxz pin when the over-current event has occurred?
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Hi Eugege:
Overcurrz pin is input active low, as long as the hub detect Overcurrent signal from the Vbus switch , it will turn off the power switch control signal.
What is customer concern for overcurrent?
Regards
brian
Hi Eugene:
Once hub detect Overcurrz goes low, it will turn PWRCTLx pin low to reset the vbus switch. If the overcurrent issue is not cleared , FAULT_N pin may still low. So it depends on when the overcurrent issue is cleard.
Regards
Brian
Hi Eugene:
There is no spec for overcurrent.
Once over current happens, the fault signal of vbus switch goes low, the fault signal will keep low until the hub detect the overcurrent and use PWRCTL pin to reset the vbus switch. After vbus switch got reset, fault pin back to high again.
Vbus fault pin is connected to OVERCURR pf hub.
Regards
Brian