Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Highlighted
Beginner
104 Views

EM2280 CTRL and VDD33 Questions

Jump to solution

Hello,

I have a couple of questions about the EM2280P01Q1 PowerSoC that I am looking at using in a new design.

1) In the default configuration (without any PMBUS control) is the VOUT On/Off only controlled by the CTRL pin?

2) Does the VDD33 output come up with VIN or when CTRL goes high?

3) Is there a example design available for the Default Configuration Mode?

Regards,

Roger Perry

0 Kudos

Accepted Solutions
Highlighted
90 Views

Hello Rperry,

The PMBUS is used to read back the telemetry or re-configure the device and not effecting the device functionality if not used.

  • EM2280 Vout is controlled by CTRL pin for on/off.
  • VDD33 always startup when VCC signal is exist and not controlled by CTRL signal.
  • Attached please find the reference design 

 

Thanks,

Mostafa 

 

View solution in original post

2 Replies
Highlighted
91 Views

Hello Rperry,

The PMBUS is used to read back the telemetry or re-configure the device and not effecting the device functionality if not used.

  • EM2280 Vout is controlled by CTRL pin for on/off.
  • VDD33 always startup when VCC signal is exist and not controlled by CTRL signal.
  • Attached please find the reference design 

 

Thanks,

Mostafa 

 

View solution in original post

Highlighted
Beginner
87 Views

Hello Mostafa,

Thanks very  much.

That answers my questions.

Regards,

Roger