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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
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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
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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
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Hello Mostafa,
Thanks very much.
That answers my questions.
Regards,
Roger

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