AnsweredAssumed Answered

VDD_HIGH_IN, VDD_SNVS_IN connection

Question asked by H on Apr 25, 2018
Latest reply on Apr 25, 2018 by gusarambula

Hi,

Referring to item #2 in "Table 2-6. Power and decouple recommendations" in the iMX6 hardware development guide:

https://www.nxp.com/docs/en/user-guide/IMX6DQ6SDLHDG.pdf 

 

"When VDD_HIGH_IN > VDD_SNVS_IN, VDD_HIGH_IN supplies all SNVS domain current and current flows into VDD_SNVS_IN to charge a coin cell battery"

 

In case of not using a coin-cell and supplying VDD_SNVS_IN pins in IMX6 only from PMIC PMPF0100 VSNVS 3.0V regulator, is it allowed for VDD_HIGH_IN to be fed from a different power supply greater than VDD_SNVS_IN?

In case it is allowed but not recommended can you please explain why?

 

Thanks for your support,

Aviad

Outcomes