Vybrid maximum current consumption

[vadimaleynikov]

The Vybrid datasheet (VYBRIDFSERIESEC) specifies in Table 15 Idd_RUN current values (typical and maximum). What are these values? If they are the 3.3V currents and include the Core and SDRAM currents via linear regulators?

[Nouchi]

Hello Vadim,

You'll probably find this application note useful :

http://cache.nxp.com/files/32bit/doc/app_note/AN4807.pdf?fpsp=1&WT_TYPE=Application%20Notes&WT_VENDO...

Emmanuel

[vadimaleynikov]

Thank you Emmanuel,

but unfortunately AN4807 doesn't answer my questions and I already know it. This AN specifies (similar to the datasheet) undefined "RUN" current in Table 2.

Best regards,

Vadim

[jiri-b36968 · Accepted solution]

Hello Vadim,

this is total current going into Vybrid SoC. It includes 1.2V rail current (core, platform) , 3.3V IO current (GPIO interface, internal LDOs, 1.5V IO current for DRAM interface).

SDRAM current itself is not included - it does not go into Vybrid SoC.

Max. value in DS represents absolute maximum current for full temp range.

A current consumption depends on your use case and a temperature. Some use cases were defined, tested and results published in AN4807. You can find use case which is near your use case to estimate power consumption.

/Jiri

[vadimaleynikov]

Hello Jiri,

Thank you very much for your exhaustive reply.

Best regards,

Vadim Aleynikov