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Power consumption in sleep mode with reference oscillator enabled on KW41

Question asked by Paul-Daniel Piscoi on Jun 28, 2018
Latest reply on Jul 9, 2018 by Gerardo Rodríguez

Hi,

On my KW41Z512M4 based board, in VLPS (bypass mode), I measure a power consumption of ~10 uA with the reference oscillator (OSC 32 MHz) disabled (which is OK, that's what I'm aiming for) and ~4 mA  when the oscillator is enabled (that is, enabled prior to entering sleep mode). 

 

What causes the huge current consumption in the second scenario? Isn't the OSC disabled in VLPS? Or maybe it's a XCVR issue I am overlooking?

 

Thanks,

Paul.

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