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Wilink8 power consumption

Serge Croteau1
Prodigy 110 points
The datasheet talks about a 850mA peak power every 5 minutes.
This is more than 600mA above normal operation of the chip.
I see no mention of which rail gets this peak power (1.8V or 3.3V)
I also see no mention anywhere about how much time this peak last.
This is critical to calculate the power supply.
I am now very close to the PMIC limits of 2A at 5V when I add up all maximum power consumption of every circuits.
Also, is there a software control and/or notification available when this happens so I can shutdown something else?
  • 0
    TI__Guru* 85400 points

    Hi,

    What module are you using?
    The requirement worse case is for MIMO ( ~600 mA ) at continuous TX on extreme temp from VBAT.

    There is also calibration current for ~100uS reaching ~850 mA.

    Regards,
    Gigi Joseph.

  • 0 in reply to Joseph Gigi
    Prodigy 110 points

    We are planning to use the WL1831MOD to limit the system power consumption.  The questions were about the calibration current.  Since this calibration process happens every 5 minutes, we want to know if we have any control on the timing of that calibration event to make sure we turn off other devices when this happens.

    Thanks,