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CC2340R5: Current consumption vs Temperature

Ranjith R Nair
Prodigy 60 points
Part Number: CC2340R5


Hi,

I couldn't find details of the variation of current consumption of CC2340R5 controller with temperature. How much increase in consumption should i consider when operating at 80C, 105C and 125C?

 

  

  • +1
    TI__Expert 6520 points

    Hi Ranjith,

    The curves for typical devices over temperature will be published in the next revision of the data sheet. Generally speaking the curve will be similar to our other wireless devices. In the meantime the values we have measured for typical devices with a VDDS of 3.0 V and the device in standby is, approximately 2 uA @ 80C, 4 uA @ 105C and 10 uA @125 C.

    Best Regards,

    Jake

  • 0 in reply to Jake Pulliam
    Prodigy 60 points

    Is this using internal DCDC or GLDO? also can i consider similar variation in active current consumption

  • 0 in reply to Ranjith R Nair
    TI__Expert 6520 points

    Hi Ranjith,

    This was with DCDC off, DCDC uses the 48 MHz clock which is off in standby mode. Current will increase over temperature in active mode but not with the same exponential rise. In standby mode the current consumption is highly dependent on temperature since it is dominated by the leakage current. You can compare and see this in one of our other device data sheets such as https://www.ti.com/lit/ds/symlink/cc2674r10.pdf. While the values will be different the shape of the curves will be similar. The CC2340R5 data sheet will be updated with similar plots in the next release.

    Best Regards,

    Jake