The power consumption of LIS2MDL in power-down mode

[young]

Hi,everyone.

I measured the power consumption of LIS2MDLTR on the same board in power-down mode.

and found that the LIS2MDL chip on STEVAL-MKI217V1(from mouser) consumes less power than the LIS2MDL purchased separately from mouser.

We have some question and need your help.

1. ​ What is the power consumption LIS2MDL in power-down mode ？ 
2.  Why do the parameter differ between LIS2MDL chip on STEVAL-MKI217V1 and LIS2MDL purchased separately？

[Federica Bossi]

Hi @young ,

The typical current consumption in PD mode is 1.5uA, as written in the datasheet.

How much difference did you measure between the two parts? It could be part-part variability.

[young]

Hi,@Federica Bossi,

The consumption in PD mode that I measured is 70 ~ 80uA.

The power consumption of the component deviates significantly from the typical consumption.

 

[Federica Bossi]

Hi @young ,

How are you testing the LIS2MDL? There may be an error in your board design that is causing extra power consumption.