LIS3DH - Power Consumption

BToft · ‎2024-07-04

Dear Forum.

I use a LIS3DH connected with a Pic mainboard. I cummunicate with I2C and have set it up with interupt. I use 8mg, Lowpower and 50 hz odr.

I have a problems with Power Consumption. Before i insert the LIS3DH it use 3 microampere. After i have set it up with interupt i use 100 microampere. We use a STEVAL-MKI105V1 eval board.

How can i set it up so it only use 10 micro ampere.

Best regards

Bjarne

Profort.

Federica Bossi · ‎2024-07-05

Hi @BToft ,

That's sound strange LIS3DH in LP mode and ODR 50Hz should have a power consumption of 6uA. Can you share your schematic?

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BToft · ‎2024-07-05

I have here a diagram. It is a testmodule.

BToft · ‎2024-07-05

Federica Bossi · ‎2024-07-10

Hi @BToft ,

Can you try to connect also SDO and CS according to the datasheet?

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