IMX8M MINI Power Consumption Calculations

[jming]

Hi,

Could you please let me know, How to calculate the power consumption in IMX8M mini processor,  I have an IMX8M mini design. The peripherals only use a camera with a CSI interface and Micro SD card. The power consumption of this design is a bit large, reaching 3.2W.  So how to Reduce SoC Power when only Running A53 on i.MX8M mini. 

Thank & Regards,

[Rita_Wang · Accepted solution]

You can see the application note https://www.nxp.com.cn/docs/en/application-note/AN12410.pdf

[Mihir2]

Hi NXP team,

We are using 'MIMX8MM5CVTKZAA' part in our design, without VPU.

The attached Appnote AN12410 is a good reference point for our design.

Appnote provides all the relevant power consumption for 'VDD_GPU_VPU_DRAM' power supply rail. If VPU is not being used, how shall we treat power consumption on these rails.

For example, Table-3 'IDLE_DEFAULT' condition in the appnote has a total current on 'VDD_GPU_VPU_DRAM' as 402 mA. 

How shall we consider the current?

1. 402 mA current on each VDD_GPU and VDD_DRAM power supply rails. 0mA on VDD_VPU.

2. 201 mA current on each VDD_GPU and VDD_DRAM rails and 0mA on VDD_VPU.

Regards,

Mihir

[jming]

@Rita_Wang 

Thank you,

This is a good reference, we are testing.