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i.MX8 SMARC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
3.2 Environmental Characteristics
3.2.1 Environmental Specification
The below table provides the Environment specification of i.MX8M SMARC SOM.
Table 13: Environmental Specification
Parameters Min
Max
Operating temperature range (Industrial)
1
-40°C 85°C
¹ iWave guarantees the component selection for the given operating temperature. The operating temperature at the
system level will be affected by the various system components like carrier board and its components, system enclosure,
air circulation in the system, system power supply etc. Based on the system design, specific heat dissipating approach
might be required from system to system. It is recommended to do the necessary system level thermal simulation and
find necessary thermal solution in the system before using this board in the end application.
² If Expansion connectors are supported in i.MX8M SMARC SOM, operating temperature range is -35°C to 85°C. If Micro
SD connector is supported in i.MX8M SMARC SOM, operating temperature range is -25°C to 85°C.
3
For more information on Thermal solution & Heat sink refer the following section.
3.2.2 Heat Sink
For any highly integrated System On Modules, thermal design is very important factor. As IC’s size is decreasing and
performance of module is increasing by rising processor frequencies, it generates high amount of heat which should
be dissipated for the system to work as expected without fault.
To dissipate the heat, appropriate thermal management technique like Heat spreader, Heat sink must be used. Always
remember that more effective thermal solution will give more performance out of the CPU.
Heat spreader acts as thermal coupling device between Module and external thermal solution. Heat spreader also
provides thermal coupling to CPU via gap filler for better heat exchange. Heat spreader is not a complete thermal
solution by itself. Heat spreader has to be used with application specific thermal solutions like heat sinks, Chassis, fans,
Heat pipes etc.
Note: iWave supports Heat Sink Solution for i.MX8M SMARC SOM. For more information on Heat Sink contact iWave
support team. Do not Power On the SOM without a proper thermal solution. mm