6 design considerations, 1 thermal management, 1 commercial grade module (36007-0000-18-2) – Kontron COMe-cPV2(v1.0) User Manual
Page 55: 2 industrial grade module (38009-0000-18-2), 2 heat spreader dimensions, Design considerations, Thermal management, Commercial grade module (36007-0000-18-2), Industrial grade module (38009-0000-18-2), Heat spreader dimensions
Kontron microETXexpress-PV User’s Guide
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51
6
Design Considerations
6.1
Thermal Management
6.1.1
Commercial Grade Module (36007-0000-18-2):
A heat spreader plate assembly is available from Kontron Embedded Modules for
the microETXexpress®-PV-XT COM. The heat spreader plate on top of this
assembly is NOT a heat sink. It works as a COM Express®-standard thermal
interface to be used with a heat sink or other cooling device.
External cooling must be provided to maintain the heat spreader plate at
proper operating temperatures. Under worst-case conditions, the cooling
mechanism must maintain an ambient air and heat spreader plate temperature of
60° C or less.
The aluminum slugs and thermal pads on the underside of the heat spreader
assembly implement thermal interfaces between the heat spreader plate and the
major heat-generating components on the microETXexpress®-PV-XT. About 80
percent of the power dissipated within the module is conducted to the heat
spreader plate and can be removed by the cooling solution.
Kontron also has defined a passive heat sink that can be used in place of the
heat spreader plate to provide additional cooling. You can use many thermal-
management solutions with the heat spreader plates, including active and
passive approaches. The optimum cooling solution varies, depending on the COM
Express® application and environmental conditions. Drawings for both the heat
spreader plate and the passive heat sink are available on request. Also, see
the PICMG COM Express® Design Guide on the PICMG website for further
information about thermal management.
6.1.2
Industrial Grade Module (38009-0000-18-2):
The module is designed to operate in an ambient temperature of -40°C up to
+85°C range. Accordingly, special attention needs to be given to design and
install an appropriate thermal solution and provide sufficient airflow the
module.
6.2
Heat Spreader Dimensions
Documentation for the microETXexpress®-PV-XT COM heat spreader and cooling