Advantech SOM-4450 Series, Design Manual

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Advantech SOM-ETX Design Guide
6.1 SOM Power Consumption ...................................................................115
Table 6.1 SOM series board Power Consumption ....................115
6.2 Design Guidelines ...............................................................................116
6.2.1 ATX Power Delivery Block Diagram ...........................................116
Figure 6-1 ATX Power Delivery Block Diagram.........................116
6.2.2 AT Power Delivery Block Diagram..............................................117
Figure 6-2 AT Power Delivery Block Diagram ...........................117
6.2.3 Non-used 3.3V Pins on SOM Connector ....................................117
Chapter 7 Carrier Board Mechanical Design Guidelines.................................118
7.1 SOM-ETX Mechanical Dimensions .....................................................118
Figure 7-1 SOM-ETX Carrier Board Mechanical Dimensions ...118
Table 7.1 connector types .........................................................118
Figure 7-2 ...................................................................................119
Figure 7-3 SOM-ETX Carrier Board Connector Mechanical
Dimensions .................................................................................119
7.1.1 Hirose FX8 and FX8C Series Information (reference to Hirose
Spec) ........................................................................................120
Table 7.2 Hirose FX8 and FX8C Series info..............................120
Table 7.3 Hirose FX8 and FX8C Series info..............................120
Figure 7-4 ...................................................................................121
Chapter 8 Heatsink Recommended Design......................................................122
8.1 Material of Heatsink.............................................................................122
8.2 Thermal Interface Material...................................................................123
8.3 Attachment Method of Thermal Solution .............................................123
8.4 Grounding Issues ................................................................................123
8.5 Air intake clearance and Airflow of Heatsink .......................................123
Figure 8-1 Air Intake Clearance.................................................124
Figure 8-2 Air Flow Direction .....................................................124
8.6 EXT-SOM Heatsink Specification........................................................124
Figure 8-3 SOM-ETX Heatsink ..................................................124
8.7 Advantech Heatsink Information..........................................................125
8.7.1 Heatsink......................................................................................125
Figure 8-4 Heatsink appearance ...............................................125
Figure 8-5 Heatsink Dimensions................................................126
Table 8.1 Chemical Makeup & Temper Designation .................126
Figure 8-6 Dimensions................................................................127
Table 8.2 Chemical Makeup & Temper Designation .................127
Figure 8-7 Dimensions................................................................128
Table 8.3 Mechanical Characteristics........................................128
Table 8.4 Chemical Makeup & Temper Designation .................128
Figure 8-8 Dimensions................................................................129
Table 8.5 Thermal pad................................................................129
8.7.2 Vendor List..................................................................................131
Table 8.6 Vendor list Aluminum Extruded Heat Sink,................131
8.7.3 Thermal Pad ...............................................................................131
Figure 8-9 Thermal Pad.............................................................131
Table 8.7 Thermal pad................................................................131
8.7.4 Screw ........................................................................................131
Table 8.8 Screw..........................................................................131
8.7.5 Fan ........................................................................................132
Figure 8-10 Fan .........................................................................132
Table 8.9 Fan Physical Characteristics ......................................132
8.7.6 Test Results................................................................................133
Table 8.10 Thermal Specifications ............................................133
Table 8.12 Test Results..............................................................133
8 Table of Contents