Motorola MVME5100, Single Board Computer manual EThermal Analysis, Thermally Significant Components

EThermal Analysis

E

Ambient temperature, air flow, board electrical operation, and software operation affect board component temperatures. To evaluate the thermal performance of a circuit board assembly, you should test the board under actual operating conditions. These operating conditions vary depending on system design.

Motorola Computer Group performs thermal analysis in a representative system to verify operation within specified ranges. Refer to Specifications, Table A-1. You should evaluate the thermal performance of the board in your application.

This appendix gives systems integrators the information necessary to conduct thermal evaluations of the board in their specific system configuration. It identifies thermally significant components and lists the corresponding maximum allowable component operating temperatures. It also provides example procedures for component-level temperature measurements.

Thermally Significant Components

Table E-1summarizes components that show significant temperature rises. You should monitor these components to assess thermal performance. Table E-1also supplies the component reference designator and the maximum allowable operating temperature.

You can find components on the board by their reference designators. Refer to Figure E-1and Figure E-2.

E-1