Murata Power Solutions

3

NCA005_6200830000.B01

Volant NCA005 Series

Non-Isolated 5A SIP/SMT DC/DC Converters

Standards Compliance

CSA C22.2, No.60950/UL 60950, Third Edition (2000)

Thermal Considerations

The power module operates in a variety of thermal environments; however, sufficient cooling should

be provided to help ensure reliable operation of the unit.

The thermal data presented is based on measurements taken at various airflows. Note that airflow is

parallel to the long axis of the module as shown in Figure 1 and derating applies accordingly.

Figure 1. Thermal Tests Set-Up.

The temperature at either TML location should not exceed 110

°C. The output power of the module

should not exceed the rated power for the module(Vo,set X Io,max).

Convection Requirements for Cooling

To predict the approximate cooling needed for the module, refer to the Power Derating Curves in

Figures 2-17 .

These derating curve are approximations of the ambient temperature and airflow required to keep the

power module temperature below it's maximum rating. Once the module is assembled in the actual

system, the module's temperature should be verified.

TML

TML