Murata Power Solutions

3

NFA016_6200890000_B01_21/04/08

Non-Isolated 16A SIP/SMT DC/DC Converters

VOLANT NFA016 Series

Standards Compliance

CSA C22.2, No.60950/UL 60950, Third Edition (2000), File UL E165113

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 location should not exceed 110

qC. Over-temperature shutdown is

evaluated at these locations. 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.