CMDMW Datasheet, PDF (5/6 Pages) Wall Industries,Inc. – Chassis Mount DC/DC Converter

Rev. B
CMDMW Series
15 Watt Single Output
Chassis Mount DC/DC Converter
4:1 Ultra Wide Input Voltage Range
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0Ω at 100 KHz) to simulate source
impedance.
Capacitor Cin offsets possible battery impedance.
Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF ceramic capacitor.
Scope measurement should be made by using a BNC socket; measurement bandwidth is 0-20 MHz. Position the load between 50 mm and
75 mm from the DC/DC Converter.
Thermal Considerations
Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module, and board spacing. To
avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below
100°C. The derating curves are determined from measurements obtained in an experimental apparatus.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax [phone]