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DCMA01-15D159HI Datasheet(PDF) 4 Page - Wall Industries,Inc. |
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DCMA01-15D159HI Datasheet(HTML) 4 Page - Wall Industries,Inc. |
4 / 5 page Rev A DCMA01-HI SERIES 1 Watt DC/DC Converter Single and Dual Output 10/14/2016 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: sales@wallindustries.com Page 4 of 5 TEST SETUP Peak-to-Peak Output Noise Measurement Test Use a Cout 0.33µF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0- 20MHz. Position the load between 50mm and 75mm from the DC/DC Converter. TERMINAL BLOCK OPTIONS Maximum Capacitive Load The DCMA01-HI series has limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. The maximum can be found in the data sheet. Input Source Impedance The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module. In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup. Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR <1.0Ω at 100KHz) capacitor of a 2.2µF for the 5V input devices, a 1.0µF for the 12V, 15V input devices and a 0.4µF for the 24V devices. Output Ripple Reduction A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance. To reduce output ripple, it is recommended to use 1.0µF capacitors at the output. 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 100ºC. The derating curves are determined from measurements obtained in a test setup. |
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