CUI Inc recommends a PCB layout with a minimum of 2 oz copper thickness, a 1-inch square copper pad under the module, and a 1-inch wide copper trace connecting the pad to the input capacitor. This layout helps to dissipate heat efficiently and ensures reliable operation.
To ensure reliability in high-vibration environments, CUI Inc recommends securing the module to the PCB using screws or adhesive, and using a PCB material with high stiffness and vibration resistance. Additionally, conformal coating the PCB can help protect the module from vibration-induced damage.
The maximum allowable capacitance for the input filter capacitor is 100 μF. Exceeding this value may cause instability or oscillation in the module's output voltage.
While it's possible to use a different output capacitor type or value, it's not recommended. The recommended output capacitor values and types are carefully selected to ensure the module's stability and performance. Using a different capacitor may affect the module's output voltage regulation, ripple, and noise performance.
To troubleshoot output voltage deviations or instability issues, check the input voltage, output load, and PCB layout for any anomalies. Verify that the input filter capacitor and output capacitor values meet the recommended specifications. Also, ensure that the module is properly soldered and secured to the PCB. If issues persist, contact CUI Inc's technical support for further assistance.
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PDME2-S12-D5-S Overview
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