Vicor recommends a 4-layer PCB with a solid ground plane, and thermal vias under the module to dissipate heat. A minimum of 1 oz copper thickness is recommended. Additionally, a thermal interface material (TIM) should be used between the module and the heat sink.
To ensure reliable start-up and shutdown, Vicor recommends a soft-start circuit to limit inrush current, and a voltage supervisor to monitor the input voltage and ensure the converter is enabled only when the input voltage is within the specified range.
Operating the converter in high-temperature environments can reduce its reliability and lifespan. Vicor recommends derating the output power by 1% per degree Celsius above 40°C to ensure reliable operation. Additionally, the converter's thermal shutdown feature should be enabled to prevent damage from overheating.
Vicor recommends using a scope to monitor the input and output voltages, and the current sense pins to diagnose issues. Additionally, the converter's built-in fault monitoring pins can be used to detect and diagnose faults such as overvoltage, undervoltage, and overcurrent conditions.
Vicor recommends following proper EMI and EMC design practices, such as using a shielded enclosure, minimizing loop areas, and using EMI filters to reduce radiated emissions. Additionally, the converter's switching frequency can be synchronized to reduce EMI.
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