Vicor recommends a 4-layer PCB with a solid ground plane, and thermal vias to dissipate heat. A thermal interface material (TIM) should be used between the module and the heat sink. A heat sink with a thermal resistance of 1°C/W or lower is recommended.
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 prevent start-up during brownout conditions.
The PRM48BF480T500A00 has built-in EMI filtering, but additional filtering may be required to meet specific regulatory requirements. Vicor recommends using a common-mode choke and X-capacitors to meet CISPR 11 and CISPR 22 standards.
The PRM48BF480T500A00 has a built-in voltage sense pin and a current sense pin. These pins can be connected to a microcontroller or a dedicated monitoring IC to monitor the output voltage and current. Additionally, the PRM can be controlled using the enable pin and the trim pin.
The PRM48BF480T500A00 has a maximum operating temperature of 100°C. Derating is required above 70°C, and the module should be de-rated by 1.5% per degree Celsius above 70°C.
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PRM48BF480T500A00 Overview
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