Vicor recommends a 4-layer PCB with a solid ground plane, and thermal vias under the module to dissipate heat. 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 module is fully powered before enabling the output.
The PI3545-00-LGIZ is designed to operate within a specific input voltage range. Exceeding this range may affect the module's efficiency, output voltage regulation, and reliability. It is essential to ensure the input voltage is within the recommended range to guarantee optimal performance.
Vicor recommends using a scope to monitor the input and output voltages, as well as the current drawn from the input. Additionally, checking the module's thermal performance and ensuring proper PCB layout and thermal management can help identify and resolve issues.
The PI3545-00-LGIZ is designed to meet CISPR 22 and FCC Part 15 Class B emissions standards. To minimize EMI and RFI, Vicor recommends using a shielded enclosure, proper PCB layout, and filtering on the input and output lines.
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PI3545-00-LGIZ Overview
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