Bourns provides a recommended PCB layout and land pattern in their application notes. It's essential to follow these guidelines to ensure optimal performance, low noise, and minimal electromagnetic interference (EMI).
To minimize the impact of SRF, ensure the inductor is used below its SRF. You can also use a series resistor or a parallel capacitor to dampen the resonance. Additionally, consider using a shielded inductor or a different inductor with a higher SRF.
The maximum allowable current is determined by the inductor's temperature rise and DC resistance. Calculate the maximum current by considering the inductor's DC resistance, temperature rise, and the desired operating temperature. Bourns provides a current calculation formula in their application notes.
To avoid core saturation, ensure the peak current does not exceed the inductor's saturation current. You can calculate the saturation current using the inductor's core material, size, and number of turns. Consider using an inductor with a larger core size or a different core material to increase the saturation current.
The PM2110-390K-RC has an MSL rating of 1, which means it can withstand normal humidity levels. However, it's still essential to follow proper storage and handling procedures to prevent moisture absorption. Follow the IPC/JEDEC J-STD-020 standard for moisture-sensitive devices.
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PM2110-390K-RC Overview
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