Bourns provides a recommended PCB layout and land pattern in their application notes. It's essential to follow these guidelines to ensure proper thermal management, minimize parasitic inductance, and optimize performance.
To minimize electromagnetic interference (EMI), keep the inductor at least 5 mm away from sensitive components. You can also use shielding techniques, such as copper tape or mu-metal shielding, to contain the magnetic field.
While the datasheet specifies a maximum rated current, it's essential to ensure the voltage across the inductor does not exceed the specified maximum. A general rule of thumb is to keep the voltage below 1.5 times the rated voltage to prevent saturation and ensure reliable operation.
The SRF is typically above the operating frequency range. However, if your design operates near the SRF, consider adding a damping resistor in series with the inductor to minimize resonance effects and ensure stability.
The inductor's thermal resistance (Rth) is specified in the datasheet. Ensure good thermal contact between the inductor and the PCB, and consider using thermal vias or a heat sink to dissipate heat efficiently.
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SDR1307-102KL Overview
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