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 voltage, it's essential to consider the voltage stress during switching transitions, which can be higher than the rated voltage. Consult with Bourns' application engineers or refer to their voltage derating guidelines for more information.
The SRF is typically not specified in the datasheet. You can estimate the SRF using the inductor's inductance and capacitance values. Consult with Bourns' application engineers or use simulation tools to determine the SRF and its impact on your design.
The inductor's thermal resistance (Rth) is specified in the datasheet. Ensure proper airflow, use thermal interfaces (e.g., thermal tape or thermal grease), and consider heat sinks or thermal management systems to keep the inductor within its operating temperature range.
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