ROHM recommends a thermal pad on the bottom of the package, connected to a large copper area on the PCB to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended, and the thermal pad should be connected to a ground plane or a dedicated heat sink.
To ensure stable operation with a high-impedance input source, add a 1-10nF capacitor in parallel with the input resistor to reduce noise and oscillation. Additionally, consider adding a 10-100Ω resistor in series with the input to improve stability.
The maximum allowed voltage on the enable pin (EN) is 6V, which is higher than the recommended operating voltage of 5V. However, it's essential to ensure the EN pin voltage does not exceed 6V to prevent damage to the device.
While the BD48K36G-TL is rated for operation up to 125°C, it's essential to consider the derating of the device's performance and reliability at high temperatures. Consult ROHM's application notes and thermal management guidelines for high-temperature applications.
To minimize EMI, use a shielded layout, keep the input and output traces short, and avoid running sensitive signals near the device's power pins. Additionally, consider adding EMI filters or ferrite beads to the input and output lines.
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