Cosel recommends a PCB layout with a large copper area connected to the tab of the SUS1R51205C to ensure good heat dissipation. A minimum of 1 oz copper thickness is recommended, and the copper area should be connected to a solid ground plane to reduce thermal resistance.
To ensure reliability in high-vibration environments, Cosel recommends securing the SUS1R51205C to the PCB using a screw or adhesive, and using a conformal coating to protect the device from moisture and contaminants. Additionally, the PCB should be designed to minimize flexure and stress on the component.
Cosel provides a derating curve in the datasheet, but it's limited to 40°C. For temperatures above 40°C, Cosel recommends derating the output power by 2.5% per degree Celsius to ensure reliable operation. For example, at 50°C, the output power should be derated by 25%.
Yes, the SUS1R51205C can be used in a parallel configuration to increase output power. However, Cosel recommends using a current-sharing scheme, such as a dedicated current-sharing IC or a resistive divider network, to ensure equal current distribution among the parallel devices.
Cosel recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF for the input capacitor. The capacitor should be rated for the input voltage and have a low equivalent series resistance (ESR) to minimize input ripple and ensure stable operation.
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