ROHM recommends a thermal pad size of 2.5mm x 2.5mm with a minimum of 10 thermal vias (0.3mm diameter) to ensure efficient heat dissipation. Additionally, a solid copper plane on the bottom layer can help to further reduce thermal resistance.
To ensure reliable operation in high-temperature environments, it's essential to follow the recommended derating curves for the device. ROHM also recommends using a heat sink or thermal interface material to reduce the junction temperature. Additionally, consider using a thermistor or temperature sensor to monitor the device temperature and implement thermal protection mechanisms if necessary.
ROHM recommends soldering the RB522FS-30T27R using a reflow soldering process with a peak temperature of 260°C (500°F) and a dwell time of 30-60 seconds. The recommended soldering profile is: 150°C (302°F) for 60-90 seconds, 180°C (356°F) for 60-90 seconds, and 220°C (428°F) for 30-60 seconds.
The RB522FS-30T27R requires a specific power sequencing to prevent damage or malfunction. ROHM recommends applying the input voltage (VIN) before the enable signal (EN) and ensuring that the input voltage is stable before enabling the device. Additionally, ensure that the output voltage (VOUT) is not loaded during power-up or power-down sequences.
ROHM recommends using a 10uF ceramic capacitor with a voltage rating of 50V or higher for the input capacitor (CIN). For the output capacitor (COUT), a 22uF ceramic capacitor with a voltage rating of 30V or higher is recommended. The capacitor values and types may vary depending on the specific application requirements and operating conditions.
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RB522FS-30T27R Overview
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