RECOM recommends a PCB layout with a large copper area for heat dissipation, and a minimum of 2oz copper thickness. The converter should be placed on a solid copper plane with multiple vias to the bottom layer for heat sinking.
To ensure reliable start-up and operation with a high-capacitance output filter, RECOM recommends adding a soft-start circuit or a ramp-up circuit to limit the inrush current. Additionally, the output capacitor should be selected with a low ESR to minimize voltage overshoot.
The maximum allowed voltage deviation on the input pins is ±10% of the nominal input voltage. Exceeding this deviation may affect the converter's performance, reliability, or even cause damage.
While the R0.5Z-2405 is rated for operation up to 85°C, RECOM recommends derating the output power by 2.5% per degree above 70°C to ensure reliable operation. Additionally, the converter should be mounted on a heat sink with a thermal resistance of ≤10°C/W.
RECOM recommends using an external OVP circuit, such as a zener diode or a dedicated OVP IC, to protect the load from overvoltage conditions. The OVP circuit should be designed to trigger at a voltage slightly above the nominal output voltage.
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