ROHM recommends a PCB layout with a thermal pad connected to a large copper area on the bottom layer, and multiple vias to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended.
To ensure stable operation with a high-impedance input source, add a 1kΩ to 10kΩ resistor in series with the input pin to prevent oscillation. Additionally, consider adding a 10nF to 100nF capacitor in parallel with the input pin to filter out high-frequency noise.
The maximum allowed voltage on the enable pin (EN) is 6V, which is the maximum rating for the internal voltage regulator. Exceeding this voltage may damage the device.
While the BD80C0AWFP-CE2 is rated for operation up to 125°C, it's essential to consider the derating of the maximum power dissipation and the reduction of the output current capability at high temperatures. Consult the datasheet and ROHM's application notes for more information.
To prevent latch-up during power-on and power-off transitions, ensure that the input voltage (VIN) and the enable pin (EN) are ramped up and down slowly (e.g., 1ms to 10ms) to prevent voltage spikes and noise. Additionally, consider adding a 10kΩ to 100kΩ pull-down resistor on the enable pin to prevent unwanted triggering.
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BD80C0AWFP-CE2 Overview
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