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Maximum LED Forward Voltage
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Question

What is the maximum LED forward voltage I need to accommodate?
What should I use as the LED supply voltage?

The maximum forward voltage of my selected RS-1515MBAM LEDs is .

Consequently, I have the inequality

I suspect it will be easiest to supply

as I can directly negotiate this voltage from the USB Power Delivery supply.

Power Supply Regulation

The must be set to the voltage calculated by