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AFE4420EVM: I need some help in understanding PPG Sensor LED power calculation

Anurag Kumar
Prodigy 70 points
Part Number: AFE4420EVM
Other Parts Discussed in Thread: TIDA-010029

Hi,

I have been going through documentation of TIDA-010029.

And I came across following calculation.

TX_SUP= VLED+ VHR+ 0.3 = 3.2 + 0.625+ 0.3 = 4.125V

This part in the datasheet

Can someone please explain to me how this power had been calculated.

Regards,

Anurag