/diy/ - Do It Yourself

Anonymous Fri Nov 29 20:51:41 2019 No.1725424 [View]
File: 20 KB, 728x421, R4 in LM5085.png [View same] [iqdb] [saucenao] [google]

So I'm trying to make this buck converter running in continous current mode work but I'm having difficulties selecting the R4 resistor value as shown in the picture.
The datasheet explained how to calculate the maximum ripple current but nowhere is it mentioned how to calculate the minimum ripple current Ior(min).
Does this mean I'm supposed to guess?
My Ior(max) is 1,4A and my inductor value is about 13,4uH.

http://www.ti.com/lit/ds/symlink/lm5085.pdf
There are no diagrams to get any values either.
I'm starting to believe that I am suppose to select Ior(min) myself.

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/diy/ - Do It Yourself

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