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Hello Ray i have a question regarding the LM2596 inductor value. According to the datasheet the inductor value should be lower, why did you went to a higher inductance value.
Thanks for your time,
Javier.
The inductor value is chosen based on the maximum current output. The higher the current output the lower the inductance. Although LM2596 is capable of 3A maximum output current, OpenSprinkler is only designed to provide up to 1A, so on the inductor selection graph of the datasheet, we are looking at the upper-left corner of the graph, and that’s 100 to 150uH.
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