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Don't Know The "On Time"

T

TastyWheat

Jan 1, 1970
0
I'm looking into making a battery-powered USB charger and I kind of
settled on a NCP1400A DC/DC converter. Bear in mind I have very
little electronics knowledge. The documentation gives me suggestions
on what external parts to use and I'm stuck on the inductor. I need
to calculate Ipk (peak inductor current) but I need to know the value
of Ton first. I assume it's referring to "on time". The doc doesn't
mention "on time" and I have no idea how to calculate "on time". Can
someone give me a clue?
 
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