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Beginners / Re: 5V buck converter debugging
« Last post by davegravy on Today at 01:03:05 pm »QuoteThe Webench design (link) shows a 412kHz FswThe simulation link no-worky.
I tried WEBENCH using the highlighted part LM64460CPPQRYFRQ1
and it won't accept less than 6 V input.
WEBENCH also claims "simulation not enabled for this design"
So how did you get it to simulate to get the 412KHz Fsw ?
Strange, I used the "share public link" feature in Webench.
My design also says "simulation not enabled for this design". I assumed that TI has not programmed simulation capability for this IC, similar to how they don't have SPICE models for all their ICs. Do you think instead this is a sign the design is bad?
This is where I got the Fsw = 412KHz from, under "operating values"
Indeed I'm not operating at 16V, it's designed for a minimum of 8V input, but I can't get to 8V due to the massive current draw (and resulting IC failure) at anything above ~4V.