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Heat Produced by FlexDrive?






chipdouglas

chipdouglas

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Wolfman29 said:
Hey everyone.

Despite my build record, I have never used a FlexDrive before... and the build I am working on right now is the first one.

Now, I have it all set up to output around 413mA (for an LPC), and I have heatsinked the six-pin chip like is usually advised (used a small piece of copper). But, in order to prevent shorts, I wrapped it in electrical tape.

I am planning on using this laser with no duty cycles... at this current (using a 14500 cell for input), will the driver EVER overheat?
Click to expand...

Wolfman29 said:
I do not. But that shouldn't be a problem. Point is, even if it is both electrically and thermally insulated by electrical tape (I mean completely covered), will it be able to have an unlimited duty cycle at 413mA?
Click to expand...

Wolfman29 said:
I figure that I will be pumping out something like 300mA or so of current, and with a crappy 14500, I figure I should be able to pump that out for an hour or so. Maybe more?
Click to expand...

idk, what are the 14500's 700ma? if you are going to be doing 60 mn runs, i would advise putting a plug socket on the host and plug it in.

but to address your real question, i would say that you are running the flexdrive at a third of its rated current and duty cycle shouldn't be an issue.
 
Wolfman29

Wolfman29

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I don't really *plan* on doing 60 minute runs. But, I just don't want to be limited by a duty cycle. I want to put this laser to the ultimate test.
 
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