Motor control chip 3.3V

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arybinsky's Avatar (by Gravatar)arybinsky posted on
April 18, 2007, 5:18 am
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Hello,
I am in a desperate need for a DC motor control chip that runs out of
3.3v. More or less something like L293D which requires 5V. Has anybody
seen something like that?


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gidesa's Avatar (by Gravatar)gidesa posted on
April 18, 2007, 10:16 am
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Re: Motor control chip 3.3V


Do you want a chip using a power of 3.3v for itself, or to ooutput
3.3v
to the motors?
Anyway many chips can work in a range of power from a minimum to
a maximum. You can verify on the L293D datasheet what is its minimum
voltage.
Or you can use special chip to transform 3.3 to 5v.
Regards

gidesa


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arybinsky's Avatar (by Gravatar)arybinsky posted on
April 19, 2007, 12:10 pm
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Re: Motor control chip 3.3V

The motors are rated 6V. My board's logic runs 3.3v...



gidesa's Avatar (by Gravatar)gidesa posted on
April 24, 2007, 9:31 am
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Re: Motor control chip 3.3V


Today I have found this producer of DC-DC regulator:

http://www.dimensionengineering.com/AnyVoltMicro.htm

This seems to permit 3.3 to 5 conversion.
Regards


Robotguy's Avatar (by Gravatar)Robotguy posted on
April 18, 2007, 4:32 pm
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Re: Motor control chip 3.3V


Pololu makes several low voltage motor drivers like:
http://www.pololu.com/products/pololu/0410/
http://www.pololu.com/products/pololu/0120/

You might want to check them out...

-Robotguy
http://robotguy.net/blog


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