A nice IC to drive steppermotors or dc motors : DRV8834.

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May 11, 2008
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At work we are going to use this IC for a project : DRV8834.
I once again have the pleasure to think up the design. ^_^.

This IC is really a nice and easy IC, since although it packs a lot of hardware in a tiny QFN 4mmx4mmx1mm package. You can customize it fully.
Voltage is between 2.7V and 10.8V.
Current of the motors is 1.5A continuous at 5V supply.
Manufacturer is Texas Instruments.
Very nice is the internal chargepump, so 4 N-mosfets are used for each H-bridge.
The charge pump creates a voltage above the supply voltage to supply the drivers of the upper N-mosfets in the H-bridges.
I will be using this IC for my own projects as well. :)

http://www.ti.com/product/drv8834

datasheet :
www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=drv8834&fileType=pdf

By setting the level of the config pin, the ic can be used for one bipolar stepper motor or 2 dc motors. Maximum current can be set and controlled.

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May 11, 2008
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I was looking for the datasheet to store here locally at home in my library, and the texas instruments website was down i think. So i downloaded the datasheet from polulu. And what do you know, for 5.95 dollars, they have a nice breakout board with this ic.

https://www.pololu.com/product/2134

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If you need a little more oompf for a brushed dc motor : DRV8801.
This IC can deliver 2A output with a maximum voltage of 36V. This ic is very hard to damage. And it has a tiny 16 pin Qfn package.

http://www.ti.com/product/drv8801
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http://www.infineon.com/cms/en/prod...?productType=db3a304414ce7fd301153da68b8f2af1
Another possibility might be the TLE 5205-2G
This IC can do up to 5A current maximum for a brushed dc motor with operating voltages up to 40V. It is in P-TO263-7 , 7pin smt package available. Very robust, since it is meant for the automotive market.
Very rare unfortunately. But as it happens mouser has a lot in stock now.
 
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