kenemon 29 Posted December 1, 2011 Share Posted December 1, 2011 Hi All, Thought that I would share a TI motor driver PCB breakout, inspired by GW. It is made for the DRV8833 dual H-bridge stepper/dual brushed PWM controlled IC. Using the PowerPad heatsink technology, this baby should handle the larger gearhead motors (it worked for my solar tracker). It is rated at 2A. I used the msp430g2231 for PWM control. I also made the bottom a huge heatsink if you can see through the purple haze. Subliminally, I cant decide if I am a bigger NW or U of I fan (being a CU alum??). http://www.ti.com/product/drv8833 bluehash 1 Quote Link to post Share on other sites
dmitrykit 0 Posted December 1, 2011 Share Posted December 1, 2011 Good board, where can get similar? i need some for drv8825 Quote Link to post Share on other sites
kenemon 29 Posted December 1, 2011 Author Share Posted December 1, 2011 You probably have to have one made, and it takes a couple weeks or so to get. You could use basic 28pin ssop adapter boards that go for about $1 each, but you may need to drill a hole in the bottom and fashion a heatsink yourself. This worked for me when I wanted to evaluate the chip, but it is a little tricky..... What are you microstepping? Quote Link to post Share on other sites
bluehash 1,581 Posted December 4, 2011 Share Posted December 4, 2011 I see them.. dork bot purple. Let us know how the power pad works out. Quote Link to post Share on other sites
kenemon 29 Posted December 4, 2011 Author Share Posted December 4, 2011 Dork bot really came through for me, about the same time it takes from China, but I didn't need to spend $15, and get ten extras.... I used the lodestar mechanics solder, spread a thin trail on the pins, and a drop on the PPad, 450 degrees 2 minutes, and I had a perfect cookie. tested it, and all seems well. Didn't seem to heat up using 9V battery as source V. I am trying a circular PCB for a design i have been fumbling, but there may be an issue with rendering the 2 segment arcs the designspark uses to make a circle. Quote Link to post Share on other sites
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