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#1
 
12-10-2009, 06:23 PM
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You can contact Burt Cohen at LSI/CSI for samples of their new 8290 chip: burtc@lsicsi.com. He is looking for volunteers to sample the new stepper chip if you are willing to build a prototype. They want to test the chip before going to final production There are circuits for unipolar and a IR2104 based design in the data sheet (see attached). The chip has many modes for fast and slow decay.    |
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#2
12-11-2009, 04:36 PM
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| Very interesting. I have been working on a 3 axis board using a Parallax Propeller to drive 3 SLA7068 and control their settings. (I want to make it jumperless and with stand-alone control). The only downside for me was the Unipolar nature of the SLA chip. This would allow me to do Bipolar as well. |
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#3
02-22-2011, 12:26 AM
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| i received a few samples too. But im interested in Bipolar Drivers! |
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#4
02-23-2011, 07:22 PM
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| There is a reference design in that datasheet for a bipolar driver. Does anyone know what these chips will/do cost? |
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