Thread: Help! DIY 4 amp L297/6203 driver
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09-11-2009 #8
Last Activity: 26-12-2010
I'd missed that connector for some odd reason
I suspect that VREF does indeed go to 0V.
Q2 on the original can pull it low based on IC5A, and the PIC can pull down pin 3 of R23 (original).
I suspect that you may be able to get away without the PIC at all - it would mean that it would be powered up continually though (so you may need to get some meatier heatsinks).
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