Has anyone tried this version of the drive?
PiBot TOSHIBA6600 TB6600 0-4.5A stepper motor driver for 3D printer and CNC Better Than A4988,It can drive 0-4.5A current, good heat dissipation to ensure long working hours for NEMA14, NEMA17 and other variety of stepper motor,


I have a few of the common HY-DIV268N versions that are crap (30% output) but this piBot one seems to have a different standby circuit

They provide a copy of the schematic and don't seem to use the 30/100 TQ pin. Instead they use some kind of pulse stretcher on the current setting pin.

The description says it cut the current in half, but I am not to sure how that circuit works.

Just looking to see what others thought of the drive since it is a very good price.




Thanks
Dave