HobbyCNC

PRO Chopper Driver Board

Now we move on to the last components, the driver chips. The four drivers go at positions U1, U2, U3 and U4. With the pin layout on the chips, they can only be installed to the board in one direction. Carefully install each chip ensuring that each pin is inserted correctly into the PCB.

01 – 02 – 03 – 04 – 05 – 06 – 07 – 08 – 09 – 10 – 11 – 12 – 13 – 14
15 – 16 – 17 – 18 – 19 – 20 – 21 – 22 – 23 – 24 – 25 – 26 – 27