Evaluation Kits

The new TMC2660 integrates both a pre-driver for real-time calculation of motor coil current values, and power MOSFETS for amplification of coil outputs to directly drive an external motor.

Packaged in a single multi-chip module, the integrated driver/amplifier achieves the lowest power dissipation currently available for a 4A stepper motor driver. With an Rds(on) of 65mΩ, the TMC2660 dissipates just 2.8W at 4A, an 85% reduction compared with the most competitive solution previously available. The new device’s minimal power dissipation eliminates the need for a heat sink, enabling highly dense board designs and reduced component count and cost.

Special Features

  • stallGuard2™
  • coolStep™
  • spreadCycle™

Technical Details

Motor Supply9…29V
Phase Current, RMS2.8A
SPI yes
Step / Direction yes
stallGuard2™ yes
coolStep™ yes
spreadCycle™ yes



TMC2660 datasheet pdf1.6 MBJun 19, 2017 7:28 AM


PCB Layout V1.1 pdf230 KBNov 4, 2016 9:25 AM
EAGLE files V3.0 zip110 KBNov 8, 2016 3:14 PM
GERBER files V3.0 zip190 KBNov 8, 2016 3:14 PM
Schematic V3.0 pdf87 KBNov 8, 2016 3:14 PM
Layout data V3.0 zip290 KBNov 8, 2016 3:14 PM