Comparison

SilentStepStick TMC2100 (5V) TMC2100 (3-5V) TMC2130 (3-5V) TMC2208 (3-5V)
SilentStepStick (bottom view) SSS SSS SSS SSS
Interface Step/Dir Step/Dir Step/Dir or SPI Step/Dir
Configuration CFG Pins CFG Pins CFG Pins or SPI CFG Pins or UART
Native Microsteps* up to 116 up to 116 up to 1256 up to 1256
microPlyer Microsteps 1256 1256 1256 1256
Logic Supply Voltage (VIO) 5V 3 - 5V 3 - 5V 3 - 5V
Motor Supply Voltage (VM) 4.75 - 46V 5.5 - 46V 5.5 - 46V 5.5 - 36V
Motor Phase Current max 1.2A RMS, 2.5A Peak 1.2A RMS, 2.5A Peak 1.2A RMS, 2.5A Peak 1.2A RMS, 2.0A Peak
Internal V-Regulator** disabled enabled enabled enabled
RDSon >=0.5 Ohm >=0.5 Ohm >=0.5 Ohm <=0.3 Ohm
stealthChop (quiet) yes yes yes yes
spreadCycle yes yes yes yes
coolStep - - yes -
stallGuard - - yes -
dcStep - - yes -

* without interpolation (microPlyer)

** Motor Supply Voltage (VM) is always needed, when the internal voltage regulator is enabled/used