High voltage motor driver design using TMC2130

The good old TMC2130 chip has fallen out of favor thanks to newcomers like the TMC2208/9. It is still top-shelf stuff and the preferred driver by Prusa for the Einsy Rambo as well as their MMU control board.

New chips are cheaper and cad drive more current, but the 2130 sill has one thing you can’t beat – it can handle voltages up to 46V.

Here is an example of a motor driver in the same PCIe form factor with external 3.5mm power terminal block. This allows the driver to use high voltage for example 36V or 42V to drive beefier motor.

The solder jumper on the bottom can be shorted and then the driver would take power from the carrier board.

2 Replies to “High voltage motor driver design using TMC2130”

    1. I would assume you meant vref. The current limit on all drivers is set in the firmware by communication with the driver chip. In case of 2660 and 2130 the communication is via SPI, the 2209 uses UART.

      The vref pin was there for compatibility with older designs like the A4988.

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