From the manual,
The TMC5272-EVAL has the option to use two power inputs. You need to use both if you want to use the TMC5272 at low voltages. This is necessary as the Landungsbruecke needs a minimum voltage of 8 V via the Eselsbruecke connector to operate correctly.
The TMC5272-EVAL has the option to use two power inputs. You need to use both if you want to use the TMC5272 at low voltages. This is necessary as the Landungsbruecke needs a minimum voltage of 8 V via the Eselsbruecke connector to operate correctly.
With direction from ADI, the kit supplied will be assuming the design of using one power supply. Consider it a minimal-viable-product approach.
Since we're supplying a 'kit' to work from as a basic example to use in whatever the competitor's designs are, we of course welcome anyone going beyond what's supplied in the kit if you have the capabilities and hardware to suitably create a design that facilitates that 
Glad to see that you're reading through the user guide!
The TMC5272-EVAL has the option to use two power inputs. You need to use both if you want to use the TMC5272 at low voltages. This is necessary as the Landungsbruecke needs a minimum voltage of 8 V via the Eselsbruecke connector to operate correctly.
With direction from ADI, the kit supplied will be assuming the design of using one power supply. Consider it a minimal-viable-product approach.
Since we're supplying a 'kit' to work from as a basic example to use in whatever the competitor's designs are, we of course welcome anyone going beyond what's supplied in the kit if you have the capabilities and hardware to suitably create a design that facilitates that
Glad to see that you're reading through the user guide!
