Datasheet

TMC4361A Datasheet | Document Revision 1.22 • 2017-JAN-12
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Read entire documentation; especially the Supplemental Directives on page 224.
 SHORT SPEC 
Functional Scope of TMC4361A
TMC4361A is a miniaturized high-performance motion controller for stepper motor drivers,
particularly designed for fast and jerk-limited motion profile applications with a wide range
of ramp profiles. The S-shaped or sixPoint™ velocity profile, closed-loop and open-loop
features offer many configuration options to suit the user’s specifications, as presented
below:
S-shaped ramp profiles are jerk-free. Seven ramp segments form the S-shaped
ramp that can be optimally adapted to suit the user’s requirements. High torque
with high velocities can be reached by calibrating the bows of the ramp, as
explained in this user manual.
Figure 3: S-shaped Velocity Profile
i More information on ramp configurations and other velocity profiles, e.g.
sixPoint™ ramps, are provided in chapter 6 (Page 28).
A typical hardware setup for closed-loop operation with a TMC262 stepper motor
gate driver is shown in the diagram below. In case internal MOSFETs are desired,
combine the TMC4361A with the TMC2620, the TMC261 or the TMC2660.
Figure 4: Hardware Set-up for Closed-loop Operation with TMC262
A typical hardware setup for dcStep operation with a TMC2130 stepper motor driver
is shown in the diagram below. This feature is also available for TMC26x stepper
motor drivers.
Figure 5: Hardware Set-up for Open-loop Operation with TMC2130
Order Codes
Order code
Description
Size
TMC4361A-LA
Motion controller with closed-loop and dcStep features, QFN40
6 x 6 mm
2
Table 1: TMC4361A Order Codes
v(t)
t
VMAX
µC
TMC262
Motor Gate
Driver
MOSFET
Driver
Stage
High level
interface
M
TMC4361
Motion
Controller
Encoder
ABN/
SSI/SPI
SPI
SPI
µC
TMC2130
Motor Driver
High level
interface
M
TMC4361
Motion
Controller
SPI
SPI
dcStep™ signals
S/D
S-Shaped
Velocity Profile
Closed-loop
Operation
Feature
Open-loop
Operation with
dcStep™ Feature