Motion Controller for Stepper Motors
Integrated Circuits
TMC4361A DATASHEET
TMC4361A Document Revision 1.10 • 2016-NOV-10
SHORT SPEC
The S-ramp and sixPoint™ ramp motion controller for stepper motors is optimized for high
velocities, allowing on-the-fly changes. TMC4361A offers SPI and Step/Dir interfaces, as well
as an encoder interface for closed-loop operation.
NOTE:
TMC4361A is a product upgrade of TMC4361.
Features
SPI Interfaces for µC with easy-to-use protocol.
SPI Interfaces for SPI motor stepper drivers.
Encoder interface for incremental or serial encoders.
Closed-loop operation for Step and SPI drivers.
Integrated ChopSync™ and dcStep™ support.
Internal ramp generator generating S-shaped ramps
or sixPoint™ ramps supporting on-the-fly changes.
Controlled PWM output.
Reference switch handling.
Figure 1: Sample Image
TMC4361A Closed-Loop Drive
*Marking details are explained on page 222.
Hardware and virtual stop switches.
Extensive Support of TMC stepper motor drivers.
Applications
Textile, sewing machines
CCTV, security
Printers, scanners
ATM, cash recycler
Office automation
POS
Factory automation
Lab automation
Pumps and valves
Heliostat controllers
CNC machines
Robotics
Block Diagram: TMC4361A Interfaces & Features
START
Ref. Switches
TMC4361
Ref. Switch
Processing
dcStep
Step
Sequencer
Driver
Interface:
SPI /
SPI
SPI to
Master
S-Ramp
Timer Unit
SPI to µC
Current
Regulation
Generator
incl. trapezoid,
rectangle, 4bows
Step/Dir
Step/Dir
Status Flags
Interrupt
INTR / TR to µC
ABN
SSI
SPI
Encoder
Interface
Controller
CLK
NRST
Power-on
Reset
Safe Ramp Down
NFreeze
Closed Loop
Figure 2: Block Diagram
© 2015 TRINAMIC Motion Control GmbH & Co. KG, Hamburg,
Germany — Terms of delivery and rights to technical change
reserved. Download newest version at: www.trinamic.com.
Read entire documentation; especially the
Supplemental Directives in chapter 22 (page 223).
SHORT SPEC