INTEGRATED CIRCUITSMOTION CONTROLLER
INFO
M A IN C H A R AC T ER IS T ICS
www.trinamic.com – for detailed information and datasheets
TMC429
Three Axis universal
motion controller
for stepper motor drivers
The TMC429 is a miniaturized low cost, high performance step-
per motor controller for up to three motors. It integrates all real
time critical tasks in reliable, dedicated hardware: An integrated
motion ramp profile generator as well as an adaptable micro-
step sequencer with microstep RAM table. Advanced stop- and
reference switch handling allows for precise and fast referencing
as well as on-the-fly position checking. Automatic motor current
control gives high motor dynamics while saving energy. The
interrupt output can generate precise position pulses.
The TMC429 is fully downwards compatible to the TMC428 and
connects to the recent coolStep™ drivers (TMC260, TMC262 and
TMC389) via Step- & Direction signals (S/D) or to the classic
TRINAMIC drivers TMC236, TMC239, TMC246 and TMC249 via
SPI™. The communication with the host microcontroller is done
with an extra SPI™ interface. The host just needs to do high-
level control tasks, e.g. giving the command: Drive motor 2 to
position 1000. The TMC429 automatically calculates the motion
ramp based on velocity and acceleration parameters.
• Minaturized low cost stepper motor control-
ler for up to three independant axes
• Built in ramp generators
• High-performance individual micro stepping
(up to 64x) via built in sequencer
• SPI™ host interface with easy-to-use protcol
• Step-/Direction or SPI™ driver interface
• On-the-fly alteration of target motion
parameters (e.g. position, velocity etc.)
• perfect fit for (2-phase drivers) TMC260,
TMC262, TMC236, TMC246, TMC239, TMC249
and (3-phase drivers) TMC389
• Fullstep frequencies up to 20 kHz
• Read-out of driver status
INTERFACE • Step & Direction outputs
• easy-to-use SPI™ (20bit)
ELECTRICAL
DATA
• Power down mode (100 µA)
• 3.3V or 5V operation with CMOS/TTL
compatible IOs
PACKAGE • QFN32 5x5 mm² chip size package
• SSOP16 or SOP24
with full TMC428 compatibility
• RoHS compliant
ORDER CODE DESCRIPTION
TMC429-I 3-axis controller SSOP16-package
TMC429-PI24 3-axis controller SOP24-package
TMC429-LI 3-axis controller QFN32-package
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