TMC428 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – Intelligent Triple Stepper Motor Controller with Serial Peripheral Interfaces

MOTION CONTROLLER
INTEGRATED CIRCUITS
TMC428
Three Axis
Stepper Motor Controller
with Integrated Sequencer
INFO The TMC428 is a revolutionary miniaturized low cost and high
performance stepper 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 microstep 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 TMC428 directly connects to SPI™ drivers
or to step-/direction drivers. A second SPI™ interface allows
communication with a host microcontroller. The host microcon-
troller just needs to do high-level control tasks, e.g. giving the
command: Drive motor 2 to position 1000. The TMC428 then
automatically calculates the motion ramp based on velocity and
acceleration parameters. The TMC423 adds encoder functionality
to the TMC428. Evaluation Boards, application notes, spread-
sheets for parameter calculation, C code examples and schema-
tics are available in order to support short design-in times.
REF 1,2,3
CLK
SPI
to µC
3,3..5V DC
Interrupt
controller
serial
µC
interface
Ramp-
&
Pulse-
generator
TMC428
Microstep-
Controller
(incl.
sequencer)
serial
Driver
interface
RAM
SPI
to driver
SPI
to driver
SPI
to driver
MAIN CHARACTERISTICS
• unique minaturized stepper motor
controller realized as low power 0.35µ
CMOS device
• up to three stepper motors
• up to 64 times microstepping
• full step frequencies up to 20 kHz
• alteration of parameters at any time
• driver status information
read back for µC
• power down mode
• ideally suited motor drivers are TMC236,
TMC239, TMC246 and TMC249
INTERFACE • SPI™ µC interface
• easy-to-use protocol for µC
• serial 4-wire driver interface (SPI™)
• step-/direction output
ELECTRICAL • 3.3V or 5V operation
DATA
• CMOS / TTL compatible IOs
PACKAGE • miniature SSOP16 package
• SO24 package available
• RoHS compliant
10 mm
ORDER CODE
TMC428-I
TMC428-PI24
TMC428A-EVAL
DESCRIPTION
3-axis controller SSOP16-package
3-axis controller SOP24-package
Evaluation board for TMC428, TMC246 and TMC249 with stallGuard™
www.trinamic.com – for detailed information and datasheets
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