POWER DRIVER FOR STEPPER MOTORS
INTEGRATED CIRCUITS
TMC260 & TMC261 DATASHEET
Universal, cost-effective stepper drivers for two-phase bipolar motors with state-of-the-art features.
Integrated MOSFETs for up to 2 A motor currents per coil. With Step/Dir Interface and SPI.
A
PPLICATIONS
Textile, Sewing Machines
Factory Automation
Lab Automation
Liquid Handling
Medical
Office Automation
Printer and Scanner
CCTV, Security
ATM, Cash recycler
POS
Pumps and Valves
Heliostat Controller
CNC Machines
F
EATURES
AND
B
ENEFITS
D
ESCRIPTION
The TMC260 and TMC261 drivers for two-
phase stepper motors offer an industry-
leading feature set, including high-
resolution
microstepping,
sensorless
mechanical load measurement, load-
adaptive power optimization, and low-
resonance chopper operation. Standard
SPI™ and STEP/DIR interfaces simplify
communication. Integrated power MOSFETs
handle motor currents up to 2A per coil.
Integrated protection and diagnostic
features support robust and reliable
operation. High integration, high energy
efficiency and small form factor enable
miniaturized designs with low external
component count for cost-effective and
highly competitive solutions.
Drive Capability
up to 2A motor current
Highest Voltage
up to 60V DC (TMC261) or 40V DC (TMC260)
Highest Resolution
up to 256 microsteps per full step
Compact Size
10x10mm QFP-44 package
Low Power
rectification
Dissipation,
low
RDSON
&
synchronous
EMI-optimized
programmable slope
Protection & Diagnostics
overcurrent,
overtemperature & undervoltage
short
to
GND,
stallGuard2™
high precision sensorless motor load detection
coolStep™
load dependent current control for energy savings
up to 75%
microPlyer™
microstep
interpolation
smoothness with coarse step inputs.
for
increased
spreadCycle™
high-precision chopper for best current sine
wave form and zero crossing
B
LOCK
D
IAGRAM
+V
M
TMC260 / TMC261
VCC_IO
Step Multiplier
Half Bridge 1
Half Bridge 1
VSA / B
OA1
OA2
2 Phase
Stepper
S
N
STEP
DIR
Sine Table
4*256 entry
x
Chopper
OB1
Half Bridge 2
Half Bridge 2
OB2
BRA / B
RSA / B
R
SENSE
R
SENSE
CSN
SCK
SDI
SDO
SPI control,
Config & Diags
coolStep™
Protection
& Diagnostics
stallGuard2™
2 x Current
Comparator
2 x DAC
SG_TST
TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
