TMC261-PA Datasheet, PDF (1/53 Pages) TRINAMIC Motion Control GmbH & Co. KG. – POWER DRIVER FOR STEPPER MOTORS

POWER DRIVER FOR STEPPER MOTORS
INTEGRATED CIRCUITS
TMC260 / TMC260A & 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.
FEATURES AND BENEFITS
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 Dissipation, low RDSON & synchronous
rectification
EMI-optimized programmable slope
Protection & Diagnostics overcurrent, short to GND,
overtemperature & undervoltage
stallGuard2™ high precision sensorless motor load detection
coolStep™ load dependent current control for energy savings
up to 75%
microPlyer™ microstep interpolation for increased
smoothness with coarse step inputs.
spreadCycle™ high-precision chopper for best current sine
wave form and zero crossing
BLOCK DIAGRAM
VCC_IO
STEP
DIR
CSN
SCK
SDI
SDO
TMC260 / TMC261
Sine Table
4*256 entry
x
Chopper
Half Bridge 1
Half Bridge 1
Half Bridge 2
Half Bridge 2
SPI control,
Config & Diags
Protection
& Diagnostics
coolStep™
stallGuard2™
SG_TST
2 x Current
Comparator
2 x DAC
APPLICATIONS
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
DESCRIPTION
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.
*) TMC260 refers to TMC260 and TMC260A unless
otherwise noted. The TMC260A is 100% compatible.
+VM
VSA / B
OA1
OA2
2 Phase
Stepper
N
S
OB1
OB2
BRA / B
RSA / B
RSENSE
RSENSE
TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany