POWER DRIVER FOR STEPPER MOTORS
INTEGRATED CIRCUITS
TMC262 DATASHEET
Universal, cost-effective stepper driver for two-phase bipolar motors with state-of-the-art features.
External MOSFETs fit different motor sizes. 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
High Current
up to 8A Motor current using external (N&P)
MOSFETs.
Highest Voltage
up to 60V DC operating voltage
Highest Resolution
up to 256 microsteps per full step
Smallest Size
5x5mm QFN32 package
Low Power Dissipation
synchronous rectification
EMI-optimized
slope & current controlled gate drivers
Protection & Diagnostics
overcurrent,
overtemperature & undervoltage
short
to
GND,
D
ESCRIPTION
The TMC262 driver for two-phase stepper
motors offers an industry-leading feature
set, including high-resolution micro-
stepping, sensorless mechanical load
measurement,
load-adaptive
power
optimization, and low-resonance chopper
operation. Standard SPI™ and STEP/DIR
interfaces simplify communication. The
TMC262 drives four external N- and P-
channel dual MOSFETs for motor currents
up to 8A and up to 60V. 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.
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
TMC262
VCC_IO
STEP
DIR
Step Multiplier
Gate driver
Gate Driver
HS
S
BM
N
Sine Table
4*256 entry
x
Chopper
Gate driver
Gate Driver
2 Phase
Stepper
LS
RS
CSN
SCK
SDI
SDO
SPI control,
Config & Diags
coolStep™
Protection
& Diagnostics
stallGuard2™
2 x Current
Comparator
2 x DAC
R
S
R
S
SG_TST
TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
