TMC2620 pages

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.

APPLICATIONS

FEATURES

AND

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

BENEFITS

High Current up to 8A Motor current using external (N&P)
MOSFETs.

DESCRIPTION
The TMC262 driver for two-phase stepper
motors offers 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. The
TMC262 drives four external N- and Pchannel 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.

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,

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

BLOCK DIAGRAM
+VM

TMC262
STEP
DIR

CSN
SCK
SDI
SDO

Step Multiplier

VCC_IO

Gate driver
Gate Driver

Sine Table
4*256 entry

SPI control,
Config & Diags

Protection
& Diagnostics

x

HS
S

Chopper

N

BM
Gate driver
Gate Driver

2 Phase
Stepper
LS

coolStep™

RS

stallGuard2™

2 x Current
Comparator

SG_TST

TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany

2 x DAC

RS

RS