Datasheet

POWER DRIVER FOR STEPPER MOTORS INTEGRATED CIRCUITS
TRINAMIC Motion Control GmbH & Co. KG
Hamburg, Germany
TMC262 / TMC262C DATASHEET
BLOCK DIAGRAM
FEATURES AND BENEFITS
High Motor Current up to 10A using external (N&P) MOSFETs.
Highest Voltage up to 60V DC operating voltage
Highest Resolution up to 256 microsteps per full step
Small Size 5x5mm QFN32 package
Low Power Dissipation synchronous rectification
EMI-optimized slope & current controlled gate drivers
Protection & Diagnostics short to GND, overtemperature &
undervoltage; short to VS & overcurrent (TMC262C only)
StallGuard2 high precision sensorless motor load detection
CoolStep load dependent current control saves up to 75%
MicroPlyer 256 microstep smoothness with 1/16 step input.
SpreadCycle high-precision chopper for best current sine
wave form and zero crossing
Improved Silent Motor operation (TMC262C only)
Clock Failsafe option for external clock (TMC262C only)
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 TMC262/TMC262C drivers for two-phase
stepper motors offer an industry-leading
feature set, including high-resolution
micro-stepping, sensorless mechanical load
measurement, load-adaptive power opti-
mization, and low-resonance chopper ope-
ration. Standard SPI™ and STEP/DIR
interfaces simplify communication. The
TMC262 uses four external N- and P-
channel dual-MOSFETs for motor currents
up to 8A RMS 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.
The new C device improves motor silence
and adds low side short protection.
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.
Gate driver
Gate driver
Gate Driver
Gate Driver
2 x Current
Comparator
Protection
& Diagnostics
Sine Table
4*256 entry
STEP
DIR
2 x DAC
SPI control,
Config & Diags
CSN
SCK
SDO
SDI
stallGuard2
coolStep™
x
Step Multiplier
SG_TST
Chopper
VCC_IO
+V
M
HS
LS
2 Phase
Stepper
N
S
BM
R
S
R
S
RS
TMC262

Summary of content (62 pages)