Document
POWER DRIVER FOR STEPPER MOTORS
INTEGRATED CIRCUITS
TMC2660 DATASHEET
Universal, cost-effective stepper driver for two-phase bipolar motors with state-of-the-art features. Integrated MOSFETs for up to 4 A motor current per coil. With Step/Dir Interface and SPI.
FEATURES AND BENEFITS
Drive Capability up to 4A motor current
Voltage up to 30V DC
Highest Resolution up to 256 microsteps per full step
Compact Size 10x10mm QFP-44 package
Low Power Dissipation, very 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
Step Multiplier
TMC2660
Sine Table 4*256 entry
x
Chopper
HaHlaf lBf rBidrigdege1 1 HaHlaf lBf rBidrigdege2 2
SPI control, Config & Diags
Protection & Diagnostics
coolStep™ stallGuard2™
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 TMC2660 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. Integrated power MOSFETs handle motor currents up to 2.2A RMS continuously or 2.8A RMS boost current 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.
+VM
VSA / B OA1 OA2
2 Phase Stepper
N S
OB1
OB2 BRA / B RSA / B
RSENSE
RSENSE
SG_TST
TRINAMIC Motion Control GmbH & Co. KG Hamburg, Germany
TMC2660 DATASHEET (Rev. 1.02 / 2013-OCT-30)
2
APPLICATION EXAMPLES: SMALL SIZE – BEST PERFORMANCE
The TMC2660 scores with power density, integrated power MOSFETs, and a versatility that covers a wide spectrum of applications and motor sizes, all while keeping costs down. Extensive support at the chips, board, and software levels enables rapid design cycles and fast time-to-market with competitive products. High energy efficiency from TRINAMIC’s coolStep technology delivers further cost savings in related systems such as power supplies and cooling.
TMC4210+TMC2660-EVAL EVALUATION-BOARD FOR 1 AXIS
Driver chain with TMC2660
This evaluation board is a development platform for applications based on the TMC2660. The board features U.