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 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 FEATURES AND BENEFITS High Current up to 8A Motor current using external (N&P) DESCRIPTION MOSFETs. The TMC262 driver for two-phase stepper Highest Voltage up to 60V DC operating voltage motors offers an industry-leading feature Highest Resolution up to 256 microsteps per full step set, including high-resolution micro- stepping, sensorless mechanical load Smallest Size 5x5mm QFN32 package measurement, load-adaptive power Low Power Dissipation synchronous rectification optimization, and low-resonance chopper EMI-optimized slope & current controlled gate drivers operation. Standard SPI and STEP/DIR interfaces simplify communication. The Protection & Diagnostics overcurrent, short to GND, TMC262 drives four external N- and P- overtemperature & undervoltage channel dual MOSFETs for motor currents stallGuard2 high precision sensorless motor load detection up to 8A and up to 60V. Integrated coolStep load dependent current control for energy savings protection and diagnostic features support up to 75% robust and reliable operation. High integration, high energy efficiency microPlyer microstep interpolation for increased and small form factor enable miniaturized smoothness with coarse step inputs. designs with low external component spreadCycle high-precision chopper for best current sine count for cost-effective and highly wave form and zero crossing competitive solutions. BLOCK DIAGRAM +VM TMC262 VCC IO Gate driver HS Gate Driver STEP N S Sine Table x Chopper DIR 4*256 entry BM Gate driver 2 Phase Gate Driver Stepper CSN LS coolStep SPI control, SCK Config & Diags RS SDI SDO 2 x Current R R S S 2 x DAC Protection Comparator stallGuard2 & Diagnostics SG TST TRINAMIC Motion Control GmbH & Co. KG Hamburg, Germany Step MultiplierTMC262 DATASHEET (V2.07 / 2013-FEB-14) 2 APPLICATION EXAMPLES: HIGH POWER SMALL SIZE The TMC262 scores with its high power density and a versatility that covers a wide spectrum of applications and motor sizes, all while keeping costs down. Extensive support at the chip, board, and software levels enables rapid design cycles and fast time-to-market with competitive products. High energy efficiency from TRINAMICs coolStep technology delivers further cost savings in related systems such as power supplies and cooling. STEPROCKER The driver stage shown uses 6A-capable dual MOSFETs. All cooling requirements are satisfied by passive convection cooling. The stepRocker is supported by the motioncontrol-community, with forum, applications, schematics, open source projects, demos etc.: Layout with 6A MOSFETs TMCM-MODULE FOR NEMA 11 STEPPER MOTORS This miniaturized power stage drives up to 1.2A RMS and mounts directly on a 28mm-size motor. Tiny TSOP6 dual MOSFETs enable an ultra-compact and flexible PCB layout. Miniaturized Layout TMC262-EVAL DEVELOPMENT PLATFORM This evaluation board is a development platform for applications based on the TMC262. The board features USB and RS232 interfaces for communication with control software running on a PC. External power MOSFETs support drive currents up to 6A at 40 V. The control software provides a user-friendly GUI for setting control parameters and visualizing the dynamic response of the motor. Motor movement can be controlled through the Step and Dir Layout for Evaluation interface using inputs from an external source or signals generated by the onboard microcontroller acting as a step generator. ORDER CODES Size Order code Description 2 TMC262-LA coolStep driver for external MOSFETs, QFN32 5 x 5 mm 2 TMC262-EVAL Evaluation board for TMC262 (RS232, USB) 10 x 16 cm 2 TMC429+26x-EVAL Chipset evaluation board for TMC429, TMC260, TMC261, 10 x 16 cm TMC262, and TMC424. www.trinamic.com