Step/Dir Drivers for Two-Phase Bipolar Stepper Motors up to 2.8A peak – StealthChop for Quiet Movement – UART Interface Option – Sensorless Stall Detection StallGuard4
TMC2226 DATASHEET (Rev. 1.06 / 2020-MAY-18) 2 APPLICATION EXAMPLES: SIMPLE SOLUTIONS – HIGHLY EFFECTIVE The TMC22xx family scores with power density, integrated power MOSFETs, smooth and quiet operation, and a congenial simplicity. The TMC2226 covers a wide spectrum of applications from battery systems to embedded applications with up to 2A motor current per coil. TRINAMICs unique chopper modes SpreadCycle and StealthChop2 optimize drive performance. StealthChop reduces motor noise to the point of silence at low velocities. Standby current reduction keeps costs for power dissipation and cooling down. Extensive support enables rapid design cycles and fast time-to-market with competitive products. STANDALONE REPLACEMENT FOR LEGACY STEPPER DRIVER In this example, configuration is hard 0A+ wired via pins. Software based motion S/DN control generates STEP and DIR ERROR, INDEXTMC22xx0A-S (direction) signals, INDEX and ERROR 0B+ signals report back status information. 0B-UART INTERFACE FOR FULL DIAGNOSTICS AND CONTROL A CPU operates the driver via step and direction signals. It accesses diagnostic 0A+S/DN information and configures the High-LevelCPUUARTTMC22xx0A-SInterface TMC2226 via the UART interface. The CPU 0B+ manages motion control and the 0B- TMC2226 drives the motor and smoo- Sense Resistors may be omitted thens and optimizes drive performance. The TMC2226-EVAL is part of TRINAMICs universal evaluation board system which provides a convenient handling of the hardware as well as a user- friendly software tool for evaluation. The TMC2226 evaluation board system consists of three parts: STARTRAMPE (base board), ESELSBRÜCKE (connector board with several test points and stand-alone settings), and TMC2226- EVAL. ORDER CODESOrder codePNDescriptionSize [mm2] TMC2226-SA 00-0199 StealthChop standalone driver; HTSSOP (RoHS compliant) 9.7 x 6.4 TMC2226-SA-T 00-0199-T -T denotes tape on reel packing of devices TMC2226-EVAL 40-0204 Evaluation board for TMC2226 stepper motor driver 85 x 55 ESELSBRÜCKE 40-0098 Connector board fitting to Landungsbrücke 61 x 38 LANDUNGSBRÜCKE 40-0167 Baseboard for TMC2226-EVAL & further evaluation boards 85 x 55 www.trinamic.com