TMC2209 Ultra-Silent Motor Driver IC

By TRINAMIC Motion Control GmbH 75

TMC2209 Ultra-Silent Motor Driver IC

TRINAMIC's TMC2209 is the ultimate stepper driver for desktop solutions, allowing stall detection and extremely silent operation at the same time. Pin-compatible with several legacy drivers, it supports higher current while reducing cooling requirements. The TMC2209 is an extremely silent stepper driver IC, also available as SilentStepStick. The motor driver for 2-phase stepper motors up to 2 ARMS and 29 V enables the use of StallGuard4™ and StealthChop2™ in parallel, ensuring noiseless operation without the need for limit switches.

These features allow for the intertwining of physical and software components. Besides offering a solid hardware base needed for software-defined machines, it also permits next-level integration of the user and the device by recognizing hard stops automatically and being as silent as mechanically possible while optimizing motor performance.

The TMC2209 pin compatibility makes it the perfect candidate for existing design upgrades and bringing improved applications to the market. With the new feature set, the chip is ideal for POS devices, 3D and conventional printers, office and home automation, textile, security cameras, and ATMs, as well as battery-operated equipment. Trinamic makes sure manufacturers can drive these applications into the future with the TMC2209's fast current regulation. Optionally combined with SpreadCycle™, it allows highly dynamic motion control without running hot. Moreover, when activated, StallGuard adds sensorless homing and extra safety to applications, allowing it to recognize hard stops without the need for end switches. Together with the protection and diagnostic features, this makes the driver IC ready for robust and reliable operation. A simple to use UART interface allows for adjustments which can be stored on the OTP memory embedded in the TMC2209. It also has a step/dir interface with microstep pin setting.

Features and Benefits
  • Driver for 2-phase stepper motors up to 2 ARMS and 4.75 V to 29 V
  • Step/Dir and single wire UART interface
  • Simultaneous use of StealthChop and StallGuard
  • Low power standby to fit EUP or battery operation
  • Low RDS(ON), low heat-up: LS 170 mΩ and HS 170 mΩ (typ. at +25°C)
  • Compact 5 x5 mm² QFN28 package