Overview
The TMC2209 is an ultra-silent motor driver IC for two-phase stepper motors. It is directly pin-compatible with older drivers like the A4988 and TMC2208 but brings massive performance upgrades. Packing Trinamic’s latest StealthChop2 and CoolStep technologies, it delivers whisper-quiet performance while pushing more power to your motors without overheating. It is the gold standard driver for premium open-source hardware and high-speed coreXY 3D printers running Marlin or Klipper firmware.
Key Features
StallGuard4â„¢ (Sensorless Homing): Detects motor stalls with high precision, allowing your printer to home its X and Y axes perfectly without needing mechanical endstops.
StealthChop2â„¢ Voltage Chopper: Ensures completely silent motor operation and ultra-smooth acceleration profiles at lower speeds.
SpreadCycleâ„¢ Cycle Chopper: Automatically switches on for high-speed, high-torque dynamics during rapid travel movements.
CoolStepâ„¢ Energy Saving: Dynamically adjusts the current sent to the motor based on load, reducing overall power consumption and heat generation by up to 75%.
Native UART Layout: Pre-configured for easy digital configuration via single-wire UART on modern control boards (SKR, MKS, BigTreeTech).
Technical SpecificationsÂ
| Feature | Specification |
| Driver IC | Trinamic TMC2209 |
| Motor Supply Voltage (VM) | 4.75V to 28V DC |
| Logic Supply Voltage (VIO) | 3.0V to 5.5V DC |
| Continuous Current (RMS) | 2.0A (with proper cooling) |
| Peak Current | 2.8A max |
| Step/Dir Resolution | Up to 1/256 Microstepping (via MicroPlyer interpolation) |
| Internal Resistance (RDSon) | 0.2 Ohm (Runs significantly cooler than TMC2208) |
| Control Interface | Step/Dir Pins or Native UART Mode |
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