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Documentation

TMC222 ShortSpecTMC222 Datasheet

Application Notes

TMC211/TMC222 FAQsC Library for using the TMC222 together with AVR and other microcontrollers

Related products

TMC222-EvalBoard

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Description

Microstepping stepper motor controller/driver with IIC interface

The TMC222 is a combined micro-stepping stepper motor motion controller and driver with RAM and OTP memory. The RAM or OTP memory is used to store motor parameters and configuration settings.The TMC222 allows up to four bit of microstepping and a coil current of up to 800 mA. After initialization it performs all time critical tasks autonomously based on target positions and velocity parameters. Communications to a host takes place via a two wire serial interface. Together with an inexpensive microcontroller the TMC222 forms a complete motion control system.

Specifications

Motor driver

• Controls one stepper motor with four bit microstepping
• Programmable Coil current up to 800 mA
• Supply voltage range operating range 8V ... 29V
• Fixed frequency PWM current control with automatic selection of fast and slow decay mode
• Full step frequencies up to 1 kHz
• High temperature, open circuit, short, over-current and under-voltage diagnostics

Motion controller

• Internal 16-bit wide position counter
• Configurable speed and acceleration settings
• Build-in ramp generator for autonomous positioning and speed control
• On-the-fly alteration of target position
• Reference switch input available for read out

Two wire serial interface

• Transfer rates up to 350 kbps
• Diagnostics and status information as well as motion parameters accessable
• Field-programmable node addresses (32)

Pricing

MSRP* (manufacturer's suggested retail price)

• EUR 4.65 @ 1k pcs.
• EUR 3.25 @ 10k pcs.

* best price: one shipment, exworks, payment 14 days net