Analog Devices Inc. TMC2211 Integrated Stepper Driver
Analog Devices TMC2211 Integrated Stepper Driver is a high-performance stepper motor driver IC with configuration options through package pins and additional diagnostic outputs. It combines the industry’s most advanced stepper motor driver based on 256 microsteps, a built-in indexer, two fully integrated 65V, 3.0A MAX H-bridges, and non-dissipative integrated current sensing (ICS). Analog Devices sophisticated StealthChop2 chopper ensures absolutely noiseless operation, combined with maximum efficiency and ideal motor torque.
High integration, high energy efficiency, and a small form factor enable miniaturized and scalable systems for cost-effective solutions. The complete solution reduces the learning curve to a minimum while giving best-in-class performance. The H-bridge field-effect transistors (FETs) have very low impedance, resulting in high driving efficiency and minimal heat generated. The typical total RON (high-side + low-side) is 0.31Ω.
The maximum RMS current per H-bridge is 2A with VS = 24V and 1.7A with VS = 48V supply at room temperature, assuming a four-layer PCB. Due to thermal restrictions, the applicable RMS current depends on environmental temperature, duty cycle, and the thermal characteristics of the application (PCB ground planes, heatsink, ventilation). The maximum full-scale current per H-bridge is IFS = 3.0A MAX and can be set by an external resistor connected to IREF. This current is defined as the maximum current setting of the embedded current drive regulation circuit.
Features
- 4.5VDC to 65VDC voltage range
- Low RON (HS + LS) of 0.31Ω (typ.) (TA = 25°C)
- Current Ratings per H-Bridge (typ. at 25°C):
- 2ARMS (2.8A sine peak) at VS = 24V
- 1.7ARMS (2.4A sine peak) at VS = 48V
- Fully integrated lossless current sensing
- Step/Direction (S/D) interface with MicroPlyer step interpolation
- 256 microsteps per full step resolution
- StealthChop2 silent motor operation
- SpreadCycle is a highly dynamic motor control chopper
- Full protection and diagnostics
- Overvoltage protection output
- Compact 5mm x 7mm TQFN38 package
Applications
- Textile, sewing, and knitting machines
- Lab and factory automation
- ID printers/card printers
- Liquid handling and medical applications
- Office automation and paper handling
- POS, massage chairs
- ATM, cash recycler, bill validators, cash machines
- CCTV, security
- Pumps and valve control
- Heliostat and antenna positioning
- Stage lighting
Functional Diagram
