Analog Devices Inc. TMC5262 Smart Stepper Motor Controller/Driver ICs
Analog Devices TMC5262 Smart Stepper Motor Controller and Driver Integrated Circuits (ICs) are miniaturized, high-power, single-axis devices with SPI and extensive diagnostic capabilities. High integration, high energy efficiency, and a small form factor enable miniaturized, scalable, and cost-effective motor drive solutions perfectly suited for Nema 17, Nema 23, and Nema 24 steppers. The ADI TMC5262 ICs come in a compact, near-chip-scale, thermally optimized 30-pin 6mm x 6mm FCQFN package.
StealthChop+ ensures noiseless operation and maximum efficiency, optimal motor torque control, and dampening of mid-range motor resonances, resulting in a smoothly running motor with low mechanical vibrations. Combined with StallGuard+, CoolStep+, and µDcStep, this results in a highly efficient and versatile stepper motor driver. An unloaded Nema 17 motor runs automatically with as little as 10mA of supply current.
The ADI TMC5262 ICs combine a flexible eight-point ramp generator for automatic positioning with a smart 256 microstep motor driver and two integrated 65V, 4.25ARMS, 6A peak H-bridges plus non-dissipative integrated current sensing. The integrated current sensing eliminates the need for bulky external sense resistors, resulting in space and power savings.
The integrated power MOSFETs' low impedance of ~40mΩ ensures high efficiency and low heat generation. Abundant diagnostics include an on-chip scope interface for tuning and checking (RT-OCSI), temperature and voltage analog-to-digital converters (ADCs), and a full set of protection functions, such as short-circuit protection and thermal shutdown.
Features
- 4.5VDC to 65VDC voltage range
- Low 0.08Ω (typical) RDS(ON) (HS + LS) at TA = +25°C
- Current ratings per H-Bridge (typical at +25°C)
- 4.25ARMS IRMS (6A full-scale sine peak)
- 9.0A IMAX (bridge peak current)
- SPI for configuration, control, and diagnostics
- Fully integrated lossless current sensing
- Eight-point motion controller for low jerk
- Step and direction interface option
- Position compare function (Periodic)
- Incremental encoder and reference switch interface
- TriCoder sensorless standstill steploss detection and full-step encoder
- Highest resolution of 256 microsteps
- Programmable sine wave table to match motor
- StealthChop+ silent and smooth motor operation with resonance dampening
- SpreadCycle highly dynamic motor chopper option
- StallGuard2, StallGuard+ sensorless load detection
- CoolStep, CoolStep+ current control for application energy savings up to 90%
- µDcStep load-dependent velocity adaptation
- Motor coil resistance measurement integrated
- Passive braking and freewheeling mode
- Chip temperature and supply voltage measurement
- Full protection and diagnostics
- Real-time on-chip scope interface (RT-OCSI)
- Overvoltage protection output
- Compact 30-pin 6mm x 6mm FCQFN package
Applications
- Textiles, sewing machines, and knitting machines
- Lab automation and IVD
- Robotics and factory automation
- 3D and label printers
- Point-of-sale (POS) and massage chairs
- ATMs, cash recyclers, bill validators, and cash machines
- Pumps and valve control
- Stage lighting and antenna positioning
Simplified Block Diagram
Functional Block Diagram
Development Tools
Analog Devices Inc. TMC5262-EVKIT Evaluation Kit
enables uncomplicated initial evaluation of the TMC5262 smart stepper motor controller/driver ICs.