DESCRIPTION

· The TMC248 is a driver for two-phase stepper motors, offering 64x micro-stepping and sensorless mechanical load measurement with stall detection.
· It features smart current control, SPI communication, and external analog/digital signal interfaces.
· The driver supports up to 7A motor current and 36V, utilizing eight external Low-RDS-ON MOSFETs.
· Integrated protection and diagnostic features ensure robust and reliable operation.
· Its high integration and small form factor enable cost-effective and miniaturized designs.

FEATURES

· High current capability up to 7A using 4 external dual-MOS transistors.
· Wide voltage range: 7V to 36V DC for motor, 3.3V or 5V DC for digital part.
· Microstep resolution up to 64 microsteps per full step.
· Low power dissipation via low RDS-ON power stage.
· Comprehensive protection: overvoltage, overtemperature, short circuit.
· Advanced diagnostics: overcurrent, open load, overtemperature, temperature prewarning, undervoltage.
· stallGuard™ sensorless stall detection and load measurement.
· Mixed Decay for smooth motor operation.
· Slope Control for reduced electromagnetic emissions.
· Current Control for cool motor and driver.
· Standby and Shutdown Mode.
· Compact 5x5mm QFN28 package.

APPLICATIONS

· Textile and Sewing Machines.
· Office Automation.
· Printer and Scanner.
· Heliostat Controller.
· ATM and Cash Recycler.
· POS Systems.
· CCTV and Security.
· Antenna Positioning.
· Pumps and Valves.
· Lab Automation.
· Liquid Handling.
· Medical Devices.