Stepper motor driver 7 to 34V, up to 1.1A with SPI Interface, 64 µSteps

The TMC246 provides an integrated motor driver solution for Laboratory Automation, Scanners and other automated equipment applications. The device has an integrated microstepping current control and the sensorless stall detection technology StallGuard™ and is intended to drive a bipolar stepper motor. The output driver block consists of low RDSon TrenchFET power MOSFETs configured as full H-bridges to drive the motor windings. The TMC246 is capable of driving up to 1.5A of current from each output (with proper heatsinking). TMC246 is designed for a supply voltage of 7 to 34V. The device has a SPI interface for control and diagnostics.

APPLICATIONS

* Replace Classic Bipolar Driver ICs

* Office Automation

* Printer and Scanner

* Heliostat Controller

* ATM, Cash recycler

* POS

* CCTV, Security

* Antenna Positioning

* Pumps and Valves

* Lab Automation

* Liquid Handling

* Medica

* High Current up to 1500mA and 1000mA at 105°C

* Voltage Range 7 V to 36 V DC

* 3.3 V or 5 V for digital part

* SPI & External Analogue / Digital Signals

* Microstep Resolution 16 microsteps using internal DACs

* Low Power Dissipation via low RDS-ON power stage

* Protection: overvoltage, overtemperature & short circuit