TMC249

 Drives 2-phase stepper motors
Integrated load measurment allows sensorless stall detection (Pat. Fi.)StallGuard™
Up to 10A and 75V with external circuitry
7V to 28.5V motor supply voltage
Low power dissipation via external low RDS-ON  power stage
4 bit DACs allow up to 16 times µ-stepping vi SPI, higher resolution via analog control
Control via SPI with easy to use 12 bit protocol or external analog / digital signals
Status Flags for short circuit,open load,over temperature, temperature pre-warning,undervoltage
Short circuit, over temperature, over voltage protection integrated
Internal open load detector
Mixed decay feature for smooth motor operation
3.3V or 5V operation for digital part
Current control allows cool motor and driver operation
Standby and shutdown mode available
Slope control user programmable to reduce electromagnetic emissions
Chopper frequency programmable via single capacitor or external clock
Only 4 external PMOS transistors required for unipolar operation