High current, low power dissipation microstep stepper motor driver

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Part #:
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The TMC236 provides an integrated motor driver solution for Laboratory Automation, Scanners and other automated equipment applications. The device has an integrated microstepping current control 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 TMC236 is capable of driving up to 1.5A of current from each output (with proper heatsinking). TMC236 is designed for a supply voltage of 7...34V. The device has a SPI interface for control and diagnostics.

Symmetry Electronics is an authorized Trinamic distributor.


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Control via SPI with easy-to-use 12 bit protocol or external analog / digital signals
Short circuit, overvoltage and over temperature protection integrated
Status flags for overcurrent, open load, over temperature, temperature pre-warning, undervoltage
Integrated 4 bit DACs allow up to 16 times microstepping via SPI (can be expanded to 64 microsteps)
Any resolution via analog control
Mixed decay feature for smooth motor operation
Slope control user programmable to reduce electromagnetic emissions
Chopper frequency programmable via a single capacitor or external clock
Current control allows cool motor and driver operation
Internal open load detector
7V to 34V motor supply voltage (A-type)
Up to 1500mA output current and more than 800mA at 105C
3.3V or 5V operation for digital part
Low power dissipation via low RDS-ON power stage
Standby and shutdown mode available


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