POWER DR I V E R F O R S T E P P E R M O T O R S I N T E G R A T E D C I R C U ITS TMC 2 36 Micr oste p Dr iver for up to 1.5A M A IN CH A R AC T ER IS T IC S INFO The TMC236 is a smart power microstepping driver for bipolar • full protection and diagnostics stepper motors. It provides an SPI™ interface as well as the • low power dissipation classical analog /digital control. A full set of protection and diag- • 16 times microstepping via SPI, 64 times using additional shift register, even more via analog control nostic features makes this device very rugged. The integrated low-RDS-ON TrenchFET® power MOSFETs give an extremely high • mixed decay for smooth operation efficiency and allow driving of a high motor current of up to • programmable slope control for low EME 1.5A per phase without cooling measures even at high environ- • internal or external chopper clock ment temperatures. • standby and shutdown mode The small footprint and high efficiency make the device a perINTERFACE fect solution for embedded motion control and even for battery • classical analog interface powered designs. The evaluation can be done with the TMC246, as the only differ- • easy-to-use SPI™ interface ELECTRICAL DATA • up to 1500 mA coil current (peak) • 7V to 34V motor supply (TMC236A) ence is the additional stallGuard™ feature. • 3.3V or 5V operation for digital part PACKAGE • standard PQFP-44 package • RoHS compliant C/CLK IN A IN B TMC236 OSC 2x 4 bit DACs SPI PWM control & Gate Driver Control & Diagnostics 7..34V DC Current monitoring PWM control & Gate Driver ERROR 3.3 / 5V DC internal Driver Stage Coil A Temp / Volt protection Coil B 10 mm Step Motor internal Driver Stage OR DE R C O DE D E S C RI P T I ON TMC236A-PA 1.5A driver, PQFP-44 TMC428A-EVAL Evaluation board for TMC428, TMC246A and TMC249A with stallGuard™ www.trinamic.com – for detailed information and datasheets 11