GATEDRIV E R I N T E G R A T E D C I R C U ITS TM C 6 03 Thre e Phase Motor Dr iver with BLDC Ba ck EMF C ommutation H allFX™ a nd Current Sensing M A IN CH A R AC T ER IS T IC S INFO The TMC603 is a three phase BLDC motor driver IC for highly • low power dissipation compact and energy efficient drive solutions. Control algorithms • integrated phase current measurement via RDSon of power MOSFETs previously only found in much more complex servo drives can • sensorless back EMF commutation hallFX™ (hall sensor like signals - phase shift free) now be realized with a minimum of external components. The TMC603 directly drives 6 external N-channel MOSFETs for motor • integrated break-before-make logic: no special microcontroller PWM hardware required currents up to 20A and up to 50V. It integrates current measurement without the need for high current sense resistors, and the • integrated overcurrent / short to GND and undervoltage protection and diagnostics sensorless commutation circuitry HallFX™. Its integrated support for sine commutation as well as for back EMF sensing and com- • integrated step down switching regulator up to 500mA / 300kHz mutation saves cost and allows for maximum drive efficiency. Depending on the desired commutation scheme and the bus ELECTRICAL DATA • up to 20A motor current interface requirements, the TMC603 forms a complete motor • 9V to 50V operating voltage driver system in combination with an external 8 bit processor or • EMV optimized current controlled gate drivers - up to 150mA with a more powerful 32 bit processor. Protection and diagnos- • internal QGD protection: Supports latest generation of power MOSFETs tic features as well as a step down switching regulator further reduce system cost and increase reliability. INTERFACE The TMC603 also supports control of three phase stepper motors PACKAGE as well as two phase stepper motors using two devices. • 3.3V or 5V interface • QFN52 package 8 x 8 mm² • RoHS compliant 10 mm OR DE R C O DE D E S C RI P T I ON TMC603-LA Driver for external 20A MOSFETs, QFN52 package Related product: TMC603-Eval Evaluation board for TMC603 www.trinamic.com – for detailed information and datasheets 96