HIGH PRE C I S I O N C O N T R O L L 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 TM C 3 32 Micr o Step S equencer for 2-ph ase and 3-phase Motors with Integra ted PWM Units and Closed L oop Curr ent Regulato r M A IN CH A R AC T ER IS T IC S INFO • high precision micro step sequencer for smooth motion applications The TMC332 is a high precision micro step sequencer with integrated PWM units. Internal micro step counters with pro- • 2-phase stepper motor control grammable step width make the handling of the physical units • 3-phase stepper motor control comfortable. The TMC428 step direction interface of the TMC332 • 9 bit PWM units, 8 bit PWM scaler is directly compatible to the driver chain interface of the TMC428 • 4 bit PWM sub-modulation for scaling quantization compensation motion controller. The other step direction interface is a classical two wire step direction interface. Parameterizing of the TMC332 • PWM frequency programmable takes place over a common SPI micro controller interface. • programmable break-before-make timing The integrated sine wave look up table can output either 2 sine waves with a phase shift of 90° for 2-phase stepper motors or 3 • integrated current measurement ADC (just 2 LM339, 1 LM324 and some RC required) sine waves with +/- 120° phase shift for 3-phase motors. • integrated current regulation The gate control block of the TMC332 provides the gate control • manual or automatic microstep to fullstep switching for higher speeds signals for the power stage half bridges, including programmable break before make timing and over current protection. Incremental encoders (ABN) to evaluate the physical motor position • chopSync™ for high velocity operation can be connected to the TMC332. The TMC332 also contains a • operation with 3.3V compatible IOs / 1.5V core voltage current measurement unit and a current regulator, requiring only • 16 MHz clock frequency ELECTRICAL DATA a few inexpensive external components. Switching to fullstep INTERFACE • classical two wire step direction interface • TMC428 driver chain step direction interface and the chopSync™ feature allow high velocity operation. • common SPI interface for parameterizing of TMC332 and TMC428 PACKAGE ChopSync PWM (FS Mode) TMC428 SPI Driver Chain Interface • RoHS compliant Gate Control Sequencer SIN LUT (xy / uvw) • FBGA144 package 13 x 13 mm² PWM (xy / uvw) Step / Direction 10 mm Control Logic / Register Bank SPI (Register Interface) ABN Decoder 3 Encoder position compare units Current Measurement Control Unit (Ix, Iy / Iu, Iv, Iw / IRMS) P Controller OR DE R C O DE D E S C RI P T I ON TMC332-BC Micro step sequencer, FBGA144 package Related product: TMC332-Eval Evaluation board for TMC332 www.trinamic.com – for detailed information and datasheets 94