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| 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 C3 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 The TMC332 is a high precision micro step sequencer with integrated PWM units. Internal micro step counters with programmable step width make the handling of the physical units comfortable. The TMC428 step direction interface of the TMC332 is directly compatible to the driver chain interface of the TMC428 motion controller. The other step direction interface is a classical two wire step direction interface. Parameterizing of the TMC332 takes place over a common SPI micro controller interface. 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 sine waves with +/- 120 phase shift for 3-phase motors. The gate control block of the TMC332 provides the gate control 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 can be connected to the TMC332. The TMC332 also contains a current measurement unit and a current regulator, requiring only a few inexpensive external components. Switching to fullstep and the chopSyncTM feature allow high velocity operation. INTERFACE ELECTRICAL DATA * high precision micro step sequencer for smooth motion applications * 2-phase stepper motor control * 3-phase stepper motor control * 9 bit PWM units, 8 bit PWM scaler * 4 bit PWM sub-modulation for scaling quantization compensation * PWM frequency programmable * programmable break-before-make timing * integrated current measurement ADC (just 2 LM339, 1 LM324 and some RC required) * integrated current regulation * manual or automatic microstep to fullstep switching for higher speeds * chopSyncTM for high velocity operation * operation with 3.3V compatible IOs / 1.5V core voltage * 16 MHz clock frequency * classical two wire step direction interface * TMC428 driver chain step direction interface * common SPI interface for parameterizing of TMC332 and TMC428 ChopSync PWM (FS Mode) PACKAGE Gate Control * FBGA144 package 13 x 13 mm * RoHS compliant TMC428 SPI Driver Chain Interface Sequencer Step / Direction SIN LUT (xy / uvw) PWM (xy / uvw) SPI (Register Interface) Control Logic / Register Bank 10 mm 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 Related product: TMC332-Eval Micro step sequencer, FBGA144 package Evaluation board for TMC332 www.trinamic.com - for detailed information and datasheets 94 |
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