HIG H P R E C I S I O N C O N T R OL L ER FO R S T EP P ER MO T OR S
I N T E GR A T E D C I R C U ITS
TMC
33 2
M i cr o S t e p S e q u e n c er f o r
2 - ph a s e a n d 3 - p h a s e M o t ors
w i th I n t e g r a t e d P W M U n i ts
a n d C l o s e d L o o p C u rr e n t
Regulator
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 pro-
grammable 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 programma-
ble break before make timing and over current protection. Incre-
mental 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 chopSync™ 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 quan-
tization 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
• chopSync™ 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 mm²
• 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 / I
RMS
)
P Controller
ORDER CODE
DESC RIP TIO N
TMC332-BC
Related product:
TMC332-Eval
Micro step sequencer, FBGA144 package
Evaluation board for TMC332
www.trinamic.com
– for detailed information and datasheets
94
嵌入式系统
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