6
TMC223 DATASHEET (V. 1.05 / March 7, 2011)
2.5 Sensorless Stall Detection
The TMC223 is equipped with a sensorless stall detection, to be used for noiseless reference search
without reference switch and motion monitoring purposes as detection of motor blocking.
2.6 Miscellaneous
Besides the main blocks the TMC223 contains the following:
•
•
an internal charge pump used to drive the high side transistors.
an internal oscillator running at 4 MHz +/- 10% to clock the two wire serial interface, the
positioning unit, and the main control block
•
•
•
•
•
internal voltage reference for precise referencing
a 5 Volts voltage regulator to supply the digital logic
protection block featuring Thermal Shutdown, Power-On-Reset, etc.
optional PWM jitter for reduction of EMI
two programmable PWM frequencies (23 kHz and 46 kHz)
Copyright © 2007-2011 TRINAMIC Motion Control GmbH & Co. KG
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
