Text version of the page 
Text version of the page 
PERFORMANCE MOTION DEVICES MC73110 MotorControl IC FEATURES •Controls 3-phase brushless dc motors •High performance digital current loop•Velocity loop with encoder or tachometer feedback •Internal velocity profile generator
•Sinusoidal or 6-step commutation
•Field oriented control
•Hall sensor inputs •6-signal PWM output with shoot- The MC73110 MotorControlIC Two analog inputs for current feed-back from the drive are provided.
Commutation is software-programma-
ble,and can occur using a six-step
waveform or using a sinusoidal wave-
form.The MC73110 closes a velocity
loop using a quadrature encoder or
an analog signal from a tachometer.
Velocity commands are provided by
an internal profile generator,by a digital SPI 16-bit data stream,or by
an analog signal.A programmable
compensation filter closes the loop
and determines the motor command.To create a complete motion controller,the MC73110 is connected to a MOSFET or IGBT-based power stage.
The MC73110 is packaged in a com-
pact 64-pin TQFP (thin quad flat pack),
and operates from 3.3 V. through protection provides high perform-ance digital current loop,velocity loop,
and commutation,for brushless Dc motors manufacturer.This intelligent single-axis drive
controller operates in internal velocity
profile mode,velocity mode with an
external velocity command signal,or
torque mode with an external torque
command signal.The MC73110 can
be operated standalone,using pre-pro-
grammed parameters,or through the
serial port using commands sent by a
microprocessor.The current loop provides software programmable P and I terms such as
current limit and integration limit.Two
symmetric 3-phase PWM (pulse width
modulated) output modes are provided;
3-signal mode and 6-signal mode with
shoot-through protection timing. •Direct analog signal input •Serial port up to 416 Kbaud •Quadrature encoder input up to 10Mcounts/sec •Serial EEPROM or onboard flash configuration load•High speed index input & capture
•SPI (synchronous peripheral interface)command input•Emergency stop input
•10 kHz velocity loop
•20 kHz commutation and current loop•20 kHz or 40 kHz PWM output rate
•Compact 64-pin thin quad flat pack (TQFP) CONFIGURATION Host Microprocessor or Controller Serial, SPI or Analog Command
CurrentHall SensorsQuad EncoderTachometer MOSFET/ IGBT Motor (3-Phase) MC73110
|