MC73110 Motor Control IC
The MC73110 Motor Control IC is a compact, high-performance solution for brushless DC motor control. It integrates a digital current loop, velocity loop, and commutation logic to deliver precise, efficient motion control in demanding applications.
Flexible Operating Modes
This intelligent single-axis drive controller supports multiple modes:
- Internal velocity profile mode
- Velocity mode with external command signal
- Torque mode with external torque signal
The MC73110 can operate standalone using flash-stored parameters, or via serial port commands for dynamic control.
System Integration
To build a complete motion control system, the MC73110 connects to a MOSFET or IGBT-based power stage. It comes in a compact 64-pin TQFP package and operates at 3.3 V, making it ideal for embedded designs.
Key Features
- Control for 3-phase brushless DC motors
- Digital current loop and velocity loop with encoder/tachometer feedback
- Internal velocity profile generator
- Sinusoidal or 6-step commutation
- Field-oriented control and Hall sensor inputs
- 6-signal PWM output with shoot-through protection
- Direct analog input and SPI command interface
- Quadrature encoder input up to 10 Mcounts/sec
- Serial port up to 416 Kbaud
- EEPROM for onboard flash configuration
- Emergency stop input and high-speed index capture
- 10 kHz velocity loop and 20 kHz PWM output rate
- Compact 64-pin plastic quad flat pack (PQFP)
