MP6710 eMotion SystemTM Servo Motor Controller QFN-32

MP6710 eMotion SystemTM Servo Motor Controller QFN-32

The MP6710 is a high-performance motion controller incorporating proportion-integral- differential (PID) algorithms, a curve-planning algorithm, and rich protection functions.

Key Specifications

Features

• 3.3V Operating Supply Voltage
• Flexible Parameter Configuration with Non- Volatile Memory
• Selectable RS485/External IO Interface
• Three-Loop Control
• Good Dynamic Performance
• Postion/Speed/Torque Operation Modes
• PWM/Pulse/Digital Interface Reference Input
• Energy Regeneration Braking Mode
• 12-Bit ADC
• Up to 80kHz Programmable Switching Frequency

Typical Application Circuit

Applications

• PMSM Motors
• BLDC Motors

Design Notes

• Set dead time to match the external FET turn-off, not the datasheet typical. Too little risks shoot-through, too much distorts the current waveform at low duty cycle.
• Use a Kelvin connection for the current-sense resistor; shared copper injects switching noise straight into the sense amplifier.
• The thermal pad is the only heat path for most packages — via-stitch it to a ground plane with at least 9 vias.
• PWM frequency trades switching loss against current ripple in the motor inductance; 20 kHz keeps the drive out of the audible band.
• Add a brake or coast path so regeneration during a fast stop does not pump the supply rail.

Common Questions