Main features
REF-MHA50WIMI111T reference design kits are intended for evaluating the IMI111T series of iMOTION™ IPMs.
The main features [1] of IMI111T series are:
• Motion control engine (MCE) as ready-to-use controller solution for variable speed drives
• Field oriented control (FOC) for permanent magnet synchronous motor (PMSM)
• Space vector pulse width modulation (SVPWM) with sinusoidal commutation and integrated protection features
• Single-shunt current sensing through direct interface
• Sensor-less operation
• Integrated analog comparators for overcurrent protection
• Overvoltage and undervoltage protection
• Rotor lock protection
• Built-in temperature sensor (Overtemperature protection)
• Undervoltage lockout
• Integrated minimum deadtime
• Shoot-through prevention
• Two different power IGBT options: 2 A/600 V, 4 A/600 V
• Two different supply voltage options for controller: 3.3 V, 5 V
• 15 V supply voltage for gate driver
• Integrated bootstrap diode structure
• Flexible host interface options for speed commands: UART, SPI, PWM, or analog signal
• Class B pre-certification for MCE 2.0 firmware
• Isolation 1500 VRMS 1 min
• Very compact DSO22 package
The main characteristics of the reference board are:
• Typical fan driver 5-pin connector including VDC/GND/VCC/VSP/FG
• Single-shunt current sensing configuration
• Voltage divider for DC-link voltage sensing
• PCB dimensions: 52.0 mm x 52.0 mm, single layer, 1 oz copper
• RoHS compliant