IRMCK371TR

IRMCK371 is a high performance OTP based motion control IC designed primarily for appliance applications. IRMCK371 is designed to achieve low cost and high performance control solutions for advanced inverterized appliance motor control. IRMCK371 contains two computation engines. One is Motion Control Engine (MCE) for sensorless control of permanent magnet motors; the other is an 8-bit high-speed microcontroller (8051). Both computation engines are integrated into one monolithic chip. The MCE contains a collection of control elements such as Proportional plus Integral, Vector rotator, Angle estimator, Multiply/Divide, Low loss SVPWM, Single Shunt IFB. The user can program a motion control algorithm by connecting these control elements using a graphic compiler. Key components of the sensorless control algorithms, such as the Angle Estimator, are provided as complete pre-defined control blocks implemented in hardware. A unique analog/digital circuit and algorithm to fully support single shunt current reconstruction is also provided. The 8051 microcontroller performs 2-cycle instruction execution (16MIPS at 33MHz). The MCE and 8051 microcontroller are connected via dual port RAM to process signal monitoring and command input. An advanced graphic compiler for the MCE is seamlessly integrated into the MATLAB/Simulink environment, while third party JTAG based emulator tools are supported for 8051 developments. IRMCK371 comes with a small QFP48 pin lead-free package.

• MCE™ (Motion Control Engine) - Hardware based computation engine for high efficiency sinusoidal sensorless control of permanent magnet AC motor
• Support Induction motor sensorless FOC control
• Supports both interior and surface permanent magnet motors
• Built-in hardware peripheral for single shunt current feedback reconstruction
• No external current or voltage sensing operational amplifier required
• Three/two-phase Space Vector PWM
• Analog output (PWM)
• Embedded 8-bit high speed microcontroller (8051) for flexible I/O and man-machine control
• JTAG programming port for emulation/debugger
• Serial communication interface (UART)
• I2C/SPI serial interface
• Watchdog timer with independent analog clock
• Three general purpose timers/counters
• Two special timers: periodic timer, capture timer
• Internal ‘One-Time Programmable’ (OTP) memory and internal RAM for final production usage