New iMOTIONTM Integrated Design Platform Digital ICs Slash Time-to-Market
November 4, 2003- International Rectifier, IR® introduces two additions to the iMOTIONTM integrated design platform for motion control. The IRMCK201 and the IRMCK203 digital control ICs revolutionize the task of configuring motion control algorithms for different types of permanent magnet or AC induction motors and their position feedback devices.Unlike traditional motor drive controls that rely on complex digital signal processors (DSP) or microprocessor control units (MCUs), the IRMCK201 and IRMCK203 contain a unique Motion Control EngineTM (MCE), which eliminates software programming. Motion control products developed with the new digital control ICs and the iMOTION chip set can be brought to market faster, since commands are simplified to menu-driven selections.
The new devices have a wide range of high performance applications in the industrial and automation industries, such as dental drills, semiconductor wafer-handling equipment, pick and place machines and other precision motion control applications.
The IRMCK201 features an encoder feedback based closed loop current and velocity control for servo applications. In addition, the IRMCK201 is designed to be compatible with the rest of the iMOTION chip set, comprising of the IR2175 linear current-sensing IC, the IR2136 three-phase inverter-driver IC and the IRAM 6A to 20A integrated power modules. The IR2175 provides current feedback information and features a fast frequency output (FO = 130kHz) for high bandwidth and fast acceleration. Versatile space vector PWM with dead time insertion transfers information to and from the IC to the power devices with low loss, less noise and high efficiency.
The IRMCK203 is a digital control IC solution for sinusoidal current-based sensorless drives, and enables the design of ultra high-speed (100,000rpm) and wide speed range (>20:1) applications with sensor-less control. The sensorless feedback circuits combine with low loss space vector PWM and unique starting algorithm for permanent magnet AC motor, minimizing torque and ripple, increasing efficiency.
The new ICs include a fast, serial peripheral interface (SPI) port for connecting master/slave low- to medium-bandwidth external devices using two data lines and two control lines, and supports the asynchronous communication standards RS-232, RS-422, RS-485.
| Part Number | Package | Voltage | Clock Frequency | Max Current Control Update Rate | Velocity Loop Update | Max SPI Clock |
| IRMCK201 | 100-pin QFP | 3.3V | 33MHz | 60kHz | 5/10kHz | 6MHz |
| Part Number | Package | Voltage | Clock Frequency | Max Current Control Update Rate | Max SPI Speed |
| IRMCK203 | 80-pin QFP | 3.3V | 33 MHz | 60kHz | 6MHz |
Design assistance is available using International Rectifier's ServoDesignerTM hardware development platform.
Pricing
Pricing is US $13.85 each for the IRMCK201 and US $19.85 each for the IRMCK203, both in 10,000-unit quantities.
