IRMCK171TR International Rectifier, IRMCK171TR Datasheet - Page 5

• Manufacturer Part Number: IRMCK171TR
• Description: A high performance OTP based motion control IC designed primarily for appliance applications.
• Manufacturer: International Rectifier

Specifications of IRMCK171TR

• Package: QFP48

IRMCK171
1 Overview
IRMCK171 is a new generation International Rectifier integrated circuit device primarily designed as a one-
chip solution for complete inverter controlled appliance motor control applications. Unlike a traditional
microcontroller or DSP, the IRMCK171 provides a built-in closed loop sensorless control algorithm using
TM
the unique flexible Motion Control Engine (MCE
) for permanent magnet motors as well as induction
TM
motors. The MCE
consists of a collection of control elements, motion peripherals, a dedicated motion
control sequencer and dual port RAM to map internal signal nodes. IRMCK171 also employs a unique
single shunt current reconstruction circuit in addition to two leg shunt current sensing circuit to eliminate
additional analog/digital circuitry and enables a direct shunt resistor interface to the IC. Motion control
TM
programming is achieved using a dedicated graphical compiler integrated into the MATLAB/Simulink
development environment. Sequencing, user interface, host communication, and upper layer control tasks
can be implemented in the 8051 high-speed 8-bit microcontroller. The 8051 microcontroller is equipped with
a JTAG port to facilitate emulation and debugging tools. Figure 1 shows a typical application schematic
using the IRMCK171.
IRMCK171 contains 32K bytes of OTP program ROM, The IRMCF171 contains 64K bytes of Flash RAM
and intended for development purposes only while the IRMCK171 is intended for volume production. Both
the development and ROM versions come in a 48-pin QFP package with identical pin configuration to
facilitate PC board layout and transition to mass production.
Figure 1 Typical Application Block Diagram Using IRMCK171
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