IRMCF588

5

www.irf.com

© 2015 International Rectifier

February 20,2015

1

Overview

IRMCF588 is a new generation International Rectifier integrated circuit device primarily designed as a one-chip

solution for complete two motor inverterized appliance motor control applications. Particular application includes a

full DC inverter Air Conditioner which requires two motor sensorless control plus power factor control. Unlike a

traditional microcontroller or DSP, the IRMCF588 provides a built-in two parallel running computation engines for

two closed loop sensorless control algorithm using the unique Flexible Motion Control Engine (MCE

MCE

dual port RAM to map internal signal nodes. IRMCF588 also employs a unique single shunt current

reconstruction circuit to eliminate additional analog/digital circuitry and enables a direct shunt resistor interface to

the IC, while still supporting leg shunt current sensing.

Motion control programming is achieved using a

dedicated graphical compiler integrated into the MATLAB/Simulink

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.

Figure 1 shows a typical application schematic using the IRMCF588 in leg shunt mode.

IRMCF588 contains 64K bytes of Flash program memory plus 16K bytes of OTP memory and comes in a 100-pin

QFP package.

EMI

Filter

IRMCF588

PFC +

3-Phase

HVIC

Driver

IPM

DC bus

AC input

(100-

230V)

Compressor

Motor

SPM

3-Phase

HVIC

Driver

Outdoor Fan

40-60W

IR PFC+Inverter IPM (IRAM630-1562F)

7

Analog output

Digital I/O

5

12

21

Temperature feedback

Analog actuators

Relay, Valves, Switches

Analog input

RS232C

Serial Comm

(Indoor unit)

PWM

6

PWM

FAULT

IR uIPM (IRSM836-035MA)

RS232C

Serial Comm

(Mainnance)

Figure 1. Typical Application Block Diagram Using IRMCF588