IRMCK371TY International Rectifier, IRMCK371TY Datasheet - Page 5

• Manufacturer Part Number: IRMCK371TY
• Description: IC MOTOR CTRL RAM HP 64-QFP
• Manufacturer: International Rectifier

Specifications of IRMCK371TY

• Applications: AC Motor Controller, Permanent Magnet
• Number Of Outputs: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Operating Temperature Classification: Industrial
• Package Type: PQFP
• Package: QFP48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Compliant

IRMCK371
1 Overview
IRMCK371 is a new 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 IRMCK371 provides a built-in closed loop sensorless
TM
control algorithm using the unique Motion Control Engine (MCE
) for permanent magnet motors.
TM
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. IRMCK371 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. Motion control programming is achieved using
TM
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 IRMCK371.
IRMCF371 is intended for development purpose and contains 48K bytes of RAM, which can be
loaded from external EEPROM for 8051 program execution. For high volume production,
IRMCK371 contains OTP ROM in place of program RAM to reduce the cost. Both IRMCK371 and
IRMCK371 come in the same 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 IRMCK371
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