IRMCF311TR International Rectifier, IRMCF311TR Datasheet - Page 4

• Manufacturer Part Number: IRMCF311TR
• Description: IC MOTOR CTRL RAM 2CH 64QFP
• Manufacturer: International Rectifier

Specifications of IRMCF311TR

• Applications: AC Motor Controller, Permanent Magnet
• Number Of Outputs: 2
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-MQFP, 64-PQFP
• Motion Control Description: High Performance Air Conditioner Control IC
• Package: QFP64
• Moisture Sensitivity Level: MSL3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -

1 Overview
IRMCF311 is a new International Rectifier integrated circuit device primarily designed as a one-
chip solution for complete inverter controlled air conditioner motor control applications. Unlike a
traditional microcontroller or DSP, the IRMCF311 provides a built-in closed loop sensorless
control algorithm using the unique Motion Control Engine (MCE
motors. The MCE
motion control sequencer and dual port RAM to map internal signal nodes. IRMCF311 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 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 schematics using IRMCF311.
IRMCF311 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,
IRMCK311 contains OTP ROM in place of program RAM to reduce the cost. Both IRMCF311
and IRMCK311 come in the same 64-pin QFP package with identical pin configuration to
facilitate PC board layout and transition to mass production
AC input
230V)
(100-
Passive
Filter
EMI
Figure 1. Typical Application Block Diagram Using IRMCF311
TM
consists of a collection of control elements, motion peripherals, a dedicated
Relay, Valves, Switches
Temperature feedback
Analog actuators
User Parameter
User Program
Storage
Storage
Analog input
Analog output
Digital I/O
EEPROM
EEPROM
Service
Galvanic
Isolation
Field
1
Serial Comm
Communication
RS232C
2
to indoor unit
2
IRMCF311
Galvanic
Isolation
3
3.3V
1.8V
15V
DC bus
Multple
Power
supply
7
Fault
6
Fault
TM
IRS2631D
Motor PWM +
IRS2630D
Temp sense
Motor PWM
PFC+GF
) for permanent magnet
FREDFET inveter
IGBT inverter
IRMCF311
Compressor
Fan Motor
60-100W
Motor
IPM
SPM
4
TM