IRMCF171 查看數據表（PDF） - International Rectifier
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IRMCF171 Datasheet PDF : 36 Pages
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IRMCF171
1 Overview
IRMCF171 is a new generation International Rectifier integrated circuit device primarily designed as a one-chip
solution for complete inverterized appliance motor control applications. Unlike a traditional microcontroller or
DSP, the IRMCF171 provides a built-in closed loop sensorless control algorithm using the unique flexible Motion
Control Engine (MCETM) for permanent magnet motors as well as induction motors. The MCETM consists of a
collection of control elements, motion peripherals, a dedicated motion control sequencer and dual port RAM to
map internal signal nodes. IRMCF171 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 programming is achieved using a dedicated graphical compiler
integrated into the MATLAB/SimulinkTM 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 IRMCF171.
IRMCF171 contains 64 Kbytes of Flash program memory. The IRMCK171 contains 32 Kbytes OTP memory and
is intended for high volume production purposes while the IRMCF171 is intended for flexible volume production.
Both the Flash and ROM versions come in a 48-pin QFP package with identical pin configuration to facilitate PC
board layout and transition to mass production.
Host
Communication
(RS232C)
Passive
EMI
Fillter
Appliance PM
motor Drive
Galvanic
isolation
15V
Gate signal
IRMCF171
Power
Supply
3 .3V
IRS2336 D
Optional
EEPROM
2
8
Digital I/O
6
Analog Input
Figure 1. Typical Application Block Diagram Using IRMCF171
PM motor
IPM or SPM
Or
IM motor
5 www.irf.com
© 2013 International Rectifier
April 20, 2013
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