IRMCF171_15 Datasheet, PDF (1/36 Pages) International Rectifier – High Performance Sensorless Motor Control IC

Release Datasheet Rev. A
IRMCF171
High Performance Sensorless Motor Control IC
Description
IRMCF171 is a high performance flash memory based motion control IC designed primarily for appliance
applications. IRMCF171 is designed to achieve low cost yet high performance control solutions for advanced
inverterized appliance motor control. IRMCF171 contains two computation engines integrated into one monolithic
chip. One is the Flexible Motion Control Engine (MCE^TM) for sensorless control of permanent magnet or induction
motors; the other is an 8-bit high-speed microcontroller (8051). The user can program a motion control algorithm
by connecting control elements using a graphic compiler. Key components of the complex sensorless control
algorithms, such as the Angle Estimator, are provided as complete pre-defined control blocks. A unique
analog/digital circuit and algorithm fully supports single or leg shunt current reconstruction. The MCE and 8051
microcontroller communicate via dual port RAM for signal monitoring and command input. An advanced graphic
compiler for the MCE^TM is seamlessly integrated into the MATLAB/Simulink environment, while third party JTAG-
based emulator tools are supported for 8051 software development including a flash programmer. IRMCF171
comes in a 48 pin QFP package.
Features
 MCE^TM (Flexible Motion Control Engine) -
Dedicated computation engine for high efficiency
sinusoidal sensorless motor control
 Built-in hardware peripheral for single or two shunt
current feedback reconstruction and analog
circuits
 Supports induction machine and both interior and
surface permanent magnet motor sensorless
control
 Loss minimization Space Vector PWM
 Two-channel analog output (PWM)
 Embedded 8-bit high speed microcontroller (8051)
for flexible I/O and man-machine control
 JTAG programming port for emulation/debugger
 Serial communication interface (UART)
 I2C/SPI serial interface
 Three general purpose timers/counters
 Two special timers: periodic timer, capture timer
 Watchdog timer with independent internal clock
 Internal 64 Kbyte flash memory
 5V tolerant I/O
 3.3V single supply
Product Summary
Maximum clock input (f_crystal)
Maximum Internal clock (SYSCLK)
Maximum 8051 clock (8051CLK)
Sensorless control computation time
MCE^TM computation data range
8051 Program Flash
805/MCE Data RAM
MCE Program RAM
GateKill latency (digital filtered)
PWM carrier frequency
A/D input channels
A/D converter resolution
A/D converter conversion speed
Analog output (PWM) resolution
UART baud rate (typ)
Number of digital I/O (max)
Package (lead free)
Typical 3.3V operating current
60 MHz
120MHz
30MHz
35 μsec@100MHz
16 bit signed
52KB
4KB
12KB
2 μsec
20 bits/ SYSCLK
7
12 bits
2 μsec
8 bits
57.6K bps
14
QFP48
30mA
Base Part Number
IRMCF171
IRMCF171
Package Type
LQFP48
LQFP48
Standard Pack
Form
Tape and Reel
Quantity
2000
Tray
2500
Orderable Part Number
IRMCF171TR
IRMCF171TY
1 www.irf.com
© 2013 International Rectifier
April 20, 2013