IRMCK171_15 Datasheet, PDF (1/36 Pages) International Rectifier – High Performance Sensorless Motor Control IC

IRMCK171
High Performance Sensorless Motor Control IC
Description
IRMCK171 is a high performance One Time Programmable ROM based motion control IC designed and
optimized for appliance control which contains two computation engines integrated into one monolithic
chip. One is the Flexible Motion Control Engine (MCE^TM) for sensorless control of permanent magnet
motors or induction motors; the other is an 8-bit high-speed microcontroller (8051). The user can program
a motion control algorithm by connecting these 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
shunt or leg shunt current reconstruction. IRMCK171 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
• Internal 32Kbyte OTP ROM
• 3.3V single supply
Product Summary
Maximum clock input (fcrystal)
MHz
Maximum Internal clock (SYSCLK)
Maximum 8051 clock (8051CLK)
MCE^TM computation data range
signed
8051/MCE Data RAM
MCE Program RAM
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)
Maximum 3.3V operating current
60
128MHz
32MHz
16 bit
2KB
12KB
20 bits/ SYSCLK
7
12 bits
2 μsec
8 bits
57.6 Kbps
10
QFP48
60mA
Base Part Number
IRMCK171
Package Type
QFP
Standard Pack
Form
Quantity
Tray
2500
Tape and Reel
2000
Orderable Part Number
IRMCK171TY
IRMCK171TR
1 www.irf.com
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May 28, 2014