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
(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
TM
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
2KB
12KB
20 bits/ SYSCLK
7
12 bits
2 μsec
8 bits
57.6 Kbps
10
QFP48
60mA
128MHz
32MHz
16 bit
60
•
•
•
•
•
•
•
•
•
•
Base Part Number
IRMCK171
Package Type
QFP
Standard Pack
Form
Tray
Tape and Reel
Quantity
2500
2000
Orderable Part Number
IRMCK171TY
IRMCK171TR
1
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May 28, 2014
IRMCK171
Table of Contents
1
2
3
4
Overview ............................................................................................................................... 5
Pinout .................................................................................................................................... 6
IRMCK171 Block Diagram and Main Functions .................................................................... 7
Application connection and Pin function ............................................................................... 9
4.1
4.2
4.3
4.4
4.5
5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
7
8
9
10
11
8051 Peripheral Interface Group ................................................................................. 10
Motion Peripheral Interface Group .............................................................................. 11
Analog Interface Group ............................................................................................... 11
Power Interface Group ................................................................................................ 11
Test Interface Group ................................................................................................... 11
Absolute Maximum Ratings......................................................................................... 13
System Clock Frequency and Power Consumption .................................................... 13
Digital I/O DC Characteristics...................................................................................... 14
Analog I/O (IFB+,IFB-,IFBO, AIN5+,AIN5-,AIN5O) DC Characteristics ...................... 15
Under Voltage Lockout DC characteristics.................................................................. 16
Itrip comparator DC characteristics ............................................................................. 16
CMEXT and AREF Characteristics ............................................................................. 16
Digital PLL AC Characteristics .................................................................................... 17
Analog to Digital Converter AC Characteristics........................................................... 18
Op amp AC Characteristics ......................................................................................... 19
SYNC to SVPWM and A/D Conversion AC Timing ..................................................... 20
GATEKILL to SVPWM AC Timing ............................................................................... 21
Itrip AC Timing............................................................................................................. 21
Interrupt AC Timing ..................................................................................................... 22
I
2
C AC Timing .............................................................................................................. 22
SPI AC Timing ............................................................................................................. 23
UART AC Timing ......................................................................................................... 25
CAPTURE Input AC Timing ........................................................................................ 26
OTP Programming Timing........................................................................................... 27
JTAG AC Timing ......................................................................................................... 28
DC Characteristics .............................................................................................................. 13
AC Characteristics .............................................................................................................. 17
I/O Structure ........................................................................................................................ 29
Pin List ................................................................................................................................ 32
Package Dimensions .......................................................................................................... 34
Part Marking Information ..................................................................................................... 35
Qualification Information ..................................................................................................... 35
2
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IRMCK171
List of Tables
Table 1 Absolute Maximum Ratings ........................................................................................... 13
Table 2 System Clock Frequency ............................................................................................... 13
Table 3 Digital I/O DC Characteristics ........................................................................................ 14
Table 5 Analog I/O DC Characteristics ....................................................................................... 15
Table 6 UVcc DC Characteristics ............................................................................................... 16
Table 7 Itrip DC Characteristics .................................................................................................. 16
Table 8 CMEXT and AREF DC Characteristics .......................................................................... 16
Table 9 PLL AC Characteristics .................................................................................................. 17
Table 10 A/D Converter AC Characteristics ............................................................................... 18
Table 11 Current Sensing OP Amp AC Characteristics .............................................................. 19
Table 12 SYNC AC Characteristics ............................................................................................ 20
Table 13 GATEKILL to SVPWM AC Timing................................................................................ 21
Table 14 Itrip AC Timing ............................................................................................................. 21
Table 15 Interrupt AC Timing ...................................................................................................... 22
Table 16 I
2
C AC Timing .............................................................................................................. 22
Table 17 SPI Write AC Timing .................................................................................................... 23
Table 18 SPI Read AC Timing .................................................................................................... 24
Table 19 UART AC Timing ......................................................................................................... 25
Table 20 CAPTURE AC Timing .................................................................................................. 26
Table 21 OTP Programming Timing ........................................................................................... 27
Table 22 JTAG AC Timing .......................................................................................................... 28
Table 23 Pin List ......................................................................................................................... 33
3
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IRMCK171
List of Figures
Figure 1 Typical Application Block Diagram Using IRMCK171 ........................................................................ 5
Figure 2 Pinout of IRMCK171 ........................................................................................................................... 6
Figure 3 Crystal circuit example...................................................................................................................... 17
Figure 4 Voltage droop and S/H hold time ......................................................................................................18
Figure 5 A capacitor of 47pF is recommended at the output pin of all op amps. ...........................................19
Figure 6 SYNC timing .....................................................................................................................................20
Figure 7 Gatekill timing ...................................................................................................................................21
Figure 8 ITRIP timing ......................................................................................................................................21
Figure 9 Interrupt timing ..................................................................................................................................22
Figure 10 I
2
C Timing .......................................................................................................................................22
Figure 11 SPI write timing ............................................................................................................................... 23
Figure 12 SPI read timing ............................................................................................................................... 24
Figure 13 UART timing....................................................................................................................................25
Figure 14 CAPTURE timing ............................................................................................................................ 26
Figure 15 OTP programming timing................................................................................................................27
Figure 16 JTAG timing ....................................................................................................................................28
Figure 17 PWMUL/PWMUH/PWMVL/PWMVH/PWMWL/PWMWH output .................................................... 29
Figure 18 All digital I/O except motor PWM output ......................................................................................... 29
Figure 19 RESET, GATEKILL I/O ................................................................................................................... 30
Figure 20 Analog input ....................................................................................................................................30
Figure 21 Analog operational amplifier output and AREF I/O structure ....................................................... 30
Figure 22 VPP programming pin I/O structure................................................................................................ 31
Figure 23 VSS and AVSS pin structure ..........................................................................................................31
Figure 24 VDD1 and VDDCAP pin structure ..................................................................................................31
Figure 25 XTAL0/XTAL1 pins structure ..........................................................................................................31
4
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IRMCK171
1 Overview
IRMCK171 is a new generation 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 IRMCK171 provides a built-in closed loop sensorless control algorithm using
the unique flexible Motion Control Engine (MCE
TM
) for permanent magnet motors as well as induction
motors. The MCE
TM
consists of a collection of control elements, motion peripherals, a dedicated motion
control sequencer and dual port RAM to map internal signal nodes. IRMCK171 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/Simulink
TM
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 IRMCK171.
IRMCK171 contains 32K bytes of OTP program ROM, The IRMCF171 contains 64K bytes of Flash RAM
and intended for development purposes only while the IRMCK171 is intended for volume production.
Both the development 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)
Appliance PM
motor Drive
Passive
EMI
Fillter
Galvanic
isolation
15V
Gate signal
PM motor
IPM or SPM
Or
IM motor
IRS2336D
IRMCK171
Power
Supply
3.3V
Optional
EEPROM
Digital I/O
2
8
6
Analog Input
Figure 1 Typical Application Block Diagram Using IRMCK171
5
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May 28, 2014
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