IRMCK171TR International Rectifier, IRMCK171TR Datasheet - Page 7

• Manufacturer Part Number: IRMCK171TR
• Description: A high performance OTP based motion control IC designed primarily for appliance applications.
• Manufacturer: International Rectifier

Specifications of IRMCK171TR

• Package: QFP48

3 IRMCK171 Block Diagram and Main Functions
IRMCK171 block diagram is shown in Figure 3.
IRMCK171 contains the following functions for sensorless AC motor control applications:
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Interface
Host
Digital
microcontroller
Monitoring
I/Os
•
command
Debugger
Emulator
8bit (8051)
Speed
SND
RCV
SCL
SDA
Motion Control Engine (MCE
Resonator
Ceramic
(4MHz)
o
o
o
o
o
o
o
o
o
o
o
o
o
2
Sensorless FOC (complete sensorless field oriented control)
Proportional plus Integral block
Low pass filter
Differentiator and lag (high pass filter)
Ramp
Limit
Angle estimate (sensorless control)
Inverse Clark transformation
Vector rotator
Bit latch
Peak detect
Transition
Multiply-divide (signed and unsigned)
Counnter0,1,2
Watchdog
Capture
PORT 1
PORT 2
PORT 3
4
(PWM)
UART
Timer
Timer
2
D/A
I2C
Synthesizer
Freq
JTAG
128MHz
32MHz
ROM/RAM
Program
TM
Interrupt
Control
Figure 3 IRMCK171 Block Diagram
2kbyte
Local
32kB
Core
RAM
CPU
8bit
)
Dual Port
Program
12kbyte
2kbyte
Mini-Motion
RAM
MCE
RAM
(MiniMCE)
Control
Engine
Motion Control
Sequencer
Modules
Control
Motion
Reconstruction
Motor Current
Single Shunt
Low Loss
SVPWM
MUX
A/D
S/H
IRMCK171
6
AIN5
IFB
AIN0
AIN1
AIN2
AIN3
AIN4
3
3
gate drive
resistor
To IGBT
GATEKILL
From
shunt
analog
input
7