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PDF IRMCF311 Data sheet ( Hoja de datos )
| Número de pieza | IRMCF311 | |
| Descripción | Dual Channel Sensorless Motor Control IC | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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Data Sheet No. PD60312B
1/02/2014
IRMCF311
Dual Channel Sensorless Motor Control IC
for Appliances
Features
MCETM (Motion Control Engine) - Hardware based
computation engine for high efficiency sinusoidal
sensorless control of permanent magnet AC motor
Integrated Power Factor Correction control
Supports both interior and surface permanent
magnet motors
Built-in hardware peripheral for single shunt
current feedback reconstruction
No external current or voltage sensing operational
amplifier required
Dual channel three/two-phase 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
Two serial communication interface (UART)
I2C/SPI serial interface
Watchdog timer with independent analog clock
Three general purpose timers
Two special timers: periodic timer, capture timer
External EEPROM and internal RAM facilitate
debugging and code development
Pin compatible with IRMCK311, OTP-ROM version
1.8V/3.3V CMOS
Product Summary
Maximum crystal frequency
60 MHz
Maximum internal clock (SYSCLK) frequency 128 MHz
Sensorless control computation time
MCETM computation data range
11 μsec typ
16 bit signed
Program RAM loaded from external EEPROM 48K bytes
Data RAM
8K bytes
GateKill latency (digital filtered)
2 μsec
PWM carrier frequency counter
16 bits/ SYSCLK
A/D input channels
6
A/D converter resolution
12 bits
A/D converter conversion speed
2 μsec
8051 instruction execution speed
2 SYSCLK
Analog output (PWM) resolution
8 bits
UART baud rate (typ)
57.6K bps
Number of I/O (max)
14
Package (lead-free)
QFP64
Description
IRMCF311 is a high performance RAM based motion control IC designed primarily for appliance applications. IRMCF311 is
designed to achieve low cost and high performance control solutions for advanced inverterized appliance motor control.
IRMCF311 contains two computation engines. One is Motion Control Engine (MCETM) for sensorless control of permanent
magnet motors; the other is an 8-bit high-speed microcontroller (8051). Both computation engines are integrated into one
monolithic chip. The MCETM contains a collection of control elements such as Proportional plus Integral, Vector rotator, Angle
estimator, Multiply/Divide, Low loss SVPWM, Single Shunt IFB. The user can program a motion control algorithm by
connecting these control elements using a graphic compiler. Key components of the sensorless control algorithms, such as
the Angle Estimator, are provided as complete pre-defined control blocks implemented in hardware. A unique analog/digital
circuit and algorithm to fully support single shunt current reconstruction is also provided. The 8051 microcontroller performs 2-
cycle instruction execution (60MIPS at 120MHz). The MCE and 8051 microcontroller are connected via dual port RAM to
process signal monitoring and command input. An advanced graphic compiler for the MCETM is seamlessly integrated into the
MATLAB/Simulink environment, while third party JTAG based emulator tools are supported for 8051 developments.
IRMCF311 comes with a small QFP64 pin lead-free package.
Rev C
1 page  
IRMCF311
2 IRMCF311 Block Diagram and Main Functions
IRMCF311 block diagram is shown in Figure 2.
8051 Microcontroller
Monitoring
Host
Interface
EEPROM
Interface
Digital
I/Os
3 D/A
(PWM)
Periodic
Timer
Timer
Counnter0
Timer
Counnter1
Timer
Counnter2
Watchdog
Timer
2
UART0
2 UART1
2/4 I2C / SPI
(4) PORT 1
(2) PORT 2
(4) PORT 3
(4) PORT 5
Program
RAM
48KBytes
8bit
CPU
Core
Local
RAM
2KBytes*
Emulator
Debugger
4
JTAG
Interrupt
Control
Crystal
(4MHz)
2
PLL
120MHz
MCE (Motion Control Engine)
Dual Port
RAM
512 Bytes*
MCE
Program
RAM
5.5KBytes*
* Sizes are
configurable
Dual Channel
Low Loss
SVPWM
6
6
PFC
PWM
To motor1 IGBT
gate drive
CGATEKILL
To motor2 IGBT
gate drive
FGATEKILL
To PFC
IGBT gate drive
PFCGKILL
Motion
Control
Modules
Single Shunt
Current
Sensing
3
3
Motor1 shunt
resistor
Motor2 shunt
resistor
3 AC line volt
sensing
A/D
MUX
S/H
&
OP Amp
3 PFC current
sensing
AIN0
DC bus volt
sensing
AIN1
Analog inputs
Motion Control
Sequencer
Figure 2. IRMCF311 Internal Block Diagram
IRMCF311 contains the following functions for sensorless AC motor control applications:
• Motion Control Engine (MCETM)
o Proportional plus Integral block
o Low pass filter
o Differentiator and lag (high pass filter)
o Ramp
o Limit
o Angle estimate (sensorless control)
o Inverse Clark transformation
o Vector rotator
o Bit latch
5
5 Page 
AIN0
AIN1
IRMCF311
Input, Analog input channel 0 (0 - 1.2V), typically configured for DC bus
voltage input
Input, Analog input channel 1 (0 - 1.2V), needs to be pulled down to
AVSS if unused
4.4 Power Interface Group
VDD1
VDD2
VSS
PLLVDD
PLLVSS
Digital power for I/O (3.3V)
Digital power for core logic (1.8V)
Digital common
PLL power (1.8V)
PLL ground return
4.5 Test Interface Group
TSTMOD
P5.1/TDI
P5.2/TMS
TCK
P5.3/TDO
Must be tied to VSS, used only for factory testing.
Input, JTAG test data input, or programmable discrete I/O
Input, JTAG test mode select, or programmable discrete I/O
Input, JTAG test clock
Output, JTAG test data output, or programmable discrete I/O
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet IRMCF311.PDF ] | |
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