IRMCK203 Control IC Datasheet

IRMCK203 Datasheet, PDF, Equivalent


Part Number

IRMCK203

Description

High Performance Sensorless Motion Control IC

Manufacture

International Rectifier

Total Page 30 Pages
Datasheet
Download IRMCK203 Datasheet


IRMCK203
Data Sheet No. PD60225 revA
IRMCK203
High Performance Sensorless Motion Control IC
Features
! Complete Sensorless control IC for Permanent
Magnet AC motors
! No phase voltage feedback sensing required
! Sinusoidal current waveform with Synchronously
Rotating Frame closed loop current control
! High starting torque and smooth speed ramping
! Direct interface to IR2175 current sensing high
voltage IC
! Auto Retry at startup with configurable starting
torque
! Versatile loss minimization Space Vector PWM
! Serial communication interface (RS232C, RS422,
SPI)
! I2C serial interface to 1k bit serial EEPROM for
parameter storage for stand alone operation
! Phase loss/Overcurrent/Overvoltage protection
! 7-bit discrete I/O for sequencing and status
monitor
! Integrated brake IGBT control for dc bus voltage
limitation
! ServoDesignerTM tool for easy operation
! Parallel interface for microcontroller expansion
Product Summary
Max Clock input
33.3 MHz
Sensorless control computation time
10 µsec max
Speed operating range (typical)
5% to 100%
Speed control resolution
15 bit full range
Adjustable current limit at start-up
15 bit full range
Programmable retry on start-up
max 16 trials
Over current, speed, phase loss, dc bus fault protection
PWM carrier frequency
16 bit/33MHz
IR2175 Current feedback data resolution
10bit
Inverter leg current sensing (optional)
12bit
RS232C speed
up to 57.6 Kbps
Optional RS422 communication
up to 1 Mbps
Max SPI Clock
8 MHz
Package: QFP80
Description
IRMCK203 is a high performance digital motion control IC for Sensorless AC permanent magnet motor application. Control is
based on closed loop vector control for sinusoidal Back EMF motors. With IRMCK203, the users can readily build a high
performance Sensorless drive system without any programming effort and minimum start-up time. Built-in unique start-up and
ramping algorithm enables wide application. This IC is versatile enough that the users can configure and optimize system
performance according to the needs of each application. With International Rectifier iMOTION products including high voltage
ICs such as IR2175 current sensing IC and IRAM series of Intelligent IGBT module in combination with IRMCK203, the end
result is a fully optimized system with reduced electronics component counts. This simplifies the design for low cost Sensorless
drive modules. IRMCK203 can be easily adapted to various permanent magnet motors through ServoDesignerTM tool, which is
the fully configurable graphic user interface tool.
This document is the property of International Rectifier and may not be copied or distributed without expressed consent.

IRMCK203
IRMCK203
Overview
IRMCK203 is a new International Rectifier integrated circuit device designed for one-chip solution for complete
closed loop current and velocity control of a high performance Sensorless drive for PM motors. Unlike a traditional
microcontroller or DSP, IRMCK203 does not require any programming to complete complex Sensorless algorithm
development. Combined with International Rectifier's high voltage gate drive and current sensing IC, the user can
implement complete speed control of PM motors with minimum component count and virtually no design effort. In
addition to Sensorless closed loop speed control operation, features such as Start-up retry, Phase Loss detection,
Low Loss PWM, Regeneration Braking control and various drive protections are all implemented inside
IRMCK203. Analog and digital I/Os can also be configured. Host communication logic contains Asynchronous
Communication Interface for RS232C or RS422 communication interface, a fast slave SPI interface and an 8 bit
wide Host Parallel Interface. All communication ports have the same access capability to the host register set. The
users can write to, and read from the predefined registers to configure and monitor the drive through these
communication ports.
IRMCK203 Main functions
Complete closed loop current control based on Synchronously Rotating Frame Field Orientation (using Rotor
Angle Observer)
Closed loop velocity control based on estimated speed
Configurable parameters (PI controller gains, PI output limit range, current feedback
scaling, PWM carrier frequency) provide adaptation to various PM motors
Built-in Sensorless control logic for start-up, ramping, and running conditions
Auto Retry (programmable) on start-up with configurable torque current limit
Analog reference input (can be used for speed reference)
RS232C/RS422 reference input
Full dynamic braking control for DC bus voltage limitation
Cycle-by-cycle on/off Control for Brake IGBT
Loss minimization Space Vector PWM with deadtime insertion
Build-in two IR2175 current sensing IC interfaces
Phase Loss, Overcurrent (GATEKILL input), Overvoltage, Undervoltage, Overspeed protection
Low cost serial 12bit A/D interface with multiplexer and sample/hold circuit
Optional Inverter Leg (low side) current sensing in lieu of IR2175 IC
4 channel analog output (PWM)
Local EEPROM for startup initialization of internal data/parameters through host register interface
AT24C01A, 128X8
Versatile host communication interface
RS232C or RS422 host interface
Fast SPI slave host interface with multi-drop capability
Parallel Host interface (total 12 pins)
Multiplexed data/address bus
Address Enable
RD/WR
Discrete I/Os for Standalone mode operation
STARTSTOP (Input)
ESTOP (Input)
This document is the property of International Rectifier and may not be copied or distributed without expressed consent.
2


Features Data Sheet No. PD60225 revA IRMCK203 Hi gh Performance Sensorless Motion Contro l IC Features ! ! ! ! ! ! ! ! ! ! ! ! ! ! Complete Sensorless control IC for P ermanent Magnet AC motors No phase volt age feedback sensing required Sinusoida l current waveform with Synchronously R otating Frame closed loop current contr ol High starting torque and smooth spee d ramping Direct interface to IR2175 cu rrent sensing high voltage IC Auto Retr y at startup with configurable starting torque Versatile loss minimization Spa ce Vector PWM Serial communication inte rface (RS232C, RS422, SPI) 2 I C serial interface to 1k bit serial EEPROM for parameter storage for stand alone opera tion Phase loss/Overcurrent/Overvoltage protection 7-bit discrete I/O for sequ encing and status monitor Integrated br ake IGBT control for dc bus voltage lim itation ServoDesigner TM Product Summa ry Max Clock input Sensorless control c omputation time Speed operating range ( typical) Speed control resolution Adjustable current limit at s.
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