March 19, 2004 Rev 1.0

IRMCS2033

Low Voltage Sensorless Drive Design Platform

for Permanent Magnet Motors

Features

Low cost complete AC sensorless drive design

platform

IRMCK203 IC for complete sensorless control

Simple design with IR2175 current sensing HVIC

350W output power with MOSFET inverter

Wide speed range and high speed operation

Support any permanent magnet AC motors

Low loss/EMI Space Vector PWM

No phase voltage feedback sensing

Low cost A/D interface with multiplexer

4-channel D/A output for diagnostics/monitoring

ServoDesigner

RS232C/RS422 and fast SPI interface

Parallel interface for microcontroller expansion

Over-current and ground fault protection

Over-voltage / Under-voltage protection

Dynamic Braking control with on-board brake

resistor

Discrete I/Os (START/STOP, FAULT, FLTCLR,

SYNC, ESTOP, DIR, PWM Enable)

Configuration data retention at power up/down

Description

IRMCS2033 is a Sensorless drive design platform for low

voltage applications up to 350W output power. The

system contains the latest advanced motion control IC,

IRMCK203, and the ServoDesigner

TM

software. The

complete B/Ms and schematics are provided so that the

user can adapt and tailor the design per application

needs. The system does not require any software code

development due to the unique Motion Control Engine

implemented in the IRMCK203 IC. Users can readily

evaluate high performance Sensorless control without

spending the development effort usually required in the

traditional

DSP

or

microcontroller

based

system.

IRMCS2033 contains advanced iMOTION chipset such as

IR2175 monolithic current sensing ICs and IRMCK203 full

Sensorless Permanent Magnet motor drive, which

enables simple and cost effective motion control design.

Product Summary

Speed operation range (typical)

5 to 100%

High speed operation

100,000 rpm (2 pole)

Speed accuracy

0.01%

Speed resolution

15 bit

PWM carrier frequency

65 kHz max

Sensorless control computation time

10 usec

Input dc voltage range

22 to 50 V (typical)

Continuous output current

6 Arms @20KHz fPWM

Overload output current

18 Arms (3 secs)

Continuous output power

350 W

Max RS232C speed

57.6 kbps

Optional RS422 communication

1 Mbps

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