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Part: IRMCK201
Category:
Power Management
-> Motor Controller/Drivers
-> AC Motor drivers/Controllers
Description: Complete ac Servo Motor Control ic One-chip Solution For Complete Closed Loop Current Control And Velocity Control For a High Performance Servo Drive System
Company: International Rectifier Corp.
Datasheet: Download IRMCK201 datasheet File size : 52 kB
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Datasheet text preview:
Data Sheet No. PD60224 Rev.A
IRMCK201
High Performance Configurable Digital AC Servo Control IC
Features
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Complete closed loop current control (Synchronously Rotating Frame Field Orientation) Versatile Space Vector PWM Direct interface to IR2175 current sensing high voltage IC Direct Encoder interface with multiplexed/nonmultiplexed Hall A/B/C signals Direct interface to IR213x 3-phase gate driver IC Closed loop velocity control
Product Summary
Max. Clock Input (Sysclk) Max. PLL clock for current feedback 33.3 MHz 133.3 MHz
Closed loop current control computation time 6 µsec max Closed loop current loop bandwidth (-3 dB) Closed loop velocity loop update rate PWM carrier frequency 5.5 kHz 5 / 10 kHz 83.3 kHz max 12 bit calibrated 8 MHz
PWM counter resolution Configurable architecture o Supports AC PM motor or Induction motor Current feedback temp drift/offset o Closed loop or open loop control
Asynchronous serial communication interface (RS232C, RS422) Fast SPI interface 4 channel 12-bit A/D interface with simultaneous sample/hold 8-bit parallel bus interface for microcontroller expansion (supports most 8-bit microprocessors) Integrated brake IGBT control ServoDesignerTM (Configuration Tool) available
Max SPI clock Package: QFP100
Description
IRMCK201 is a complete AC servo motor control IC. It contains closed loop current control for sinusoidal AC current, and closed loop velocity control based on encoder position feedback interface. A standard communication port is provided for RS232C or RS422, in addition to a fast SPI communication interface. Unlike a traditional DSP or a microcontroller, the IRMCK201 does not require any programming effort to complete the complex control algorithm. It allows users to configure the algorithm for specific application needs. Permanent magnet motor or AC induction motor are supported. IRMCK201 facilitates high performance servo design together with the IR2175 current sensing IC and IR213x high voltage 3-phase gate driver IC, which simplifies the hardware design while minimizing cost. For multi-axis applications, IRMCK201 can be used as a multi-drop slave drive based on the SPI protocol. The package is available in a 100-pin QFP.
IRMCK201 Overview
IRMCK201 is a new International Rectifier integrated circuit device designed as a one-chip solution for complete closed loop current control and velocity control for a high performance servo drive system. Unlike a traditional microcontroller or DSP, IRMCK201 does not require any programming to complete complex AC servo algorithm development. Combined with International Rectifier's high voltage gate drive and current sensing IC, the user can implement a complete AC servo control with minimum component count and virtually no design effort. Although IRMCK201 contains dedicated logic to perform closed loop control of AC current and velocity, it has a wide range of application coverage through its flexible configuration ability. The drive can be easily configured for induction machine closed loop vector control or permanent magnet motor servo drive. Rich motion peripherals, analog and digital I/O can also be configured. Host communication logic contains an asynchronous 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 user can write to and read from the predefined registers to configure and monitor the drive through these communication ports.
IRMCK201 Main Features
IRMCK201 contains the following functions for AC servo motor control applications: · · · · · · · · · · · · · · · · · · · · · · · · · Complete closed loop current control based on Synchronously Rotating Frame Field Orientation Configurable update rate with PWM carrier frequency Configurable parameters (all PI controller gains, PI output limit range, current feedback scaling, encoder feedback scaling) Configurable control structure for Induction machine or AC Permanent Magnet machine (Disable/enable slip gain) Closed loop velocity control with configurable update rate Enable/disable velocity loop Selectable reference input for torque and speed input Analog reference input RS232C/RS422 reference input Dynamic braking control for excess DC bus voltage Cycle-by-cycle on/off Control for Brake IGBT DC bus voltage feedback Standard Encoder interface with Hall ABC support A/B quadrature signal input up to 1 MHz Choice of separate or multiplexed Hall A/B/C signal input Auto-initialization with Hall A/B/C plus Z pulse input Adaptable for any line count encoder from 200 PPR to 10,000 PPR 1/T counter (2 MHz) for low speed performance improvement Space Vector PWM with deadtime insertion IR2175 current sensing IC interface IR213x high voltage gate driver IC interface Low cost serial 12 bit A/D interface with multiplexer and sample/hold circuit 4 channel analog output by PWM 0-3.3 V, 120 kHz output. EEPROM for startup initialization of internal data/parameters through host register interface AT24C01A, 128 x 8 Versatile host communication interface
This document is the property of International Rectifier and may not be copied or distributed without expressed consent.
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IRMCK201
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/O Start (Input) Stop (Input) IFBCAL (Input) Fault Clear (Input) Fault (Output) SYNC (Output) PWM Active (Output) LED Two-bit bi-color
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This document is the property of International Rectifier and may not be copied or distributed without expressed consent.
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