TMC428 Datasheet, PDF (1/50 Pages) List of Unclassifed Manufacturers – Intelligent Triple Stepper Motor Controller with Serial Peripheral Interfaces

TMC428 DATA SHEET (V. 1.00 / February 12, 2001)
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TMC 428 – DATA SHEET
Intelligent Triple Stepper Motor Controller with
Serial Peripheral Interfaces
TRINAMIC
MICROCHIPS
TRINAMIC^® Microchips GmbH
Deelbögenkamp 4C
D – 22297 Hamburg
GERMANY
T +49 - (0) 40 - 51 48 06 - 0
F +49 - (0) 40 - 51 48 06 - 60
www.trinamic.com
[e-mail]
Features
The TMC428 is a miniaturized high performance stepper motor controller. It controls up to three 2-phase
stepper motors. All motors can operate independently. The TMC428 allows up to 6 bit micro step
resolution– which is up to 64 micro steps per full step –individually selectable for each motor. Once
initialized, it performs all real time critical tasks autonomously based on target positions and velocities,
which may be altered on-the-fly. So, an inexpensive micro controller together with the TMC428 forms a
complete motion control system. The micro controller is free to do application specific interfacing and high
level control functions. Both, the communication with the micro controller and with one to three daisy
chained stepper motor drivers take place via two separate 4 wire serial peripheral interfaces. The TMC428
directly connects to SPI^TM* smart power stepper motor drivers.
• Controls up to three 2-phase stepper motors
• Serial 4-wire interface for µC with easy-to-use protocol
• Configurable interface for SPI^TM motor drivers
• Different types of SPI^TM stepper motor driver chips may by mixed within a single daisy chain
• Communication on demand minimizes traffic to the SPI^TM stepper motor drivers chain
• Programmable SPI^TM data rates up to 1 Mbit/s
• Wide range for clock frequency – can use CPU clock up to 16 MHz
• Internal 24 bit wide position counters
• Full step frequencies up to 20 kHz
• Read-out facility for actual motion parameters (position, velocity, acceleration) and driver status
• Individual micro step resolution of {64, 32, 16, 8, 4, 2, 1} micro steps via built-in sequencer
• Programmable 6 bit micro step table with up to 64 entries for a quarter sine wave period
• Built-in ramp generators for autonomous positioning and speed control
• On-the-fly alteration of target motion parameters (like position, velocity, acceleration)
• Automatic acceleration dependent current control (power boost)
• Power down mode (100 µA) with transparent wake-up for normal operation (typical 5 mA @ 16 MHz)
• 3.3V or 5V operation with CMOS / TTL compatible IOs (all inputs Schmitt-Trigger)
• Ultra small 16 pin SSOP package (optional 24 pin SOIC24 package)
• Integrated power-on-reset
* _{SPI is Trademark of Motorola, Inc.}
Copyright © 2000, TRINAMIC Microchips GmbH
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TRINAMIC
MICROCHIPS