TMC424 Datasheet – (V1.04 / 2015-JUL-01)

1/21

Copyright © 2011 TRINAMIC Motion Control GmbH & Co. KG

TMC424 – Datasheet

Serial Triple Incremental

Encoder Interface

TRINAMIC Motion Control GmbH & Co. KG

Waterloohain 5

D – 22769 Hamburg

GERMANY

WWW.TRINAMIC.COM

TMC424 Main Features

controller. The TMC424 can especially be used in conjunction with the TMC429 triple stepper motor

controller to provide position verification or stabilization using some additional software. It integrates

24 bit counters for each encoder to provide a high position resolution without CPU interaction. Further

it allows dynamic resolution adaptation to allow direct comparison of encoder counters with motors

using a different micro step resolution. All encoder counters can be latched synchronously, or

whenever a null channel event occurs, providing a position on strobe holding function. The TMC424

also provides a step / direction output with programmable signal shaping for the TMC429 as an

optional function. A multiplexer function is also integrated for the TMC429 reference switches. All

functions can also be used in conjunction.

Applications



Stepper Motor Position Verification



Position Maintenance



Incremental Encoder Interface Readout



Step / Direction conversion for TMC429 systems

Features



Supports 2 and 3 channel incremental encoders with a wide range of resolutions



Allows step / direction signal extraction from TMC429 output data stream



Programmable pulse shaping for step / direction interface



24 bit integrated position resolution



Programmable prescaler for Incremental Encoder Interface



4-times evaluation of encoder signals







Integrates Reference Switch Multiplexers



Package: TQ100

Note: SPI is Trademark of Motorola, Inc.

TMC424

TQFP-100 Package

GND

ENC1_A

ENC1_B

ENC1_N

ENC2_A

GND

ENC2_B

ENC2_N

ENC3_A

ENC3_B

ENC3_N

STEP1

DIR1

VCCI

STEP2

DIR2

STEP3

DIR3

VCORE

GND

GND

TDO

TRST

VCC

CLK

VCCI

VCC

GND

VCC

VCC

GND

VCORE

VCORE

1

25

75

51

GND