TMC424 Datasheet, PDF (1/21 Pages) TRINAMIC Motion Control GmbH & Co. KG. – Serial Triple Incremental Encoder Interface

TMC424 Datasheet – (V1.04 / 2015-JUL-01)
1/21
TMC424 – Datasheet
Serial Triple Incremental
Encoder Interface
TRINAMIC Motion Control GmbH & Co. KG
Waterloohain 5
D – 22769 Hamburg
GERMANY
WWW.TRINAMIC.COM
GND
1
ENC1_A
ENC1_B
ENC1_N
ENC2_A
ENC2_B
ENC2_N
GND
ENC3_A
ENC3_B
GND
ENC3_N
VCORE
STEP1
VCORE
VCCI
DIR1
STEP2
DIR2
STEP3
DIR3
VCC
GND
25
TMC424
TQFP-100 Package
75
GND
VCC
VCORE
GND
VCCI
CLK
VCC
TRST
TDO
VCC
51
GND
TMC424 Main Features
The TMC424 is a triple incremental encoder input chip, which interfaces to any SPI^TM compatible
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
 Fast 32 bit SPI^TM interface
 Can share SPI^TM interface with TMC429 and supplies separate interrupt output
 Integrates Reference Switch Multiplexers
 Package: TQ100
Note: SPI is Trademark of Motorola, Inc.
Copyright © 2011 TRINAMIC Motion Control GmbH & Co. KG