TMC-IDX TRINAMIC, TMC-IDX Datasheet - Page 24

• Manufacturer Part Number: TMC-IDX
• Description: DRIVE, STEPPER MOTOR, 3.5A
• Manufacturer: TRINAMIC

Specifications of TMC-IDX

• Supply Voltage Range: 12VDC To 48VDC
• Output Current: 3.5A
• Current Limit Max: 5A
• External Depth: 23mm
• External Length / Height: 63mm
• External Width: 63mm
• Load Current: 3.5A
• No. Of Output Channels: 2
• Supply: RoHS Compliant
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes

6.2.2.4 Chopper mode 3 (Phase and SPI)
This mode combines the modes 2 (Phase) and 0 (SPI) in order to provide highest accuracy at lower
velocities and also the possibility for faster movements. Through the switching between modes some
microsteps may be lost. Microstep resolution must not be higher than 64. It is set according to Phase
mode, so possible values for Z (microstep resolution) are 2, 3 or 4.
Conversion of values above to motors with different fullstep resolutions:
6.2.2.5 Chopper mode 4 (PWM and SPI)
This mode combines the modes 1 (PWM) and 0 (SPI) in order to provide higher accuracy (up to 64
microsteps) at lower velocities and also the possibility for faster movements. For higher velocities in
SPI mode the microstep resolution is always 16, but set resolution is simulated. Through the switching
between modes some microsteps may be lost. Microstep resolution must not be higher than 64. It is
set according to Phase mode, so possible values for Z (microstep resolution) are 2, 3 or 4. This mode
should only be used in very special occasions and mode 3 should be preferred if a combination of high
accuracy at slow movements and high speed is needed.
Copyright © 2005, TRINAMIC Motion Control GmbH & Co. KG
µ-steps
v
motor
64
32
16
(
rounds
/
) s
=
V-value
v
table
(
Table 6.10: Chopper mode 3 switching velocities
rounds
192000
200
Phase to SPI
96000
48000
/
) s
⋅
motors
Rounds/s
fullsteps
2.24
2.24
2.24
per
revolution
V-value
25000
12500
SPI to Phase
6250
Rounds/s
0.29
0.29
0.29