Trinamic TMCM-078, Manual, Page: 14 / 27

TMCM-078 Manual (V1.03 / September 10th, 2008) 14
Copyright © 2008, TRINAMIC Motion Control GmbH & Co. KG
4 Operational Ratings
The operational ratings show the intended / the characteristic range for the values and should be
used as design values. In no case shall the maximum values be exceeded.
Symbol Parameter Min Typ Max Unit
V
S
Power supply voltage 12 ... 75 V
I
COIL
Motor coil current for sine wave peak
(chopper reg., software adjustable) 0.7 … 9.8 A
I
MC
Nominal RMS motor current 0.5 ... 7 A
f
CHOP
Motor chopper frequency (actual
frequency depends on operation mode)
20 or 36 kHz
t
SLP
Coil output slope 300 ns
I
S
Power supply current << I
COIL
1.4 * I
COIL
A
V
OPTON
Signal active voltage at disable, step and
direction input (optocoupler on), screw
connector 3.5 24 V
V
OPTOFF
Signal inactive voltage at disable, step
and direction input (optocoupler off),
screw connector 0 2 V
I
OPT
Optocoupler current (internally regulated) 4 8 mA
t
STEPLO
Step impulse low time (optocoupler on) 0.7 µs
t
STEPHI
Step impulse high time (optocoupler off) 2.0 µs
t
DIRSETUP
Direction setup time to rising edge of
step input
0 µs
t
DIRHOLD
Direction hold time after rising edge of
step input
3.0 µs
T
ENV
Environment temperature -25 70 °C
T
C
Temperature of case back (cooling plate) -25 85 °C
Table 4.1: Operational Ratings