TMCM-1070 Hardware Manual • Hardware Version V1.00 | Document Revision V1.00 • 2016-Sept-16
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6 Operational Ratings and Characteristics
6.1 Absolute Maximum Ratings
Parameter
Min Max Unit
Supply voltage
+9
+28
+40
1.4
V
Working temperature
Motor coil current / sine wave peak
Continuous motor current (RMS)
-30
° C
A
1.0
A
Never Exceed the absolute maximum ratings! Stresses above those listed
under "‘Absolute Maximum Ratings"’ may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those
or any other conditions above those indicated in the operation listings of this
specification is not implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
NOTICE
Keep the power supply voltage below the upper limit of +28V! Otherwise
the board electronics will seriously be damaged! Especially, when the selected
operating voltage is near the upper limit a regulated power supply is highly
recommended.
6.2 Electrical Characteristics (Ambient Temperature 25° C)
Parameter
Symbol
Min Typ
Max
26
Unit
V
Supply voltage
V DD
9
0
24
Motor coil current / sine wave peak (chopper regu- ICOILpeak
lated, adjustable via TTL UART interface)
1.4
A
Continuous motor current (RMS)
ICOILRMS
IDD
0
1.0
A
A
Power supply current
ꢀ ICOIL 1.4∗ICOIL
Table 9: Electrical Characteristics
6.3 I/O Ratings (Ambient Temperature 25° C)
Parameter
Symbol
VCOMM
fin
Min Typ Max
Unit
V
COMM input voltage
3.3
5
+V DD
45
Input frequency of optically isolated I/Os
TTL UART input voltage
TTL UART low level voltage
kHz
V
VT T L_IN
5
5.5
VT LL
0
1.75
V
L
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