TMCM-1076 Hardware Manual • Hardware Version V1.10 | Document Revision V1.00 • 2018-JUN-25
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6 Operational Ratings and Characteristics
6.1 Absolute Maximum Ratings
Parameter
Min Max Unit
Supply voltage
+10
+30
V
Working temperature
-30
+40
° C
Motor coil current / sine wave
peak
4.2
A
Continuous motor current (
RMS
)
3
A
NOTICE
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.
Keep the power supply voltage below the upper limit of +30V! 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
Unit
Supply voltage
V DD
10
24
30
V
Motor coil current / sine wave
peak
(chopper regu-
lated, adjustable via TTL UART interface)
I
COILpeak
0
4.2
A
Continuous motor current (
RMS
)
I
COILRM S
0
3
A
Power supply current
I
DD
I
COIL
1.4
∗
I
COIL
A
Table 9: Electrical Characteristics
6.3 I/O Ratings (Ambient Temperature 25° C)
Parameter
Symbol
Min
Typ Max Unit
COMM input voltage
V
COM M
3.3
5
6
V
Input frequency of optically isolated I/Os
f
in
45
kHz
TTL UART input voltage
V
T T L
_
IN
5
5.5
V
TTL UART low level voltage
V
T LL
L
0
1.75 V
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