User's Manual l MBLS1028A UM 0100 l © 2020, TQ-Systems GmbH
Page 34
7.
SAFETY REQUIREMENTS AND PROTECTIVE REGULATIONS
7.1
EMC
Since the MBLS1028A is a development platform, no EMC tests have been performed.
7.2
ESD
ESD protection is provided on most interfaces of the MBLS1028A.
The circuit diagram shows which interfaces provide ESD protection.
7.3
Operational safety and personal security
Tests for operational safety and personal protection were not carried out due to the voltages ≤30 V DC.
8.
CLIMATIC AND OPERATIONAL CONDITIONS
In general reliable operation is given when the following conditions are met:
Table 29:
Climatic and operational conditions MBLS1028A
Parameter
Range
Remark
Ambient temperature
0 °C to +60 °C
With Lithium battery
Ambient temperature
0 °C to +70 °C
Without Lithium battery
Storage temperature
–10 °C to +60 °C
With Lithium battery
Relative humidity (operation / storing)
10 % to 90 %
Not condensing
Attention: TQMLS1028A heat dissipation
The LS1028A CPU belongs to a performance category in which a cooling system is essential.
It is the user’s sole responsibility to define a suitable heat sink (weight and mounting position)
depending on the specific mode of operation (e.g., dependence on clock frequency, stack height,
airflow, and software).
Particularly the tolerance chain (PCB thickness, board warpage, BGA balls, BGA package, thermal pad,
heatsink) as well as the maximum pressure on the TQMLS1028A must be taken into consideration
when connecting the heat sink.
The TQMLS1028A is not the highest component. Inadequate cooling connections can lead to
overheating of the TQMLS1028A and thus malfunction, deterioration or destruction.
8.1
Protection against external effects
Protection class IP00 was defined for the MBLS1028A. There is no protection against foreign objects, touch or humidity.
8.2
Reliability and service life
No detailed MTBF calculation has been done for the MBLS1028A.
The MBLS1028A is designed to be insensitive to vibration and impact.
