Cinterion
®
MV31-W Hardware Interface Description
5 Operation
75
t
MV31-W_HID_v01.009a
2022-04-27
Public / Preliminary
Page 44 of 76
5
Operation
5.1
Operating Modes
TBD.
5.2
Operating Temperatures
Note: Within the specified operating temperature ranges the board temperature may vary to a
great extent depending on operating mode, used frequency band, radio output power and cur-
rent supply voltage. Note also the differences and dependencies that usually exist between
board (PCB) temperature of the MV31-W and its ambient temperature.
Table 17:
Temperature characteristics
Parameter
Min
Typical
Max
Unit
Normal operation
1
1. Board temperature.
-30
25
+70
°C
Extended operation
2
2. Extended operation allows normal mode data transmission for limited time until automatic thermal
shutdown takes effect. Within the extended temperature range (outside the normal operating tem-
perature range) the specified electrical characteristics may be in- or decreased.
-40 to -30
+70 to +85
°C
Thermal Throttling Thresholds
3
:
3. Due to temperature measurement uncertainty, a tolerance of ±2°C on these switching thresholds
may occur.
Level 1 PA Sensor
+80
°C
Level 1 SKIN Sensor
+85
°C
Level 2 PA Sensor
+83
°C
Level 3 PA Sensor
+89
°C
Level 3 SKIN Sensor
+89
°C
Thermal resistance (R
th
)
4
4. Thermal resistance (R
th
) of the 5G M.2 Data Card MV31-W at the highest possible thermal power
(P
th
) dissipation, i.e., at the worst possible network conditions. Measured with the Starter Kit 5G Data
Card in still air with an air gap of at least 100mm between the Starter Kit and other objects.
6.67
K/W
