Product Info
LTE  Standard  Module  Series 
   EC25  Series  Hardware  Design 
EC25_Series_Hardware_Design  83  / 134 
6.2. Power Supply Ratings 
Table 32: Power Supply Ratings 
6.3. Operating and Storage Temperatures 
The operating and storage temperatures are listed in the following table. 
Table 33: Operating and Storage Temperatures 
1. 
1) 
Within operating temperature range, the module is 3GPP compliant. 
2. 
2) 
Within extended temperature range, the module remains the ability to establish and maintain a 
voice, SMS, data transmission, etc. There is no unrecoverable malfunction. There are also no effects 
on radio spectrum and no harm to radio network. Only one or more parameters like P
out
 might reduce 
in  their  value and  exceed  the  specified  tolerances.  When  the  temperature  returns  to  the  normal 
Parameter 
Description 
Conditions 
Min. 
Typ. 
Max. 
Unit 
VBAT 
VBAT_BB and 
VBAT_RF 
The actual input voltages 
must be kept between the 
minimum and maximum 
values. 
3.3 
3.8 
4.3 
V 
Voltage drop during 
burst transmission 
Maximum power control 
level on EGSM900. 
400 
mV 
I
VBAT
Peak supply current 
(during transmission 
slot) 
Maximum power control 
level on EGSM900. 
1.8 
2.0 
A 
USB_VBUS 
USB connection 
detection 
3.0 
5.0 
5.25 
V 
Parameter 
Min. 
Typ. 
Max. 
Unit 
Operating Temperature Range
1)
-35 
+25 
+75 
ºC  
Extended Temperature Range
2)
-40 
+85 
ºC  
Storage Temperature Range 
-40 
+90 
ºC  
NOTES   










