Electrical, Reliability And Radio Characteristics; Absolute Maximum Ratings; Power Supply Ratings - Quectel EC21 Series Hardware Design

6
Electrical, Reliability and Radio
Characteristics

6.1. Absolute Maximum Ratings

Absolute maximum ratings for power supply and voltage on digital and analog pins of the module are
listed in the following table.
Table 30: Absolute Maximum Ratings
Parameter
VBAT_RF/VBAT_BB
USB_VBUS
Peak Current of VBAT_BB
Peak Current of VBAT_RF
Voltage at Digital Pins
Voltage at ADC0
Voltage at ADC1

6.2. Power Supply Ratings

Table 31: Power Supply Ratings
Parameter Description
VBAT VBAT_BB and
EC21_Hardware_Design
Min.
-0.3
-0.3
0
0
-0.3
0
0
Conditions
Voltage must stay within the
Confidential / Released
LTE Module Series
EC21 Hardware Design
Max. Unit
4.7 V
5.5 V
0.8 A
1.8 A
2.3 V
VBAT_BB V
VBAT_BB V
Min. Typ. Max.
3.3 3.8 4.3
Unit
V
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