Voltage Stability Requirements - Quectel BG95 A-GL Series Hardware Design

VBAT_BB 32
VBAT_RF 33
3, 31, 48, 50, 54, 55, 58, 59, 61, 62, 67–74, 79–82,
GND
89–91, 100–102
Table 10: Power Supply Pin Definition of BG955A-GL
Pin Name Pin No.
32
VBAT_BB
33
52
VBAT_RF
53
3, 31, 48, 50, 54, 55, 58, 59, 61, 62, 67–74, 79–82,
GND
89–91, 100–102
NOTE
For BG950A-GL/BG951A-GL/BG953A-GL, when the module starts up normally, to ensure full
functionality, the minimum supply voltage should be higher than 2.2 V. While for BG955A-GL, the
minimum supply voltage should be higher than 3.3 V. For every VBAT transition/re-insertion from 0 V,
VBAT slew rate < 25 mV/μs.

3.7.2. Voltage Stability Requirements

The power supply range of the BG950A-GL/BG951A-GL/BG953A-GL module is from 2.2 V to 4.35 V.
Make sure that the input voltage never drops below 2.2 V. The power supply range of the BG955A-GL
module is from 3.3 V to 4.3 V. Make sure that the input voltage never drops below 3.3 V.
Figure 9: Power Supply Limits During Burst Transmission
BG95xA-GL_Hardware_Design
Power supply for the module's
baseband part
Power supply for the module's RF part
Description
Power supply for the module's
baseband part
Power supply for the module's RF part
LPWA Module Series
2.2 3.3 4.35
2.2 3.3 4.35
- - -
Min. Typ. Max.
3.3 3.8 4.3
3.3 3.8 4.3
- - -
V
V
-
Unit
V
V
-
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