Quectel BG950A-GL, Руководство пользователя

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LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design 31 / 84
2. Ensure that VBAT remains stable for at least 100 ms before pulling down PWRKEY.
3.7. Power Supply
3.7.1. Power Supply Pins
The module provides two VBAT pins for connection with an external power supply.

One VBAT_RF pin for RF part.

One VBAT_BB pin for baseband part.
Table 8: Pin Definition of Power Supply

For every VBAT transition/re-insertion from 0 V, VBAT slew rate < 25 mV/μs. After the module starts up
normally, in order to ensure full-function mode, the minimum power supply voltage should be higher
than 2.2 V.
3.7.2. Voltage Stability Requirements
The power supply range of the module is from 2.2 V to 4.35 V. Make sure the input voltage will never drop
below 2.2 V.
Pin Name Pin No. Description Min. Typ. Max. Unit
VBAT_BB 32
Power supply for the module’s
baseband part
2.2 3.3 4.35 V
VBAT_RF 33 Power supply for the module’s RF part 2.2 3.3 4.35 V
GND
3, 31, 48, 50, 54, 55, 58, 59, 61, 62, 67–74, 79–82,
89–91, 100–102
- - - -
NOTE