Product Info

LPWA Module Series
BG600L-M3 Hardware Design
BG600L-M3_Hardware_Design 35 / 83
The power on scenario is illustrated in the following figure.
Figure 8: Power-on Timing
1. Make sure that VBAT is stable before pulling down PWRKEY pin and keep the interval no less than
30 ms.
2. PWRKEY output voltage is 1.5 V because of the voltage drop inside the Qualcomm chipset. Due to
platform limitations, the chipset has integrated the reset function into PWRKEY. Therefore, PWRKEY
should never be pulled down to GND permanently.
2.6.2 Turn off Module
Either of the following methods can be used to turn off the module:
 Turn off the module with PWRKEY.
 Turn off the module with AT+QPOWD command.
NOTES