Turn Off Module - Quectel Smart Wi-Fi Module Series User Manual

The turn on scenario is illustrated in the following figure.
VBAT
PWRKEY
LDO5_1V8
LDO6_1V8
LDO17_2V85
Others
NOTE:
Make sure that VBAT is stable before pulling down PWRKEY pin. The recommended time between them
is no less than 30ms. PWRKEY pin cannot be pulled down all the time.
3.4.2.

Turn off Module

Set the PWRKEY pin low for at least 1s, and then choose to turn off the module when the prompt window
comes up.
The other way to turn off the module is to drive PWRKEY to a low level for at least 8s. The module will
execute forced shutdown. The forced power-down scenario is illustrated in the following figure.
VBAT
PWRKEY
Others
SC20-W_Manual_R1.0
1
>1.6s
173ms
173.5ms
438ms
Figure 5: Timing of Turning on Module
>8s
Confidential / Released
30s
Power down
Active
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