Quectel LTE-A Series Hardware Design page 36

Another way to control the PWRKEY pin is by using a button. To protect your finger from electronic strikes
when you press the key, a TVS component placed near the button for ESD protection is indispensable. A
reference design is given below.
The timing of turning on is illustrated in the following figure.
VBAT
PWRKEY
RESET_N
STATUS
UART
USB
NOTE
Please make sure that VBAT is stable for no less than 300 ms before pulling down the PWRKEY pin.
EG060V-EA_Hardware_Design
S1
TVS
Close to S1
Figure 12: Turn on the Module with Button
NOTE
≥ 550 ms
≤ 1.2 V
V
IL
≥ 21 s
≥ 26.6 s
Inactive
Inactive
Figure 13: Timing of Turning on the Module
EG060V-EA Hardware Design
PWRKEY
≥ 2.4 V
V
IH
≥ 14 s
LTE-A Module Series
Active
Active
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