Turn On; Turn On With Pwrkey - Quectel RG520N-AT Hardware Design

3.5. Turn On

3.5.1. Turn On with PWRKEY

Table 9: Pin Definition of PWRKEY
Pin Name
PWRKEY
When the module is in power off mode, it can be turned on by driving PWRKEY low for at least 500 ms. It
is recommended to use an open-drain/open-collector driver to control PWRKEY. After STATUS pin
outputs a high level, PWRKEY can be released.
Figure 11: Reference Circuit of Turning on the Module with Driving Circuit
Another way to control PWRKEY is by using a button directly. When pressing the button, an electrostatic
strike may generate from finger. Therefore, a TVS component shall be placed near the button for ESD
protection.
Figure 12: Reference Circuit of Turning on the Module with a Button
RG520N-AT_Hardware_Design
Pin No. I/O
7 DI
S1
TVS
Close to S1
Description
Turns on/off the module
4.7K
47K
R1
1K
Turn-on pulse
5G Module Series
Comment
Internally pulled up to 1.8 V.
PWRKEY
M odul e
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