Monitor The Power Supply; Turn On And Off Scenarios; Turn On Module Using The Pwrkey - Quectel BG96-NA Hardware Design

3.6.3. Monitor the Power Supply

AT+CBC command can be usedto monitor the VBAT_BB voltage value. For more details, please refer to
document [2].

3.7. Turn on and off Scenarios

3.7.1. Turn on Module Using the PWRKEY

The following table shows the pin definition of PWRKEY.
Table 7: PWRKEY Pin Description
Pin Name Pin No.
PWRKEY 15
When BG96-NA is in power down mode, it can be turned on to normal mode by driving the PWRKEY pin
to a low level for at least 100ms. It is recommended to use an open drain/collector driver to control the
PWRKEY.After STATUS pin outputting a high level, PWRKEY pin can be released. A simple reference
circuit is illustrated in the following figure.
The other way to control the PWRKEY is using a button directly. When pressing the key, electrostatic
strike may generate from finger. Therefore, aTVS component is indispensable to be placed nearby the
button for ESD protection. A reference circuit is shownin the following figure.
BG96-NA_Hardware_Design
Description
Turn on/off the module
Figure 8: Turn on the Module Using Driving Circuit
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BG96-NA Hardware Design
DC Characteristics
V max=2.1V
IH
V min=1.3V
IH
V max=0.5V
IL
LTE Module Series
Comment
The output voltage is0.8V
because of thediode drop
in theQualcomm chipset.