Turn On And Off Scenarios; Turn On - Quectel NB-IoT Module Series Hardware Design

3.7. Turn on and off Scenarios

3.7.1. Turn on

BC66 can be turned on by driving the PWRKEY pin to a low level for a certain time.
Table 7: PWRKEY Pin
Pin Name Pin No.
PWRKEY 7
It is recommended use an open drain/collector driver to control the PWRKEY. A simple reference circuit is
illustrated in the following figure.
BC66_Hardware_Design
VBAT
+
C1
D1
TVS
100uF
GND
Figure 4: Reference Circuit for Power Supply
Description
Pull down PWRKEY to turn
on the module
4.7K
Turn on pulse
Figure 5: Turn on the Module Using Driving Circuit
Module
VBAT_RF
VBAT_BB
C3 C4
C2
100nF 100pF 22pF
0402 0402
GND
PWRKEY Pull-down Time
TBD
PWRKEY
47K
NB-IoT Module Series
BC66 Hardware Design
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