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manual
ways:
1. Pull the PWRKEY pin into high;
2. Waiting for timer (T3412) overflow, the module will wake up automatically.
2.6 Power Supply
Power Supply Interface
2.6.1
F-B200GL has two VBAT pins for external power supply.
Form 2-4 VBAT And Relevant Ground Pins
Pad #
Pad Name
13, 14
VBAT
7,15,16,24,27,
GND
29,31,41,47~58
Power Supply Reference Design
2.6.2
F-B200GL power supply range is 3.4-4.2V, need to ensure input voltage not less
than 3.4V. To reduce voltage dropping, it is recommended to place a low ESR 100uF
filter capacitor and three ceramic capacitors (100nF, 33pF and 10pF) near the VBAT
pin. When the module connection external power supply, the line width of VBAT
should not be less than 2mm. In general, when route VBAT, the line should be the
longer, the wider.
In additional, it is recommended to add a 5.1V, more than 0.5W Zener diode at the
front of the power supply for keeping the power supply stable. The reference design of
the power supply circuit is as follows:
Figure 2-2 Power Supply Reference Design
Add: Floor 11, Area A06, No 370, chengyi street, Jimei, Xiamen. China
http://en.four-faith.com
F-B200GL NB-IoT module hardware design
I/O
Description
power supply for
PI
RF module
Ground
Tel: +86 592-5907276
DC
Remark
characteristic
Vmax = 4.2V
Vmin = 3.4V
Vnorm =3.8V
Fax: +86 592-5912735
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