LPM2100 bg NB Module Hardware Usage Guide
Shanghai Yuge Information Technology Co., Ltd.
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When the module is powered on, the VBAT pin stops the power supply module and shuts
down.
Figure 3-5 Shutdown timing diagram
Table 3-4 Shutdown timing parameters
Symbol
Description
Min
Typical
Max unit
Toff
TBD
-
s
Toff(status) Shutdown time (according to status status)
TBD
-
s
Toff(uart)
Shutdown time (according to uart status)
TBD
-
s
3.4.3 Reset
The PIN15 signal of the LPM2100 bg series module is the RESET reset pin. The
application detects that the module is abnormal. When the software does not respond, the
module can be reset. Pull the pin low for 100-450ms to reset the module. The RESET pin is
sensitive to interference. A 10 nF to 0.1
μ
F capacitor can be placed near the signal for signal
filtering. Keep away from RF interference signals when routing.
Figure 3-6 Reset reference circuit
Table 3-5 RESET pin parameters
