Quectel BG95 - 4.4. Reset

LPWA Module Series
BG95&BG96 Compatible Design
BG95&BG96_Compatible_Design 27 / 47
VBAT
PWRKEY
T
2
T
1
RUNNING
Power-down procedure
OFF
Module
Status
STATUS
V
ILm ax
Figure 7: Power-off Scenarios by PWRKEY (BG95/BG96)
Table 8: Power-off Timing by PWRKEY (BG95/BG96)
Module
V
ILmax
T
1
T
2
BG96
≤0.5V
≥650ms
≥2s
BG95
≤0.45V
650ms~1.5s
≥1.3s
4.4. Reset
BG95 can be reset by driving RESET_N low for 2s to 3.8s. BG96 can be reset by driving RESET_N low
for 150ms to 460ms.
The recommended circuits for RESET_N control are shown below and they are similar to the PWRKEY
control circuit. An open drain/collector driver or button can be used to control the RESET_N pin.
Reset pulse
RESET_N
4.7K
47K
Figure 8: Reference Circuit of RESET_N by Using Driving Circuit (BG95/BG96)