Product Info

LPWA Module Series
BG95 Series Hardware Design
BG95_Series_Hardware_Design 41 / 106
PWRKEY
S1
Close to S1
TVS
Figure 7: Turn on the Module Using Keystroke
The power on scenario is illustrated in the following figure.
VIL ≤ 0.45 V
VBAT
PWRKEY
RESET_N
500–1000 ms
STATUS
(DO)
Inactive
Active
USB
NOTE
Inactive
Active
UART
≥ 2.1 s
≥ 2.55 s
≥ 2.5 s
VDD_EXT
About 30 ms
BOOT_CONFIG /
USB_BOOT pin
≥ 200 ms. After the time, the BOOT_CONFIG pins can
be set to high level through an external circuit.
Figure 8: Power-on Timing
1. Make sure that VBAT is stable before pulling down PWRKEY pin and keep the interval no less than
30 ms.
NOTES