SIM8300G-M2 Hardware Design V1.01 Draft

SIM8300G-M2 Hardware Design V1.01
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Figure 6: Switching mode power supply reference circuit
1. In order to avoid damaging the module, please do not switch off the power supply when module
works normally. Only after the module is shut down by FULL_CARD_POWER_OFF# or AT command,
then the power supply can be cut off.
2. It is suggested that customer's design should have the ability to switch off the power supply for
module in abnormal state, and then switch on the power to restart the module.
3. The PWR_CTRL signal recommend connect to the host and can be controlled.
4. The power adapter use 12V 8A at least.
3.1.3 Voltage Monitor
To monitor the VBAT voltage, the AT command “AT+CBC” can be used.
For the details about voltage monitor commands, please refer to Document [1] in the appendix.
NOTE
NOTE