Fast Shut Down By Hardware - Teli LE910C1-NA Design Manual

LE910Cx HW User Guide
Note: Refer to LE910Cx series AT command reference guide (Fast
power down - #FASTSHDN) in order to set up detailed AT command.
5.5.1.

Fast Shut Down by Hardware

The Fast Shut Down is triggered by a GPIO. Customers wishing to implement the Fast
Shut Down should configure a GPIO as the trigger pin for the Fast Shut Down through AT
command. The high-to-low transition of a GPIO triggers the Fast Shut Down and then the
LE910Cx module turns off within 30ms.
Below is the example hardware configuration for the Fast Shut Down.
Figure 12: Example for Fast Shut Down circuit
Note: Consider the voltage drop under max current conditions when
defining the voltage detector threshold in order to avoid unwanted
shutdown.
1VV0301298 Rev. 33 Page 48 of 128
Not Subject to NDA
2021-06-29