Hello, I have two questions regarding consequences of abrupt loss of supply power to the BG95-M1. The document Quectel_BG95_Series_Hardware_Design_V1.6.pdf describes in section 3.6.2.2 "To avoid corrupting the data in the internal flash, do not switch off the power supply when the module is working. Only after the module is shut down with PWRKEY, fast shutdown function or AT command can the power supply be cut off."... And, in section 3.6.3, "The module supports fast shutdown function through GPIO1 (pin 25). When the pin detects a falling edge, the module powers off within 100 ms without damaging the file system, but the writing data may be lost."
Designing in a supercapacitor based power backup to provide 100 ms of shutdown time is cost prohibitive for our product. How critical is it to provide this protection time? In other words, can you please quantify the likelihood that I would "brick" the BG95-M1 by exposing it to abrupt power loss without additional shutdown time? In my product, loss of some data with abrupt power loss is acceptable, but of course "bricking" the BG95-M1 would not be an acceptable result of abrupt power supply loss. This application is automotive based, and I have no control over customer abruptly disconnecting power to the BG95-M1.
Do all of your other customers that include the BG95-M1 in their products and are exposed to abrupt power loss design 100 ms of shutdown time into their products? Or, do at least some of your other customers forego the cost of providing shutdown time protection?
Thank you.