Flight Mode Control; Other Interface; Sink Current Source - Sunsea AIoT SIMCom SIM7600NA User Manual

3.14 Flight Mode Control

The FLIGHTMODE pin can be used to control MODULE to enter or exit the Flight mode. In
Flight mode, the RF circuit is closed to prevent interference with other equipments and minimize
current consumption. Bidirectional ESD protection component is suggested to add on
FLIGHTMODE pin, its reference circuit is shown in the following figure.
Table 20: FLIGHTMODE pin status
FLIGHTMODE pin status
Input Low Level
Input High Level

3.15 Other interface

3.15.1 Sink Current Source

The ISINK pin is VBAT tolerant and intended to drive some passive devices, such as LCD
backlight and white LED, etc. Its output current can be up to 40mA and be set by the AT command
"AT+ CLEDITST".
Table 21: Sink current electronic characteristic
Symbol Description
V Voltage tolerant
ISINK
I Current tolerant
ISINK
SIM7600NA_user manual _V1.00
Figure 33: Flight mode switch reference circuit
Module operation
Flight Mode: RF is closed
AT+CFUN=0: RF is closed
AT+CFUN=1:RF is working
Min.
0.5
0
46
Smart Machine Smart Decision
Typ. Max.
- VBAT
- 40
2020-1-7
Unit
V
mA