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The turning-on scenario is illustrated in the following figure.
VBA T(Typ. 3.8 V)
PWRKEY
LDO15A_1V8
LDO17A_3V0
Others
NOTE
1. When the module is turned on for the first time, the turn-on timing may be different from that shown
above.
2. Make sure that VBAT is stable before pulling down PWRKEY. It is recommended to wait until VBAT is
stable at 3.8 V for at least 30 ms before pulling down PWRKEY. Additionally, do not keep pulling
PWRKEY down all the time.
SC200E_Series_Hardware_Design
Note2
132 ms
Software
controlled
Figure 8: Turn-on Timing
> 1.6 s
Software
controlled
47 s
Smart Module Series
Acti ve
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