Product Info

Smart Module Series
SC600Y&SC600T Hardware Design
SC600Y&SC600T_Hardware_Design 40 / 134
Another way to control the PWRKEY is using a button directly. A TVS component is indispensable to be
placed nearby the button for ESD protection. A reference circuit is shown in the following figure.
Figure 7: Turn on the Module Using Keystroke
The timing of turning on is illustrated in the following figure.
VBAT(Typ.:3.8V)
PWRKEY
>1.6s
Others
LDO5_1P8
38s
LDO6_1P8
61.2m s
Software
controlled
LDO17_2P85
Active
LDO10_2P8
Note2
Software
controlled
Figure 8: Timing of Turning on Module