APBDG0L031K0FA
19/35
apbdg0l031k0fa_g_en_101
The incorrect unit shut down occurs always when SB signal is deactivated
within the time shorter than
ton
since computer is started (see the figure below).
Vcc
SB
HW state
ton
toff2
t
SW state
Fig. 10 - Incorrect shut down
Signal SB can be connected directly with device Vcc terminal.
In this case
operating system must be designed so that instant shutting down could
not cause damage the data.
+U
GND
Vcc
PE
GND
SB
SW
Fig. 11 - Incorrect shut down
