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SSI
ERP2U Power Supply Design Guide, V1.0
- 23 -
Figure 3: Turn On/Off Timing
AC Input
Vout
PWOK
5VSB
PSON#
T
sb_on_delay
T
AC_on_delay
T
pwok_on
T
vout_holdup
T
pwok_holdup
T
pson_on_delay
T
sb_on_delay
T
pwok_on
T
pwok_off
T
pwok_off
T
pson_pwok
T
pwok_low
T
sb_vout
AC turn on/off cycle
PSON turn on/off cycle
Tsb_holdup