Table 5 – Turn On/Off Timing
AC Input AC Off AC On
T
vout_holdup
Vout
T
ac_on-delay Tpwok_low
Tsb_on-delay Tpwok_off Tpwok_off
PWOK T
pwok_on Tpwok_holdup Tsb_on-delay Tpwok_on
T
pson_pwok
+5VSB T
sb_vout Tsb_holdup
Min.>70mS
Tpson_on_delay
PSON#
AC turn 0n/off cycle PSON turn on/off cycle
Figure 2 : Turn On/Off Timing
stinU XAM NIM noitpircseD metI
Tsb_on-delay Delay from AC being applied to +5VSB being within
regulation.
1500 mS
Tac_on-delay Delay from AC being applied to all output voltages being
within regulation.
2500 mS
Tvout_holdup All main output voltage stay within regulation after loss of
AC
18 mS
Tpwok_holdup Delay from loss of AC deassertion of PWOK. 17 mS
Tpson_on_delay Delay from PSON# active to output voltage within
regulation limits.
5 400 mS
Tpson_pwok Delay from PSON# deactive to PWOK being deasserted. 50 mS
Tpwok_on Delay from output voltage within regulation limits to PWOK
asserted at turn on.
100 500 mS
Tpwok_off Delay from PWOK deasserted to output voltages (+5V,
+3.3V, +12V) dropping out of regulation limits.
1 mS
Tpwok_low Duration of PWOK being in the deasserted state during an
off/on cycle using AC or the PSON# signal. .
100 mS
Tsb_vout Delay from +5VSB being in regulation to O/Ps being in
regulation at AC turn on.
50 1000 mS
