Intel EPS1U Benutzerhandbuch
SSI
EPS1U Power Supply Design Guide, V1.1
Table 16: Turn On/Off Timing
Item
Description
MIN
MAX
Units
Tsb_on_delay
Delay from AC being applied to 5 VSB being
within regulation.
within regulation.
1500
ms
T ac_on_delay
Delay from AC being applied to all output
voltages being within regulation.
voltages being within regulation.
2500
ms
Tvout_holdup
Time all output voltages stay within regulation
after loss of AC.
after loss of AC.
18
ms
Tpwok_holdup
Delay from loss of AC to deassertion of PWOK
17
ms
Tpson_on_delay
Delay from PSON# active to output voltages
within regulation limits.
within regulation limits.
5
400
ms
T pson_pwok
Delay from PSON# deactive to PWOK being
deasserted.
deasserted.
50
ms
Tpwok_on
Delay from output voltages within regulation
limits to PWOK asserted at turn on.
limits to PWOK asserted at turn on.
100
1000
ms
T pwok_off
Delay from PWOK deasserted to output
voltages (3.3 V, 5 V, 12 V, -12 V) dropping out
of regulation limits.
voltages (3.3 V, 5 V, 12 V, -12 V) 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.
during an off/on cycle using AC or the PSON#
signal.
100
ms
Tsb_vout
Delay from 5 VSB being in regulation to O/Ps
being in regulation at AC turn on.
being in regulation at AC turn on.
50
1000
ms
STATUS
Recommended
Item
Description
MIN
MAX
UNITS
T
vout_holdup
Time all output voltages stay within regulation
after loss of AC.
after loss of AC.
21
ms
T
pwok_holdup
Delay from loss of AC to deassertion of PWOK.
20
ms
T
sb_holdup
Time 5VSB output voltage stays within regulation
after loss of AC.
after loss of AC.
70
ms