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Power and Environmental Specifications
Item
T
Delay from AC being applied to 5VSB being within regulation.
sb_on_delay
T
Delay from AC being applied to all output voltages being within
ac_on_delay
regulation.
T
Time all output voltages stay within regulation after loss of AC.
vout_holdup
Measured at 60% of maximum load.
T
Delay from loss of AC to de-assertion of PWOK. Measured at
pwok_holdup
60% of maximum load.
T
Delay from PSON
pson_on_delay
limits.
T
Delay from PSON
pson_pwok
T
Delay from output voltages within regulation limits to PWOK
pwok_on
asserted at turn on.
T
Delay from PWOK de-asserted to output voltages (3.3V, 5V,
pwok_off
12V, -12V) dropping out of regulation limits.
T
Duration of PWOK being in the de-asserted state during an
pwok_low
off/on cycle using AC or the PSON signal.
T
Delay from 5VSB being in regulation to O/Ps being in
sb_vout
regulation at AC turn on.
T
Time the 5VSB output voltage stays within regulation after loss
5VSB_holdup
of AC.
AC Input
V out
T
AC_on_delay
T sb_on_delay
PWOK
5 VSB
PSON
AC turn on/off cycle
76
Table 42. Turn On/Off Timing
Description
#
active to output voltages within regulation
#
de-active to PWOK being de-asserted.
T pwok_on
T pwok_holdup
T 5VSB_holdup
T sb_vout
Figure 27. Turn On/Off Timing (Power Supply Signals)
Intel order number: D31979-010
®
Intel
Server Board S5000PAL / S5000XAL TPS
T
vout_holdup
T pwok_low
T pwok_off
T sb_on_delay
Revision 1.9
MIN
MAX
1500
2500
21
20
5
400
50
100
500
1
100
50
1000
70
T pwok_on
T pson_on_delay
PSON turn on/off cycle
UNITS
msec
msec
msec
msec
msec
msec
msec
msec
msec
msec
msec
T pwok_off
T pson_pwok
TP02314
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