Figure 27. Turn On/Off Timing (Power Supply Signals); Table 43. Turn On/Off Timing - Intel S5000XAL Technical Product Specification

®
Intel Server Board S5000PAL / S5000XAL TPS
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
Revision 1.4

Table 43. Turn On/Off Timing

Description
#
active to output voltages within regulation
#
de-active to PWOK being de-asserted.
T
vout_holdup
T pwok_on
T pwok_holdup
T 5VSB_holdup
T sb_vout

Figure 27. Turn On/Off Timing (Power Supply Signals)

Intel order number: D31979-007
Power and Environmental Specifications
T pwok_low
T pwok_off T sb_on_delay
T pson_on_delay
PSON turn on/off cycle
MIN MAX UNITS
1500 msec
msec
2500
msec
21
msec
20
msec
5 400
50 msec
msec
100 500
msec
1
msec
100
msec
50 1000
msec
70
T pwok_off
T pwok_on
T pson_pwok
TP02314
77