Technical Product Specification

Intel® Server Board S2600IP and Intel® Workstation Board W2600CR TPS Appendix A: Integration and Usage Tips
Revision 1.4 Intel order number G34153-004 121
Table 71. Turn On/Off Timing
Item
Description
MIN
MAX
UNITS
T
sb_on_delay
Delay from AC being applied to 5VSB being within
regulation.
1500
ms
T
ac_on_delay
Delay from AC being applied to all output voltages
being within regulation.
2500
ms
T
vout_holdup
Time all output voltages stay within regulation
after loss of AC. Tested at 75% of maximum load.
13
ms
T
pwok_holdup
Delay from loss of AC to de-assertion of PWOK.
Tested at 75% of maximum load.
12
ms
T
pson_on_delay
Delay from PSON
#
active to output voltages within
regulation limits.
5
400
ms
T
pson_pwok
Delay from PSON
#
deactivate to PWOK being de-
asserted.
50
ms
T
pwok_on
Delay from output voltages within regulation limits
to PWOK asserted at turn on.
100
500
ms
T
pwok_off
Delay from PWOK de-asserted to output voltages
(3.3V, 5V, 12V, -12V) dropping out of regulation
limits.
1
ms
T
pwok_low
Duration of PWOK being in the de-asserted state
during an off/on cycle using AC or the PSON
signal.
100
ms
T
sb_vout
Delay from 5VSB being in regulation to O/Ps
being in regulation at AC turn on.
10
1000
ms
T
5VSB_holdup
Time the 5VSB output voltage stays within
regulation after loss of AC.
70
ms
Figure 37. Turn On/Off Timing (Power Supply Signals)
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
T
5VSB_holdup