Technical Product Specification

Intel
®
Server Board S2600WP TPS Power Supply Specification Guidelines
from 1.0 to 25ms. All outputs must rise monotonically. The following table shows the timing
requirements for the power supply being turned on and off through the AC input, with PSON
held low and the PSON signal, with the AC input applied.
Table 97. Timing Requirements
Item
Description
Min
Max
Units
T
vout_rise
Output voltage rise time
5.0 *
70 *
ms
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.
3000 ms
T
vout_holdup
Time 12Vl output voltage stay within regulation
after loss of AC.
13 ms
T
pwok_holdup
Delay from loss of AC to de-assertion of PWOK.
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.
5
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
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.
50
1000
ms
T
5VSB_holdup
Time the 5VSB output voltage stays within
regulation after loss of AC.
70
ms
* The 5VSB output voltage rise time shall be from 1.0ms to 25ms.
Figure 59. Turn On/Off Timing (Power Supply Signals)
AC Input
Vout
PWOK
12Vsb
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
Revision 1.6 Intel order number G44057-007
173