Technical Product Specification

Power Subsystem Intel® Server System R2000IP Product Family TPS
26 Revision 1.1
In general, a failed (off by internal latch or external control) supply may be removed, then
replaced with a good power supply, however, hot swap needs to work with operational as well
as failed power supplies. The newly inserted power supply will get turned on into standby or
Power On mode once inserted.
3.6.16 Timing Requirements
These are the timing requirements for the power supply operation. The 12V must rise from 10%
to within regulation limits (T
vout_rise
) within 5 to 70ms, 5Vsb - within 1.0 to 25ms. Both outputs
must rise monotonically.
Table 21. Turn On/Off Timings
Item
Description
MIN
MAX
Unit
T
sb_on_delay
Delay from AC being applied to 5VSB being within regulation.
1500
ms
T
5Vsb_rise
5Vsb Output voltage rise time
1.0
25
ms
T
vout_rise
DC Output voltage rise time
5.0
70
ms
T
ac_on_delay
Delay from AC being applied to DC output voltage being within
regulation.
2500
ms
T
vout_holdup
Time DC output voltage stay within regulation after loss of AC
(See Section 6.8).
13
ms
T
pwok_holdup
Delay from loss of AC to de-assertion of PWOK (See Section
6.8)
12
ms
T
pson_on_delay
Delay from PSON
#
active to DC output voltage within
regulation limits.
5
400
ms
T
pson_pwok
Delay from PSON
#
de-active to PWOK being de-asserted.
50
ms
T
pwok_on
Delay from DC output voltage within regulation limits to PWOK
asserted at turn on.
100
500
ms
T
pwok_off
Delay from PWOK de-asserted to DC output voltage 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 DC output voltage
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
T
PSKil
Delay from PSKILL= High to power supply turned off
100
s
Notes:
1. Must be tested at 1 full cycle dropout.
2. PSKill signal timing requirements may not be applicable as the PS module latch release requires removal of
AC connector plug.