Technical Product Specification

Intel® Server Chassis SC5650 TPS Power Sub-system
Revision 1.2
Intel order number E39531-004
81
reach regulation within 50ms (T
vout_on
) of each other during turn on of the power supply. Each
output voltage shall fall out of regulation within 400msec (T
vout_off
) of each other during turn off.
The following table shows the timing requirements for the power supply being turned on and off
via the AC input, with PSON held low and the PSON signal, with the AC input applied.
Table 93. Output Voltage Timing
Item Description MIN MAX Units
T
vout_rise
Output voltage rise time from each main output. 5.0
1
70
1
msec
T
vout_on
All main outputs must be within regulation of each
other within this time.
50 msec
T
vout_off
All main outputs must leave regulation within this
time.
400 msec
1. The 5VSB output voltage rise time shall be from 1.0 ms to 25 ms.
Figure 19. Output Voltage Timing
Table 94. Turn On / Off Timing
Item Description Minimum Maximum 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.
21
ms
Vout
10%
Vout
T
vout rise
T
vout_on
T
vout_off
V1
V2
V3
V4