Intel SC5299WS User Manual
Intel
®
Entry Server Chassis SC5299-E TPS
Power Sub-system
Revision 3.1
Intel order number D37594-005
55
2.3.3.13
Timing Requirements
The timing requirements for power supply operation are as follows. The output voltages must
rise from 10% to within regulation limits (T
rise from 10% to within regulation limits (T
vout_rise
) within 5 to 70 ms, except for 5VSB, which is
allowed to rise from 1.0 to 25 ms. All outputs rise monotonically. The following figure 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.
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 63. Output Voltage Timing
Item
Description
Minimum
Maximum
Units
T
vout_rise
Output voltage rise time from each main output.
5.0*
70*
msec
T
vout_on
All main outputs must be within regulation of each
other within this time.
other within this time.
50
msec
T
vout_off
All main outputs must leave regulation within this
time.
time.
400
msec
* The 5VSB output voltage rise time shall be from 1.0 ms to 25.0 ms.
TP02313
V out
V1
V2
V3
V4
Tvout_on
Tvout_rise
10% V out
Tvout_off
Figure 13. Output Voltage Timing