Technical Product Specification

Appendix A: Integration and Usage Tips Intel® Server Board S2600IP and Intel® Workstation Board W2600CR TPS
120 Intel order number G34153-004 Revision 1.4
9.4.14 Timing Requirements
These are the timing requirements for the power supply operation. The output voltages must
rise from 10% to within regulation limits (T
vout_rise
) within 2 to 50ms, except for 5VSB - it is
allowed to rise from 1 to 25ms. The +3.3V, +5V and +12V1, +12V2, +12V3 output voltages
should start to rise approximately at the same time. All outputs must rise monotonically.
Each output voltage shall 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 400ms (T
vout_off
) of each
other during turn off. Table 70 shows the timing requirements for the power supply being turned
on and off by the AC input, with PSON held low and the PSON signal, with the AC input applied.
All timing requirements must be met for the cross loading condition in section TBD.
Table 70. Output Voltage Timing
Item
Description
Min
Max
Units
T
vout_rise
Output voltage rise time from each main output.
2
50
ms
Output rise time for the 5Vstby output.
1
25
ms
T
vout_on
All main outputs must be within regulation of
each other within this time.
50
ms
T
vout_off
All main outputs must leave regulation within
this time.
400
ms
Figure 36. Output Voltage Timing