Design and Environmental Specifications | Intel® Server Boards S5000PSL and S5000XSL TPS |
8.3.6Capacitive Loading
The power supply shall be stable and meet all requirements with the following capacitive loading ranges.
Table 42. Capacitive Loading Conditions
Output | Minimum | Maximum | Units |
+3.3 V | 250 | 6800 | μF |
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+5 V | 400 | 4700 | μF |
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+12 V 1, 2, 3, 4 | 500 each | 11,000 | μF |
1 | 350 | μF | |
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+5 VSB | 20 | 350 | μF |
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1.Maximum continuous total output power should not exceed 670 W.
2.Maximum continuous load on the combined 12 V output shall not exceed 48 A.
3.Peak load on the combined 12 V output shall not exceed 52 A.
4.Peak total DC output power should not exceed 730 W.
8.3.7Ripple / Noise
The maximum allowed ripple/noise output of the power supply is defined in the following table. This is measured over a bandwidth of 0Hz to 20MHz at the power supply output connectors. A 10 μF tantalum capacitor in parallel with a 0.1 μF ceramic capacitor are placed at the point of measurement.
Table 43. Ripple and Noise
+3.3 V | +5 V | +12 V 1, 2, 3, 4 | +5 VSB | |
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1.Maximum continuous total output power should not exceed 670 W.
2.Maximum continuous load on the combined 12 V output shall not exceed 48 A.
3.Peak load on the combined 12 V output shall not exceed 52 A.
4.Peak total DC output power should not exceed 730 W.
8.3.8Timing Requirements
The following are the timing requirements for the power supply operation. The output voltages
must rise from 10% to within regulation limits (Tvout_rise) within 5 to 70 ms. 5 VSB is allowed to rise from 1.0 to 25 ms. All outputs must rise monotonically. Each output voltage shall reach
regulation within 50 ms (Tvout_on) of each other during turn on of the power supply. Each output voltage shall fall out of regulation within 400 msec (Tvout_off) of each other during turn off.
The following tables and diagrams show 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.
84 | Revision 1.2 |
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