Intel S1200RP Technical Product Specification - Page 223
shows the timing requirements for the power supply being turned on and off from the AC input
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Intel® Server Board S1200V3RP Server Board Power Distribution shows the timing requirements for the power supply being turned on and off from the AC input, with PSON held low and the PSON signal, with the AC input applied. Table 69. Output Voltage Timing Item Tvout_rise Tvout_on Tvout_off Description Output voltage rise time from each main output. MIN 2 Output rise time for the 5Vstby output. 1 All main outputs must be within regulation of each other within this time. All main outputs must leave regulation within this time. MAX 50 25 50 400 UNITS ms ms ms ms Item Tsb_on_delay T ac_on_delay Tvout_holdup Tpwok_holdup Tpson_on_delay Figure 51. Output Voltage Timing Table 70. Turn On/Off Timing Description Delay from AC being applied to 5VSB being within regulation. Delay from AC being applied to all output voltages being within regulation. Time all output voltages stay within regulation after loss of AC. Tested at 75% of maximum load. Delay from loss of AC to de-assertion of PWOK. Tested at 75% of maximum load. Delay from PSON# active to output voltages within regulation limits. Min. 13 12 5 Max. 1500 2500 400 Units ms ms ms ms ms Revision 1.0 211