Intel S3210SHLX Product Specification - Page 110

Intel® Server Boards S3200SH/S3210SH TPS Design and Environmental Specifications 8.2 Power Supply Specifications This section provides power supply design guidelines for the server board, including voltage and current specifications, and power supply on/off sequencing characteristics. Parameter + 3.3V + 5V + 12V - 12V + 5VSB Table 67. Server Board Power Supply Voltage Specification Tolerance - 5% / +5% - 5% / +5% - 5% / +5% - 10% / +10% - 5% / +5% Min +3.14 +4.75 +11.40 -11.40 +4.75 Nom +3.30 +5.00 +12.00 -12.00 +5.00 Max +3.46 +5.25 +12.60 -13.08 +5.25 Units Vrms Vrms Vrms Vrms Vrms 8.2.1 Power Timing Requirements These 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 70ms, except for 5VSB - it is allowed to rise from 1.0 to 70ms. The +3.3V, +5V and +12V output voltages should start to rise approximately at the same time. All outputs must rise monotonically. The +5V output needs to be greater than the +3.3V output during any point of the voltage rise. The +5V output must never be greater than the +3.3V output by more than 2.25V. Each output voltage shall reach regulation within 50ms (Tvout_on) of each other during turn on of the power supply. Each output voltage shall fall out of regulation within 400msec (Tvout_off) of each other during turn off. Refer to the table below for 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. Item Tvout_rise Tvout_on T vout_off Table 68. Output Voltage Timing Description Output voltage rise time from each main output. All main outputs must be within regulation of each other within this time. All main outputs must leave regulation within this time. MIN 5.0 * MAX 70 * 50 400 UNITS msec msec msec 96 Revision 1.3