Design and Environmental Specifications Intel® Server Boards S3200SH/S3210SH TPS
Revision 1.3
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8.2.2 Dynamic Loading
The output voltages shall remain within limits specified for the step loading and capacitive
loading specified in the table below. The load transient repetition rate shall be tested between
50Hz and 5kHz at duty cycles ranging from 10%-90%. The load transient repetition rate is only
a test specification. The Δ step load may occur anywhere within the MIN load to the MAX load
conditions.
Table 70. Transient Load Requirements
Output
Δ Step Load Size
(See note 2)
Load Slew Rate Test capacitive Load
+3.3V 5.0A
0.25 A/μsec 250 μF
+5V 6.0A
0.25 A/μsec 400 μF
12V 9.0A
0.25 A/μsec 500 μF
+5VSB 0.5A
0.25 A/μsec 20 μF
Notes:
1. Step loads on each 12V output may happen simultaneously.
2. For Load Range 2 (light system loading), the tested step load size should be 60% of those
listed.
8.2.3 AC Line Transient Specification
AC line transient conditions are defined as “sag” and “surge” conditions. “Sag” conditions are
also commonly referred to as “brownout”; these conditions are defined as the AC line voltage
dropping below nominal voltage conditions. “Surge” is defined to refer to conditions when the
AC line voltage rises above nominal voltage.
The power supply shall meet the requirements under the following AC line sag and surge
conditions.
Table 71. AC Line Sag Transient Performance
AC Line Sag
Duration Sag Operating AC Voltage Line
Frequency
Performance Criteria
Continuous 10% Nominal AC Voltage ranges 50/60Hz No loss of function or performance.
0 to 1 AC
cycle
95% Nominal AC Voltage ranges 50/60Hz No loss of function or performance.
> 1 AC cycle >30% Nominal AC Voltage ranges 50/60Hz Loss of function acceptable, self
recoverable.
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