Technical Product Specification

Intel
®
Server Chassis H2000 Family TPS Power Sub-System
Revision 1.0 15
Intel order number: G59059-001
Table 14. Platinum Efficiency Requirement
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100% of maximum
50% of maximum
20% of maximum
10% of maximum
Minimum Efficiency
91%
94%
90%
82%
The power supply must pass with enough margins to make sure in production all power supplies
meet these efficiency requirements.
3.2.4 AC Line Fuse
The power supply shall have one line fused in the single line fuse on the line (Hot) wire of the
AC input. The line fusing shall be acceptable for all safety agency requirements. The input fuse
shall be a slow blow type. AC inrush current shall not cause the AC line fuse to blow under any
conditions. All protection circuits in the power supply shall not cause the AC fuse to blow unless
a component in the power supply has failed. This includes DC output load short conditions.
3.2.5 AC Line Inrush
AC line inrush current shall not exceed 65A peak, for up to one-quarter of the AC cycle, after
which, the input current should be no more than the specified maximum input current. The peak
inrush current shall be less than the ratings of its critical components (including input fuse, bulk
rectifiers, and surge limiting device).
The power supply must meet the inrush requirements for any rated AC voltage, during turn on at
any phase of AC voltage, during a single cycle AC dropout condition as well as upon recovery
after AC dropout of any duration, and over the specified temperature range (T
op
).
3.2.6 AC Line Dropout/Holdup
An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC
line for any length of time. During an AC dropout the power supply must meet dynamic voltage
regulation requirements. An AC line dropout of any duration shall not cause tripping of control
signals or protection circuits. If the AC dropout lasts longer than the holdup time the power
supply should recover and meet all turn on requirements. The power supply shall meet the AC
dropout requirement over rated AC voltages and frequencies. A dropout of the AC line for any
duration shall not cause damage to the power supply.
Table 15. AC Power Holdup Reuqirement
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Holdup time
70%
10.6msec
The 12V
STB
output voltage should stay in regulation under its full load (static or dynamic) during
an AC dropout of 70ms min (=12VSB holdup time) whether the power supply is in ON or OFF
state (PSON asserted or de-asserted).
3.2.7 AC Line Fast Transient (EFT) Specification
The power supply shall meet the EN61000-4-5 directive and any additional requirements in
IEC1000-4-5: 1995 and the Level 3 requirements for surge-withstand capability, with the
following conditions and exceptions: