Intel SC5299BRP Technical Product Specification page 65

Power Sub-system
2.3.2.8.1 AC Line 5VSB Holdup
The 5VSB output voltage stays in regulation under its full load (static or dynamic) during an AC
dropout of 70ms min (=5VSB holdup time) whether the power supply is in an ON or OFF state
(PSON asserted or de-asserted).
2.3.2.9 AC Line Fast Transient (EFT) Specification
The power supply meets 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:
These input transients do not cause any out-of-regulation conditions, such as overshoot
and undershoot, nor do they cause any nuisance trips of any of the power supply
protection circuits.
The surge-withstand test must not produce damage to the power supply.
The supply meets surge-withstand conditions under maximum and minimum DC-output
load conditions.
2.3.2.10 Power Recovery
The power supply recovers automatically after an AC power failure. AC power failure is defined
to be any loss of AC power that exceeds the dropout criteria.
2.3.2.10.1 Voltage Brownout
The power supply complies with the limits defined in EN55024: 1998 using the IEC 61000-4-
11:1995 test standard and performance criteria C defined in Annex B of CISPR 24.
In addition, the power supply meets the following Intel Requirement:
o A continuous input voltage below the nominal input range shall not damage the
power supply or cause overstress to any power supply component. The power
supply must be able to return to normal power up state after a brownout condition.
Maximum input current under a continuous brownout shall not blow the fuse. The
power supply should tolerate a 3min ramp from 90VAC voltage to 0VAC after the
components have reached a steady state condition.
2.3.2.10.2 Voltage Interruptions
The power supply complies with the limits defined in EN55024: 1998 using the IEC 61000-4-
11:1995 test standard and performance criteria C defined in Annex B of CISPR 24.
2.3.2.11 AC Line Isolation Requirements
The power supply meets all safety agency requirements for dielectric strength. Transformers'
isolation between primary and secondary windings complies with the 3000Vac (4242Vdc)
dielectric strength criteria. If the working voltage between primary and secondary dictates a
higher dielectric strength test voltage, the highest test voltage is used. In addition, the insulation
system complies with reinforced insulation per safety standard IEC 950. Separation between the
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Intel order number D37594-005
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Intel Entry Server Chassis SC5299-E TPS
Revision 3.1