Intel SC5650BCDP User Manual
Power Sub-System
Intel
®
Server System SC5650BCDP TPS
Intel order number: E80367-002
Revision 1.5
20
3.1.4.8
AC Line Fast Transient (EFT) Specification
The power supply meets the EN 61000-4-5 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:
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.
protection circuits.
• The surge-withstand test does not produce damage to the power supply.
• The power supply meets surge-withstand test conditions under maximum and minimum
DC-output load conditions.
3.1.4.9
AC Line Leakage Current
The maximum leakage current to ground for each power supply is 3.5mA when tested at
240VAC.
240VAC.
3.1.5
DC Output Specifications
3.1.5.1
Grounding
The ground of the pins of the power supply output connector provides the power return path.
The output connector ground pins are connected to safety ground (power supply enclosure).
The output connector ground pins are connected to safety ground (power supply enclosure).
3.1.5.2
Standby Output
The 5VSB output is present when an AC input greater than the power supply turn-on voltage is
applied.
applied.
3.1.5.3
Fan-less Operation
Fan-less operation is the power supply’s ability to work indefinitely in standby mode with power
on, power supply off, and the 5VSB at full load (=2A) under environmental conditions
(temperature, humidity, altitude). In this mode, the components’ maximum temperature should
follow the same guidelines.
on, power supply off, and the 5VSB at full load (=2A) under environmental conditions
(temperature, humidity, altitude). In this mode, the components’ maximum temperature should
follow the same guidelines.
3.1.5.4
Remote Sense
The power supply has remote sense return (ReturnS) to regulate out ground drops for all output
voltages; +3.3V, +5V, +12V1, +12V2, +12V3, +12V4, -12V, and 5VSB. The power supply uses
remote sense to regulate out drops in the system for the +3.3V, +5V and +12V1 output. The
+5V, +12V1, +12V2, +12V3, +12V4, –12V and 5VSB outputs only use remote sense referenced
to the ReturnS signal. The remote sense input impedance to the power supply is greater than
200
voltages; +3.3V, +5V, +12V1, +12V2, +12V3, +12V4, -12V, and 5VSB. The power supply uses
remote sense to regulate out drops in the system for the +3.3V, +5V and +12V1 output. The
+5V, +12V1, +12V2, +12V3, +12V4, –12V and 5VSB outputs only use remote sense referenced
to the ReturnS signal. The remote sense input impedance to the power supply is greater than
200
Ω. This is the value of the resistor connecting the remote sense to the output voltage
internal to the power supply. Remote sense is able to regulate out a minimum of 200mV drop.