Intel®
Server
System SR1625UR TPS
Power Subsystem
Revision 1.5
Intel order number E47487-007
23
The power supply must meet the AC inrush current 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
, (includes hot and cold inrush). It is acceptable that AC line inrush current may reach up to
60 A peak for up to 1 msec.
3.6.7
AC Line 5 VSB Holdup
The 5 VSB output voltage stays in regulation under its full load (static or dynamic) during an AC
dropout of 70 ms minimum (=5 VSB holdup time) regardless of whether the power supply is in
ON or OFF state (PSON asserted or de-asserted).
3.6.8
AC Line Leakage Current
The maximum leakage current to ground for each power supply is not more than 3.5 mA when
tested at 240 VAC.
3.6.9
Power Factor Correction
The power supply incorporates a Power Factor Correction circuit.
The power supply is tested as described in
EN 61000-3-2: Electromagnetic Compatibility (EMC)
Part 3: Limits - Section 2: Limits for harmonic current emissions
, and meets the harmonic
current emissions limits specified for ITE equipment.
The power supply is tested as described in
JEIDA MITI Guideline for Suppression of High
Harmonics in Appliances and General-Use Equipment
and meets the harmonic current
emissions limits specified for ITE equipment.
3.7
DC Output Specification
3.7.1
Output Power/Currents
The following table defines the power requirements for the power supply module.
Table 15. Power Supply Module Load Ratings
650 W
Voltage
Minimum
Maximum
Peak
+12 V
0 A
54 A
61 A
4
+5 VSB
1,2
0.1 A
3.0 A
3.5 A
Vbias
3
0 A
See note 3
---
Notes:
1. The two 40-mm fans are powered from 5 VSB when in standby mode.
2. +5 VSB provides power to the two 40-mm fans cooling the power supplies in standby mode. 1 A of 5 VSB is
reserved for powering the fan in standby mode.
3. Vbias maximum load is based on PDB circuits. This output is optional depending on whether the PDB
requires a higher voltage to power its 240 VA circuits.
4. Peak current time duration does not exceed 12 sec.
