Efficiency; Ac Input Voltage Specification; Ac Line Dropout / Holdup; Ac Line 5 Vsb Holdup - Intel SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory Manual

1BPower Sub-System
2.8.1

Efficiency

The following table provides the required minimum efficiency level at various loading conditions.
These are provided at three different load levels; 100%, 50% and 20%. Efficiency is tested over
an AC input voltage range of 115VAC to 220VAC.
Loading
Recommended Efficiency
2.8.2

AC Input Voltage Specification

The power supply must operate within all specified limits over the input voltage range shown in
the following table.
PARAMETER MIN
Line Voltage
90V
rms
(110)
Line Voltage
180V
(220)
Frequency 47 Hz
Notes:
1. Maximum input current at low input voltage range shall be measured at 90Vac, at max load.
2. Maximum input current at high input voltage range shall be measured at 180VAC, at max load.
3. This is not to be used for determining agency input current markings.
4. Maximum rated input current is measured at 100VAC and 200VAC.
Harmonic distortion of up to 10% of the rated AC input voltage must not cause the power supply
to go out of specified limits. The power supply shall power off at or below 75Vac ±5Vac. The
power supply shall start up at or above 85VAC ±4Vac. Application of an input voltage below
85VAC shall not cause damage to the power supply or blow a fuse.
2.8.3

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 of one cycle or less the power supply must
meet dynamic voltage regulation requirements over the rated load. If the AC dropout lasts
longer than one cycle the power supply should recover and meet all turn-on requirements. The
power supply must meet the AC dropout requirement over rated AC voltages, frequencies, and
output loading conditions. Any dropout of the AC line shall not cause damage to the power
supply.
20ms Min when tested under the following conditions: Max combined load = 525W,
12ms Min when tested under the following conditions: Max combined load = 750W
2.8.4

AC Line 5 VSB Holdup

The 5VSB output voltage should stay 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 ON or OFF
state (PSON asserted or de-asserted).
16

Table 8. Efficiency

100% of maximum
~80%

Table 9. AC Input Rating

RATED MAX
100-127 V 140V
rms
200-240 V 264V
rms rms
50/60Hz 63 Hz
Intel order number D31980-009
Intel® Server System SR2500AL
50% of maximum
~83%
Start-up Power
Vac Off
Vac
85Vac 75Vac
rms
±4Vac ±5Vac
- -
rms
20% of maximum
~78%
Max Rated
Max Input
Input AC
AC Current
Current
1,3 4
12 A 11.0A
rms rms
2,3 4
6.0 A 5.5A
rms rms
Revision – 1.6