Power Subsystem
Intel®
Server
System SR1625UR TPS
22
Revision 1.5
Intel order number E47487-007
3.6.4
AC Input Voltage Specification
The power supply must operate within all specified limits over the input voltage range shown in
the following table:
Table 14. AC Input Rating
Parameter
Minimum
Rated
Maximum
Startup
VAC
Power-off
VAC
Maximum
Input AC
Current
Maximum Rated
Input AC Current
Line Voltage
(110)
90 V
rms
100-127 V
rms
140 V
rms
85 VAC
±4 VAC
75 VAC ±
5 VAC
8.5 A
rms
1,3
7.6 A
rms
4
Line Voltage
(220)
180 V
rms
200-240 V
rms
264 V
rms
-
-
4.2 A
rms
2,3
3.8 A
rms
4
Frequency
47 Hz
50/60 Hz
63 Hz
Notes:
1. Maximum input current at low input voltage range is measured at 90 VAC, at maximum load.
2. Maximum input current at high input voltage range is measured at 180 VAC, at maximum load.
3. This is not to be used for determining agency input current markings.
4. Maximum rated input current is measured at 100 VAC and 200 VAC.
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 powers off on or after/below 75 VAC ± 5
VAC range. The power supply starts up on or before/above 85 VAC ± 4 VAC. Application of an
input voltage below 85 VAC does not cause damage to the power supply or blow a fuse.
3.6.5
AC Line Dropout/Holdup
An AC line dropout is defined to be when the AC input drops to 0 VAC 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. An AC line dropout of one
cycle or less (20 ms minimum) does not cause any tripping of control signals or protection
circuits (= 20 ms holdup time requirement). 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 does not cause damage to the power supply.
The minimum holdup time requirement is as follows:
20 ms minimum when tested under the following conditions: Maximum combined load =
360 W (55%)
12 ms minimum when tested under the following conditions: Maximum combined load =
600 W (92%)
3.6.6
AC Inrush
The peak AC inrush current is less than 40 A peak for one-quarter of the AC cycle and less
than the ratings of power supply’s critical AC input components, including input fuse, bulk caps,
rectifiers, and surge limiting device.
