1BPower Sub-System
Intel® Server System SR2500AL
Revision – 1.6
Intel order number D31980-009
18
Table 11. Over-Voltage Protection (OVP) Limits
Output Voltage
OVP MIN (V)
OVP MAX (V)
+3.3V 3.9 4.5
+5V 5.7
6.5
+5VSB 5.7 6.5
-12V -13.3
-14.5
+12V1/2/3/4 13.0
14.5
2.9.3
Over-Temperature Protection (OTP)
The power supply will be protected against over-temperature conditions caused by loss of fan
cooling or excessive ambient temperature. In an OTP condition the power supply will shutdown.
When the power supply temperature drops to within specified limits, the power supply shall
restore power automatically, while the 5 Vsb remains constantly on. The OTP trip level shall
have a minimum of 4
°
C of ambient temperature hysteresis, so that the power supply will not
oscillate on and off due to a temperature recovery condition. The power supply shall alert the
system of the OTP condition via the power supply FAIL signal and the PWR LED.
2.10 DC Output Specification
2.10.1
Output Power / Currents
The following table defines power and current ratings for this
750W
continuous (860W pk)
power supply in 1+0 or 1+1 redundant configuration. The combined output power of both
outputs shall not exceed the rated output power. The power supply must meet both static and
dynamic voltage regulation requirements for the minimum loading conditions. Also, the power
supply shall be able to supply the listed peak currents and power for a minimum of 10 seconds.
Outputs are not required to be peak loaded simultaneously.
+12V
+5Vsb
MAX Load
62.0A 3.0A
MIN DYNAMIC Load
3.0A 0.1A
MIN STATIC Load
0.0A 0.1A
PEAK Load
70.0A(12s min)
5.0A (0.5s min @ turn-on)
Max Output Power (continuous)
12V x 62A = 744W max
5V x 3A = 15W max
Peak Output Power
12V x 70A = 840W pk
5V x 5A = 25W pk
2.10.2
Standby Output / Standby Mode
The 5Vsb output shall be present when an AC input greater than the power supply turn-on AC
voltage is applied. Applying an external 5.25V to 5Vsb shall not cause the power supply to shut
down or exceed operating limits. When the external voltage is removed the voltage shall return
to the power supplies operating voltage without exceeding the dynamic voltage limits.
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