Intel® Server System R1000SPO Product Family TPS
26
3.3.13.1
Over-current Protection (OCP)
The power supply shall have current limit to prevent the outputs from exceeding the values shown in table
below. If the current limits are exceeded the power supply shall shutdown and latch off. The latch will be
cleared by toggling the PSON
#
signal or by an AC power interruption. The power supply shall not be
damaged from repeated power cycling in this condition. 5VSB will be auto-recovered after removing OCP
limit.
Table 19. Over Current Protection – 350W Power Supply
Output Voltage
Continuous Load
Current Limit MIN Current Limit MAX
+12V1
18.2A
20A
+12V2
18.2A
20A
+5V
19.2A
24A
+3.3V
12A
15A
-12V
4A
+5VSB
4.5A
Table 20. Over Current Protection – 450 Watt Power Supply
Output
Min OCP
Max OCP
+12V
40 A
54 A
5Vstby
3.6A~8A
3.3.13.2
Over-voltage Protection (OVP)
The power supply over voltage protection shall be locally sensed. The power supply shall shutdown and
latch off after an over voltage condition occurs. This latch shall be cleared by an AC power interruption. The
values are measured at the output of the power supply’s connectors. The voltage shall never exceed the
maximum levels when measured at the power connectors of the power supply connector during any single
point of fail. The voltage shall never trip any lower than the minimum levels when measured at the power
connector. 12VSB will be auto-recovered after removing OVP limit.
Table 21. Over Voltage Protection - 350W Power Supply
Output Voltage OVP MIN (V) OVP MAX (V)
+3.3V
3.7
4.5
+5V
5.7
6.5
+12V1/+12V2
13.3
15.6
-12V
-13.3
-15.6
+5VSB
5.7
6.5
