Intel S1200RP Technical Product Specification - Page 29

W mini-ERPS Redundant Power Supply

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Intel® Server System R1000RP Family TPS Power Subsystem cycle OFF for 15sec (with +5VSB/0.1A) and a PSON# cycle HIGH for one second shall be able to reset the power supply. 3.1.6.1 Over Current Protection (OCP) Each output shall have individual OCP protection circuits. The PSU shall shut down and latch off after an over current condition occurs. Whereas OCP of +5VSB shall turn the power supply into "hiccup mode" until the OCP condition is removed. The values are measured at the PSU harness connectors and shall not be damaged from repeated power cycling in this condition. There shall be current sensors and limit circuits to shut down the entire power supply if the limit is exceeded. The limits are listed below. Table 12. Over Load Protection (OCP) Limits Output Voltage +12V1 +12V2 +5V +3.3V -12V +5VSB Continuous Load Current Limit MIN Current Limit MAX 18.2A 20A 18.2A 20A 19.2A 24A 12A 15A 4A 4.5A 3.1.6.2 Over Voltage Protection (OVP) Each output shall have individual OVP protection circuits built in and it shall be locally sensed. The PSU shall shut down and latch off after an over voltage condition occurs. The output voltages are measured at the harness connectors. The voltage shall never exceed the maximum levels when measured at the power pins of the output harness connector during any single point of fail. The voltage shall never trip any lower than the minimum levels when measured at the power pins of the connector. Table 13. Over Voltage Protection (OVP) Limits Output Voltage +3.3V +5V +12V1/+12V2 -12V +5VSB OVP MIN (V) 3.7 5.7 13.3 -13.3 5.7 OVP MAX (V) 4.5 6.5 15.6 -15.6 6.5 3.1.6.3 Over Temperature Protection (OTP) The power supply shall be protected against over temperature conditions caused by loss of fan cooling or excessive ambient temperature. In an OTP condition the PSU will shut down. When the power supply temperature drops to within specified limits, the power supply shall restore power automatically, while the +5VSB remains always 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 temperature recovery condition. 3.2 450W mini-ERPS Redundant Power Supply The 450W 1+1 redundant power supply has two outputs: +12V DC and +5V Standby. There is one Power Distribution Board (PDB) for 450W AC 1+1 redundant power supply. The PDB is Revision 1.2 Intel order number: G91532-003 19

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Intel
®
Server System R1000RP Family TPS
Power Subsystem
Revision 1.2
Intel
order number: G91532-003
19
cycle OFF for 15sec (with +5VSB/0.1A) and a PSON
#
cycle HIGH for one second shall be able
to reset the power supply.
3.1.6.1
Over Current Protection (OCP)
Each output shall have individual OCP protection circuits. The PSU shall shut down and latch
off after an over current condition occurs. Whereas OCP of +5VSB shall turn the power supply
into
“
hiccup mode
”
until the OCP condition is removed. The values are measured at the PSU
harness connectors and shall not be damaged from repeated power cycling in this condition.
There shall be current sensors and limit circuits to shut down the entire power supply if the limit
is exceeded. The limits are listed below.
Table 12. Over Load Protection (OCP) Limits
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
3.1.6.2
Over Voltage Protection (OVP)
Each output shall have individual OVP protection circuits built in and it shall be locally sensed.
The PSU shall shut down and latch off after an over voltage condition occurs. The output
voltages are measured at the harness connectors. The voltage shall never exceed the
maximum levels when measured at the power pins of the output harness connector during any
single point of fail. The voltage shall never trip any lower than the minimum levels when
measured at the power pins of the connector.
Table 13. Over Voltage Protection (OVP) Limits
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
3.1.6.3
Over Temperature Protection (OTP)
The power supply shall be protected against over temperature conditions caused by loss of fan
cooling or excessive ambient temperature. In an OTP condition the PSU will shut down. When
the power supply temperature drops to within specified limits, the power supply shall restore
power automatically, while the +5VSB remains always 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 temperature recovery condition.
3.2
450W mini-ERPS Redundant Power Supply
The 450W 1+1 redundant power supply has two outputs: +12V DC and +5V Standby. There is
one Power Distribution Board (PDB) for 450W AC 1+1 redundant power supply. The PDB is