Technical Product Specification for Canoe Pass - Preminary - Intel

Intel ® Server System P4000CP Power System Options Intel ® Server Board S2600CP and Server System P4000CP TPS
13.5.3 Protection Circuits
The PDB shall shut down all the DC/DC converters on the PDB and the power supply (via
PSON) if there is a fault condition on the PDB (OVP or OCP). If the PDB DC/DC converter
latches off due to a protection circuit tripping, an AC cycle OFF for 15sec min or a PSON# cycle
HIGH for 1sec shall be able to reset the power supply and the PDB.
13.5.3.1 Over-Current Protection (OCP)/240VA Protection
Each DC/DC converter output on PDB has individual OCP protection circuits. The PS+PDB
combo shall shutdown and latch off after an over current condition occurs. This latch shall be
cleared by toggling the PSON # signal or by an AC power interruption. The values are measured
at the PDB harness connectors. The DC/DC converters shall not be damaged from repeated
power cycling in this condition. Also, the +12V output from the power supply is divided on the
PDB into 4 channels and +12V4 is limited to 240VA of power. There are current sensors and
limit circuits to shut down the entire PS+PDB combo if the limit is exceeded. The limits are listed
in below table. -12V and 5VSB is protected under over current or shorted conditions so that no
damage can occur to the power supply. Auto-recovery feature is a requirement on 5VSB rail.
150
Table 146. PDB Over Current Protection Limits/240VA Protection
Output Voltage Min OCP Trip Limits Max OCP Trip Limits Usage Connectors
+3.3V 27A 32A PCIe, Misc P1, P5, P6
+5V 27A 32A PCIe, HDD, Misc P1, P5, P6
+12V1 91A 100A CPU1 + memory Fans,
Misc
P1-P3, P12
+12V2 76A 100A HDD & peripherals P13-P16
+12V3 18A 20A P5-P11
13.5.3.2 Over Voltage Protection (OVP)
Each DC/DC converter output on PDB have individual OVP protection circuits built in and it shall
be locally sensed. The PS+PDB combo shall shutdown and latch off after an over voltage
condition occurs. This latch shall be cleared by toggling the PSON # signal or by an AC power
interruption. Table 98 contains the over voltage limits. The values are measured at the PDB
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 PDB
connector.
Table 147. Over Voltage Protection (OVP) Limits
Output voltage OVP min (v) OVP max (v)
+3.3V 3.9 4.8
+5V 5.7 6.5
-12V -13.3 -15.5
+5VSB 5.7 6.5
Intel Confidential Revision 0.8
Intel order number G26942-003