Technical Product Specification

450W Power Subsystem Intel
®
Server System R1000SP Product Family TPS
26 Intel Order Number G64249-002 Revision 2.0
4.5.14
Voltage Interruptions
The power supply must comply with the limits defined in EN55024: 1998/A1: 2001/A2: 2003
using the IEC 61000-4-11: Second Edition: 2004-03 test standard and performance criteria C
defined in Annex B of CISPR 24.
4.6
Outputs Load Requirements
The combined continuous power output must not exceed 400W. Each output has a maximum
and minimum current rating. The power supply must meet both static and dynamic voltage
regulation requirements for the minimum dynamic loading conditions. The power supply must
meet only the static load voltage regulation requirements for the minimum static load conditions.
Table 28. Load Ratings
+3.3V
+5.0V
+12V1
12V2
+5VSB
Max. Continuous Current
12A
10A
33A
18A
3A
Min. Dynamic Current
0.5A
0.5A
1A
1A
0.5A
Min Static Current
0.5A
0.5A
0.5A
0A
0.1A
* 5V and 3.3V combine maximum power is 65 Watts
*12V1 and 12V2 combine maximum current is 33A
*12V1 and 12V2 combined should be able to support 39A for 10msec.
4.7
Protection Circuits
Protection circuits inside the PDB (and the power supply) must cause either the power supply’s
main +12V output to shutdown, which in turn shuts down the other three outputs on the PDB or
first shut down any of the three outputs on the PDB, which in turn also shuts down entire power
supply combo. If the power supply latches off due to a protection circuit tripping, an AC cycle
OFF for 15sec min and a PSON# cycle HIGH for one sec must be able to reset the power
supply and the PDB.
4.7.1
Over-current Protection (OCP)
Each DC/DC converter output on PDB must have individual OCP protection circuits. The
PS+PDB combo must shutdown and latch off after an over current condition occurs. This latch
must be cleared by toggling the PSON# signal or by an AC power interruption. Table below
contains the over current limits. The values are measured at the PDB harness connectors. The
DC/DC converters must 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 each is limited to
240VA of power. There must be current sensors and limit circuits to shut down the entire
PS+PDB combo if the limit is exceeded. The limits are listed below.
Table 29. Power Supply Over Current Protection
OUTPUT
OVER CURRENT LIMIT
+3.3V
17A minimum; 23A maximum
+5V
13A minimum; 18A maximum
+5VSB
3.6A minimum; 8A maximum
+12V1
Protected by PS module
+12V2
18A minimum, 20A maximum
4.7.2
Over-voltage Protection (OVP)
Each DC/DC converter output on PDB must have individual OVP protection circuits built in and
it must be locally sensed. The PS+PDB combo must shutdown and latch off after an over
voltage condition occurs. This latch must be cleared by toggling the PSON# signal or by an AC
power interruption. Table below contains the over voltage limits. The values are measured at