LSI 25083 manual Power Supply for SAS 9260 RAID Controllers

operating from the 3.3V rails and the 12V rail provide the necessary voltages. The following states determine the typical current consumption of the controller:

•State 1: During a hard reset

•State 2: During a drive stress test

•State 3: While sitting idle at the DOS prompt

The supply voltages are 12V ± 8 percent (from PCI edge connector only) and 3.3V ± 9 percent (from PCI edge connector only). Table 3.11 lists the power supply for the RAID controllers for each of the three states at the different voltages.

Table 3.11 Power Supply for SAS 9260 RAID Controllers

PCI Edge Connector	State 1	State 2	State 3
3.3V supply	330mA	330mA	330mA
+12V supply	1.00A	1.81A	1.53A
3.3V auxiliary supply	30mA	30mA	30mA

Note: +12V is used in the charging circuitry for the battery pack on the optional iBBU battery-backed daughter card. If the BBU daughter card is mounted, the following power consumption figures apply:

–During trickle charging of the battery pack: N/A (no trickle charge for Li-ION)

–During fast charging of the battery pack: 230mA in +12V current

3.3.4.4Operating and Non-operating Conditions for SAS 9260 RAID Controllers

For the SAS 9260 RAID controllers, the operating (thermal and atmospheric) conditions are:

•Relative humidity range is 5 percent to 90 percent noncondensing (20 percent to 80 percent noncondensing for the RAID controllers)

•Airflow must be at least 200 linear feet per minute (LFPM) to avoid operating the LSISAS2108 processor above the maximum ambient temperature

Technical Specifications 3-19

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