LSI 25083 ,

Technical Specifications 3-19

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). Tabl e 3.1 1 lists

the power supply for the RAID controllers for each of the three states at

the different voltages.

Table3.11 Power Supply for SAS 9260 RAID Controllers

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

3.3.4.4 Operating 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

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