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3-14 Ultra160 SCSI to PCI Host Adapter Characteristics
3.4.1 Electrical Characteristics
This section provides the power requirements for standard PCI boards
and Low Profile PCI Ultra160 SCSI boards.
3.0.0.1 Standard and Low Profile PCI Boards
Table 3.4 lists the maximum power requirements, which include SCSI
TERMPWR, under normal operation.
Table 3.4 Maximum Power Requirements
Host Adapter PCI +5.0 V DC PCI +3.3 V DC
PCI PRSNT1#/
PRSNT2# Power
Over the
Operating Range
LSI20160
1
1.3 A, ±5 % 1.00 A, ±5 % 7.5 W 0 ˚C to 55 ˚C
LSI22915A
1
3.0 A, ±5 % N/A 15 W 0 ˚C to 55 ˚C
ITI6200U3LP
1
3.0 A, ±5 % N/A 15 W 0 ˚C to 55 ˚C
LSI21040
1
3.0 A, ±5 % N/A 7.5 W 0 ˚C to 55 ˚C
LSI21003 1.5 A, ±5 % N/A 15 W 0 ˚C to 55 ˚C
LSI20160L
2
1.3 A, ±5%
or
0.40 A, ±5%
1.00 A, ±5 % 7.5 W 0 ˚C to 55 ˚C
LSI22903
2
1.3 A, ±5%
or
0.40 A, ±5%
0.80 A, ±5 % 7.5 W 0 ˚C to 55 ˚C
1. Under abnormal conditions, such as a short on SCSI TERMPWR, +5 V current may be higher. At
temperatures of at least 25 ˚C, a current of 4 A is sustained no longer than 30 seconds before the
self-resetting TERMPWR short circuit protection device opens.
2. Under abnormal conditions, such as a short on SCSI TERMPWR, +5 V current may be higher. At
temperatures of at least 25 ˚C, a current of 8 A is sustained no longer than 0.5 seconds before the
self-resetting TERMPWR short circuit protection device opens.