LSI LSI22915A, Руководство пользователя, Страница: 42 / 50

3-2 Technical Specifications
Version 1.3 Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.
Figure 3.1 LSI22915A Board Layout
3.1.2 Electrical Characteristics
Table 3.1 lists the LSI22915A maximum power requirements, which
include SCSI TERMPWR (termination power), under normal operation.
The PCI
PRSNT1
and
PRSNT2
pins are set to indicate a 15 W maximum
configuration.
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.
J4 J3
Channel B
Channel A
LSI53C1010
Channel A Channel B
J6
J1
J7
HDR1
HDR2
HDR3
HDR5
Table 3.1 Maximum Power Requirements
+5 V DC
±
5% 3.0 A Over the operating range 5–55
°
C