LSI LSI8751D, Руководство пользователя, Страница: 40 / 58

3-2 Technical Specifications
Figure 3.1 LSI8751D Mechanical Drawing
3.1.2 Electrical Characteristics
The LSI8751D maximum power requirements, including SCSI
TERMPWR, under normal operation, are shown in
Table 1.1 :
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.
J3
J1
J2
J4
LSI53C875J
127.00 (REF) (5.00 (REF))
82.55 (REF) (3.25 (REF))
All dimensions are given in millimeters and (inches).
Table 3.1 Maximum Power Requirements
+5 V DC
±
5% 1.5 A Over the operating range 5
°
C to 55
°
C
+3.3 V DC
±
0.3 V 130 mA Over the operating range 5
°
C to 55
°
C
when operating in a 3.3 V PCI slot