LSI Symbios SYM22801, User Manual

Page: 58 / 80

A-2 Technical Specifications
Figure A.1 SYM22801 Mechanical Drawing
A.2 Electrical Characteristics
The SYM22801 maximum power requirements, including SCSI
TERMPWR, under normal operation are as follows:
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.
The PCI
PRSNT1#
and
PRSNT2#
pins are set to indicate a 15 W
maximum configuration.
SYM 53C 876
N VRAM
FLASH
EEPR O M
TP9
TERM PW R
Fail LED TER MPW R
Fail LED
U 2
J2
J6
J4
J8
J3
J7
J1
J9
J5
U1
96.
52(
R
E
F
) (
3
.8
0(
R
E
F
))
190.50(R EF) (7.50(REF))
NVR AM
+ 5 V DC
±
5% 1.5 A Over the operating range 0–55
°
C
+ 12 V
±
0.6 V 50 mA Over the operating range 0–55 °C
+ 3.3 V
±
0
.
3 V 130 mA Over the operating range 0–55 °C
when operating in a 3.3 V PCI slot