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Figurea.1 sym22801 mechanical drawing, A.2 electrical characteristics, Electrical characteristics – LSI SYM22801 User Manual

Page 58: Sym22801 mechanical drawing, Figure a.1. it

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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