
ULTRA 27-L
INE
, P
LUG
AND
P
LAY
SCSI T
ERMINATOR
LX 5122
PRODUCT DATABOOK 1 9 9 6 / 1 9 9 7
Copyright 1999
Rev. 1.0 6/99
2
P
R O D U C T I O N
D
A T A
S
H E E T
UltraMAX
2.65
2.85
12
635
50
-23
V
20
670
150
-24
-10
-10
1
mA
mA
μA
mA
μA
μA
μA
MHz
mA
-20
35
7
Termination Voltage
High Level Disable Input Voltage
Low Level Disable Input Voltage
Operating Virtual Junction Temperature Range
LX5122C
Note 2. Range over which the device is functional.
V
TERM
V
IH
V
IL
R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S
(Note 2)
Parameter
Symbol
Units
Recommended Operating Conditions
Min.
Typ.
Max.
4.0
2
0
5.5
V
TERM
0.8
V
V
V
0
125
°C
E L E C T R I C A L C H A R A C T E R I S T I C S
Term Power = 4.75V unless otherwise specified.
Unless otherwise specified, these specifications apply at the recommended operating ambient tempera-
ture of T
A
= 25°C. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.
Parameter
Symbol
Test Conditions
Units
LX5122
Typ.
Min.
Max.
Output High Voltage
TermPwr Supply Current
V
OUT
I
CC
All data lines = open
All data lines = 0.5V
DISC1 and DISC2 < 0.8V
V
OUT
= 0.2V
DISC1 = 0V
DISC2 = 0V
DISC1 and DISC2 < 0.8V, V
O
= 0.2V
Output Current
Disable Input Current
I
OUT
I
IN
DISC1
DISC2
Output Leakage Current
Channel Bandwidth
Termination Sink Current, per Channel
BW
I
SINK
V
OUT
= 4V
A B S O L U T E M A X I M U M R A T I N G S
(Note 1)
TermPwr Voltage .....................................................................................................7V
Continuous Output Voltage Range .............................................................. 0 to 5.5V
Continuous Disable Voltage Range.............................................................. 0 to 5.5V
Operating Junction Temperature
Plastic (PW & DB Packages)......................................................................... 150oC
Storage Temperature Range ............................................................. -65°C to +150°C
Solder Temperature (Soldering, 10 seconds) ................................................... 300°C
Note 1. Exceeding these ratings could cause damage to the device.
P A C K A G E P I N O U T S
PW PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θ
JA
DB PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θ
JA
50°C/W
50°C/W
Junction Temperature Calculation: T
= T
+ (P
x
θ
).
The
θ
numbers are guidelines for the thermal performance of the device/pc-board
system. All of the above assume no ambient airflow.
T H E R M A L D A TA
DB PACKAGE
(Top View)
T27
T26
T25
T18
N1
T17
T16
T15
N.C.
GND
GND
GND
GND
V
T
T14
T13
T12
N.C.
N.C.
T11
T24
T23
T19
T20
T1
T2
W1
W2
T3
T4
T5
GND
GND
GND
GND
DISC1
DISC2
T6
T7
T8
T9
T10
T21
T22
1
44
2
43
3
42
4
41
5
40
6
39
7
38
8
37
9
36
10
35
11
34
12
33
13
32
14
31
15
30
16
29
17
28
18
27
19
26
20
25
21
24
22
23