PRODUCT DATABOOK 1996/1997
LX5241/5242/5243
M
U LT I M O D E
S C S I T
E R M I N AT O R
P
R O D U C T I O N
UltraMAX
D
A T A
S
H E E T
PACKAGE PIN OUTS
N.C.
N.C.
N.C.
1+
1-
2+
2-
HEATSINK
HEATSINK
HEATSINK
3+
3-
4+
4-
5+
5-
DISCONNECT
GND
1
2
3
4
5
6
7
8
9
106
116
126
136
146
156
16
176
186
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
A B S O L U T E M A X I M U M R AT I N G S
(Note 1)
TermPwr Voltage ................................................................................................. +7V
Operating Junction Temperature
Plastic (DB, PW Packages) .......................................................................... 150°C
Storage Temperature Range .............................................................. -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) .................................................... 300°C
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with
respect to Ground. Currents are positive into, negative out of the specified
terminal.
T H E R M A L D ATA
DB PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θ
JA
PW PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θ
JA
100°C/W
50°C/W
V
TERM
HVD
LVD
SE
9-
9+
8-
8+
HEATSINK
HEATSINK
HEATSINK
7-
7+
6-
6+
DIFF B
DIFFSENSE
MASTER/SLAVE
Junction Temperature Calculation: T
J
= T
A
+ (P
D
x
θ
JA
).
The
θ
JA
numbers are guidelines for the thermal performance of the device/pc-board
system. All of the above assume no ambient airflow.
DB PACKAGE
(Top View)
LX5241/5242
("N.C." = No Internal Connection)
MASTER / SLAVE F
UNCTION
T
ABLE
MASTER /
SLAVE
L*
H
Open (Pull-up)
HI Z
1.3V
1.3V
DIFFSENSE
Status
0mA
15mA Source
15mA Source
* When in Low state, terminator will detect state of DIFFSENSE line.
1+
1-
2+
2-
3+
3-
4+
4-
5+
5-
DISCONNECT
GND
1
2
3
4
5
6
7
8
9
106
116
126
24
23
22
21
20
19
18
17
16
15
14
13
V
TERM
N.C.
9-
9+
8-
8+
7-
7+
6-
6+
DIFFSENSE
MASTER/SLAVE
DIFFSENSE / P
OWER
U
P
/ P
OWER
D
OWN
F
UNCTION
T
ABLE
LX5241/5243
LX5242
DISCONNECT DISCONNECT
L
H
DIFF
SENSE
L < 0.5V
Outputs
Status
Type
PW PACKAGE
(Top View)
LX5241/5242
("N.C." = No Internal Connection)
Quiescent
Current
7mA
Enable
S.E.
L
H
0.7 - 1.9V
Enable
LVD
21mA
N.C.
1+
1-
2+
2-
N.C.
3+
3-
4+
4-
5+
5-
DISCONNECT
GND
1
2
3
4
5
6
7
8
9
106
116
126
136
146
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
TERM
N.C.
9-
9+
8-
8+
N.C.
7-
7+
6-
6+
DIFFB
DIFFSENSE
MASTER/SLAVE
L
H
Open
H
L
Open
H > 2.4V
X
Disable
Disable
HI Z
HI Z
1mA
10µA
PW PACKAGE
(Top View)
LX5243
("N.C." = No Internal Connection)
2
Copyright © 2000
Rev. 1.4 11/00
MICROSEMI [ MICROSEMI CORPORATION ]
