Datasheet
2
LTC1343
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
T
JMAX
= 150°C, θ
JA
= 65°C/W
Consult factory for Military grade parts.
(Note 1)
Supply Voltage ....................................................... 6.5V
Input Voltage
Transmitters ........................... –0.3V to (V
CC
+ 0.3V)
Receivers............................................... –18V to 18V
Logic Pins .............................. –0.3V to (V
CC
+ 0.3V)
Output Voltage
Transmitters ................. (V
EE
– 0.3V) to (V
DD
+ 0.3V)
Receivers................................ –0.3V to (V
CC
+ 0.3V)
Logic Pins .............................. –0.3V to (V
CC
+ 0.3V)
V
EE
........................................................ –10V to 0.3V
V
DD
....................................................... –0.3V to 10V
Short-Circuit Duration
Transmitter Output ..................................... Indefinite
Receiver Output.......................................... Indefinite
V
EE
.................................................................. 30 sec
Operating Temperature Range
LTC1343C .............................................. 0°C to 70°C
LTC1343I........................................... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
TOP VIEW
GW PACKAGE
44-LEAD PLASTIC SSOP
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
V
DD
C1
+
PWRV
CC
C1
–
D1
D2
D3
V
CC
D4
D4EN
INVERT
R1EN
R1O
R2O
R3O
R4O
M0
M1
M2
CTRL/CLK
DCE/DTE
LATCH
C2
+
C2
–
V
EE
PGND
GND
D1 A
D2 A
D2 B
D3 A
D3 B
D4 A
D4 B
R1 A
R1 B
R2 A
R2 B
R3 A
R3 B
R4 A
423 SET
EC
LB
D2
D3
D1
D4
R1
R2
R3
R4
CHARGE PUMP
LTC1343CGW
LTC1343IGW
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Supplies
I
CC
V
CC
Supply Current (DCE Mode, V.10 Mode, No Load 12 mA
All Digital Pins = GND or V
CC
) V.10 Mode, Full Load ● 80 150 mA
RS530, RS530-A, X.21 Modes, No Load 80 mA
RS530, RS530-A, X.21 Modes, Full Load
● 160 200 mA
V.35 Mode, No Load 20 mA
V.35 Mode, Full Load
● 115 160 mA
V.28 Mode, No Load 20 mA
V.28 Mode, Full Load
● 30 90 mA
No-Cable Mode
● 0.05 1 mA
P
D
Internal Power Dissipation (DCE Mode, V.10 Mode, Full Load 400 mW
All Digital Pins = GND or V
CC
) RS530, RS530-A, X.21 Modes, Full Load 680 mW
V.35 Mode, Full Load 500 mW
V.28 Mode, Full Load 150 mW
V
+
Positive Charge Pump Output Voltage Any Mode, No Load ● 8.5 9.1 V
V.28 Mode, with Load
● 8.0 7.0 V
V
–
Negative Charge Pump Output Voltage V.28 Mode, Full Load ● –7.8 –8.4 V
V.35 Mode, Full Load ● –5.8 –6.7 V
–40°C ≤ T
A
≤ 85°C ● –5.5 V
V.10, RS530, RS530A, X.21 Modes, Full Load ● –5.0 –6.1 V
–40°C ≤ T
A
≤ 85°C ● –4.8 V
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V (Notes 2, 3)