Datasheet

6
LTC1334
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
RS485 Driver Output High Voltage
vs Output Current
RS485 Driver Output Short-Circuit
Current vs Temperature
RS485 Driver Output Low Voltage
vs Output Current
RS232 Driver Output Voltage
vs Temperature
Driver Output Leakage Current
(Disable/Shutdown) vs Temperature
RS232 Driver Short-Circuit
Current vs Temperature
OUTPUT VOLTAGE (V)
0
OUTPUT CURRENT (mA)
3
5
LTC1334 • TPC13
12 4
–80
–70
–60
–50
–40
–30
–20
–10
0
T
A
= 25°C
V
CC
= 5V
OUTPUT VOLTAGE (V)
0
OUTPUT CURRENT (mA)
120
100
80
60
40
20
0
1234
LTC1334 • TPC14
5
T
A
= 25°C
V
CC
= 5V
TEMPERATURE (
°C)
–50
OUTPUT SHORT-CIRCUIT CURRENT (mA)
160
140
120
100
80
60
40
25 75
LTC1334 • TPC15
–25 0
50 100 125
SOURCE
(V
OUT
= 0V)
SINK
(V
OUT
= 5V)
V
CC
= 5V
TEMPERATURE (
°C)
–50
OUTPUT VOLTAGE (V)
10
8
6
4
2
0
–2
–4
–6
–8
–10
0
50
75
LTC1334 • TPC16
–25
25
100
125
V
CC
= 5V
R
L
= 3k
OUTPUT HIGH
OUTPUT LOW
TEMPERATURE (
°C)
–50
OUTPUT SHORT-CIRCUIT CURRENT (mA)
30
25
20
15
10
5
0
25 75
LTC1334 • TPC17
–25 0
50 100 125
SOURCE
SINK
V
OUT
= 0V
V
CC
= 5V
TEMPERATURE (
°C)
–50
OUTPUT LEAKAGE CURRENT (µA)
500
450
400
350
300
250
200
150
100
50
0
0
50
75
LTC1334 • TPC18
–25
25
100
125
V
CC
= 5V
PIN FUNCTIONS
UUU
C1
+
(Pin 1): Commutating Capacitor C1 Positive Terminal.
Requires 0.1µF external capacitor between Pins 1 and 2.
C1
(Pin 2): Commutating Capacitor C1 Negative Terminal.
V
DD
(Pin 3): Positive Supply Output for RS232 Drivers.
Requires an external 0.1µF capacitor to ground.
A1 (Pin 4): Receiver Input.
B1 (Pin 5): Receiver Input.
Y1 (Pin 6): Driver Output.
Z1 (Pin 7): Driver Output.
SEL1 (Pin 8): Interface Mode Select Input.
SEL2 (Pin 9): Interface Mode Select Input.
Z2 (Pin 10): Driver Output.
Y2 (Pin 11): Driver Output.
B2 (Pin 12): Receiver Input.
A2 (Pin 13): Receiver Input.
GND
(Pin 14): Ground.
V
EE
(Pin 15): Negative Supply Output. Requires an exter-
nal 0.1µF capacitor to ground.