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
TA = 25°C
VCC = 5V
OUTPUT VOLTAGE (V)
0
OUTPUT
CURRENT
(mA)
120
100
80
60
40
20
0
123
4
LTC1334 TPC14
5
TA = 25°C
VCC = 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
(VOUT = 0V)
SINK
(VOUT = 5V)
VCC = 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
VCC = 5V
RL = 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
VOUT = 0V
VCC = 5V
TEMPERATURE (
°C)
–50
OUTPUT
LEAKAGE
CURRENT
(
A)
500
450
400
350
300
250
200
150
100
50
0
50
75
LTC1334 TPC18
–25
25
100
125
VCC = 5V
PIN FUNCTIONS
UU
U
C1+(Pin 1): Commutating Capacitor C1 Positive Terminal.
Requires 0.1
F external capacitor between Pins 1 and 2.
C1– (Pin 2): Commutating Capacitor C1 Negative Terminal.
VDD (Pin 3): Positive Supply Output for RS232 Drivers.
Requires an external 0.1
F 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.
VEE (Pin 15): Negative Supply Output. Requires an exter-
nal 0.1
F capacitor to ground.