LT1039ACSW Linear Technology, LT1039ACSW Datasheet - Page 5

• Manufacturer Part Number: LT1039ACSW
• Description: IC DRIVR/RCVR TRIPL-RS232 18SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LT1039ACSW

• Number Of Drivers/receivers: 3/3
• Protocol: RS232
• Voltage - Supply: 5 V ~ 15 V
• Mounting Type: Surface Mount
• Package / Case: 18-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIN
TYPICAL PERFORMANCE CHARACTERISTICS
V
drops to zero in shutdown mode. Driver outputs are in a
high impedance state when V
BIAS (Pin 2): Keeps receiver 1 on while the LT1039 is in
the shutdown mode. Leave BIAS pin open when not in use.
See Applications Information for proper use.
REC IN (Pins 3, 5, 7): Receiver Input Pins. Accepts RS232
voltage levels ( 30V) and has 0.4V of hysteresis to pro-
vide noise immunity. Input impedance is nominally 30k .
TR OUT (Pins 4, 6, 8): Driver Outputs with RS232 Voltage
Levels. Outputs are in a high impedance state when in the
shutdown mode or when power is off (V
allow data line sharing. Outputs are fully short-circuit
protected from V
in the shutdown mode. Typical output breakdowns are
greater than 45V and higher applied voltages will not
damage the device if moderately current limited.
+
, V
U
–
FUNCTIONS
(Pins 1, 9): Driver Supply Pins. Supply current
RECEIVER
OUTPUT
U
ON/OFF
INPUT
6V
4V
2V
0V
5V
0V
–
+ 30V to V
Shutdown to Receiver Output
V
CC
U
= 5V
(Pin numbers listed are for 18-pin device)
W
+
+
– 30V with power on, off or
and V
1ms/DIV
U
–
= 0V.
+
and V
1039 G11
–
= 0V) to
(THRU 25k )
RECEIVER 1
BIAS INPUT
GND (Pin 10): Ground Pin.
TR IN (Pins 11, 13, 15): RS232 Driver Input Pins. Inputs
are TTL/CMOS compatible. Inputs should not be allowed
to float. Tie unused inputs to V
REC OUT (Pins 12, 14, 16): Receiver Outputs with TTL/
CMOS Voltage Levels. Outputs are in a high impedance
state when in the shutdown mode to allow data line
sharing. Outputs are fully short-circuit protected to ground
or V
ON/OFF (Pin 17): Controls the operation mode of the
LT1039 and is TTL/CMOS compatible. A logic low puts the
device in the shutdown mode which reduces input supply
current to zero and places both driver and receiver outputs
in a high impedance state.
V
OUTPUT
CC
CC
(Pin 18): 5V Power for Receivers.
with power on, off or in the shutdown mode.
6V
4V
2V
0V
5V
0V
BIAS Pin Response Time
V
CC
= 5V
0.2 s/DIV
LT1039/LT1039-16
CC
.
1039 G12
1039fd
5