LT1039ACSW Linear Technology, LT1039ACSW Datasheet

IC DRIVR/RCVR TRIPL-RS232 18SOIC

LT1039ACSW

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

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

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APPLICATIO S
FEATURES
TYPICAL APPLICATIO
Operates from 5V to 15V Supplies
Fully Protected Against Overload
Outputs Can Be Driven 30V Without Damage
Three-State Outputs; Outputs Open When Off
Bipolar Circuit—No Latchup
Triple Driver/Receiver
No Supply Current in Shutdown
30k Input Impedance
Meets All RS232 Specifications
16-Pin Version—Pin Compatible with MC145406
Available in SO Package
15kV ESD: LT1039A
RS232 Interface
Terminals
Modems
30V Input Range
*BIAS PIN USED
TO KEEP THE
RECEIVER ON
WHILE IN SHUTDOWN
U
RS232 OUT
RS232 OUT
RS232 OUT
RS232 IN
RS232 IN
RS232 IN
BIAS*
– 12V
12V
1
2
3
4
5
6
7
8
9
V
V
+
U
30k
30k
30k
LT1039
GND
1039 TA01
V
CC
18
17
16
15
14
13
12
11
10
5V
ON/OFF
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
LOGIC
DESCRIPTIO
The LT
cludes shutdown. Each receiver will accept up to 30V
input and can drive either TTL or CMOS logic. The RS232
drivers accept TTL logic inputs and output RS232 voltage
levels. The outputs are fully protected against overload
and can be shorted to ground or up to 30V without
damage to the drivers. Additionally, when the system is
shut down or power is off, the outputs are in a high
impedance state allowing data line sharing. Bipolar cir-
cuitry makes this driver/receiver exceptionally rugged
against overloads and immune to latchup.
A BIAS pin allows one receiver to be kept on while the rest
of the part is shut down.
The LT1039 is also available in the 16-pin version,
without shutdown or BIAS pin functions.
For applications requiring operation from a single 5V
supply, see the LT1080/LT1081, LT1180A/LT1181A and
LT1130A data sheets. For applications requiring 15kV
ESD, see the LT1039A.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1039 is a triple RS232 driver/receiver that in-
– 0.5
1.5
1.0
0.5
V
V
+
0
RS232 Driver/Receiver
2
U
Driver Output Swing
OUTPUT CURRENT (mA)
NEGATIVE
LT1039/LT1039-16
4
with Shutdown
POSITIVE
6
8
1039 TA02
10
1039fd
1

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LT1039ACSW Summary of contents

Page 1

... The LT1039 is also available in the 16-pin version, without shutdown or BIAS pin functions. For applications requiring operation from a single 5V supply, see the LT1080/LT1081, LT1180A/LT1181A and LT1130A data sheets. For applications requiring 15kV ESD, see the LT1039A. , LTC and LT are registered trademarks of Linear Technology Corporation LT1039 ...

Page 2

LT1039/LT1039- ABSOLUTE MAXIMUM Supply Voltage + – Driver ( .................................................. 16V Receiver (V ) ....................................................... 7V CC Logic Inputs ................................................... V Receiver Inputs ........................................................ 30 ON/OFF Input ............................................... GND to 12V – Driver Outputs ...

Page 3

ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range, otherwise specifications are at T PARAMETER CONDITIONS Receiver 2.5V (Note 2) CC ON/OFF Input Voltage Thresholds Input Low Level (V Input High ...

Page 4

LT1039/LT1039- TYPICAL PERFORMANCE CHARACTERISTICS Supply Current in Shutdown 1000 SUPPLY CURRENT MEASURED + INTO V AND V CC 100 10 1 –55 – 100 125 TEMPERATURE ( C) 1039 G04 ON/OFF Pin Current vs ...

Page 5

W U TYPICAL PERFORMANCE CHARACTERISTICS Shutdown to Receiver Output 6V 4V RECEIVER OUTPUT ON/OFF INPUT 1ms/DIV PIN FUNCTIONS (Pin numbers listed are for 18-pin device) + – ...

Page 6

LT1039/LT1039- APPLICATIONS INFORMATION The driver output stage of the LT1039 offers significantly improved protection over older bipolar and CMOS de- signs. In addition to current limiting, the driver output can be externally forced to 30V with no damage ...

Page 7

U U APPLICATIONS INFORMATION When driving CMOS logic from a receiver that will be used in the shutdown mode and there is no other active receiver on the line, a 51k resistor can be placed from the logic input to ...

Page 8

LT1039/LT1039-16 PACKAGE DESCRIPTION CORNER LEADS OPTION (4 PLCS) 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.300 BSC (0.762 BSC) 0.008 – 0.018 0 – 15 (0.203 – 0.457) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE ...

Page 9

PACKAGE DESCRIPTION 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 0.300 ...

Page 10

LT1039/LT1039-16 PACKAGE DESCRIPTION 0.291 – 0.299** (7.391 – 7.595) 0.010 – 0.029 (0.254 – 0.737) 0.009 – 0.013 NOTE 1 (0.229 – 0.330) 0.016 – 0.050 (0.406 – 1.270) NOTE: 1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON ...

Page 11

... DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... ESD Protection, 0.1 F Capacitors 60V Protected with 15kV ESD Protection www.linear.com ON/OFF CC LT1039 RS232 OUT RS232 OUT RS232 OUT RS232 IN 30k RS232 IN 30k RS232 IN 30k – V GND 10 1039 TA03 LT/TP 1102 1K REV D • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1991 1039fd ...

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