LT1039A_15 [Linear]
Triple RS232 Driver/Receiver with Shutdown;
| 型号： | LT1039A_15 |
| 厂家： | 
Linear |
| 描述： | Triple RS232 Driver/Receiver with Shutdown |
| 文件： | 总14页 (文件大小：1707K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1039A/LT1039A-16
Triple RS232 Driver/Receiver
with Shutdown
FeaTures
DescripTion
The LTC®1039A is a triple RS232 driver/receiver that
includes 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.Theoutputsarefullyprotectedagainstoverloadand
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. On-chip ESD protection elimi-
nates the need for external protection devices.
n
On-Chip ESD Protection:
±±1kV Human Body Model
±±1kV IEC-±000-4-2 Air Gap Test**
±ꢀkV IEC-±000-4-2 Contact Test
n
±21kBd Operation with 3kΩ/2100pF Load
n
210kBd Operation with 3kΩ/±000pF Load
n
Outputs Can Be Driven ±30V Without Damage
n
No Supply Current in Shutdown
n
Operates from 5V to 15V Supplies
n
Fully Protected Against Overload
n
Three-State Outputs; Outputs Open When Off
A bias pin allows one receiver to be kept on while the rest
of the part is shut down.
n
Bipolar Circuit—No Latchup
n
30V Input Range
n
n
n
n
n
TheLT1039Aisalsoavailableinthe16-pinversion,without
shutdown or bias pin functions.
Triple Driver/Receiver
30kΩ Input Impedance
Meets All RS232 Specifications
16-Pin Version—Pin Compatible with MC145406
Available in SO Package
For applications requiring operation from a single 5V
supply, see the LT1180A/LT1181A and LT1130A data
sheets.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
applicaTions
n
RS232 Interface
n
Terminals
n
Modems
Typical applicaTion
1
18
17
16
+
12V
5V
V
V
CC
Driver Output Swing
LT1039A
30k
2
3
BIAS*
ON/OFF
LOGIC
+
V
RS232 IN
–0.4
–0.8
–1.2
–1.6
–2.0
50Ω**
4
5
15
14
RS232 OUT
RS232 OUT
RS232 OUT
LOGIC
LOGIC
RS232 IN
30k
30k
*BIAS PIN USED
TO KEEP THE
50Ω**
6
7
13
12
LOGIC
LOGIC
RECEIVER ON
1.2
0.8
0.4
WHILE IN SHUTDOWN
RS232 IN
**50Ω RESISTORS
MAY BE REQUIRED
FOR IEC-1000-4-2
ESD PROTECTION
DEPENDING UPON
PC BOARD AND
50Ω**
–12V
8
9
11
10
–
V
LOGIC
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT CURRENT (mA)
1039A TA02
–
V
GND
1039A TA01
CONNECTOR LEAD LENGTH
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For more information www.linear.com/1039
LT1039A/LT1039A-16
absoluTe MaxiMuM raTings (Note ±)
Supply Voltage
Short-Circuit Duration...................................... Indefinite
+
–
Driver (V , V )..................................................... 16V
Operating Temperature Range
Receiver (V ) ........................................................7V
LT1039AC ................................................ 0°C to 70°C
LT1039AM (OBSOLETE)................... –55°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)...................300°C
CC
–
Logic Inputs.....................................................V to 25V
Receiver Inputs....................................................... 30V
ON/OFF Input ................................................GND to 12V
–
+
Driver Outputs ...............................V + 30V to V – 30V
pin conFiguraTion
TOP VIEW
+
1
2
3
4
5
6
7
8
9
V
CC
18
17
16
15
14
13
12
11
10
V
BIAS
ON/OFF
REC1 OUT
TR1 IN
TOP VIEW
+
REC1 IN
TR1 OUT
REC2 IN
TR2 OUT
REC3 IN
TR3 OUT
1
2
3
4
5
6
7
8
V
CC
16
15
14
13
12
11
10
9
V
REC1 OUT
TR1 IN
REC1 IN
TR1 OUT
REC2 IN
TR2 OUT
REC3 IN
TR3 OUT
REC2 OUT
TR2 IN
REC2 OUT
TR2 IN
REC3 OUT
TR3 IN
–
REC3 OUT
TR3 IN
GND
V
N PACKAGE
18-LEAD PDIP
SW PACKAGE
18-LEAD PLASTIC SO
–
GND
V
T
JMAX
= 125°C, q = 79°C/W, q = 36°C/W (N)
JA JC
JMAX
N PACKAGE
16-LEAD PDIP
SW PACKAGE
16-LEAD PLASTIC SO
T
= 125°C, q = 90°C/W, q = 26°C/W (SW)
JA JC
T
JMAX
= 125°C, q = 90°C/W, q = 50°C/W (N)
JA JC
JMAX
J PACKAGE
18-LEAD CERDIP
= 150°C, q = 88°C/W, q = 22°C/W (J)
T
= 125°C, q = 95°C/W, q = 27°C/W (SW)
JA JC
T
JMAX
JA
JC
OBSOLETE PACKAGE
Consider the N Package for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
orDer inForMaTion
LEAD FREE FINISH
LT1039ACSW16#PBF
LT1039ACSW#PBF
LT1039ACN16#PBF
LT1039ACN#PBF
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
16-Lead Plastic SO (Wide)
18-Lead Plastic SO (Wide)
16-Lead Plastic PDIP
TEMPERATURE RANGE
0°C to 70°C
LT1039ACSW16#TRPBF LT1039ACSW16
LT1039ACSW #TRPBF
LT1039ACSW
LT1039ACN16
LT1039ACN
0°C to 70°C
N/A
N/A
0°C to 70°C
18-Lead Plastic PDIP
0°C to 70°C
OBSOLETE PACKAGE
18-Lead CERDIP
LT1039AMJ#PBF
LT1039AMJ#TRPBF
–55°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
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For more information www.linear.com/1039
LT1039A/LT1039A-16
elecTrical characTerisTics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 21°C.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
+
–
Driver V = ±2V, V = –±2V, V
= 2.1V (Note 2)
ON/OFF
Output Voltage Swing
Load = 3k to Ground
+
–
+
–
l
l
Positive
Negative
V – 2.0 V – 1.3
V
V
V + 1.5 V + 1.0
l
l
Logic Input Voltage Levels
Logic Input Current
Input Low Level (V
= High)
= Low)
1.4
0.8
V
V
OUT
OUT
Input High Level (V
2.0
1.4
V
V
≥ 2.0V
≥ 0.8V
1
5
20
20
µA
µA
IN
IN
Output Short-Circuit Current
Sourcing Current, V
= 0V
20
–15
30
–30
mA
mA
OUT
Sinking Current, V
= 0V
OUT
l
l
Output Leakage Current
Supply Leakage Current
Slew Rate
Shutdown (Notes 3, 4), V
Shutdown (Note 3)
=
18V, V = 0V
10
1
200
100
30
µA
µA
OUT
IN
R = 3k, C = 51pF to 2500pF
4
15
1
V/µs
mA
L
L
Supply Current
V
OUT
= Low
5
Prop Delay (t
(t
)
)
0.6
0.8
1.2
1.2
µs
µs
PLH
PHL
Receiver V = 1V, V
= 2.1V (Note 2)
CC
ON/OFF
l
l
Input Voltage Thresholds
Input Low Level (V
= High)
0.5
0.1
1.3
1.7
V
V
OUT
OUT
Input High Level (V
= Low)
2.8
1.0
l
l
Hysteresis
0.4
30
V
Input Resistance
Output Voltage
kΩ
l
l
Output Low, I
= –1.6mA
= 160µA
0.4
4.8
0.5
V
V
OUT
Output High, I
3.5
OUT
l
l
Output Short-Circuit Current
Sourcing Current, V
= V
–10
15
–30
25
mA
mA
OUT
CC
Sinking Current, V
= 0V
OUT
l
l
l
l
Output Leakage Current
Supply Current
Shutdown (Note 2), 0V ≤ V
(Note 5)
≤ V , V = 0V
1
2
1
10
5
µA
mA
µA
OUT
CC IN
Supply Leakage Current
ON/OFF Pin Current
Shutdown (Note 3)
100
80
0V ≤ V
≤ 5V
–15
µA
ON/OFF
Prop Delay (t
(t
)
)
200
300
600
600
ns
ns
PLH
PHL
Note ±: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 3: V
= 0.4V for –55°C ≤ T ≤ 100°C and V
= 0.2V for
ON/OFF
A
ON/OFF
100°C ≤ T ≤ 125°C. Does not apply to LT1039A-16 part.
Note 4: For T ≥ 100°C leakage current is 350µA max.
Note 1: Bias pin open on 18-pin version.
A
A
Note 2: V
= 5V for LT1039AM grade devices.
ON/OFF
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LT1039A/LT1039A-16
Typical perForMance characTerisTics
Driver Output Short-Circuit Current
Receiver Input Thresholds
ON/OFF Pin Thresholds
50
45
40
35
30
25
20
15
10
5
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
SINKING
INPUT HIGH
INPUT LOW
SOURCING
MINIMUM ON VOLTAGE
MINIMUM OFF VOLTAGE
0
–55
0
25
50
75 100 125
–55
0
25
50
75 100 125
–55
–25
0
25
50
75 100 125
–25
–25
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
1039A G01
1039A G02
1039A G03
Driver Output Leakage
in Shutdown
Receiver Output
Supply Current in Shutdown
Short-Circuit Current
1000
100
1000
100
60
55
50
45
40
35
30
25
20
15
10
5
SUPPLY CURRENT MEASURED
+
INTO V AND V
CC
SINKING
SOURCING
V
–30V
OUT
10
10
V
OUT
30V
1
1
0
–55 –25
0
25
50
75 100 125
–55 –25
0
25
50
75 100 125
–55
0
25
50
75 100 125
–25
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
1039A G04
1039A G05
1039A G06
ON/OFF Pin Current vs Voltage
Driver Output Swing vs Current
Output Waveforms
+
40
35
30
25
20
15
10
5
V
–0.4
–0.8
–1.2
–1.6
–2.0
RECEIVER 5V
OUTPUT
0V
10V
DRIVER
OUTPUT
0V
–10V
5V
0V
INPUT
1.2
0.8
0.4
0
1039A G09
+
–
V = 12V
V
V
2µs/DIV
–5
–10
= –12V
= 5V
CC
–
V
2
3
4
5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT CURRENT (mA)
1039A G08
R = 3k
L
0
1
INPUT VOLTAGE (V)
DRIVER OUTPUT CONNECTED TO RECEIVER INPUT
1039A G07
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For more information www.linear.com/1039
LT1039A/LT1039A-16
Typical perForMance characTerisTics
BIAS Pin Response Time
Shutdown to Driver Output
Shutdown to Receiver Output
6V
4V
2V
0V
10V
5V
6V
4V
2V
0V
OUTPUT
HIGH
RECEIVER
OUTPUT
RECEIVER 1
OUTPUT
RECEIVER
OUTPUT
0V
0V
DRIVER
OUTPUT
OUTPUT
LOW
BIAS INPUT
(THRU 25kΩ)
–5V
–10V
5V
0V
5V
0V
ON/OFF
INPUT
ON/OFF 5V
INPUT
0V
1039A G10
1039A G12
1039A G11
+
–
V
V
R
= 12V
= –12V
= 3k
V
CC
= 5V
V
= 5V
2µs/DIV
0.2µs/DIV
2ms/DIV
CC
L
pin FuncTions (Pin numbers listed are for ±ꢀ-pin device)
+
–
V , V (Pins ±, 9): Driver Supply Pins. Supply current
output pins are internally protected from ESD transients.
drops to zero in shutdown mode. Driver outputs are in a
high impedance state when V and V = 0V.
In order to insure proper functioning of the ESD protec-
+
–
+
–
tion devices, the V and V supply pins must be bypassed
with low ESR capacitors located close to thepins. 0.1µF
ceramic capacitors work well.
BIAS (Pin 2): Keeps receiver 1 on while the LT1309A is
in the shutdown mode. Leave BIAS pin open when not in
use. See Applications Information for proper use.
GND (Pin ±0): Ground Pin.
REC IN (Pins 3, 1, 7): Receiver Input Pins. Accepts
RS232 voltage levels ( 30V) and has 0.4V of hysteresis
to provide noise immunity. Input impedance is nominally
30kΩ. Receiver input pins are internally protected from
TR IN (Pins ±±, ±3, ±1): RS232 Driver Input Pins. Inputs
are TTL/CMOS compatible. Inputs should not be allowed
to float. Tie unused inputs to V .
CC
REC OUT (Pins ±2, ±4, ±6): Receiver Outputs with TTL/
CMOS Voltage Levels. Outputs are in a high impedance
state when in the shutdown mode to allow data line shar-
ing. Outputs are fully short-circuit protected to ground or
ESD transients. In order to insure proper functioning of
–
the ESD protection devices, the V and V supply pins
CC
must be bypassed with low ESR capacitors located close
to the pins. A 0.1µF ceramic capacitor works well.
V
with power on, off or in the shutdown mode.
CC
TR OUT (Pins 4, 6, ꢀ): Driver Outputs with RS232 Voltage
ON/OFF (Pin ±7): Controls the operation mode of the
LT1039A 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.
Levels. Outputs are in a high impedance state when in the
+
–
shutdown mode or when power is off (V and V = 0V)
to allow data line sharing. Outputs are fully short-circuit
–
+
protected from V + 30V to V – 30V with power on, off
or in the shutdown mode. Typical output breakdowns are
greater than 45V and higher applied voltages will not
damage the device if moderately current limited. Driver-
V
CC
(Pin ±ꢀ): 5V Power for Receivers.
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LT1039A/LT1039A-16
applicaTions inForMaTion
Sharing a Receiver Line
ThedriveroutputstageoftheLT1039Aofferssignificantly
improvedprotectionoverolderbipolarandCMOSdesigns.
In addition to current limiting, the driver output can be
externally forced to 30V with no damage or excessive
current flow.
RS232
INPUT A
LT1039A #1
RECEIVER
LT±039A Driver
RS232
INPUT B
LOGIC
OUTPUT
LT1039A #2
RECEIVER
30V
LT1039A
OUTPUT CAN
BE FORCED
EXTERNALLY
–30V
1039A AI01
LOGIC
INVERTER
ON/OFF
(CHANNEL SELECT)
INPUT
1039A AI04
The driver outputs utilize high impedance overvoltage
protection, eliminating the flow of fault currents into
supplies, as will happen with conventional diode clamp-
configurations.
Transceiver
Older RS232 Drivers and Other CMOS Drivers
LOGIC
TRANSMIT/RECEIVE
LINE
RS232
TRANSMIT/RECEIVE
LINE
LT1039A #1
DRIVER
+
V
WITH SOME DRIVERS,
EXTERNALLY APPLIED
VOLTAGE CAN FORCE
THE SUPPLIES
LT1039A #2
RECEIVER
–
V
1039A AI02
LOGIC
INVERTER
Placing the LT1039A in the shutdown mode (Pin 17 low)
puts both the driver and receiver outputs in a high imped-
ance state. This allows data line sharing and transceiver-
applications.
ON/OFF
(TRANSMIT/RECEIVE)
INPUT
1039A AI05
Sharing a Transmitter Line
The shutdown mode also drops all supply currents (V ,
CC
+
–
V , V ) to zero for power conscious systems.
LOGIC
INPUT A
LT1039A #1
DRIVER
RS232
TRANSMISSION
LINE
LOGIC
INPUT B
LT1039A #2
DRIVER
LOGIC
INVERTER
ON/OFF
(CHANNEL SELECT)
INPUT
1039A AI03
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For more information www.linear.com/1039
LT1039A/LT1039A-16
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
Driver inputs should not be allowed to float. Any unused
inputs should be tied to V .
CC
The BIAS pin is used to “keep alive” one receiver while
in the shutdown mode (all other circuitry being inactive).
This allows a system to be in shutdown and still have one
active receiver for transferring data.
logic input to V to force a definite logic level when the
CC
receiver output is in a high impedance state.
Driving CMOS Logic from a Receiver
V
CC
Keeping Alive One Receiver While in Shutdown
LOGIC
SHUTDOWN
INPUT
CMOS
LOGIC
51k*
LOGIC
OUTPUT
RS232
INPUT
LT1039A
RECEIVER
25k
*FORCES LOGIC INPUT STATE
WHEN V IS LOW
ON/OFF
INPUT
ON/OFF
17
16
2
3
BIAS
1039A AI06
ON/OFF
RS232
INPUT
LOGIC
OUTPUT
To protect against receiver input overloads in excess of
30V, a voltage clamp can be placed on the data line and
still maintain RS232 compatibility.
LT1039A
1039A AI09
Input Overvoltage Protection
It can also be used to make an RS232 compatible shut-
down control line. Driving the BIAS pin low through a
resistance of 24k to 30k keeps the receiver active. Do not
drive the BIAS pin directly from a logic output without the
series resistor. An unused BIAS pin should be left open.
1k
RECEIVER
RS232
INPUT
LOGIC
OUTPUT
30k
30V
30V
5.6k
1039A AI07
RS232 Compatible Shutdown Control Line
25k
The receiver input impedance of the LT1039A is nominally
30kΩ. For applications requiring a 5kΩ input impedance,
a 5.6k resistor can be connected from the receiver input
to ground.
17
16
2
3
BIAS
ON/OFF
RS232
SHUTDOWN
INPUT
1kΩ Impedance Matching
LT1039A
RECEIVER
RS232
1039A AI10
INPUT
LOGIC
OUTPUT
30k
5.6k
1039A AI08
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For more information www.linear.com/1039
LT1039A/LT1039A-16
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
J Package
18-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.960
(24.384)
MAX
CORNER LEADS OPTION
(4 PLCS)
.005
(0.127)
MIN
17
16
18
15
14
11
13
12
10
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
.220 – .310
(5.590 – 7.870)
.025
(0.635)
RAD TYP
.045 – .065
(1.143 – 1.650)
FULL LEAD
OPTION
3
1
2
4
5
6
7
8
9
.200
(5.080)
MAX
.300 BSC
(7.62 BSC)
.015 – .060
(0.380 – 1.520)
.008 – .018
(0.203 – 0.457)
0° – 15°
.045 – .065
(1.143 – 1.651)
.100
(2.54)
BSC
.125
(3.175)
MIN
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
.014 – .026
J18 0801
(0.360 – 0.660)
OBSOLETE PACKAGE
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For more information www.linear.com/1039
LT1039A/LT1039A-16
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
N Package
16-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-03-1510 Rev Iꢂ
.770ꢀ
(19.553ꢂ
MAX
14
12
10
9
3
15
1ꢁ
11
16
.255 .015ꢀ
(6.477 0.ꢁ31ꢂ
2
1
ꢁ
4
6
5
7
.ꢁ00 – .ꢁ25
(7.620 – 3.255ꢂ
.1ꢁ0 .005
(ꢁ.ꢁ02 0.127ꢂ
.045 – .065
(1.14ꢁ – 1.651ꢂ
.020
(0.503ꢂ
MIN
.065
(1.651ꢂ
TYP
.003 – .015
(0.20ꢁ – 0.ꢁ31ꢂ
+.0ꢁ5
–.015
.ꢁ25
.120
(ꢁ.043ꢂ
MIN
.013 .00ꢁ
(0.457 0.076ꢂ
.100
(2.54ꢂ
BSC
+0.339
3.255
(
)
–0.ꢁ31
N16 REV I 0711
NOTE:
INCHES
1. DIMENSIONS ARE
MILLIMETERS
ꢀTHESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mmꢂ
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For more information www.linear.com/1039
LT1039A/LT1039A-16
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
N Package
18-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510 Rev I)
.920ꢀ
(23.368)
MAX
18
17
16
15
14
13
12
11
10
.255 .015ꢀ
(6.477 0.381)
1
2
3
5
6
9
4
7
8
.300 – .325
(7.620 – 8.255)
.130 .005
(3.302 0.127)
.045 – .065
(1.143 – 1.651)
.020
(0.508)
MIN
.065
(1.651)
TYP
.008 – .015
(0.203 – 0.381)
+.035
–.015
.325
.120
(3.048)
MIN
.018 .003
.005
(0.127)
MIN
.100
(2.54)
BSC
+0.889
8.255
(0.457 0.076)
(
)
–0.381
N18 REV I 0711
NOTE:
INCHES
MILLIMETERS
1. DIMENSIONS ARE
ꢀTHESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
1039afb
10
For more information www.linear.com/1039
LT1039A/LT1039A-16
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
SW Package
16-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
.050 BSC .045 .005
.030 .005
TYP
.398 – .413
(10.109 – 10.490)
NOTE 4
15 14
12
10
9
N
16
N
13
11
.325 .005
.420
MIN
.394 – .419
(10.007 – 10.643)
NOTE 3
N/2
8
1
2
3
N/2
RECOMMENDED SOLDER PAD LAYOUT
2
3
5
7
1
4
6
.291 – .299
(7.391 – 7.595)
NOTE 4
.037 – .045
(0.940 – 1.143)
.093 – .104
(2.362 – 2.642)
.010 – .029
× 45°
(0.254 – 0.737)
.005
(0.127)
RAD MIN
0° – 8° TYP
.050
(1.270)
BSC
.004 – .012
.009 – .013
(0.102 – 0.305)
NOTE 3
(0.229 – 0.330)
.014 – .019
.016 – .050
(0.356 – 0.482)
TYP
(0.406 – 1.270)
NOTE:
1. DIMENSIONS IN
INCHES
(MILLIMETERS)
S16 (WIDE) 0502
2. DRAWING NOT TO SCALE
3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
1039afb
11
For more information www.linear.com/1039
LT1039A/LT1039A-16
package DescripTion
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
SW Package
18-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
.050 BSC .045 .005
.030 .005
TYP
.447 – .463
(11.354 – 11.760)
NOTE 4
N
14 13
11
15
12
10
18 17 16
N
.325 .005
.420
MIN
.394 – .419
(10.007 – 10.643)
NOTE 3
1
2
3
N/2
N/2
9
RECOMMENDED SOLDER PAD LAYOUT
.291 – .299
(7.391 – 7.595)
NOTE 4
2
3
5
7
8
1
4
6
.037 – .045
(0.940 – 1.143)
.093 – .104
(2.362 – 2.642)
.010 – .029
(0.254 – 0.737)
× 45°
.005
(0.127)
RAD MIN
0° – 8° TYP
.050
(1.270)
BSC
.004 – .012
.009 – .013
(0.102 – 0.305)
NOTE 3
(0.229 – 0.330)
.014 – .019
.016 – .050
(0.356 – 0.482)
TYP
(0.406 – 1.270)
NOTE:
1. DIMENSIONS IN
INCHES
(MILLIMETERS)
S18 (WIDE) 0502
2. DRAWING NOT TO SCALE
3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
1039afb
12
For more information www.linear.com/1039
LT1039A/LT1039A-16
revision hisTory (Revision history begins at Rev B)
REV
DATE
DESCRIPTION
PAGE NUMBER
B
12/12 Removed LT1039AI from Abs Max Ratings and Package/Order Information
Updated N and SW Package Descriptions
2
9-12
1039afb
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
13
LT1039A/LT1039A-16
Typical applicaTion
LT±±ꢀ0A (Driver/Receiver with Power Supply) Driving an LT±039A
SHUTDOWN
5V
18
17
18
17
ON/OFF
LT1039A
V
CC
V
CC
ON/OFF
LT1039A
TTL IN
RS232 OUT
RS232 OUT
TTL IN
TTL IN
RS232 OUT
RS232 OUT
TTL IN
TTL OUT
TTL OUT
TTL IN
RS232 OUT
RS232 IN
RS232 IN
RS232 IN
TTL OUT
30k
30k
30k
TTL OUT
TTL OUT
RS232 IN
RS232 IN
2
+
C
30k
30k
+
0.1µF
4
5
–
+
C
C
3
7
1
9
+
+
+
–
V
V
V
0.1µF
6
–
–
C
V
+
+
GND
16
GND
10
0.1µF
0.1µF
1039A TA03
relaTeD parTs
PART NUMBER
LTC®485
DESCRIPTION
Low Power RS485 Transceiver
5V 3 Driver/5 Receiver RS232 Transceiver
COMMENTS
Industry Standard
LT1137A
15kV ESD Protection
LT1180A/LT1181A 5V 2 Driver/2 Receiver RS232 Transceiver
Industry Standard, 0.1µF Capacitors
LTC1345
LTC1348
V.35 Transceiver
Single 5V Supply Using 0.1µF Capacitors
3.3V 3 Driver/5 Receiver RS232 Transceiver
Operates from 3.3V to 5V Supplies,
5 Receivers Active in Shutdown
LTM2882
Dual Isolated RS232 µModule Transceiver + Power
1Mbps, 10kV HBM ESD, 2500V
RMS
LTC2870/LTC2871 RS232/RS485 Multiprotocol Transceivers with Integrated Termination 20Mbps RS485 and 500kbps RS232,
26kV ESD, 3V to 5V Operation
LTC2862/LTC2863/
LTC2864/LTC2865
60V Fault Protected 3V to 5.5V RS485/RS422 Transceivers
20Mbps or 250kbps 15kV HBM ESD,
25V Common Mode Range
1039afb
LT 0213 REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
14
●
●
LINEAR TECHNOLOGY CORPORATION 2001
(408)432-1900 FAX:(408)434-0507 www.linear.com/1039
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