LTC1383CS [Linear]
5V Low Power RS232 Transceiver; 5V低功耗RS232收发器
| 型号： | LTC1383CS |
| 厂家： | 
Linear |
| 描述： | 5V Low Power RS232 Transceiver |
| 文件： | 总8页 (文件大小：214K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LTC1383
5V Low Power
RS232 Transceiver
U
DESCRIPTIO
EATURE
S
F
■
■
■
■
■
■
■
Operates from a Single 5V Supply
Low Supply Current: ICC = 220µA
ESD Protection Over ±10kV
Available in 16-Pin SOIC Narrow Package
Uses Small Capacitors: 0.1µF
Operates to 120kBaud
Output Overvoltage Does Not Force Current
Back into Supplies
RS232 I/O Lines Can Be Forced to ±25V
Without Damage
The LTC1383 is an ultra-low power 2-driver/2-receiver
RS232 transceiver that operates from a single 5V
supply. The charge pump requires only four space-
saving 0.1µF capacitors. The supply current (I ) of the
CC
transceiverisonly220µAwithdriveroutputsunloaded.
The LTC1383 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120kbaud with a 2500pF, 3kΩ load. Both
driver outputs and receiver inputs can be forced to
±25V without damage and can survive multiple ±10kV
ESD strikes.
■
■
Pin Compatible with LT1181A and MAX232A
O U
PPLICATI
S
A
■
Notebook Computers
Palmtop Computers
■
U
O
TYPICAL APPLICATI
Quiescent Supply Current vs Temperature
1
16
2
V
CC
= 5V
0.1µF
3
600
TEST CONDITION: V = 5V
CC
LTC1383
4
0.1µF
6
500
400
300
200
100
0
0.1µF
0.1µF
5
V
CC
300k
300k
11
14
LOGIC INPUT
232 OUTPUT
QUIESCENT
CURRENT
V
CC
10
12
7
LOGIC INPUT
232 OUTPUT
232 INPUT
13
LOGIC OUTPUT
5k
9
8
–20
20
40
60
80
LOGIC OUTPUT
232 INPUT
0
5k
TEMPERATURE (°C)
15
LTC1383 • TA02
LTC1383 • TA01
1
LTC1383
W W W
U
/O
ABSOLUTE AXI U RATI GS
PACKAGE RDER I FOR ATIO
Supply Voltage (VCC) ................................................ 6V
Input Voltage
Driver ....................................... –0.3V to VCC + 0.3V
Receiver ............................................... – 25V to 25V
Digital Input............................... –0.3V to VCC + 0.3V
Output Voltage
Driver .................................................... – 25V to 25V
Receiver .................................... – 0.3V to VCC + 0.3V
Short-Circuit Duration
ORDER PART
TOP VIEW
NUMBER
+
1
2
3
4
5
6
7
8
V
CC
16
15
14
13
12
11
10
9
C1
V
+
–
+
–
–
GND
LTC1383CN
LTC1383CS
TR1 OUT
RX1 IN
RX1 OUT
TR1 IN
TR2 IN
RX2 OUT
C1
C2
C2
V
TR2 OUT
RX2 IN
V+ ................................................................... 30 sec
V– ................................................................... 30 sec
Driver Output.............................................. Indefinite
Receiver Output.......................................... Indefinite
Operating Temperature Range .................... 0°C to 70°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
N PACKAGE
S PACKAGE
16-LEAD NARROW
PLASTIC SOIC
16-LEAD PLASTIC DIP
TJMAX = 125°C, θJA = 65°C/W (N)
TJMAX = 125°C, θJA = 95°C/W (S)
Consult factory for Industrial and Military grade products.
DC ELECTRICAL CHARACTERISTICS VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Any Driver
Output Voltage Swing
3k to GND
Positive
Negative
●
●
5.0
–5.0
7.0
– 6.5
V
V
Logic Input Voltage Level
Logic Input Current
Input Low Level (V
Input High Level (V
= High)
= Low)
●
●
1.4
1.4
0.8
V
V
µA
µA
OUT
2.0
0.8
OUT
V
IN
V
IN
= V
= 0V
●
●
5
–40
CC
–20
±12
Output Short-Circuit Current
Any Receiver
Input Voltage Thresholds
V
OUT
= 0V
mA
Input Low Threshold
Input High Threshold
●
●
1.3
1.7
0.4
5
0.2
3.2
V
V
V
kΩ
V
V
2.4
1
7
Hysteresis
Input Resistance
Output Voltage
●
0.1
3
–10V ≤ V ≤ 10V
IN
Output Low, I
Output High, I
= – 1.6mA (V = 5V)
= 160µA (V = 5V)
●
●
0.4
OUT
CC
3.0
OUT
CC
Output Short-Circuit Current
Sinking Current, V
Sourcing Current V
= V
–15
10
–40
20
mA
mA
OUT
CC
= 0V
OUT
Power Supply Generator
+
V Output Voltage
I
I
I
I
= 0mA
= 8mA
= 0mA
8.0
7.5
–8.0
–7.0
V
V
V
V
OUT
OUT
–
V Output Voltage
OUT
OUT
= –8mA
2
LTC1383
DC ELECTRICAL CHARACTERISTICS VCC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Supply
V
Supply Current
No Load (Note 2)
●
●
●
0.22
1.4
1.4
0.5
0.8
mA
V
V
CC
Digital Input Threshold Low
Digital Input Threshold High
2.0
AC CHARACTERISTICS
PARAMETER
V
CC = 5V, C1 = C2 = C3 = C4 = 0.1µF, unless otherwise noted.
CONDITIONS
MIN
TYP
MAX
UNITS
Slew Rate
R = 3k, C = 51pF
8
5
30
V/µs
V/µs
L
L
R = 3k, C = 2500pF
3
L
L
Driver Propagation Delay
(TTL to RS232)
t
t
(Figure 1)
(Figure 1)
●
●
2
2
3.5
3.5
µs
µs
HLD
LHD
Receiver Propagation Delay
(RS232 to TTL)
t
t
(Figure 2)
(Figure 2)
●
●
0.3
0.3
0.8
0.8
µs
µs
HLR
LHR
The
●
denotes specifications which apply over the operating temperature
Note 2: Supply current is measured with driver and receiver outputs
unloaded.
range of 0°C ≤ T ≤ 70°C.
A
Note 1: Absolute maximum ratings are those values beyond which the life
of the device may be impaired.
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
Receiver Input Thresholds
vs Temperature
Driver Output Voltage
vs Temperature
Supply Current vs Data Rate
2.2
2.0
1.8
1.6
10
8
45
40
35
30
25
20
15
10
5
R
= 3k
OUTPUT HIGH
V
= 5V
L
CC
R
= 3k
V
= 5V
L
L
CC
C
= 2500pF
6
2 DRIVERS ACTIVE
V
TH
V
= 4.5V
CC
4
2
0
V
TL
–2
–4
–6
1.4
1.2
1.0
OUTPUT LOW
V
= 4.5V
CC
V
= 5V
CC
–8
0
40
TEMPERATURE (˚C)
60
70
0
10
20
30
50
0
10
20
30
70
40
50
60
0
25
50
75
150 175
100 125
TEMPERATURE (°C)
DATA RATE (kBAUD)
LTC1383 • TPC02
LTC1383 • TPC01
LTC1383 • TPC03
3
LTC1383
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
VCC Supply Current
vs Temperature
Driver Output Waveforms
Receiver Output Waveforms
18
16
14
12
10
8
DRIVER
OUTPUT
R
L = 3k
RECEIVER
OUTPUT
C
L = 2500pF
C
L = 51pF
DRIVER
OUTPUT
2 DRIVERS LOADED
= 3k
R
R
L = 3k
L
INPUT
1 DRIVER LOADED
INPUT
6
R
= 3k
L
4
LTC1383 • TPC05
LTC1383 • TPC06
2
0
0
10
20
30
60
70
40
50
TEMPERATURE (°C)
LTC1383 • TPC04
U
U
U
PI FU CTIO S
VCC: 5V Input Supply Pin. This pin should be decoupled
with a 0.1µF ceramic capacitor.
charge pump efficiency, the capacitor’s effective series
resistance should be less than 2Ω.
GND: Ground Pin.
V+: Positive Supply Output (RS232 Drivers). V+ 2VCC
TR IN: RS232 Driver Input Pins. Inputs are TTL/CMOS
compatible. The inputs of unused drivers can be left
unconnected since 300k input pull-up resistors to VCC are
included on chip.
–
2V. This pin requires an external capacitor C = 0.1µF for
charge storage. The capacitor may be tied to ground or
VCC. With multiple devices, the V + and V– pins may share
a common capacitor. For large numbers of devices, in-
creasing the size of the shared common storage capaci-
tors is recommended to reduce ripple.
V–:NegativeSupplyOutput(RS232Drivers).V – –(2VCC
– 2V). This pin requires an external capacitor C = 0.1µF for
charge storage.
TR OUT: Driver Outputs at RS232 Voltage Levels. The
driver outputs are protected against ESD to ±10kV for
human body model discharges.
RX IN: Receiver Inputs. These pins can be forced to ±25V
withoutdamage. Thereceiverinputsareprotectedagainst
ESD to ±10kV for human body model discharges. Each
receiver provides 0.4V of hysteresis for noise immunity.
C1+,C1–,C2+,C2–:CommutatingCapacitorInputs.These
pins require two external capacitors C = 0.1µF: one from
C1+ to C1– and another from C2+ to C2–. To maintain
RX OUT: Receiver Outputs with TTL/CMOS Voltage
Levels.
4
LTC1383
U
W
W
SWITCHI G TI E WAVEFOR S
V
V
CC
CC
1.7V
RX
DRIVER
1.3V
1.4V
INPUT
1.4V
INPUT
0V
V
0V
+
V
CC
RX
OUTPUT
DRIVER
OUTPUT
2.4V
0V
0V
0.8V
–
V
0V
t
t
t
t
LHR
LHD
HLR
HLD
LTC1383 • F02
LTC1383 • F01
Figure 1. Driver Propagation Delay Timing
Figure 2. Receiver Propagation Delay Timing
TEST CIRCUITS
Receiver Timing Test Load
Driver Timing Test Load
DRIVER
OUTPUT
RX
OUTPUT
DRIVER
INPUT
RX INPUT
DRIVER
RX
51pF
51pF
3k
LTC1383 • TA04
LTC1383 • TA03
ESD Test Circuit
1
3
4
5
16
2
V
CC
0.1µF
LTC1383
0.1µF
6
0.1µF
0.1µF
V
V
CC
300k
300k
11
14
LOGIC INPUT
232 OUTPUT
CC
10
12
7
RS232
LOGIC INPUT
232 OUTPUT
232 INPUT
LINE PINS
PROTECTED
TO ±10kV
13
LOGIC OUTPUT
5k
9
8
LOGIC OUTPUT
232 INPUT
5k
15
LTC1383 • TA05
5
LTC1383
TYPICAL APPLICATIONS N
U
Paralleling Power Supply Generator
with Common Storage Capacitors
1
3
4
5
16
2
1
3
4
5
16
2
V
= 5V
V
= 5V
CC
CC
0.1µF
0.1µF
0.1µF
0.1µF
LTC1383
LTC1383
0.1µF
6
6
0.1µF
V
V
V
V
CC
CC
300k
300k
11
14
11
14
LOGIC INPUT
232 OUTPUT
LOGIC INPUT
232 OUTPUT
CC
CC
300k
300k
10
12
7
10
12
7
LOGIC INPUT
232 OUTPUT
232 INPUT
LOGIC INPUT
232 OUTPUT
232 INPUT
13
13
LOGIC OUTPUT
LOGIC OUTPUT
5k
5k
5k
9
8
9
8
LOGIC OUTPUT
232 INPUT
LOGIC OUTPUT
232 INPUT
5k
15
15
LTC1383 • TA06
U
PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
N Package
16-Lead Plastic DIP
0.770
(19.558)
MAX
14
12
10
9
8
15
13
11
16
0.260 ± 0.010
(6.604 ± 0.254)
2
1
3
4
6
5
7
0.300 – 0.325
0.130 ± 0.005
0.045 – 0.065
(7.620 – 8.255)
(3.302 ± 0.127)
(1.143 – 1.651)
0.015
(0.381)
MIN
0.065
(1.651)
TYP
0.009 – 0.015
(0.229 – 0.381)
+0.025
–0.015
0.325
0.125
(3.175)
MIN
0.045 ± 0.015
(1.143 ± 0.381)
0.018 ± 0.003
(0.457 ± 0.076)
+0.635
8.255
(
)
–0.381
0.100 ± 0.010
(2.540 ± 0.254)
N16 0492
6
LTC1383
U
PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
S Package
16-Lead Plastic SOIC
0.386 – 0.394*
(9.804 – 10.008)
16
15
14
13
12
11
10
9
0.150 – 0.157*
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
5
7
8
1
2
3
4
6
0.010 – 0.020
(0.254 – 0.508)
× 45°
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.008 – 0.010
(0.203 – 0.254)
0° – 8° TYP
0.050
(1.270)
TYP
0.014 – 0.019
(0.355 – 0.483)
0.016 – 0.050
0.406 – 1.270
SO16 0893
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006 INCH (0.15mm).
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-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
7
LTC1383
U.S. Area Sales Offices
SOUTHWEST REGION
Linear Technology Corporation
22141 Ventura Blvd.
SOUTHEAST REGION
Linear Technology Corporation
17060 Dallas Parkway
Suite 208
Dallas, TX 75248
Phone: (214) 733-3071
FAX: (214) 380-5138
NORTHEAST REGION
Linear Technology Corporation
One Oxford Valley
2300 E. Lincoln Hwy.,Suite 306
Langhorne, PA 19047
Phone: (215) 757-8578
FAX: (215) 757-5631
Suite 206
Woodland Hills, CA 91364
Phone: (818) 703-0835
FAX: (818) 703-0517
NORTHWEST REGION
Linear Technology Corporation
782 Sycamore Dr.
CENTRAL REGION
Linear Technology Corporation
Chesapeake Square
Linear Technology Corporation
266 Lowell St., Suite B-8
Wilmington, MA 01887
Milpitas, CA 95035
Phone: (408) 428-2050
FAX: (408) 432-6331
229 Mitchell Court, Suite A-25
Addison, IL 60101
Phone: (708) 620-6910
FAX: (708) 620-6977
Phone: (508) 658-3881
FAX: (508) 658-2701
International Sales Offices
KOREA
FRANCE
Linear Technology Korea Branch
Namsong Building, #505
Itaewon-Dong 260-199
Yongsan-Ku, Seoul
Korea
Linear Technology S.A.R.L.
Immeuble "Le Quartz"
58 Chemin de la Justice
92290 Chatenay Malabry
France
TAIWAN
Linear Technology Corporation
Rm. 801, No. 46, Sec. 2
Chung Shan N. Rd.
Taipei, Taiwan, R.O.C.
Phone: 886-2-521-7575
FAX: 886-2-562-2285
Phone: 82-2-792-1617
FAX: 82-2-792-1619
Phone: 33-1-41079555
FAX: 33-1-46314613
SINGAPORE
GERMANY
UNITED KINGDOM
Linear Technology Pte. Ltd.
101 Boon Keng Road
#02-15 Kallang Ind. Estates
Singapore 1233
Linear Techonolgy GmbH
Untere Hauptstr. 9
D-85386 Eching
Linear Technology (UK) Ltd.
The Coliseum, Riverside Way
Camberley, Surrey GU15 3YL
United Kingdom
Germany
Phone: 65-293-5322
FAX: 65-292-0398
Phone: 49-89-3197410
FAX: 49-89-3194821
Phone: 44-276-677676
FAX: 44-276-64851
JAPAN
Linear Technology KK
5F YZ Bldg.
4-4-12 Iidabashi, Chiyoda-Ku
Tokyo, 102 Japan
Phone: 81-3-3237-7891
FAX: 81-3-3237-8010
World Headquarters
Linear Technology Corporation
1630 McCarthy Blvd.
Milpitas, CA 95035-7487
Phone: (408) 432-1900
FAX: (408) 434-0507
0294
LT/GP 0594 10K • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
8
●
●
LINEAR TECHNOLOGY CORPORATION 1994
(408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977
相关型号：
LTC1383CS#PBF
LTC1383 - 5V Low Power RS232 Transceiver; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C
Linear
LTC1383CS#TR
LTC1383 - 5V Low Power RS232 Transceiver; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C
Linear
LTC1383CS#TRPBF
LTC1383 - 5V Low Power RS232 Transceiver; Package: SO; Pins: 16; Temperature Range: 0°C to 70°C
Linear
LTC1383IN#PBF
LTC1383 - 5V Low Power RS232 Transceiver; Package: PDIP; Pins: 16; Temperature Range: -40°C to 85°C
Linear
LTC1383IS#TRPBF
LTC1383 - 5V Low Power RS232 Transceiver; Package: SO; Pins: 16; Temperature Range: -40°C to 85°C
Linear
LTC1384CG#TRPBF
LTC1384 - 5V Low Power RS232 Transceiver with 2 Receivers Active in Shutdown; Package: SSOP; Pins: 20; Temperature Range: 0°C to 70°C
Linear
©2020 ICPDF网 联系我们和版权申明