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PDF LTC1383CS Data sheet ( Hoja de datos )
| Número de pieza | LTC1383CS | |
| Descripción | 5V Low Power RS232 Transceiver | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s Operates from a Single 5V Supply
s Low Supply Current: ICC = 220µA
s ESD Protection Over ±10kV
s Available in 16-Pin SOIC Narrow Package
s Uses Small Capacitors: 0.1µF
s Operates to 120kBaud
s Output Overvoltage Does Not Force Current
Back into Supplies
s RS232 I/O Lines Can Be Forced to ±25V
Without Damage
s Pin Compatible with LT1181A and MAX232A
APPLICATI S
s Notebook Computers
s Palmtop Computers
LTC1383
5V Low Power
RS232 Transceiver
DESCRIPTIO
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 (ICC) of the
transceiver is only 220µA with driver outputs unloaded.
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.
TYPICAL APPLICATI
0.1µF
0.1µF
LOGIC INPUT
LOGIC INPUT
LOGIC OUTPUT
1
3
4 LTC1383
5 VCC
300k
11
VCC
300k
10
12
5k
LOGIC OUTPUT
9
5k
16 VCC = 5V
2
6
0.1µF
0.1µF
14
232 OUTPUT
7
232 OUTPUT
13
232 INPUT
8
232 INPUT
15
LTC1383 • TA01
Quiescent Supply Current vs Temperature
600
TEST CONDITION: VCC = 5V
500
400
QUIESCENT
300 CURRENT
200
100
0
–20
0 20 40 60
TEMPERATURE (°C)
80
LTC1383 • TA02
1
1 page  
UW
W
SWITCHI G TI E WAVEFOR S
LTC1383
DRIVER
INPUT
1.4V
DRIVER
OUTPUT
t LHD
0V
1.4V
t HLD
VCC
0V
V+
0V
V–
LTC1383 • F01
Figure 1. Driver Propagation Delay Timing
RX
INPUT
1.7V
RX
OUTPUT
t LHR
0.8V
VCC
1.3V
0V
t HLR
2.4V VCC
0V
LTC1383 • F02
Figure 2. Receiver Propagation Delay Timing
TEST CIRCUITS
Driver Timing Test Load
DRIVER
INPUT
DRIVER
DRIVER
OUTPUT
51pF 3k
LTC1383 • TA03
Receiver Timing Test Load
RX INPUT
RX
RX
OUTPUT
51pF
LTC1383 • TA04
ESD Test Circuit
0.1µF
0.1µF
LOGIC INPUT
LOGIC INPUT
LOGIC OUTPUT
1
3
4 LTC1383
5 VCC
300k
11
VCC
300k
10
12
5k
LOGIC OUTPUT
9
5k
16 VCC
2
6
0.1µF
0.1µF
14
232 OUTPUT
7 232 OUTPUT RS232
LINE PINS
13
232 INPUT
PROTECTED
TO ±10kV
8
232 INPUT
15
LTC1383 • TA05
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LTC1383CS.PDF ] | |
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