參數(shù)資料
型號(hào)： LTC1337CS
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 通用總線功能
英文描述： 5V Low Power RS232 3-Driver/5-Receiver Transceiver
中文描述： LINE TRANSCEIVER, PDSO28
封裝： SOIC-28
文件頁(yè)數(shù)： 1/8頁(yè)
文件大小： 233K
代理商： LTC1337CS
1
LTC1337
5V Low Power RS232
3-Driver/5-Receiver Transceiver
S
FEATURE
D
The LTC1337 is a 3-driver/5-receiver RS232 transceiver
with very low supply current. In the no load condition, the
supply current is only 300
μ
A. The charge pump only
requires four 0.1
μ
F capacitors and can supply up to 12mA
of extra current to power external circuitry.
In SHUTDOWN mode, the supply current is further re-
duced to 1
μ
A. All RS232 outputs assume a high imped-
ance state in SHUTDOWN and with the power off.
The LTC1337 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120k baud with a 1000pF//3k
load. Both
driver outputs and receiver inputs can be forced to
±
25V
without damage, and can survive multiple
±
10kV ESD
strikes.
U
ESCRIPTIO
I
Low Supply Current: 300
μ
A
I
1
μ
A Supply Current in SHUTDOWN
I
ESD Protection: Over
±
10kV
I
Operates from a Single 5V Supply
I
Uses Small Capacitors: 0.1
μ
F
I
Operates to 120k Baud
I
Three-State Outputs Are High Impedance When Off
I
Output Overvoltage Does Not Force Current Back into
Supplies
I
RS232 I/O Lines Can Be Forced to
±
25V without
Damage
I
Pin Compatible with LT1137A and LT1237
I
Flowthrough Architecture
U
S
A
O
PPLICATI
I
Notebook Computers
I
Palmtop Computers
U
A
O
PPLICATI
TYPICAL
3-Drivers/5-Receivers with SHUTDOWN
Supply Current
1337 TA01
V
CC
C1
0.1
μ
F
LTC1337
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DRIVER 1 OUT
RX1 IN
DRIVER 2 OUT
RX2 IN
RX3 IN
RX4 IN
DRIVER 3 OUT
RX5 IN
ON/OFF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C3
0.1
μ
F
DRIVER 1 IN
RX1 OUT
DRIVER 2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DRIVER 3 IN
RX5 OUT
GND
V
–
V
+
C2
0.1
μ
F
C4
0.1
μ
F
TEMPERATURE (°C)
Q
μ
A
600
500
400
300
200
100
0
20
40
60
1337 TA02
80
0
–20
1.2
1.0
0.8
0.6
0.4
0.2
0
S
μ
A
QUIESCENT
CURRENT
SHUTDOWN
CURRENT
TEST CONDITION:
V
CC
= 5V, ALL DRIVER INPUTS TIED TO V
CC
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