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LTC1337CG PDF预览

LTC1337CG

更新时间： 2024-01-14 20:10:49
品牌 Logo 应用领域
凌特 - Linear 驱动器接口集成电路光电二极管
页数 文件大小 规格书
8页 235K
描述
5V Low Power RS232 3-Driver/5-Receiver Transceiver

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中文翻译

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LTC1337CG 数据手册

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LTC1337  
5V Low Power RS232  
3-Driver/5-Receiver Transceiver  
U
DESCRIPTIO  
EATURE  
Low Supply Current: 300µA  
1µA Supply Current in SHUTDOWN  
ESD Protection: Over ±10kV  
Operates from a Single 5V Supply  
Uses Small Capacitors: 0.1µF  
Operates to 120k Baud  
Three-State Outputs Are High Impedance When Off  
Output Overvoltage Does Not Force Current Back into  
Supplies  
RS232 I/O Lines Can Be Forced to ±25V without  
Damage  
Pin Compatible with LT1137A and LT1237  
Flowthrough Architecture  
S
F
■
■
■
■
■
■
■
■
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 300µA. The charge pump only  
requires four 0.1µF 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 1µA. 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//3kΩ load. Both  
driver outputs and receiver inputs can be forced to ±25V  
without damage, and can survive multiple ±10kV ESD  
strikes.  
■
■
■
O U  
PPLICATI  
Notebook Computers  
Palmtop Computers  
S
A
■
■
U
O
TYPICAL APPLICATI  
3-Drivers/5-Receivers with SHUTDOWN  
Supply Current  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
600  
500  
400  
300  
200  
100  
0
–
+
V
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
V
V
LTC1337  
C1  
0.1µF  
C4  
0.1µF  
CC  
C3  
0.1µF  
3
C2  
0.1µF  
4
DRIVER 1 IN  
RX1 OUT  
DRIVER 2 IN  
RX2 OUT  
RX3 OUT  
RX4 OUT  
DRIVER 3 IN  
RX5 OUT  
GND  
QUIESCENT  
CURRENT  
5
DRIVER 1 OUT  
RX1 IN  
6
7
DRIVER 2 OUT  
RX2 IN  
8
SHUTDOWN  
CURRENT  
9
RX3 IN  
10  
11  
12  
13  
14  
RX4 IN  
DRIVER 3 OUT  
RX5 IN  
0
20  
40  
60  
80  
–20  
TEMPERATURE (°C)  
ON/OFF  
TEST CONDITION:  
= 5V, ALL DRIVER INPUTS TIED TO V  
V
CC  
CC  
1337 TA01  
1337 TA02  
1
12345678

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