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LT1039A

更新时间： 2023-12-20 18:45:44
品牌 Logo 应用领域
亚德诺 - ADI 驱动驱动器
页数 文件大小 规格书
14页 1700K
描述
具停机功能的三通道 RS232 驱动器 / 接收器

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中文翻译

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LT1039A 数据手册

 浏览型号LT1039A的Datasheet PDF文件第2页浏览型号LT1039A的Datasheet PDF文件第3页浏览型号LT1039A的Datasheet PDF文件第4页浏览型号LT1039A的Datasheet PDF文件第5页浏览型号LT1039A的Datasheet PDF文件第6页浏览型号LT1039A的Datasheet PDF文件第7页 
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  
1039afb  
1
For more information www.linear.com/1039  
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