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LT1785ACN8-TR PDF预览

LT1785ACN8-TR

更新时间： 2024-01-29 23:51:33
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 195K
描述
60V Fault Protected RS485/RS422 Transceivers

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中文翻译

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LT1785ACN8-TR 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Transferred零件包装代码：DIP
包装说明：DIP,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.04
Is Samacsys：N差分输出：YES
驱动器位数：1输入特性：DIFFERENTIAL SCHMITT TRIGGER
接口集成电路类型：LINE TRANSCEIVER接口标准：EIA-422; EIA-485
JESD-30 代码：R-PDIP-T8JESD-609代码：e3
功能数量：1端子数量：8
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：250认证状态：Not Qualified
最大接收延迟：900 ns接收器位数：1
座面最大高度：3.937 mm最大供电电压：5.25 V
最小供电电压：4.75 V标称供电电压：5 V
表面贴装：NO技术：BIPOLAR
温度等级：COMMERCIAL端子面层：MATTE TIN
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
最大传输延迟：2000 ns宽度：7.62 mm
Base Number Matches：1

LT1785ACN8-TR 数据手册

 浏览型号LT1785ACN8-TR的Datasheet PDF文件第2页浏览型号LT1785ACN8-TR的Datasheet PDF文件第3页浏览型号LT1785ACN8-TR的Datasheet PDF文件第4页浏览型号LT1785ACN8-TR的Datasheet PDF文件第5页浏览型号LT1785ACN8-TR的Datasheet PDF文件第6页浏览型号LT1785ACN8-TR的Datasheet PDF文件第7页 
LT1785/LT1785A/  
LT1791/LT1791A  
60V Fault Protected  
RS485/RS422 Transceivers  
FEATURES  
DESCRIPTION  
TheLT®1785/LT1791arehalf-duplexandfull-duplexdiffer-  
ential bus transceivers for RS485 and RS422 applications  
which feature on-chip protection from overvoltage faults  
on the data transmission lines. Receiver input and driver  
output pins can withstand voltage faults up to ±±60 with  
respect to ground with no damage to the device. Faults  
may occur while the transceiver is active, shut down or  
powered off.  
n
Protected from Overvoltage Line Faults to ±±0ꢀ  
n
Pin Compatible with LTC485 and LTC491  
n
High Input Impedance Supports Up to 128 Nodes  
No Damage or Latchup to ESD  
n
IEC-1666-4-2 Level 4: ±15k0 Air Discharge  
IEC-1666-4-2 Level 2: ±4k0 Contact Discharge  
n
Controlled Slew Rates for EMI Emissions Control  
n
Guaranteed High Receiver Output State for Floating,  
Shorted or Inactive Inputs  
Data rates to 256kbaud on networks of up to 128 nodes  
are supported. Controlled slew rates on the driver out-  
putscontrol EMI emissions and improve data transmis-  
sion integrity on improperly terminated lines. Drivers are  
specified to operate with inexpensive cables as low as  
72Ω characteristic impedance.  
n
Outputs Assume a High Impedance When Off or  
Powered Down  
n
Drives Low Cost, Low Impedance Cables  
n
Short-Circuit Protection on All Outputs  
n
Thermal Shutdown Protection  
Guaranteed Operation to 125°C  
n
The LT1785A/LT1791A devices have “fail-safe” receiver  
inputstoguaranteeareceiveroutputhighforshorted,open  
or inactive data lines. On-chip ESD protection eliminates  
need for external protection devices.  
APPLICATIONS  
n
Industrial Control Data Networks  
n
CAN Bus Applications  
The LT1785/LT1785A are available in 8-lead DIP and SO  
packages and the LT1791/LT1791A in 14-lead DIP and  
SO packages.  
n
H0AC Controls  
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Normal Operation Waveforms at 250kBaud  
0
CC1  
RO1  
RX  
RO  
RE1  
R
TERM  
LT1785  
DE1  
DI1  
TX  
Y-Z  
GND1  
DI  
0
CC2  
RO2  
RX  
RE2  
R
TERM  
LT1785  
178591 TA62  
DE2  
DI2  
TX  
GND2  
178591 TA61  
178491fb  
1
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中文翻译

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