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LT1785IS8#PBF PDF预览

LT1785IS8#PBF

更新时间： 2024-02-09 11:17:57
品牌 Logo 应用领域
凌特 - Linear PC驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
18页 263K
描述
LT1785 - 60V Fault Protected RS485/RS422 Transceivers; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LT1785IS8#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：2.82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-PDSO-G8JESD-609代码：e3
长度：4.9 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
最小输出摆幅：1.5 V最大输出低电流：0.0016 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：5 V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：1.75 mm子类别：Line Driver or Receivers
最大压摆率：9 mA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：YES技术：BIPOLAR
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
最大传输延迟：2000 ns宽度：3.9 mm
Base Number Matches：1

LT1785IS8#PBF 数据手册

 浏览型号LT1785IS8#PBF的Datasheet PDF文件第2页浏览型号LT1785IS8#PBF的Datasheet PDF文件第3页浏览型号LT1785IS8#PBF的Datasheet PDF文件第4页浏览型号LT1785IS8#PBF的Datasheet PDF文件第5页浏览型号LT1785IS8#PBF的Datasheet PDF文件第6页浏览型号LT1785IS8#PBF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
n
IEC-1666-4-2 Level 4: ±15k0 Air Discharge  
n
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 (LT1785A/LT1791A)  
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  
n
Guaranteed Operation to 125°C  
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, LTM, µModule, Linear Technology and the Linear logo are registered trademarks of  
Linear Technology Corporation. All other trademarks are the property of their respective owners.  
Typical applicaTion  
Normal Operation Waveforms at 250kBaud  
V
CC1  
RO1  
RX  
RO  
RE1  
R
TERM  
LT1785  
DE1  
DI1  
TX  
Y-Z  
GND1  
DI  
V
CC2  
R
RO2  
RX  
RE2  
LT1785  
178591 TA02  
TERM  
DE2  
DI2  
TX  
GND2  
178591 TA01  
178591fd  
1
For more information www.linear.com/LT1785  
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