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LTC2877HMSE#PBF PDF预览

LTC2877HMSE#PBF

更新时间： 2024-11-09 19:57:27
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
32页 1613K
描述
LTC2877 - ±60V Rugged PROFIBUS RS485 Transceivers; Package: MSOP; Pins: 10; Temperature Range: -40°C to 125°C

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中文翻译

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LTC2877HMSE#PBF 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：MSOP针数：10
Reach Compliance Code：compliant风险等级：2.18
Base Number Matches：1

LTC2877HMSE#PBF 数据手册

 浏览型号LTC2877HMSE#PBF的Datasheet PDF文件第2页浏览型号LTC2877HMSE#PBF的Datasheet PDF文件第3页浏览型号LTC2877HMSE#PBF的Datasheet PDF文件第4页浏览型号LTC2877HMSE#PBF的Datasheet PDF文件第5页浏览型号LTC2877HMSE#PBF的Datasheet PDF文件第6页浏览型号LTC2877HMSE#PBF的Datasheet PDF文件第7页 
LTC2876/LTC2877  
±±60V RuugeVꢀ ꢁOFIBUV  
 U485VTranscgivgrs  
FeaTures  
DescripTion  
The LTC®2876 and LTC2877 are PROFIBUS RS485  
transceivers designed to meet the test specifications for  
PROFIBUS-DP masters and PROFIBUS-DP slaves, fully  
compatible with IEC 61158-2, type 3: medium attachment  
unit (MAU). With operation up to 20Mbps, the LTC2876/  
LTC2877supportsallPROFIBUSdataratesupto12Mbps.  
n
PROFIBUS IEC 61158-2 Compliant  
Protected from Overvoltage Line Faults to 6ꢀ0  
52ꢁ0 ESꢂ Interface Pinsꢃ 15ꢁ0 All Otꢄer Pins  
2ꢁ0 ꢅLevel ꢆ4 IEC61ꢀꢀꢀ-ꢆ-ꢆ Fast Transient Burst  
250 ꢇorꢁing Common Mode Range  
2ꢀMbps Maximum Baud Rate  
1.650 to 5.50 Logic Supply Pin for Flexible ꢂigital  
Interfacing ꢅLTC28774  
5V Supply Can Operate Down to 3V for Low Power,  
Low Swing Applications  
Fully Balanced Differential Receiver Thresholds with  
240mV Hysteresis for Superior Noise Tolerance and  
Low Duty Cycle Distortion  
Receiver Failsafe for Open, Shorted and Terminated  
Conditions  
n
n
n
n
n
n
TheLTC2876andLTC2877areexceptionallyrobust,toler-  
ating 60V faults on the bus pins and protected to 52kV  
ESD. These devices are suitable for harsh environments  
or where 24V power might be inadvertently connected.  
Extended 25V input common mode range and full fail-  
safe operation improve data communication reliability in  
noisy systems.  
n
n
n
The LTC2876 and LTC2877 meet PROFIBUS and RS485  
specifications with a supply voltage of 4.5V to 5.5V but  
can operate down to 3V with reduced supply current.  
n
n
Wide Operating Temperature Range: –40°C to 125°C  
Available in Small DFN and MSOP Packages  
Product Selection Guide  
PART NUMBER  
LTC2876  
LOGIC SUPPLY PIN  
PACKAGE  
applicaTions  
NO  
DFN-8, MSOP-8  
DFN-10, MSOP-10  
n
LTC2877  
YES  
PROFIBUS-DP  
Industrial Communication Networks  
RS485 and RS422 Systems  
n
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.  
n
n
3V Low Voltage Differential Signaling  
Typical applicaTion  
Eye ꢂiagram of 12Mbps Signal at  
1.8V  
5V  
tꢄe Near and Far End of a 1ꢀꢀm  
5V  
PROFIBUS Cable ꢂriven by tꢄe  
LTC2877 Using 28–1 PRBS Pattern  
0.1µF  
1µF  
V
L
V
CC  
LTC2877  
390Ω  
220Ω  
390Ω  
390Ω  
PROFIBUS  
CABLE  
PB–PA  
RO  
NEAR END  
2V/DIV  
PB  
PB  
B´  
RE  
µC  
220Ω  
PA  
SENSOR  
DI  
A´  
PA  
Z
= 150Ω  
O
B´– A´  
2V/DIV  
FAR END  
20ns/DIV  
390Ω  
DE  
GND  
28767 TA01b  
28767 TA01a  
28767fa  
1
For more information www.linear.com/LTC2876  
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中文翻译

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