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MAX3430

更新时间： 2024-09-30 14:58:19
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亚德诺 - ADI /
页数 文件大小 规格书
13页 238K
描述
±80V故障保护、失效保护、1/4单元负载、+3.3V、RS-485收发器

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中文翻译

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MAX3430 数据手册

 浏览型号MAX3430的Datasheet PDF文件第2页浏览型号MAX3430的Datasheet PDF文件第3页浏览型号MAX3430的Datasheet PDF文件第4页浏览型号MAX3430的Datasheet PDF文件第5页浏览型号MAX3430的Datasheet PDF文件第6页浏览型号MAX3430的Datasheet PDF文件第7页 
19-2756; Rev 1; 4/03  
±±0ꢀ Faultꢁ-rotected, FailꢁSafe,  
1/4ꢁUnit Load, +3.3ꢀ RSꢁ4±5 Transceiver  
General Description  
Features  
The MAX3430 fault-protected RS-485 transceiver features  
80V protection from overvoltage signal faults on commu-  
nication bus lines. Each device contains one driver and  
one receiver, and the output pins can withstand faults,  
with respect to ground, of up to 80V. Even if the faults  
occur when the transceiver is active, shut down, or pow-  
ered off, the device will not be damaged. The MAX3430  
operates from a 3.3V supply and features a slew-rate-lim-  
ited driver that minimizes EMI and reduces reflections  
caused by improperly terminated cables, allowing error-  
free data transmission at data rates up to 250kbps. The  
MAX3430 has a 1/4-unit-load receiver input impedance  
allowing up to 128 transceivers on a single bus and fea-  
tures fail-safe circuitry, which guarantees a logic-high  
receiver output when the receiver inputs are open.  
ꢀ ±±80V FaulVꢀPrltelꢁro  
ꢀ ±ꢂ120VꢃESVꢀPrltelꢁro  
ꢀ +3.30VOptPFlꢁro  
ꢀ IoltPoFuVEutw-RFltVLꢁmꢁlꢁog  
ꢀ 1582bpsVSFlFVRFlt  
ꢀ AuurwsVUpVlrVꢂ1±VTPFosetꢁvtPsVroVlhtVBas  
ꢀ -70VlrV+ꢂ10VCrmmro-MrdtVIopalV0rulFgtVRFogt  
ꢀ TPatV Fꢁu-EFftVIopals  
ꢀ Hrl-EwFpVIopalVElPaelaPtVroVSꢃ  
ꢀ AvFꢁuFbutVꢁoV±-ꢀꢁoVEOVFodVꢀSIꢀVꢀFe2Fgts  
Hot-swap circuitry eliminates false transitions on the  
data cable during circuit initialization or connection to a  
live backplane. Short-circuit current limiting and ther-  
mal-shutdown circuitry protect the driver against exces-  
sive power dissipation.  
Ordering Information  
The MAX3430 is available in 8-pin SO and 8-pin PDIP  
packages, and is specified over commercial and indus-  
trial temperature ranges.  
ꢀART  
MAX3430CPA  
MAX3430CSA  
MAX3430EPA  
MAX3430ESA  
TꢃMꢀVRANGꢃ  
0°C to +70°C  
ꢀIN-ꢀACKAGꢃ  
8 Plastic DIP  
8 SO  
0°C to +70°C  
Applications  
RS-422/RS-485 Communications  
-40°C to +85°C  
-40°C to +85°C  
8 Plastic DIP  
8 SO  
Lighting Systems  
Industrial-Control Local Area Networks  
Profibus Applications  
Multimaster RS-485 Networks  
-in Configuration and Typical Operating Circuit  
TOP VIEW  
DE  
V
CC  
0.1µF  
MAX3430  
RO  
RE  
DE  
DI  
R
1
2
3
4
V
CC  
8
7
6
5
1
8
R
RO  
RE  
DE  
DI  
D
DI  
B
B
A
2
3
7
6
5
B
Rt  
Rt  
A
A
4
RO  
R
D
D
GND  
GND  
RE  
SIꢀ/EO  
________________________________________________________________ Maxim Integrated Products  
ꢂ
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...13

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