【产品】数据传输速率14Mbps的半双工RS485收发器,电压范围3.0V~5.5V,ESD 15KV HBM
优恩半导体UN3088E是一款3.0V~5.5V宽电源供电、总线端口ESD保护能力HBM达到15KV以上、总线耐压范围达到±15V、半双工、低功耗,功能完全满足TIA/EIA-485标准要求的RS-485收发器。
UN3088E包括一个驱动器和一个接收器,两者均可独立使能与关闭。当两者均禁用时,驱动器与接收器均输出高阻态。UN3088E具有1/8单位负载,允许256 个UN3088E 收发器并接在同一通信总线上。该芯片可实现高达14Mbps的无差错数据传输。工作电压范围为 3.0~5.5 V,具备失效安全(fail-safe)、过温保护、限流保护、 过压保护等功能。
图1 产品外形和引脚分布图
UN3088E RS485收发器设计用于多点总线传输线上的双向数据通信。图2显示了典型网络应用电路。这些器件也能用作电缆长于4000英尺的线性转发器,为减小反射,应当在传输线两端以其特性阻抗进行终端匹配,主干线以外的分支连线长度应尽可能短。
图2 典型的 RS485 半双工通讯网络
产品特点:
●3.0V~5.5V宽电源范围,半双工;
●1/8单位负载,允许最多256个器件连接到总线;
●驱动器短路输出保护;
●过温保护功能;
●低功耗关断功能;
●总线容错耐压达到±15V;
●接收器开路失效保护;
●具有较强的抗噪能力;
●集成的瞬变电压抵制功能;
●在电噪声环境中的数据传输速率可达到14Mbps;
●总线端口ESD保护能力HBM达到15KV以上;
应用领域:
●点对点、点对多点通讯;
●工业控制自动化;
●安防系统;
●智能仪表;
●道路交通控制自动化;
●楼宇自控系统;
●景光照明控制系统;
●电平转换器;
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本文由闯天涯转载自优恩半导体,原文标题为:3.0V~5.5V 供电,ESD 15KV HBM,14Mbps 半双工 RS485/RS422 收发器,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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目录- 企业简介和产品概览 静电保护器(ESD) 瞬态抑制二极管(TVS) 半导体放电管(TSS) 双向触发二极管(SIDAC) 压敏电阻(MOV) 陶瓷气体放电管(GDT) 玻璃气体放电管(SPG) 微型防雷模组(MLPM) 自恢复保险丝(PPTC) RS485/422收发器 CAN收发器 网口RJ45连接器 分立功率器件 EMI保护元器件
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我司多个项目上用到RS485 之前用的是MAX13487EESA,请帮忙找个国产替代,要求非隔离型的,谢谢!
您好,推荐您看看科山芯创最新推出的COS13487EESA,PTP对标MAX13487EESA
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数据网关上用到一个非隔离型RS4865,替代MAX13487EESA MAX13488EESA ,要求国产,请帮忙推荐,谢谢!
您好,推荐科山芯创的COS13487EESA,pin to pin 替代MAX13487,数据手册链接:https://www.sekorm.com/doc/528158311.html
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一个家电产品旧项目,收发器用到了MAX13487EESA+芯片,+5V供电、半双工、具有±15kV ESD保护的RS-485/RS-422兼容,目前需要选型替代,优先考虑PTP,功能替代也可以考虑,望推荐!
您好,推荐科山芯创的COS13487EESA,pin to pin 替代MAX13487,数据手册链接:https://www.sekorm.com/doc/528158311.html
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整体外形尺寸小至0.6*0.3*0.3mm (DFN0603),工作电压范围覆盖2.5V~36V,电容值低至0.2pF,浪涌能力最高可达240安培,静电等级可达空气放电、接触放电±30KV。提供免费浪涌测试仪、静电测试仪测试。
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可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
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