WMSIC Electronic Components

YLPTEC TDA51S485HC

ModelTDA51S485HC
PackageSOIC-16
BrandYLPTEC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

15 specifications

Core information

Product name
YLPTEC TDA51S485HC
Type
YLPTEC
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YLPTEC
Electronic Component
TDA51S485HC
Electronic Component
1
Package
SOIC-16
Electronic Component
Isolated RS485 / 422Transceiver
Electronic Component
0.523g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0264335035
Electronic Component
Electronic Component
Electronic Component
1000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

TDA51S485HC 产品概述

一、主要功能与特性

TDA51S485HC 是为 RS-485 总线网络专门设计的一款隔离型半双工增强型收发器,品牌为 YLPTEC(易川),封装为 SOIC-16。器件完全符合 TIA/EIA-485-A 标准,支持半双工差分通信,并集成失效保护电路,能有效应对现场常见的故障条件,提升系统可靠性。

二、性能亮点

  • 隔离设计:器件具备高绝缘能力,可在总线与本地系统之间建立可靠隔离,阻止噪声、浪涌或接地回路电位差通过总线传入敏感电路,从而保护下游器件与控制系统。
  • 抗扰度高:TDA51S485HC 在电磁干扰和辐射环境下表现优异,适合工业级恶劣电磁环境。
  • 大容量总线:接收器采用 1/8 单元负载设计,单线可容纳最多 256 个节点单元,满足大规模多节点网络需求。
  • 传输速率:支持最高 500 kbps 的总线速率,适配多数常见工业和楼宇控制应用。
  • 失效保护:内置失效保护电路,可降低因短路、过流或静电放电等异常造成的器件损坏风险,提升系统持久运行能力。

三、典型应用场景

  • 工业自动化现场总线(PLC 与远端 I/O、现场仪表互联)
  • 楼宇自动化与安防控制系统(门禁、照明、空调控制)
  • 能源与逆变器系统(光伏逆变器及电池监控)
  • 仪器仪表与数据采集系统(远程传感器网络)
  • 交通与轨道控制通信网络

四、系统集成与设计建议

  • 终端匹配:在总线末端使用适当阻抗的终端电阻以减少反射,终端与偏置配置应根据具体拓扑调整。
  • 隔离布置:保持隔离区的爬电距离和走线间距,确保隔离有效性;在隔离两侧分别配置去耦电容和稳压电源以减小干扰。
  • 防浪涌与防静电:建议在总线线对处并联浪涌抑制器或 TVS 器件,同时在 PCB 布局中保留 ESD 放电路径,以配合内部失效保护实现更高可靠性。
  • 地线管理:避免在隔离侧跨越大电流回路,确保本地地与总线隔离地分别良好处理,减少共模干扰注入。
  • 布线与终端节点数量:虽然器件支持多达 256 个节点单元,实系统设计应考虑节点功耗、线缆特性及拓扑(点对点、分支)对信号完整性的影响。

五、封装与选型信息

TDA51S485HC 提供 SOIC-16 封装,便于标准 PCB 工艺直接安装。选型时建议确认系统对隔离等级、最大传输速率和总线节点数的实际需求,并与 YLPTEC(易川) 的技术资料配合验证环境耐受能力与测试规范。

六、小结

TDA51S485HC 面向工业与楼宇级 RS-485 网络,结合高绝缘、良好电磁抗扰性与失效保护电路,既能满足大规模多节点通信的带宽与兼容性要求,也能在复杂电磁与电源干扰环境中保护本地系统不受总线异常影响,是需要可靠隔离与强抗扰能力场合的理想收发器选择。若需详细电气参数、保护等级和参考电路图,请参考厂商数据手册或联系 YLPTEC(易川) 技术支持获取完整资料。

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