WMSIC Electronic Components

MAXLINEAR SP211EEA-L/TR SP211EEA

ModelSP211EEA-L/TR
PackageSSOP-28-208mil
BrandMAXLINEAR
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

20 specifications

Core information

Product name
MAXLINEAR SP211EEA-L / TR
Type
MAXLINEAR
Unit
Electronic Component
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MAXLINEAR
Electronic Component
SP211EEA-L/TR
Electronic Component
1
Package
SSOP-28-208mil
Type
Transceiver
Electronic Component
RS232IC
Electronic Component
0.22g
Electronic Component
1
Electronic Component
BM0000515170
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~5.5V
Receiver
5
Data
120Kbps
Static Current
3mA

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

SP211EEA-L/TR 产品概述

一、核心参数概览

SP211EEA-L/TR 是一款面向工业级差分总线的收发器器件(Full transceiver),适用于多节点通信系统。主要参数如下:

  • 工作温度:-40℃ ~ +85℃
  • 工作电压:4.5V ~ 5.5V
  • 数据速率:120 kbps
  • 驱动器数量:4 路
  • 接收器数量:5 路
  • 内置电荷泵:有
  • 静态电流(静态工作电流):约 3 mA
  • 静电保护:±15 kV(器件具有高抗静电能力)
  • 封装:SSOP-28-208mil
  • 器件类型:全功能收发器(4/5 配置)

二、主要特性与优势

SP211EEA-L/TR 针对低速到中速工业通信场景优化设计,主要优势包括:

  • 多通道集成:4 路驱动、5 路接收,节省 PCB 占位并简化多路总线设计。
  • 宽电源范围:4.5–5.5V 兼容常见 5V 系统,提升系统兼容性。
  • 低静态功耗:典型静态电流约 3 mA,有利于功耗受限应用或长期在线设备。
  • 内置电荷泵:提高驱动能力或为总线偏置提供所需电压,改善总线驱动性能(具体电荷泵行为请参阅器件数据手册)。
  • 高可靠性抗扰度:器件具备高达 ±15 kV 的静电抑制能力,有利于工业环境安装与维护。

三、典型应用场景

该器件适合用于需要多通道差分通信或多节点监控的场合,包括但不限于:

  • 工业自动化与现场总线接口(示例:RS-485/RS-422 类差分总线拓扑)
  • 楼宇自动化、安防及门禁系统
  • 智能电表、能源管理与远程抄表终端
  • 可编程逻辑控制器(PLC)扩展模块与数据采集单元
  • 需要多路收发器的控制与监测板卡

四、电气与热性能注意事项

  • 供电与去耦:在 VCC 端应靠近器件放置 0.1 μF 陶瓷去耦电容,并根据电荷泵或驱动需求增加 1 μF~10 μF 旁路电容以稳定电源。
  • 总线保护:尽管器件本身具备高静电保护能力,但在恶劣环境和长线应用中仍建议在差分对和电源线上增加合适的 TVS 二极管或共模抑制器以提高抗浪涌和雷击抗扰度。
  • 散热与温度:器件额定工作温度为 -40℃ 至 +85℃,在高密度布局或长时间满负荷驱动情况下注意评估 PCB 散热路径,避免热累积影响可靠性。
  • 通信速率限制:器件标称数据速率为 120 kbps,适合低速工业协议;高频应用需选用更高带宽的收发器。

五、设计与布局建议

  • 差分线对布线应保持长度匹配并控制阻抗,减少反射与串扰。
  • 驱动端建议在每对差分线上使用终端电阻匹配总线阻抗(例如 120 Ω),并在多节点总线上按需要使用偏置网络以确保空闲总线的稳定电平。
  • 将电源去耦和电荷泵相关电容靠近器件引脚放置,缩短回流路径。
  • 对监测或故障诊断通道(额外的 1 路接收)可用于总线监听或冗余检测,提高系统可维护性。

六、封装与采购信息

SP211EEA-L/TR 提供 SSOP-28-208mil 封装,便于中密度 PCB 布局与自动贴装。采购时注意核对封装尺寸代码与温度等级,建议索取器件数据手册和器件物料清单(BOM)中的制造商/分销商证书以保证来源可靠。

七、总结

SP211EEA-L/TR 是一款面向工业级多通道差分通信的高可靠收发器,具有多路驱动/接收、内部电荷泵、低静态功耗与高抗静电能力。适用于多节点、长线及对可靠性要求高的控制与监测系统。欲获得完整电气特性、引脚定义与典型应用电路,请参考制造商的正式数据手册并在量产前进行系统级验证。

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