WMSIC Electronic Components

ElecSuper SP3485EN-L/TR SP3485EN

ModelSP3485EN-L/TR
PackageSOP-8
BrandElec Super
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

19 specifications

Core information

Product name
Elec Super SP3485EN-L / TR
Type
ELECSUPER
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
SP3485EN-L/TR
Electronic Component
1
Package
SOP-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.174g
Electronic Component
256
Electronic Component
1
Features
Tx / Rx;;; Low Power
Electronic Component
BM0228788627
Operating Temperature
40℃~+125℃
Operating Voltage
3V~5.5V
Receiver
1
Data
14Mbps

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

SP3485EN-L/TR 产品概述

一、产品简介

SP3485EN-L/TR 是 ElecSuper(静芯微)推出的一款低功耗、抗静电能力强的半双工差分收发器,针对工业现场总线和长距离差分通信设计。器件工作电压范围宽(3.0 V ~ 5.5 V),在 3.3 V 系统中可实现最低功耗和最佳性能。器件在工业级温度范围(-40 ℃ 至 +125 ℃)内稳定工作,并采用 SOP-8 封装,便于 PCB 布局与自动贴装。

二、主要性能特点

  • 工作电压:3.0 V ~ 5.5 V,适配 3.3 V/5 V 系统
  • 数据速率:最高 14 Mbps(半双工)
  • 通讯模式:半双工,单个驱动器与单个接收器(1Driver / 1Receiver)
  • 总线负载能力:支持多达 256 节点/负载,便于大规模布网
  • 静态/待机电流:典型 240 μA(低功耗设计,利于能源受限系统)
  • 静电保护:端到端 ±15 kV(IEC61000-4-2 等级别 ESD 抗扰度),提高现场可靠性
  • 工作温度范围:-40 ℃ ~ +125 ℃(工业级)
  • 封装:SOP-8,适用于自动化贴片与常规散热要求

此外,器件对差分总线信号(A/B)和逻辑控制引脚(如 DI、DE/RE、RO)提供完整的收发功能接口,便于与 MCU/FPGA 集成。

三、典型应用场景

  • 工业自动化总线(PLC、现场仪表互联)
  • 楼宇与安防控制网络(门禁、监控传输)
  • 电梯与楼宇控制系统、照明控制系统
  • 仪器仪表与数据采集(SCADA、能源管理)
  • POS、楼宇自控与电机控制等需要长距离差分半双工通信的场合

四、设计与使用建议

  • 总线终端阻抗匹配:在通信链路两端建议采用 120 Ω 差分终端电阻以抑制反射;长总线或高数据率环境下应注意阻抗连续性。
  • 偏置与公共模式:若系统中存在多节点空闲状态,建议在网络中设置偏置电阻(fail-safe 处理)或采用主控器输出偏置,确保空闲时差分输出处于确定电平。
  • 电源与去耦:器件为低功耗特点,但在高速数据切换时仍需在 VCC 旁并联 0.1 μF 陶瓷去耦电容,靠近器件引脚放置以抑制瞬态噪声。
  • ESD 与浪涌防护:器件集成 ±15 kV ESD 防护,提高了装配与现场抗扰性,但在有强烈浪涌或直击雷风险的环境,应配合外部保护器件(如 TVS)进行系统级防护。
  • 布线与接地:差分对 A/B 尽量走等长线路,避免与高频电源线并行;稳固的地平面能够降低共模噪声。

五、封装与订购信息

  • 品牌:ElecSuper(静芯微)
  • 型号:SP3485EN-L/TR
  • 封装:SOP-8(便于自动贴装,适合工业批量生产)
  • 包装方式:TR 指带卷盘(Tape & Reel)包装,适合贴片机上料与大批量生产

六、质量与支持

SP3485EN-L/TR 针对工业环境设计,通过宽温验证与 ESD 抗扰度优化,适合需要高可靠性的差分总线应用。工程师在评估系统时如需器件详细电气参数表、典型应用电路或样片支持,可联系 ElecSuper(静芯微)渠道获取完整数据手册与技术支持。

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