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MAXLINEAR SP481EEN-L/TR SP481EEN
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- MAXLINEAR SP481EEN-L / TR
- Type
- MAXLINEAR
- Unit
- Electronic Component
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- MAXLINEAR
- Electronic Component
- SP481EEN-L/TR
- Electronic Component
- 1
- Package
- SOP-8
- Type
- Transceiver
- Electronic Component
- RS-485 / RS-422IC
- Electronic Component
- 0.26g
- Electronic Component
- 1
- Features
- Tx / Rx;; Low Power
- Electronic Component
- BM0000515133
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 4.75V~5.25V
- Receiver
- 1
- Data
- 10Mbps
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SP481EEN-L/TR 产品概述
一、产品简介
SP481EEN-L/TR 是一款由 MAXLINEAR（迈凌）提供的半双工差分收发器（IC TRANSCEIVER HALF 1/1），适用于工业现场总线与点对点差分通信。器件工作在单一 5V 电源（4.75V～5.25V），在宽温度范围（-40℃ 至 +85℃）下可靠工作，满足工业级应用需求。
二、主要技术参数
- 通讯模式：半双工（1 路驱动器 / 1 路接收器）
- 工作电压：4.75V ～ 5.25V
- 数据速率：最高 10 Mbps
- 静态电流：约 900 μA（待机/静态条件）
- 工作温度：-40℃ ~ +85℃
- 封装：SOP-8
- 静电保护：可达 ±15 kV（对抗静电放电事件）
三、关键特性与优势
- 高速传输能力（10 Mbps），适合短距高速差分通信场合。
- 低静态电流（约 900 μA），利于降低系统待机功耗。
- 宽温度范围与良好静电防护，适合工业、楼宇控制和仪表等恶劣环境。
- SOP-8 直插/贴片封装，易于 PCB 布局与批量生产组装。
- 半双工架构适用于多点总线、主/从通信拓扑，驱动器/接收器资源配比合理（1/1）。
四、典型应用场景
- 工业现场总线（如 RS‑485 类差分总线）节点通讯
- 楼宇自动化、安防通讯模块
- 智能仪表、数据采集终端（高抗扰动环境）
- 串行设备网络、PLC 扩展模块等需要差分收发的场合
五、设计与使用建议
- 总线终端：对长距离或需要阻抗匹配的线路，建议在总线两端并接 120 Ω 终端电阻以降低反射。
- 空闲态保证：若设备可能出现总线悬空，应在器件输入端使用上/下拉或外部失效保护电路，确保稳定的空闲电平。
- ESD 与浪涌保护：器件本身具备较强静电保护，但在高干扰环境下仍推荐外加 TVS 二极管和共模扼流圈以提高系统可靠性。
- 方向控制：半双工收发器通常需要方向控制管脚（DE/RE），在多节点网络中注意软件/硬件配合以避免总线冲突。
- 电源与地：为保证高速性能和抗扰度，建议在电源与地之间加旁路电容并采用良好接地实践。
六、封装与订购提示
SP481EEN-L/TR 的 SOP-8 封装适合自动贴装与手工调试，“/TR” 后缀常表示卷带（tape-and-reel）包装，便于 SMT 贴片生产。选型与下单时，请务必核对原厂完整数据手册以获得详细的电气特性、引脚定义和时序图，并确认是否满足系统的共模电压、失效保护及 EMC 要求。
备注：本文基于器件的关键规格给出应用与设计建议，最终设计请参考 MAXLINEAR 原厂 datasheet 及应用笔记以获得完整规范与测试条件。
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