SP3080E 高级故障保护RS-485/RS-422收发器,具备1/8单位负载、摆率控制、±15kV ESD保护功能

The SP3080E-SP3088E family of RS-485 devices are designed for reliable, bidirectional communication on multipoint bus transmission lines. Each device contains one differential driver and one differential receiver. The SP3082E, SP3085E and SP3088E are half-duplex devices; other part numbers are full-duplex. All devices comply with TIA/EIA-485 and TIA/EIA-422 standards. Lead-free and RoHS compliant packages are available for all models. These devices are ruggedized for use in harsh operating conditions over the entire common-mode voltage range from -7V to +12V. Receivers are specially designed to fail-safe to a logic high output state if the inputs are left un-driven or shorted. All RS-485 bus-pins are protected against severe ESD events up to ±15kV (Air-Gap and Human Body Model) and up to ±8kV Contact Discharge (IEC 1000- 4-2). Drivers are protected from excess current flow caused by bus contention or output short-circuits by both an internal current limit and a thermal-overload shutdown. Devices are rated for industrial (-40 to +85oC) operating temperatures. Receivers have exceptionally high input impedance, which places only 1/8th the standard load on a shared bus. Up to 256 transceivers may coexist while preserving full signal margin. All devices operate from a single 5.0V power supply and draw negligible quiescent power. All versions except the SP3081E, SP3084E, and SP3087E may independently enable and disable their driver and receiver and enter a low power shutdown mode if both driver and receiver are disabled. All outputs maintain high impedance in shutdown or when powered-off.

技术特性
  • 全双工RS485收发器
  • +5V单电源电压工作
  • 摆率受控制的驱动器,低EMI
  • 115kbps数据速率
  • 线上开路、短路或终结故障保护的接收器
  • 1/8单位负载,允许总线上256个收发器
  • 鲁棒性的ESD规格:
    • ±15KV人体模式
    • ±15KV IEC1000-4-2气隙放电
    • ±8KV IEC1000-4-2 接触放电
  • 在控制输入上的热插拔故障保护
  • 用于过载保护的驱动短路电流限制和热关断
  • 极低的400μA静态电流
  • 1μA 关断模式
  • 工业标准封装
订购信息 Ordering Information
器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
SP3080EEN-L/TR -40 85 Active
SP3080EEN-L -40 85 前言
技术指标
电源电压Vcc(V) 5
发送器数量(Tx) 1
接收器数量(Rx) 1
双工
数据传输速率(kbps) 115
静电放电ESD(KV) 15
典型关断集成元件电路(µA) 1
接收开路故障防护
接收短路故障防护
关断
多点节点 256
功能框图 Functional Block Diagram

SP3080E 功能框图

应用技术支持与电子电路设计开发资源下载 版本信息 大小
SP3080E 数据资料DataSheet下载:pdf Rev.V2 2 页