WMSIC Electronic Components

HGSEMI HGX3485EIDQ/TR HGX3485EIDQ

ModelHGX3485EIDQ/TR
PackageDFN-8-EP(3x3)
BrandHGSEMI
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
HGSEMI HGX3485EIDQ / TR
Type
HGSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
HGX3485EIDQ/TR
Electronic Component
1
Package
DFN-8-EP(3x3)
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.178g
Electronic Component
256
Electronic Component
1
Features
Tx / Rx;;;; Low Power
Electronic Component
BM0265070244
Operating Temperature
40℃~+85℃
Operating Voltage
3V~3.6V
Receiver
1
Data
12Mbps

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

HGX3485EIDQ/TR 产品概述

一、产品简介

HGX3485EIDQ/TR 是华冠 (HGSEMI) 面向工业通信设计的一款 3.3V 供电半双工 RS-485/RS-422 收发器。芯片集成一路驱动器和一路接收器,支持高达 12 Mbps 的数据速率,链路最多可挂接 256 个节点,工作温度范围 -40℃ 至 +85℃,适用于严苛环境下的长线差分数据传输。器件封装为 DFN-8-EP(3x3),适合高密度电路板设计与散热需求。

二、主要性能特点

  • 供电电压:3.0V ~ 3.6V,典型工作电压 3.3V。
  • 通讯模式:半双工差分通信,兼容 RS-485 与 RS-422 应用。
  • 高速传输:支持最高 12 Mbps 数据速率,适合短中距离高速链路。
  • 多节点支持:总线上可连接至多 256 节点,便于大规模分布式系统部署。
  • 可靠保护:内置热关断保护、过流保护与使能关断功能,提高系统安全性。
  • 低功耗设计:具备低功耗模式,降低系统待机能耗。
  • 输入/输出控制:提供 Tx/Rx 启用控制,引脚可独立使能驱动或接收,便于总线仲裁与电源管理。
  • 静电防护:对外端口提供 ±15 kV 静电防护能力,提高生产与现场鲁棒性。
  • 宽温工作:-40℃ ~ +85℃ 工作温度等级,适合工业级应用。

三、典型电气参数(概要)

  • 驱动器数/接收器数:1/1。
  • 数据速率:高达 12 Mbps(基于线缆长度与拓扑可能下降)。
  • 供电范围:3.0 V 至 3.6 V。
  • 节点数:最高支持 256 节点。
  • ESD 抗扰:±15 kV。
  • 工作温度:-40℃ 至 +85℃。
  • 封装:DFN-8-EP(3x3)。

四、封装与引脚(简述)

DFN-8-EP(3x3) 小尺寸封装利于高密度布线与焊接可靠性。芯片带有外露散热焊盘(EP),建议在 PCB 设计时在底层加铺铜并过孔连接,提高散热和接地性能。常用引脚包括差分 A/B、RE/DE 或单使能控制引脚、电源 VCC 与地 GND、以及接收器输出 RO 和驱动器输入 DI。

五、典型应用场景

  • 工业现场总线:PLC 与远端 I/O、工业以太网旁路设备的串行扩展。
  • 楼宇自动化:楼宇控制器与传感器、门禁、照明控制等长线通信。
  • 能源与仪表:电能表采集、配电自动化、变电站遥测设备。
  • 机械控制与运动控制:伺服、步进驱动器与控制系统之间的高速命令与反馈链路。
  • 医疗与安防:需要高可靠差分通信的设备互联场景。

六、设计与使用注意事项

  • 总线拓扑与终端:在长线高速应用下应在总线两端加 120Ω 终端电阻,且避免重复终端导致反射。
  • 偏置与失效安全:建议在一端或主控处提供偏置电阻(Pull-up/Pull-down)以保证空闲态总线稳定。
  • 抗干扰措施:在工业环境下配合 TVS 二极管、共模电感和差分滤波可提高抗扰性。
  • 电源去耦:VCC 端靠近芯片放置 0.1 μF 与 1 μF 去耦电容,保证瞬态响应。
  • 过流保护:合理配置总线驱动占空与仲裁机制,避免长时间短路造成触发过流保护。
  • 温度管理:若工作在高功耗场景,注意 PCB 散热设计并使用外露焊盘改善热路径。

七、选型与支持

HGX3485EIDQ/TR 提供卷带/托盘等常用包装形式,适合贴片生产。若需样片、评估板或详细数据手册(电气特性曲线、典型应用电路、引脚排列图),请联系华冠官方技术支持或当地授权代理,获取最新版规范与设计参考资料。

以上为 HGX3485EIDQ/TR 的产品概述,若需进一步的引脚定义、电气特性表或参考设计原理图,我可以根据具体需求提供更详尽的资料。

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