WMSIC Electronic Components

COSINE COSMAX13488EESA

ModelCOSMAX13488EESA
PackageSOP-8
BrandCOSINE
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
COSINE COSMAX13488EESA
Type
COSINE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COSMAX13488EESA
Electronic Component
1
Package
SOP-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.111g
Electronic Component
256
Electronic Component
1
Features
Tx / Rx;;;; Low Power
Electronic Component
BM0264547328
Operating Temperature
40℃~+125℃
Operating Voltage
3V~5.5V
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.

COSMAX13488EESA 产品概述

COSMAX13488EESA 是 COSINE(科山芯创)推出的一款高可靠性、低功耗的 RS-485/RS-422 半双工收发器,采用 SOP-8 封装。器件集成了自动方向控制功能,省去外部方向控制信号线,适合点对点与多点总线系统以及热插拔、工业级通信场景。器件工作电压范围宽(3.0V~5.5V),工作温度覆盖工业级 -40°C 至 +125°C,提供完善的过流、过温与静电保护,适用于严苛环境下的现场总线设计。

一、关键特性

  • 半双工 RS-485/RS-422 收发器,1 路驱动器,1 路接收器
  • 自动方向控制(自动发送/接收切换),无需外部方向控制通道
  • 支持高达 16 Mbps 的数据速率(典型工作速率 12 Mbps)
  • 最多支持 256 个节点(增强多点能力)
  • 工作电压:3.0V ~ 5.5V,兼容 3.3V 与 5V 系统
  • 静态电流(静态功耗):典型 700 μA,支持低功耗模式
  • ESD 保护等级:±15 kV(人体模型)
  • 工作温度:-40°C ~ +125°C(工业级)
  • 封装:SOP-8

二、保护与可靠性功能

  • 自动方向控制:内部智能判别发送与接收状态,自动控制驱动器使能,简化上层 MCU 的控制逻辑,降低外部 IO 占用与设计复杂度。
  • 热插拔保护:设计支持带电插拔场景,有效减少现场更换模块时对总线的冲击。
  • 热关断保护:当芯片内部温度超过安全阈值时自动关断输出,防止器件热失效。
  • 使能关断(EN):外部使能管脚可将芯片置入低功耗或断开驱动输出,便于系统电源管理。
  • 过流保护(短路保护):在驱动输出遇短路或超载时限制电流,保护器件与总线免受损坏。
  • Tx/Rx 启用控制:支持分别使能发射器或接收器,便于灵活的通讯管理和省电控制。

三、电气与性能摘要

  • 数据速率:高达 16 Mbps(典型/应用建议速率 12 Mbps),满足高速现场总线需求
  • 供电范围:3.0V~5.5V,适配不同逻辑电平与供电平台
  • 静态电流:700 μA(典型),低功耗模式进一步降低待机功耗
  • 节点容量:支持最多 256 个节点,适合大规模多点网络
  • ESD 抗扰:±15 kV(IEC/人体模型),增强现场防静电性能

四、典型应用场景

  • 工业现场总线(如 MODBUS、DNP3 等)与多点数据采集系统
  • 楼宇自动化、照明控制与环境监测网络
  • 远程电表与能源管理系统(AMI/PLC 网关)
  • 仪器仪表、数据记录器与工控通信接口
  • 需要热插拔、现场维护与高可靠性的通信模块

五、设计与使用建议

  • 电源去耦:在 VCC 引脚旁尽量靠近放置 0.1 μF 陶瓷去耦电容,抑制瞬态干扰,保证驱动稳定性。
  • 总线终端:在总线两端配置匹配终端电阻(通常 120 Ω),以减少信号反射;对于长线或高速应用,注意选择合适阻值并考虑差分阻抗匹配。
  • 偏置网络:若需可靠的总线空闲电平(fail-safe),可在设计中保留终端偏置(上拉/下拉)或使用器件自带的故障保护特性。
  • 布局注意:差分对线尽量走对称、等长走线,远离高速开关电源和大电流回路,以降低共模干扰。
  • 保护措施:尽管器件具有较强 ESD 能力,外部浪涌保护(如 TVS 二极管)仍有助于提高系统抗冲击能力,特别是长距离电缆应用。
  • 功耗管理:利用器件的使能关断与低功耗模式,在通信空闲或电源受限情况下降低系统整体功耗。

六、封装与订购信息

  • 封装形式:SOP-8,易于通用 PCB 布局与 DIP 转接模块化应用
  • 工业级温度范围(-40°C 至 +125°C)适合严苛环境部署
  • 建议在 BOM 中标注完整型号 COSMAX13488EESA,并与厂商确认供货与技术支持

总结:COSMAX13488EESA 将自动方向控制与多重保护机制集成于小型 SOP-8 封装之中,兼顾高速通讯(高达 16 Mbps)与工业级可靠性,适用于对节点数、热插拔与现场可靠性有较高要求的 RS-485/RS-422 总线系统。在系统设计中配合合理的终端、偏置与保护方案,可获得稳定可靠的长距离数据链路。若需更详细的引脚定义、时序图或典型应用电路,请参考 COSINE 官方数据手册或联系技术支持。

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