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CTM8251AT是YLPTEC(易川) 推出的一款带电气隔离的CAN总线收发器,专为解决CAN通信系统中的共地干扰、浪涌冲击及电磁兼容问题设计。该器件集成CAN收发功能与隔离防护于一体,可实现微控制器(MCU)与CAN总线之间的安全、高速数据交互,广泛适配工业自动化、汽车电子、智能楼宇等对通信可靠性要求较高的场景。
CTM8251AT的核心参数覆盖通信性能、隔离特性、电源适配及封装形式,具体如下:
CTM8251AT内置隔离层,可实现CAN总线与MCU端的电气隔离,避免因不同设备地电位差导致的信号串扰、甚至器件损坏。针对工业现场常见的浪涌、静电干扰,隔离设计可显著提升系统稳定性。
支持最大1Mbps数据速率,同时具备总线信号整形功能,可有效抑制总线反射,保证长距离传输下的信号完整性。对于高速CAN网络(如汽车动力系统、工业机器人通信),该特性可满足实时数据交互需求。
4.75V~5.25V的工作电压范围,兼容不同品牌MCU的5V电源输出,无需额外设计电压转换电路;32mA的典型静态电流,在待机或低负载状态下可降低系统功耗,适合对功耗敏感的嵌入式场景。
内置总线错误检测(如总线短路、开路检测)、热关断保护(器件过热时自动切断输出),可防止总线故障或异常工况对收发器及MCU造成损坏,提升产品使用寿命。
CTM8251AT的隔离特性与高速通信能力,使其适用于以下场景:
CTM8251AT作为一款高性价比隔离式CAN收发器,兼具隔离防护、高速通信、宽电压适配等核心优势,搭配DIP-7直插封装的易用性,可快速集成到各类CAN通信系统中。其在工业、汽车、医疗等领域的可靠性验证,使其成为需要提升CAN总线抗干扰能力场景的优选器件。
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