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SN74LVC1G17QDRYRQ1是德州仪器(TI)推出的74LVC系列单通道施密特触发器缓冲器,采用推挽输出结构,专为信号整形、电平兼容及高速驱动场景设计。产品以超小封装、宽电压范围、低功耗及强抗干扰能力为核心优势,适配汽车电子、便携式设备、工业控制等多领域需求。
该器件为1元件、1位单向缓冲器,采用非反向输出逻辑(输入与输出电平一致),核心功能基于施密特触发器实现——通过内置滞回特性,对输入信号的上升沿/下降沿进行整形,可有效抑制输入信号中的噪声、抖动或缓慢变化(如模拟转数字信号的过渡),输出清晰稳定的数字电平。
其通道类型为单向,仅支持信号从输入到输出的传输;推挽输出结构确保输出电平完整性(高电平接近电源电压,低电平接近地),无需额外上拉/下拉电阻。
产品电气性能覆盖宽电压、强驱动、低功耗等核心需求,关键参数如下:
工作电压范围:1.65V ~ 5.5V
兼容低功耗系统(如1.8V便携式设备)、通用3.3V/5V系统,可实现不同电平域的信号兼容(如3.3V输出适配5V输入设备)。
驱动能力:灌电流(IOL)32mA、拉电流(IOH)32mA
具备较强负载驱动能力,可直接驱动LED、小型继电器线圈或低阻抗负载,无需额外驱动电路。
静态功耗:静态电流(Iq)20μA(典型值)
低静态电流设计适合电池供电的便携式设备(如智能手环、蓝牙耳机),有效延长电池续航。
传播延迟:8ns(@3.3V电源、50pF负载)
高速响应满足高速数字信号传输需求(如数据总线、时钟信号缓冲),避免时序延迟问题。
施密特输入特性:内置滞回电压(典型值:上升沿1.6V、下降沿[email protected])
对噪声信号抗干扰能力显著,输入信号存在±0.4V噪声波动时仍能输出稳定电平。
封装规格:SON-6(1mm×1.5mm,引脚间距0.65mm)
超小型封装节省PCB空间,适合高密度布局(如智能手机主板、汽车ECU模块),支持自动贴装(SMT)工艺,降低生产难度。
工作温度范围:-40℃ ~ +125℃(汽车级AEC-Q100认证)
宽温特性适应极端环境(如汽车发动机舱、户外工业传感器),满足汽车电子、工业控制的可靠性要求。
SN74LVC1G17QDRYRQ1适配多场景需求,典型应用包括:
该器件凭借以上特性,成为需要信号调理、电平兼容及小型化设计场景的优选方案。
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