【应用】芯科传感范围可达50厘米的有源近距离传感器SI1102-A-GMR用于全屋智能温控器设备,小尺寸封装可节省空间
全屋智能温控器设备通常安装于室内墙壁,通过温湿度传感器测量数据,主控对接收到的信号进行处理,处理后的信号在显示屏上显示,并且可以通过按键输入设置温度调节。室内温控器有些采用市电供电,有部分采用电池供电,无论是那种供电模式都要考虑低功耗设计,控制面板如果一直处于工作状态功耗就高,此时就要考虑加入接近唤醒机制,当有人体接近时才唤醒,平时处于待机低功耗。
本文介绍芯科的SI1102-A-GMR在温控器设备上的应用,SI1102-A-GMR是一款高性能有源近距离传感器,传感范围0-50cm,且可以通过芯片外部引脚进行配置阈值门限和频率,可以更好的实现接近检测。产品项目框图如下:
SI1102-A-GMR由一个光电二极管和一个带LED驱动器和光接收器的信号处理IC组成,接近检测基于对频闪、光学隔离LED反射光的测量。待机状态下典型的10μA电流消耗和工作状态下1mA的超低功耗能使温控器设备减少不必要功耗,特别是电池产品。
SI1102-A-GMR产品特征:
■高性能近距离探测器,传感范围可达50厘米
■低系统功率的单脉冲传感模式
■可调检测阈值和选通频率
■2~5.25 V工作电源
■工作温度范围:–40至+85℃
■典型的10μA电流消耗和1 mA的超低功率
■电流驱动(400 mA)或饱和LED驱动器输出
■小封装:3x3毫米(ODFN)
综上所述,基于SI1102-A-GMR的低功耗和阈值可调特性,传感范围可达50厘米,工作电源电压2~5.25V,可广泛使用于全屋智能温控器设备等低功耗产品的接近检测传感,实现高精度低功耗设计。
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
【产品】灵敏度达1 μW/cm²光学传感器让距离感测更精准
Si1102是Silicon Labs公司推出的一款探测距离范围为0~50cm的红外接近传感器,可探测最小辐照度仅1uW/cm2,支持单脉冲检测模式,最低功耗仅0.1uA,应用范围包括家电用品、办公用品、手持类电子产品、触控面板、机器保险装置、安全系统、自动提款机、安全探测设备、大屏幕仪器设备等。
Si1120 and Si1102 Assembly Site Addition (ASECL)
型号- SI1120-A-GMR,SI1102-A-GM,SI1102-A-GMR,SI1120-A-GM
输液管位置检测模块中,红外接近传感器Si1102在没有任何物体挡住的情况下,输出电平会抖动,请问这是什么原因?
由于IR与sensor它们之间的相对距离太近,IR视角非常大,发射的红外光直接被sensor接收到,产生干扰信号。需要在IR与sensor之间增加一个黑色的橡胶圈就能将问题解决。
接近传感器Si1102在接近感应插座项目中,封装在插座盒子中,发现有时候反应不灵敏,判断不出人体接近,有什么影响因素?
Si1102的工作原理是通过LED发送红外光,检测到靠近的人体之后返回,达到预设的门槛值之后,产生接近返回信号。由于是红外光,所以对透光的塑料有要求,在选择透光塑料的时候,需要选择红外吸收较低的透明塑料。
Silicon Labs(芯科科技) AN442 Si1102和Si1120 设计指南
型号- SI1102-A-GMR,SI1120,SI1120-A-GMR,SI1102,SI1102-A-GM,SI1120-A-GM
Silicon Labs(芯科科技) Si1120/02-A-GM/R 可靠性报告(PK0865)
型号- SI1102-A-GMR,SI1120,SI1120-A-GMR,SI1102-A-GM,SI1102,SI1120-A-GM
Silicon Labs(芯科科技) Si1120/Si1102装配站点新增ASECL通知(#1308131)
型号- SI1102-A-GMR,SI1120,SI1120-A-GMR,SI1102,SI1102-A-GM,SI1120-A-GM
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品牌:SILICON LABS
品类:Wireless Gecko SoC
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品牌:SILICON LABS
品类:Mighty Gecko Multi-Protocol Wireless SoC
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品牌:SILICON LABS
品类:Switch Hall Effect Magnetic Position Sensor
价格:¥2.2924
现货:126,000
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可定制均温板VC最薄0.4mm,有效导热系数超5,000 W / m·K(纯铜(401 W/m·K ,石墨烯1,200 W/m·K)。工作温度范围同时满足低于-250℃和高于2000℃的应用,定制最低要求,项目年采购额大于10万人民币,或采购台套数大于2000套。
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支持铲齿散热器鳍片最大加工厚度0.1-10mm,最大宽度600mm,铝挤散热器鳍片最小铝挤厚度5mm,最小鳍片间距1cm;定制散热器产品工艺有热管焊接,穿片,打磨,铲齿,铝挤及CNC加工修边飞面等。
最小起订量: 2pcs 提交需求>
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