【应用】-2.0和7.0V之间并行端口17条数据和控制线ESD保护方案
在并行端口中,有17条数据和控制线需要接受ESD保护。 这种情况的信号传输速率高达2Mbps ,电压介于-2.0和7.0V之间。 这些线路的抑制电容量应予考虑。
如下图所示的情况,可使用LITTELFUSE推出的离散型多层压敏电阻V9MLA0402,让电路板布局更为灵活。 这些部件可满足数据和控制线的电容要求,以及双极断态电压的要求。
方案中使用的V9MLA0402离散型多层压敏电阻采用了Littelfuse多层制造技术。 这些组件用于抑制各种瞬态事件,包括IEC 6100-4-2规定的或其他用于电磁兼容性(EMC)标准的瞬态事件。 它可在比齐纳二极管更广泛的温度范围下工作,并有比塑料组件布局更小的封装尺寸。工作电压和能量范围宽广,是无数电源设备、控制器件和信号线路等应用的理想之选。
除了上述建议外,Littelfuse产品组合还提供了其它解决方案。 例如,若想使用阵列布局来减少部件数量,就应考虑使用类似V9MLN41206多线路瞬态电压浪涌抑制器这样的产品。IEC 61000-4-2是最适合此接口的标准规范。 通过该测试可证明终端产品不易受到ESD危害。
V9MLN41206多线路瞬态电压浪涌抑制器用于保护组件免受电路板瞬态电压的损坏。 为减少产品数量、缩短布局时间以及节省印刷电路板空间,该器件在单个“1206”无引线芯片中安装了四个独立抑制器。 符合IEC 6100-4-2人体模式静电放电标准,具有优越的绝缘性能,截面间的串音干扰极小,可代替独立齐纳/电容器组合,还可提供双线路型号。
并行端口电路图
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汽车城 Lv5. 技术专家 2018-11-07学习
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Metal-Oxide Varistors (MOVs) Surface Mount Multilayer Varistors (MLVs) > MLN Series
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MLN SurgeArray™Suppressor
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新产品 发布时间 : 2017-08-04
Littelfuse(力特) MLA Varistor Series 数据手册
型号- V9MLA0603LN,V3.5MLA0805LN,MLA,V18MLA0805N,V30MLA0805LN,V38MLA1812N,V85MLA1210N,V5.5MLA1206N,V18MLA0805LN,V9MLA0603LF,V26MLA1210,V68MLA1206N,V18MLA0603F,V14MLA0805L,V3.5MLA0603N,V14MLA0603F,V5.5MLA0603LN,V14MLA0603N,V3.5MLA0805N,V14MLA0805N,V30MLA1812N,V18MLA1206N,V18MLA1812N,V9MLA0805LN,V30MLA1210H,V9MLA0402LN,V30MLA1206N,V30MLA1210N,V5.5MLA0603LF,V18MLA0402F,V18MLA1210N,V14MLA0805LN,V14MLA0402F,V5.5MLA0805NH,V18MLA0603N,V26MLA0805LN,V14MLA0402N,V42MLA1206N,V56MLA1206N,V26MLA1210N,V9MLA0402F,V30MLA0603F,V3.5MLA1206N,V5.5MLA0402LF,V18MLA0805LNH,V120MLA1210N,V26MLA1210NH,V9MLA0402N,V18MLA1206XXX,V30MLA0603N,V9MLA0402LF,V18MLA0805,V18MLA0402N,V120MLA1210,V33MLA1206N,V9MLA0805LNH,V48MLA1206N,V26MLA0805N,V48MLA1210LN,V5.5MLA0603H,V9MLA0603N,V5.5MLA0805N,V26MLA0603N,V48MLA1210N,V5.5MLA0603N,V12MLA0805L,V30MLA1210LN,V5.5MLA0603NA,V5.5MLA0603NH,V14MLA1206N,V26MLA0603F,V45MLA1812N,V14MLA0603,V14MLA0402,V60MLA1210N,V5.5MLA0402N,V5.5MLA0402LN,V26MLA1206N,V5.5MLA0402F,V5.5MLA0805LN,V12MLA0805LN
【产品】多线路浪涌阵列抑制器,内置四个独立抑制器
Littelfuse公司推出的MLN浪涌阵列抑制器设计用于保护组件免受电路板瞬态电压的损坏。为减少产品数量、缩短布局时间以及节省印刷电路板空间,该器件在单个“1206”无引线芯片中安装了四个独立抑制器。
新产品 发布时间 : 2018-05-11
电子商城
现货市场
服务
可加工PCB板层数:1~30层,板材类型:单双面板/多层板/HDI盲埋孔板/高频高速板/微波射频天线板/高精度阻抗板/厚铜板/微波FR4/耐腐蚀光模块PCB等,成品尺寸:5*5cm~58*70cm; 板厚0.2~6mm。
最小起订量: 1 提交需求>
整体外形尺寸小至0.6*0.3*0.3mm (DFN0603),工作电压范围覆盖2.5V~36V,电容值低至0.2pF,浪涌能力最高可达240安培,静电等级可达空气放电、接触放电±30KV。提供免费浪涌测试仪、静电测试仪测试。
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