通信芯片防护:如何选择合适的TVS TSS器件?
一、引言
在现代工业自动化、能效监测、智能仪表等应用领域中,通信接口如RS-485、RS-232、CAN等芯片被广泛应用于实现设备间的高效数据交换。然而,这些接口产品经常工作在电磁兼容性(EMC)挑战极为严峻的环境中。生产和应用环境中的瞬态冲击,不仅可能导致通信信号失真和数据传输错误,还可能损坏通信接口芯片,导致整个系统的失效。TVS和TSS作为典型的电路保护器件,能够为通信芯片提供必要的保护。本文将探讨如何选择适合的TVS和TSS器件,为系统设计提供可靠的解决方案。
二、TVS和TSS的对比
在电子设备的生产过程和终端客户应用中,保护接口芯片免受各种电过应力事件的影响是一个不可忽视的问题。TVS/TSS保护管常用于上述用途,因为它们可以通过生成低阻抗电流路径来钳制电压尖峰。
TVS对冲击的抑制
TSS对冲击的抑制
图1 TVS TSS对冲击波形的抑制作用对比
TVS管跟TSS管二者的封装类型是类似的,但是二者的吸收效果却有一定的差异。TVS管,全称瞬态电压抑制二极管;TSS是电压开关型瞬态抑制二极管,或者叫做半导体放电管。从名称上可以直观地看出二者的抗干扰能力区别, 吸收效果可以通过图1来简单地理解,TVS的残压非常稳定,对瞬态冲击可以起到更好的抑制作用,TSS存在尖峰脉冲。
TVS TSS的关键参数
TVS
TVS Vc=10.5V
TSS
TSS Vs=12V
以智能电表应用为例,上述为智能电表中RS-485芯片常用的TVS和TSS保护器件,在进行选型的时候,需要特别关注的指标如下:
Vrwm/Vdrm
TVS的Vrwm和TSS的Vdrm要高于芯片的工作电压,才能确保没有冲击时,不会影响芯片的正常通讯。
VC/VS
TVS的VC(钳位电压)相对较低,以SMB6.8CA为例,在10.8V;
TSS的VS(转折电压)从最初的25V降至12-15V,但是多次重复测试,尖峰残压值不稳定。
结电容
低压TVS的结电容在nF量级,TSS为几十pF,更适用于高速应用的场景,特别是国网电表提速后,以前使用的防护器件无法满足新的应用要求,表厂通常选择VC更高的TVS以减小结电容,或者更换为TSS。
响应时间
TVS/TSS的规格书通常对此不做标注,可以根据快速瞬变信号的残压信号作对比测试,或者采用VF-TLP设备测试峰值电压的波形,同等规格的TVS的响应时间通常优于TSS。
额定功率Pppm
TVS/TSS产品的额定瞬态功率应大于电路中可能出现的最大瞬态浪涌功率。
三、应用实例
TVS/TSS方案是最基本的防护方案,为了适应不同的应用场景以及不同的接口芯片,上海贝岭给出几个应用实例。
单端总线的应用实例
上海贝岭以RS-232接口为例,给出单端总线的TVS防护方案。
图2 RS-232 外围应用图
图2为RS-232电路的外围应用图,根据RS-232芯片的工作电压和极限电压,可以选用的双向TVS为SMB8.0CA,总线上串联的100欧姆电阻也起到了一定的限流作用。
差分混合网络的应用实例
随着系统的复杂度和通信速率不断提升,混合网络的需求日益增加,以电力行业的集中器和采集终端为例,CAN和RS-485共用外围防护器件以及通信线缆,外围应用如图3所示:
图3 混合网络的外围应用图
在混合网络中,CAN收发器总线的极限电压通常在40V以上,明显高于RS-485收发器,所以工作电压和极限电压按照RS-485的参数进行选择。同时在该系统中,RS-485通信速率为115200bps,CAN的通讯速率为1Mbps,需要考虑保护器件结电容的影响。
对于通讯速率低于9600bps的智能电表而言,可以选择TVS,对瞬态冲击具有较好的抑制作用,例如SMBJ6.8CA。对于115200~1Mbps智能仪表设备,由于结电容的限制,可选用TSS器件。需要关注的是,响应时间和VS需满足系统以及接口芯片的要求,其中VS不能超过RS-485芯片AB端的极限电压值。由于集中器需要进行380V防错接测试,所以总线上需要接入RTA/RTB热敏电阻,配合TSS确保通信芯片的安全。热敏电阻的型号可以参考MZ11-10A200-300RM,如果总线上只在A端接入一颗热敏电阻,则建议采用MZ11-10A300-600RM。
四、结论
在实际应用中,选择合适的TVS/TSS防护元件至关重要。对于需要极快响应速度和较低钳位电压的应用,TVS二极管是首选,而对于高速数据传输的应用,TSS保护器件提供了更多的选择。
无论是选择TVS还是TSS,都需要根据具体的应用场景和技术需求进行权衡。合理选择和使用防护元件,可以显著提高接口芯片的可靠性和耐用性,确保电子设备的稳定运行。
表1为上海贝岭RS485、RS232产品选型表,可以根据不同的应用场景进行多样化的选择。
表1 RS485、RS232产品选型表
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本文由Lluvia转载自上海贝岭公众号,原文标题为:通信芯片防护:如何选择合适的TVS TSS器件,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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SERIES,SA90C,10D241K,SMD0805-010,10SMBJ180A,14D431K,LCDA05C-8,LCDA05C-4,25D,P6KE220CA,SA40CA,ESD05V32D-C,HCM1012GD900B05,10SMBT7.5A,ESD05V88D-CBP,10D821KEC,SMD0805-005,UN2E8-150ML,UN1812-760HS,ESD05V88D-CBD,SMCJ64A-AT,SMBJ48CA-AT,P3800TB,TPSMBJ30A,P3800TA,SMDJ90,UN3220-471HS,P6KE100CA,5KP28C,SMDT7.0A,P6SMB SERIES,5KP28A,14D681KJ,TPSMA100A,P3800SC,P3800SB,SMDJ85,6.0SMAJ54CA,ESD30V12D-C,P3800SA,ESD30V12D-A,SMDJ80,SMAJ8.5CA,SMAJ180C,SMAJ180A,UN2E5-90LSMD,TP5.0SMDJ40A,SMDJ75CA-AT,20D122KJ,10SMBT36A,ESD3.3V04D-LC,SMAJ350CA-AT,14D361KSC,5.0SMDJ220A,SMDJ78,UN30-160,UN16-900,ESD05V08P-LC,SMDJ75,25D121K,5KP8.0C,14D561KJ,SMDJ70,5KP8.0A,UN2K8-450L,1.5SMC10A,UN0805-420H,TPSMA6J26CA,SMDJ16CA,SMCJS SERIES,14D560K,SMBJ130C,SMBJ130A,5.0SMDJ350A,SMDJ64,SMDJ60,34S210J,5KP120CA,ESD12V52D-CF,30KP120A,UNS3220 SERIES,SMDJ43A-AT,SMDJ58,UN30-185,SMDJ54,P6KE75,10SMBJ7.0CA,SMDJ51,UN2E5-3600LL,20KP132A,SMAJ160CA-AT,10SMBT7.0A,UN2K8,P6KE62CA,UN30-135,SMDJ48,P6KE68,SMDJ45,SMDJ43,UNB-401M,SMDJ40,TPSMA36CA,P6KE82,ESD15V02D-CKN,5.0SMDJ78C,SMCJ7.0C,SMDT7.5A,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,5.0SMDJ48CA,UN111B339HWA1DFL,15KP51A,TPSMDJ,SMDJ36,SMDJ33,25D751KJ,P4SMA220A,SMDJ30,10SMBJ60A,P6KE91,KB-380,SM8Z26A,ESD3.3V12D-A,ESD3.3V12D-C,SMD1812-200-16V,TPSMCJ,UN2H8-5000LL,SMDJ28,5KP8.5C,SMDJ26,5KP8.5A,SMDJ24,UN2K8-600,SMDJ22,SMDJ20,UN1210-151H,SMD0805-110-12V,SMBJ11A-AT,07D331KJ,ESD0402M,UN16 SERIES,14D751KSC,SMD1812-300-16V,SM8Z28A,SMDJ19,ESD12V52D-HA,SMDJ18,SMDJ17,SMDJ16,TPSMB10J16CA,SMDJ15,TPSMBJ,SMDJ14,TPSMB56CA,SMDJ13,SMDJ12,SMDJ11,SMDJ10,SMCJ36A,SMD0805-010-30V,P6KE30,32D621KJ,SMCJ36C,SA190CA,5.0SMDJ75C,5.0SMDJ75A,UNA-SMD,15SMBJ160CA,SMF54CA,TPSMA6J18A,P4SMA91A,P6KE27,TPSMAJ,P6SMB170A,P0300DM,UN1812-390HS,P6KE24,P6KE22,P6KE43,SMCJ45CA,UN3E8-200HSMD,UN0603E,P6KE75CA,P0300EA,P0300EB,P0300EC,P6KE39,TPSMA6J19A,UN2H8,P6KE36,TCF03025U12002A SERIES,P6KE33,10SMBJ64A,SMCJ58CA,P6KE51,TPSMBJ110CA,SMDJ180CA-AT,25D511KJ,SMD1206-300,SMDJ7.5CA,TPSMA75A,UN1812-270HS,5.0SMDJ17A-AT,1.5KE18CA,14D201KJ,UN30-110,BLC03C-4,UN2K8-350L-2,5.0SMDJ70CA,UN2E5,UN2K8-350L-1,SMCJ33A,P6KE47,SMCJ33C,TPSMA6J16A,UN2E8,UN2E8-150HL,P4SMA350A,P6KE62,P4SMA6.8CA,ESD03V23T-LC,ESD03V23T-LA,ESD08V52D-A,15SMBJ180A,14D301K,10SMBT30A,P6KE56,ESD08V52D-C,TPSMA6J17A,5.0SMDJ33CA,UNS3K,UN2E6-SMD SERIES,UN1812-390H,TPSMDJ24CA,20D361K,40D361KJ,4.0SMF13CA,SMDJ160A,SMBJ160CA-AT,TP5.0SMDJ28A,
芯力特车规TVS产品助力CAN/LIN通讯接口保护,具备低钳位电压、高Ipp、低结电容等特性
芯力特深耕车规CAN/LIN通讯接口芯片,在大量的客户项目应用中深入了解客户需求后,推出了汽车级TVS防护器件,助力车规CAN/LIN通讯接口保护。该系列产品具备低钳位电压、高Ipp、低结电容等特性,能够更好地保护CAN/LIN通讯接口。
【技术大神】小谈USB Type C接口的ESD保护方案
本文分析了ESD故障的三种类型,并以实际的案例总结了工业类产品选择ESD器件的原则和注意事项。
【经验】实现USB接口静电防护的两种方法:加入ESD专用芯片和磁珠+共模抗流器
针对USB接口静电防护第一个方法是在VCC和GND管脚分别串入一个120ohm、2A的磁珠,在数据差分线上串入一个90ohm共模抗流器,共模抗流器由两根导线同方向绕在磁芯材料上。第二种做法是在USB的管脚上加入ESD专用芯片,推荐Littelfuse 公司的SP1021 TVS管。
芯力特(SIT)CAN/LIN/LDO芯片选型指南
描述- 作为国内首家同时拥有CAN、LIN收发器芯片的模拟IC厂商,芯力特陆续发布40余款CAN、CAN FD、LIN收发器芯片,累计出货量超2亿颗,产品广泛应用于汽车各功能模块,是国内该细分领域产品系列最齐全、出货量最大、产品最成熟的IC设计公司。同时 RS485、RS422、RS232接口系列芯片以及电源芯片广泛应用于汽车、工业、通讯、安防等众多领域。
型号- SIT1042AQ,SIT1028Q,SITNE24V2BNQ-3/TR,SITNW24V1BNQ-2/TR,SIT2105LQ,SITNC23T36V2B,SIT1042A,SMCJ30AQ,SMCJ33AQ,SIT1021T/20+,SIT1040T,SIT1145AQ,SIT1024Q,SIT1145Q,SIT1022Q,SIT1044Q,SIT2105L,SIT1021Q/1,SIT1044T,SIT1051A,SIT1051AQ,SITNC1524Q,SMBJ30AQ,SIT1029Q,SIT1027Q,SITNC3D24Q,SITLE24V2BNQ-3/TR,SMBJ33AQ,SIT1057Q,SIT1043Q,SIT14503
【产品】维安多款USB Type-C线缆接口保护芯片,支持输入过压、过流以及静电保护
上海维安电子成立于1996年,产品包括功率半导体、混合信号类芯片、电源管理芯片、信号链芯片以及电路保护器件,产品应用涵盖通讯、电池组、手持设备、汽车电子、工业设备以及消费电子行业。维安推出的一系列Type-C接口保护芯片,支持输入过压、过流以及静电保护,能够为设备提供一站式的保护方案,确保稳定,可靠的使用。
【应用】国产静电防护TVS管ESD05V14T-LC,USB2.0防护神器
USB2.0是应用在计算机领域的接口技术,具有传输速度快、支持热插拔的特点。USB2.0接口在应用中需要支持热插拔、传输数据过程中不能丢包,USB2.0芯片比较脆弱,易受到静电损伤。针对USB2.0静电防护,硕凯电子推出了静电防护TVS管ESD05V14-CL,具有结电容低、体积小、符合IEC61000-4-2防护标准的特点。
富信推出峰值功率高达400W的SMFXX(C)AL系列TVS瞬态电压抑制二极管,有效处理外部干扰
日常电器在插拔和上电的瞬间接口电路会出现干扰信号,此时通过在端口上的TVS管可以在干扰信号超过钳位电压时将多余的能量导回原路径,从而避免外部能量对电器的损坏。安徽富信半导体科技有限公司推出了一款TVS瞬态电压抑制二极管SMFXX(C)AL系列,这款产品能有效应对外部干扰信号,保证电器正常工作,可应用于PDA,手持笔记本,桌面设备和数码相机等产品。
【经验】解析深井地震探测设备雷击浪涌多极GDT陶瓷放电管与TVS管组合整改案例
本文介绍了优恩半导体雷击浪涌GDT陶瓷放电管与TVS管组合整改案例。案例问题描述的客户产品为深井地震探测仪,设备分为井下传感器、电源供电及通讯接口和井上地面设备数据采集器两部分,中间通过一根多芯铠装电缆承载,多芯线缆包括模拟信号、数字信号、供电和RS485信号。
优恩半导体(UNSEMI)ESD静电保护/雷击浪涌保护器件/串口芯片产品选型指南(英文)
目录- Company Introduction ESD Protection Diodes(ESD) Transient Voltage Suppressor(TVS) Thyristor Surge Suppressors(TSS) Sidac Thyristor(SIDAC) Metal Oxide Varistors(MOV) Gas Discharge Tube(GDT) Spark Gap Protectors(SPG) Micro Surge Protection Module(Micro-SPD) Polymeric Positive Thermal Coefficient(PPTC) RS485/422 Transceiver CAN Transceiver RJ45 Modular Jack connectors Small signal devices EMI Protection devices
型号- SMDJ-AT SERIES,UNS3K,07DXXKJ,UN2E8-XXXML SERIES,SMBJ,UN2E5-XXXLL SERIES,40DXXK SERIES,UN232,UN2E8-XXXL HV,4.0SMF SERIES,UN1812-XXXCSMD SERIES,10DXXKJ,5.0SMDJ-AT SERIES,P6KE SERIES,30KP SERIES,SACB SERIES,UNS1K SERIES,PXXXSC SERIES,P4KE,SMD0603 SERIES,10DXXK SERIES,10DXXKEC SERIES,UN490E,UN3E8-XXXHP,UNSDC12V-3L,07DXXK,07DXXL,UN3E5-XXXMSMD,20DXXK SERIES,PXXXSB,15KPS,PXXXSA,PXXXSB-2L,P4SMA SERIES,SA SERIES,SMAJ,UN2220 SERIES,05DXXKJ,SAC SERIES,SMF SERIES,PXXXSC,KXXXSA SERIES,20KP,5.0SMDJ SERIES,0402 SERIES,20KP SERIES,TPSMAJ SERIES,PXXXLB SERIES,SMCJ SERIES,UN3490,P4SMA,UNSDC24V-3L,SMDJ,UNS1K,UN3E6-XXXMM,UN65HVD75,UN2E8-XXXL HV SERIES,SMDT,UN1812 SERIES,UN3220 SERIES,1.5SMC,SA,UN2E8-XXXML,UNS4032 SERIES,UN2E8-XXXHL SERIES,UN2E5-XXXL HV,UNSDC58V-2L,SMD1210 SERIES,PXXXSD1,UN2E5-XXXLSMD,PXXXEC SERIES,UN3485,UN16,5KP,1.5KE SERIES,TP5.0SMDJ,14DXXL SERIES,07DXXKBC SERIES,UNS2K,UN2E8-XXXMSMD,UN2E5-XXXLL HV SERIES,10DXXKEC,UNSDC24V-2L,32DXXL SERIES,14DXXKJ SERIES,UN3E8-XXXHM SERIES,SMCJ,TPSMB SERIES,UN1210-XXXBSMD SERIES,UN3E6-XXXM,TPSMDJ SERIES,UN65HVD233,UN65HVD234,UN65HVD232,UN65HVD230,SMBJ-AT,UN2E5-XXXL,UN2E8-XXXM,UN1210-XXXBSMD,10DXXKJ SERIES,34SXX,KC SERIES,UN2E6-XXXLSMD SERIES,UN2E8-XXXH,UNB-XXXN-SMD,UN3E8-XXXHMF,32DXXKJ SERIES,UN1050,UN3232E,UNA-XXXM-SMD,UN1050ISODUB,PXXXG,32DXXKJ,40DXXK,UNS3220,UNB-XXXM-SMD,40DXXL,UN3085NE,SMCJS,UN2E8-XXXHSMD,TPSMB10J,32DXXK,32DXXL,PXXXEC,UN30,PXXXEB,PXXXEA,30KP,P6SMB SERIES,PXXXSC-2L SERIES,15KP,PXXXSC-2L,0603,SMD2920 SERIES,10SMBT,14DXXKJ,UN82C250,UNSRS485-2HL,UN82C251,10SMBJ,05DXXL SERIES,25DXXL SERIES,TPSMC SERIES,UN2H8-XXXL HV SERIES,UNSDC58V-3L,SM8Z SERIES,TPSMCJ SERIES,SM5Z,UN6,UN3E5-XXXL,UN3088E,KXXXG SERIES,PXXXTB,PXXXTA,UN2E5-XXXLSMD SERIES,KA SERIES,UNB-XXXN-SMD SERIES,UN3088ES,07DXXL SERIES,5KP SERIES,UN3485ISO,8KP SERIES,PXXXEA SERIES,UNA-XXXN/M SERIES,SMCJS SERIES,3KP,SM8Z,UN3E5-XXXLM,SMCJ-AT SERIES,LCE SERIES,UNC-XXXN/M SERIES,PXXXSA SERIES,UNSRS485-2H,SMCJ-AT,25DXXKJ SERIES,UN0805 SERIES,PXXXDM,POE58C,15SMBJ,PXXXTB SERIES,PXXXSB-2L SERIES,UNA-XXXN-SMD,40DXXKJ SERIES,UNS3220 SERIES,UN1206 SERIES,P4KE SERIES,SM5Z SERIES,UN2E8-XXXMSMD SERIES,UN3E6-XXXMM SERIES,05DXXK,05DXXL,UN600 SERIES,1012 SERIES,UNB-XXXN/M SERIES,8.0SMDJ,UNSRS485-2L,P6SMB,SACA SERIES,40DXXKJ,40DXXL SERIES,PXXXDM SERIES,SACA,UN0603 SERIES,SACB,UN2E5-XXXL SERIES,UN2H8-XXXLL HV SERIES,SMD2920,0402,8.0SMDJ SERIES,25DXXL,25DXXK,UN30 SERIES,10DXXL SERIES,20DXXL SERIES,25DXXKJ,5KPS,UNA-XXXN-SMD SERIES,UN485E,UN2E8-XXXHL,PXXXSB SERIES,UN485ES,PXXXTA SERIES,UN3E8-XXXHMF SERIES,UN2H8-XXXLL HV,SMDJ-AT,4.0SMF,SMF,TPSMB10J SERIES,0603 SERIES,5KPS SERIES,UN2E8-XXXH SERIES,KD SERIES,UN60,SMAJ-AT SERIES,TPSMDJ,UN1206-XXXASMD SERIES,UN2E8-XXXHSMD SERIES,UN3232E-T,UN1210 SERIES,14DXXKSC,07DXXKBC,10DXXK,UNSDC48V-2L,10DXXL,53DXXK,UN3E8-XXXHSMD SERIES,2012 SERIES,UN0805,UN3E5-XXXMSMD SERIES,KA,KB,UN1812-XXXCSMD,KC,TPSMCJ,UN2E8-XXXLL HV,KD,6.0SMAJ SERIES,14DXXKSC SERIES,UNS2K SERIES,10SMBJ SERIES,TP5.0SMDJ SERIES,SMD1812 SERIES,UN60 SERIES,5.0SMDJ,UN3490E,UNSDC48V-3L,20DXXKYC SERIES,SMD0603,SMD1812,KXXXSB SERIES,UN1206,UN16 SERIES,SMBJ SERIES,UNSRS422-2H,SMDT SERIES,UN1210,UNSRS422-2L,UN135 SERIES,TPSMBJ,PXXXLC SERIES,UNS4032,0201 SERIES,UN1206-XXXASMD,UN2H8-XXXL HV,5.0SMDJ-AT,UN3E5-XXXL SERIES,20DXXKYC,UN3485S,UN3E6-XXXM SERIES,34SXX SERIES,UN2E5-XXXLL,05DXXK SERIES,0201,UN3E8-XXXHP SERIES,UN3E8-XXXH SERIES,UN1042,UN3220,TPSMAJ,UN1040,UN2E8-XXXLL HV SERIES,15KP SERIES,8KP,UN2E5-XXXL HV SERIES,UN2E6-XXXLSMD,6.0SMAJ,UN3E8-XXXHSMD,32DXXK SERIES,34SXXJ SERIES,SMD1206 SERIES,SMBJ-AT SERIES,TPSMA SERIES,UNC-XXXM-SMD,LCE,UN600,14DXXK,UN6 SERIES,14DXXL,UNC-XXXN-SMD SERIES,UNSRS422-2HL,15SMBJ SERIES,SAC,SMD0805 SERIES,SMAJ SERIES,UN3E5-XXXLM SERIES,UN3E5-XXXLSMD SERIES,UN250 SERIES,UN3E8-XXXH,UN485CUA,UN488E,UN250,KB SERIES,PXXXLC,UN2E5-XXXLL HV,UN135,PXXXLB,PXXXLA,07DXXK SERIES,SMD1206,UN0603,UN1812,20DXXL,20DXXK,PXXXEB SERIES,10SMBT SERIES,1.5KE,14DXXK SERIES,UNC-XXXN-SMD,05DXXKJ SERIES,3KP SERIES,P6KE,07DXXKJ SERIES,UNS3K SERIES,KXXXSD1 SERIES,TPSMC,SMD0805,25DXXK SERIES,TPSMB,TPSMA6J SERIES,TPSMA,TPSMBJ SERIES,34SXXJ,20DXXKJ,SMD1210,20DXXKJ SERIES,SMDJ SERIES,UN2220,UN2E8-XXXM SERIES,TPSMA6J,UNSDC12V-2L,1.5SMC SERIES,15KPS SERIES,SMAJ-AT,PXXXLA SERIES,UN3E5-XXXLSMD
纳芯微电子(NOVOSENSE)信号感知芯片/隔离与接口芯片/驱动与采样芯片选型指南(中文)
型号- NSI6602NA-DLAR,NSI6602VC-Q1SWR,NCA1051N-Q1SPR,NSPDS5/7,NSM201X 系列,NSM2017,NSM2019,NSI6602A-Q1SWKR,NSM2013,NIRS485,NSIP83086,NSM2015,NSM2016,NSC9260X,NSD1624-Q1SPR,NSM2011,NSM2012,NSI8231,NSI8230,NSD2621C-DQAGR,NSR33XXX,NSC9262,NSC9260,NSI6801LC-DDBR,NSI6602VD-Q1SWKR,NSC9264,NSD1025V,NSD12409-Q1,NSP1830,NSG65N15K-DQAFR,NCA1042A-Q1DNHR,NSI8220NX,NSI6622A-DSWKR,NSI6801TB-DDBR,NSD1624-DSPKR,NSP1833,NSP1831,NST7719,NSP1832,NSI8222,NSA2860X,NSI8100,NSI8221,NSI8220,NSI6642C-DSPNR,NSI822XC,NSI6602MNF-Q1SWTR,NSD11416-Q1STBR,NSI6602VB-Q1SPNR,NCA3491,NSI6642A-DLAR,NSA2860_TSSOP,NSI8221CX-DSWR,NCA1043B-Q1DNKR,NSD1025V-DSPR,NCA1051A-DSPR,NSM201X,NSI1303X,NSI6622A-Q1SPNR,NCA1051N-Q1,NSM2031,NSI6602MNB-Q1SWTR,NSD7310A-DHSPR,NSM2032,NSM2033,NSI8210,NSIP8840WX,NSI6601MB-DSPR,NSD1224,NCA95XX 系列,NSD1015T,NSI8266CX-DSWR,NSI6602VD-DSWKR,NSI8222CX-DSPR,NSD1015MT-DSPR,NCA1021S-Q1SPR,NSI8262CX-DSWR,NSPGS2,NCA34XX,NCA1051A,NCA3485,NSI68011C-DSWAR,NSD11416-Q1,NSI8221NX,NSI6602NC-DLAMR,NSPGS5,NST1002,NSI6602VC-DLAMR,NST1001,NSI6602A-DLAR,NSI6602ND-DSWKR,NSD16241-Q1SPR,NSI1303M0X,NSM3011,NSI8240CX-DSPR,NIRSXX,NSD7312-Q1,NSM3013,NSM3012,NSA2862X,NSA2860_SSOP16,NSI6642B-DSWKR,NSI823XC,NSD5604N,NSI6642A-DLAMR,NSI319X,NSI6642D-DLAR,NSI8100NC,NCA1042B-DSPR,NSI6602B-Q1SWR,NSI6601B-DSPR,NSA2860X-QQNR,NSI8210NX,NSI6642D-DSWKR,NSD5604E,NSI6602MF-DSWTR,NIRSP31,NSI6602MNB-DSWTR,NST175,NST1075,NSI6602A-DSPNR,NSI68010B-Q1SWAR,NSI1312D,NSI6642B-DSWR,NSI8222NX,NSI6601C-DSPR,NSA2862X-DQNR,NCA9617A 系列,NSP1631,NSI8221CX-DSWVR,NSP1632,NSP1630,NSI6622C-DLAR,NSA3180T,NSD2621,NSI824XC,NSI6602VA-Q1SPNR,NSI6602ND-DLAR,NSD1025V-Q1HSPR,NSI6801C-DSWFR,NCA3176,NSPGM2,NSI6801MB-DSWVR,NSPGM1,NSI1312S,NSI6622B-Q1SPNR,NSD5604N-DHTSPR,NSD1624-DLAJR,NSI68011C-Q1SWAR,NSI6602VA-DLAMR,NSI6602NA-DLAMR,NSI6602NB-DSWR,NSD5604E-DHTSTR,NSR35XXX,NSD5604N-Q1HTSPR,NSI6602C-Q1SPNR,NSI8038X,NSE5702,NSE5701,NSP183X,NCA1021S-Q1DNR,NSD16241-DSPKR,NSI3190,NSI6602VD-DSWR,NSR7808 系列,NSD1224LA-DAFR,NSI8241SX,NSI68515RC,NSI8231CX-DSWR,NSI6801B-DSWFR,NSP183X 系列,NSI6602B-Q1SPNR,NSI6601WC-DSWVR,NSI6651ASC-Q1SWR,NSC6272,NSI8263CX-DSWR,NSD8310-Q1HTSXR,NSC6273,NSREF31XX,NSI6602NB-DLAR,NSI6602NB-DSPNR,NSA5312,NSI6602A-Q1SWR,NSI6642C-DLAMR,NSI6601MC-DSWVR,NSR7808,NSI8266WX,NSI8220WX,NSD5604NE,NSI6602VB-DSWKR,NCA1042BN-Q1SPR,NCA1043B-Q1,NCA9511,NSI6602A-DSWR,NSC6280,NSD2621B,NSD2621C,NSI6602NC-DSWR,NSI6801TC-DDBR,NSI8242SX,NSI68515AC-DSWR,NST112,NSI6602B-DSWKR,NSI6602VD-DLAMR,NSI8220CX-DSWVR,NST235,NST117,NSI6602VC-DSWKR,NSI6602VC-Q1SWKR,NSI6602MB-DSWDR,NST118,NSD1624,NSD16242-Q1SPR,NCA3085,NCA114-Q1SPKR,NSI6651,NSI6601MB-DSWVR,NSI82XX 系列,NSI6642B-DLAMR,NSI6602C-DSWKR,NSI8240NX,NSP163X,NSI6602NC-DSPNR,NCA1042BN-Q1,NSI8221WX,NSI66X2,NSI6631ASC-Q1SWR,NSD2621A,NSP163X 系列,NSI1050C,NSI6602MNC-DSWTR,NSA3182,NCA1042B-Q1DNR,NSI6642,NSRE31XX,NSI6601C-DSWVR,NSA3180,NIRS2X,NSI8266SX,NSD7310A,NSD8306-Q1,NSG65N15K,NSD12409-Q1SPR,NSI6602VA-DSWKR,NSI6642D-DLAMR,NCA1051N,NSI6642A-DSWKR,NIRS20N1-DSPR,NIRS21N1-DSPR,NSC2860X-DQNR,NSI6602C-DSWR,NSI8221CX-DSPR,NPD010N120A-DTOGT,NSI6602VB-Q1SWR,NSI8210CX-DSPR,NSD12416‒Q1,NSI8241NX,NCA1042BN-Q1DNR,NST461,NCA1042A-Q1,NSI8222WX,NST103,NSI1303D0X,NSI1303E2X,NSI6622A-Q1SWKR,NSI6602VC-DLAR,NSD16242-DSPR,NCA9555,NSI68515LC,NSI1052,NSC6360,NSC6362,NSI6651ALC-DSWR,NSC6364,NCA1042B,NSI6602NA-DSPNR,NSI6622A-DLAR,NSI6622C-Q1SPNR,NSI8220CX-DSWR,NSI6622C-DSPNR,NSA3166,NSI6642B-DLAR,NCA1042B-Q1,NSD1624-DSPR,NSI6602VA-Q1SWR,NSI82XXC 系列,NSI8242CX-DSWR,NSI6602MNC-Q1SWTR,NST20,NIRS31,NSREF30XX,NCA9545,NSI1042,NSI6611,NCA9546,NSI6622B-DSPNR,NCA9306,NCA9548,NSD12416-Q1SPR,NSI6602MC-Q1SWTR,NSI8242NX,NSIP89XX 系列,NSD8308-Q1HTSXR,NCA9617A,NST1001HA,NSI6602VA-DSWR,NSI1303D2X,NSI6601B-DSWVR,NSD7310-DHSPR,NSI6601,NSD731X-Q1,NSR7808GXX,NSD7312-Q1HSPR,NSI6602VB-DLAMR,NSI6602MNF-DSWTR,NSA3300,NSI6602C-Q1SWKR,NSC2860X,NSI68011C,NSD11416‒Q1,NSI6611ASC-DSWR,NSI22C11,NSI8230CX-DSWR,NSI6801B-DSPR,NSD12409‒Q1,NSI6622A-DSPNR,NSD5604NE-DHTSTR,NSL2163X,NST86,NIRS31-DSSR,NCA954X,NSI6642C-DSWKR,NSIP8944WX,NSA2200,NSIP8921WX,NSI8262WX,NSI6602NB-DLAMR,NSD12416-Q1,NSE11409,NSI8260SX,NSPGD1,NSR31,NCA1042B-Q1SPR,NSD7310,NSI6602VD-Q1SPNR,NSD7312,NSR35,NSR33,NSD8306,NSD731X,NSD8308,NIRSP31V,NSI6602VB-DLAR,NSD7310-Q1DHSPR,NSD1624-Q1SPKR,NSD7312A,NSR31 系列,NSI6602VB-Q1SWKR,NSD8310,NSI6602VD-DSPNR,NSI68515UC-DSWR,NST60,NSD8312,NCA954X 系列,NSI6602ND-DSPNR,NCA95XX,NSHT30,NSI6602C-Q1SWR,NSI82XXC,NSL21630,NSI6642B-DSPNR,NSL21631,NSI6602VD-Q1SWR,NSD5604-DHTSPR,NSI22C12,NSI68010B,NSA2302,NSA2300,NSIP8920WX,NSIP8943WX,NPD010N120A,NSI6651ALC-Q1SWR,NSI8240WX,NSD1224LA-DSPR,NSI8261SX,NSD2621B-DQAGR,NSREF30 系列,NSI8263WX,NSI6602A-Q1SPNR,NSI6602NC-DLAR,NSI1303E0X,NSI6801,NSUC1610,NSI83086C,NSI8308XC,NSI6642D-DSPNR,NSD1015T-DSPR,NCA114-Q1DNKR,NSI68515,NCA1051A-Q1SPR,NSPAS1 系列,NSI1306M25,NSI1300D25,NSIP8822WX,NSI6642C-DSWR,NSD1025V-Q1HMSR,NSD7312A-Q1HSPR,NPD020N120A-DTOGT,NSI83085C,NSI6602MB-Q1SWTR,NSIP892X,NSL21610,NSI68515UC,NSI6622B-DSWR,NSI6602VC-DSWR,NPD040N120A-DTOGT,NSI6602C-DLAR,NSPDSX 系列,NSPGS5 系列,NSI6602MC-DSWTR,NSI8262SX,NSI6
芯力特(SIT)通讯接口芯片选型指南
目录- Company profile CAN PRODUCT LIST LIN PRODUCT LIST RS232 PRODUCT LIST POWER CHIP LIST RS485/RS422 PRODUCT LIST TVS PRODUCT LIST PRODUCT RECOMMENDATION TYPICAL ESD/TVS PROTECTION APPLICATIONS
型号- SIT65HVD231DR,SIT65HVD233DR,SIT3051ESA,SIT1022QTK,SIT3085E,SIT1022QT,SIT65HVD235DR,SIT1051AQTK/3,SIT1028QT,SIT1042AQT,SIT3485E,SIT1050QT,SIT2596S-ADJ,SIT485E,SIT2105L,SIT3088EESA,SIT82C250T,SIT1044T,SIT488E,SIT202E,SIT65HVD75,SITUC10F5V4U,SIT1021QTK,SIT2596S-12,SIT3088E,SIT1029QTK,SITLC143T5V2UA,SIT3485,SITLC3D3V1BL,SIT1021QT,SIT1040QT,SIT1044QTK/3,SIT1051AQT/E,SIT1145AQTK/FD,SIT1145AQT,SIT65HVD230DR,SIT65HVD232DR,SIT75176B,SIT1042AQT/3,SIT3491E,SIT1043QTK,SITNC712A,SIT1044QT,SIT65HVD234DR,SIT1029QT,SIT2551T,SIT1028QTK,SIT1027QT,SIT3490EESA,SIT1042T,SIT1051AQT/3,SIT2596S-3.3,SIT1057QTK/3,SIT1024QHG,SIT491E,SIT232,SIT1057QT/3,SIT3490E,SIT3232EESE,SIT1044QT/3,SIT1042AQTK/3,SIT2596S-5.0,SIT1145AQT/FD,SIT1027QTK,SIT3232E,SIT1057QT,SIT1043QT,SIT3082E,SIT65176B,SIT65HVD08,SIT490E,SIT1051AQT,SIT1145AQTK,SIT82C251T,SIT232E
【应用】6.5V反向关态电压的TVS SMBJ6.5A用于运放输入保护,具有高效能、响应速度快等优势
在设计电子产品时,需要设计相应的静电及浪涌防护电路,尤其是在产品的输入输出接口处防护器件必不可少。本文以一款传感器前端信号处理电路的输入防护为例,讲解电路的防护设计,选取的保护器件是硕凯电子的TVS—SMBJ6.5A,静电防护等级符合IEC-61000-4-2 空气放电15kV、接触放电 8kV,防护效果较好。
兰科半导体(LANKERSEMI)高性能模拟芯片产品选型指南
目录- 公司简介 ESD/TVS电路保护器件 马达驱动器件 达林顿驱动器件 降压DC/DC转换器件 LDO低压差线性稳压器件/充电管理IC芯片 运算放大器件 RTC时钟芯片/RS485接口芯片 电子烟单芯片 编码芯片/SBD肖特基二极管 产品封装
型号- LKE05D5CX20-B,LK485,LKE05N3C3D5-B,LK5801,LKC18N4C050-B,LKC03N3C085-B,LKS06N4AX60-B,LK5802,LKP20N4AX40,LK54302,LKP20N5AX80,LKP30N5AX80,LK8089,LK5530,LK8088,LK8120,LKE05N3C040-B,ULN2001D,LKS05D3CXX1-B,LKS06N5A140-B,LKC05N3C075-B,LKE0524PC022,LKE02N4CX25-B,LK6208,LK4148,LKC08N4C040-B,LKS06N5A120,LKC03N4C022-B,LKSBD4005NA,ULN2803AG,LK1041,LK8118,LK1042,LK8116,LKS04N4AX40-B,LKE05N3CX20-B,LKS05D3AX40-B,LK1307,LKE03N3CX22-B,LK55A0,LK0608H,LK1148,LK2358,LKE02N3CX25-B,LK0608L,LKS06N4AX40-B,LKE05D5C3D5-B,LK9110S,LKC18N3C050-B,ULN2802,LKSBD3005NA,ULN2803LV,LKE36N4CX30,LKS12N5AX75,LKS03D3A150-B,LK113,LK116,LK115,ULN2003A,LK118,LK0608,LK1017,LK1018,LKE36T1CX25,LK1019,LK8563I,LK1020,LKS03N4AX40-B,LK1511B,LKS06N4AX55,LK1802,LK1527,LKC05N4C075-B,LK5608,LKS03D5AX40-B,LKS05N4AX40-B,LK4358,LKE12N3CX10-B,LKE24N4CX20-B,LK1801,LKE05N4CX20-B,LK8563,LK1131,LK1012,LKE03N4CX22-B,LKS05N4C1D5-B,LKS712T1AX12,LKS06N4AX40,LKP24N5AX80,LKS03D3CXX1-B,LKC03N4C085-B,LKE15N4CX20-B,LKP24N4AX40,LK1358,LK6803,LK8310,LK1012L,LK1482,LK1484,LK75XX,LK1214L,LKE05N4C040-B,LKE24T1CX30-B,ULN2003AM,LK78L05,LKC03N4C030-B,LKE05D5C040-B,LKP15N4AX40,LKC0324PC030,LKE12N4CX10-B,LK1470,LKP15N5AX80,LKP26N4AX40,LKS05D5AX35-B,LK1057,LK1059,LK2148,LK1214,LK6508,LK3085,LKP26N5AX80,LKC03N3C022-B,LK4054,LK4057,LK1584,LK1410B,LK1410A
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可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
最小起订量: 1 提交需求>
提供全面表征产品器件耗电特征及功耗波形、快速瞬态效应、电源优化、表征和仿真测试服务,使用直流电源分析仪测量精度达50µV,8nA,波形发生器带宽100kHz,输出功率300W,示波器200kHz,512 kpts
实验室地址: 深圳/苏州 提交需求>
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