Yuav ntsuas kev tiv thaiv tus esd tiv thaiv estd ntawm TVs dodes downes hauv cov khoom sib txuas lus?

一, Cov Him Ntsim Muag thiab TVs Diode tiv thaiv mechanism
1. Esd Kev Nyab Xeeb Kev Nyab Xeeb
Lub zog thiab Wideform: ESD Pulses muaj cov yam ntxwv ntawm voltage siab (txhiab lub volts) thiab luv luv (nanoseconds). Piv txwv li, hauv kev sib cuag tso tawm tso tawm cov IEC tau hais tseg yog 154
Kev puas tsuaj hom: ESD tuaj yeem ua rau muaj kev sib xyaw ua ke PIN puas tuaj yeem ua ke, thiab lwm yam kev puas tsuaj (Oxide txheej sib xyaws) yuav ua rau muaj kev cuam tshuam ntev).
2. TVs Diode Kev Tiv Thaiv Kev Tiv Thaiv
ARSALANCE COG ACHCHISHISM: Thaum lub Esd voltage ntau dua li lub zog voltage (vbr) ntawm cov voltanche lub xeev, clamping qhov hluav taws xob tsis pub dhau ib qho kev nyab xeeb. Piv txwv li, Dongwo Electronics 'smcj58ca TVs Diode muaj kev ua haujlwm ntawm 58v thiab clamping voltage ntawm tsuas yog 93.6V.
Cov yam ntxwv ceev ceev: lub sijhawm teb ntawm TVs dodes lom zem feem ntau yog nyob rau hauv nanosecond ntau, uas muaj peev xwm ua tau zoo ntawm ESD pulses. Piv txwv li, tus ESD5481MUT5G TVS DIODE ntawm Anson Ii tuaj yeem nyem qhov hluavtaws rau ib puag ncig 30v thaum ± 8kv ESD kuaj.
Thib 2, TVs Dide ESD Kev Tiv Thaiv Kev Ntsuas Xyuas Kev Ntsuas Xyuas
1. Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
Breakdown voltage (VBR): It should be higher than the maximum operating voltage of the protected circuit and lower than the withstand voltage value of the device. For example, for communication interfaces powered by 5V, TVS diodes with VBR>5V yuav tsum tau xaiv, xws li Dongwo's dw05dlc- b} s (vbr {{4 4 4 4} v).
Clamp Voltage (VC): Nws yuav tsum qis dua qhov tawg ntawm voltage ntawm cov cuab yeej tiv thaiv. Piv txwv li, rau MCU pins nrog lub ntsuas hluav taws xob tiv thaiv 20v, TVs diodes nrog vc<20V should be selected, such as LM1K24CA from Lei Mao (VC=35V, but it needs to be verified through actual testing).
Peak Pulse Current (IPP): Must meet the requirements of ESD testing standards. For example, IEC 61000-4-2 Level 4 testing requires TVS diodes to withstand ± 15kV contact discharge, corresponding to IPP>30A.
2. Kuaj cov qauv thiab siv tau
IEC 61000-4-2 xeem: Nov yog tus qauv tseem ceeb rau kev ntsuas cov ESD tiv thaiv cov TVs cov TVs. Qhov kev xeem suav nrog kev tso tawm tsis tau (± 2kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv / ± 4kv), thiab nws yog qhov cua tawm (± 4kv), thiab nws yog huab cua tso tawm kom haum raws li kev ntsuas.
TLP Kev Ntsuas: Kev Ntsuas Kab Mem Tes Mem Tes Dav Xwm Txheej Txheem Ntxiv rau cov nqi sib txawv ntawm cov TVs DIODES. Piv txwv li, los ntawm TLP kev kuaj, nws tuaj yeem pom tias qee cov TV uas muaj kev ntsuas hluav taws xob muaj qis dua hauv IEC 61000-4-2 tab sis lub clamping voltage yuav nce nce ntawm qhov siab ntws.
Kev Kuaj Circuit Court Qhov Tseeb: Ua ke TVs DIODES rau hauv cov khoom sib txuas lus thiab ua kev ntsuam xyuas esSD thiaj li txheeb xyuas qhov ua haujlwm tsis zoo. Piv txwv li, hauv USB 3.0 interface, nws yog qhov tsim nyog los ntsuas qhov kev cuam tshuam ntawm TVs diodes rau kom ntseeg tau tias qhov yuam kev ncaj ncees ua tau raws li qhov yuav tsum tau ua.
3. Ntim thiab Teeb Kev Ntsuas
Pob loj: pob me me (xws li sod {}} 323, DFN1006) yog tsim nyog txo qhov kev cuam tshuam ntawm cov cab tsis muaj kev ntsuas ntawm cov paib. Piv txwv li, Ansson's ESD5481MUT5G TVS DIODED hauv DFN1006 nrog kev sib tw tsim hluav taws xob ntawm tsuas 0.5pf, haum rau USB 3.1 interface.
Cov qauv teeb tsa: TVS Piv txwv li, hauv RJ45 Ethernet Interface, TVS Diode yuav tsum tsawg dua 3mm deb ntawm cov TVs ua ntej txuas rau phy nti.
3, Xaiv thiab Tshuaj Ntsuam Xyuas ntawm TVs Diodes rau Cov Kev Sib Txuas Lus Sib Tham
1. USB interface
Yuav tsum tau tsom xam: USB 3.1 Kev Txhawb Nqa Tus Kis Tus Nqi ntawm 10GBPs thiab yuav tsum xaiv cov TVs ntawm kev muaj peev xwm thiab qib ESD. Piv txwv li, Ansson's Rollamp0524P TVs Diode muaj peev xwm muaj peev xwm ntawm 0.2pf thiab txhawb IEC 61000-4-2 qib 4 xeem.
Cov ntsiab lus ntsuas: nws yog qhov tsim nyog los sim qhov kev cuam tshuam ntawm TVs dodes diodes ntawm cov teeb liab lub teeb kos duab kom ntseeg tau tias Jitter<50ps and error rate<10 ^ -12.
2. HDMI interface
Yuav tsum tsom xam: HDMI 2.1 Interface txhawb nqa tus nqi sib kis ntawm 48Gbps thiab muaj cov kev tiv thaiv zoo dua rau ESD tiv thaiv. Piv txwv li, Dongwo's DWC0526NS {4 4 Q TVS muaj peev xwm muaj 0.3pf thiab txhawb ± 15kv tiv tauj tawm.
Cov ntsiab lus ntsuas: nws yog qhov tsim nyog los sim qhov kev cuam tshuam ntawm TVs dodes kom ntseeg tau tias kev poob qis yog tsawg dua lossis sib npaug ntawm kev ploj rov qab yog ntau dua 15dB.
3. RF interface
Yuav tsum tsom xam: RF Pem hauv ntej - xaus ntawm 5g puag ncig yuav tsum tau nrog siab {{{3} {} Power ESD Hem. Piv txwv li, SkyWorks 'SMS7630-079LF TVs Diode ntau dua 40ghz thiab haum rau 28GHz zaus band.
Cov ntsiab lus soj ntsuam: nws yog qhov tsim nyog los sim qhov kev cuam tshuam ntawm TVs diodes ntawm RF cim kom ntseeg tau qhov kev ntsuas<0.3dB and isolation>40db.
4, cov tswv yim txhim kho kom zoo hauv engineering kev xyaum
1. Ntau theem kev tiv thaiv architecture
Kev thov sib xyaw ua ke: hauv cov xwm txheej uas muaj hluav taws xob ob qho chaw thiab hluav taws xob zoo li qub), ib qho TVs txuas), TVS + ESD Diode sib txuas ua ke yuav siv tau. Piv txwv li, hauv Rs - 485 interface, xws li {}}}}}}}}}}}}}}}}}}}} padnc2fd5vb) los cuam tshuam nrog hluav taws xob zoo li qub.
Parameter txuam: nws yog ib qho tsim nyog yuav kom ntseeg tau tias lub clamping voltage ntawm txhua theem ntawm cov cuab yeej tiv thaiv tau txo kom tsis txhob muaj cov cuab yeej tom ntej raug rau ntau dhau voltage.
2. Thermal tsim thiab ntseeg tau
Heat dissipation treatment: High power TVS diodes need to be equipped with heat sinks to ensure that the junction temperature is controlled below 150 ℃. For example, for TVS diodes with IPP>100a, rau-220 ntim khoom thiab lub tshuab cua kub yuav tsum muaj.
Kev Tshuaj Xyuas Lub Neej: Ntsuas kev ntseeg tau ntawm TVs dodes diodes nyob rau hauv qhov kub thiab huab cua nyob ib puag ncig (xws li nres sim).
3. Txhaum kev kuaj mob thiab ceeb toom
Cov xwm txheej saib xyuas: TVS Diode nrog kev ua haujlwm ntawm tus kuaj mob tus kheej tau saib xyuas tus kheej ntawm ESD cov txheej xwm nyob rau hauv lub sijhawm thiab tshaj tawm cov ntaub ntawv los ntawm I ² C cuam tshuam. Piv txwv li, NXP tus ntse esd diode tuaj yeem sau dua 1000 ESD cuam tshuam thiab kev txhawb nqa kev twv xyuas.
Kev tsim qauv tsim qauv: Dual TVs Diodes muaj kev sib txuas hauv parallel ntawm cov kev pheej hmoo tseem ceeb los txo qhov kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho kev pheej hmoo ntawm ib qho point tsis ua.
5, kev lag luam qauv thiab cov thev naus laus zis thev naus laus zis
1. Ultra kev kub ceev interface tiv thaiv
Terahertz kev sib txuas lus: 6g terahertz zaus band (0.1-10thz) yuav tsum muaj TVs lo lus teb ntawm lub sij hawm<1ps and a junction capacitance of<0.01pF. The industry is exploring ultra high speed TVS diodes based on graphene, with the goal of achieving a response time of 0.5ps.
Photon sib xyaw ua ke: silielon raws li oploelectronics (SIPH) thev naus laus zis nrog cov txheej txheem tshiab nrog CMOOS cov txheej txheem. Piv txwv li, Intel's 100g Siph Optical module siv cov TV sib xyaw ua ke nrog lub sijhawm teb nrog tsawg dua 20ps.
2. Cov ntse tiv thaiv thiab cov thev naus laus zis thev naus laus zis
AI tsav kev tiv thaiv: Tshawb xyuas ESD cov kev tshwm sim los ntawm tshuab kev kawm algorithms thiab dynamically kho cov clamping voltage ntawm TV. Piv txwv li, TI tus ntse esd maub los tuaj yeem cia ua kom zoo rau cov kev tiv thaiv kev tiv thaiv raws li ib puag ncig cov av noo thiab kub.
Kev yoog cov network: kev sib xyaw ua ke ib qho kev sib txuam nrog cov lus qhia hauv TV Piv txwv li, siv cov mems hloov mus ua tiav 50 ω -75 ω impedance hloov thiab txo kev cuam tshuam txog kev poob siab.
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