Diode应用

Diode應用ME3200/YenWeiLiaoDiodeIntroduction•二極體是電路中基本的原件,特性可當作單向導通的開關,主要的應用:整流、截波、簡單的穩壓21D1:SwitchDiode,正常的PN組成21D2:SchottkyDiode,PN中間摻雜金屬,降低VfKAD3:ZenerDiode,使用其崩潰狀態,穩壓用WhatisDiode?PN21D1+-Switch&SchottkyforwardvoltagereversecurrentSwitchdiode750mV@5mA25nA@20VSchottky550mV@[e-mail]nisstopping,therewillbeanegativevoltageonFAN1_VCC,addadiodetoclampthenegativevoltage.Application2.ESDprotectionTV-outConnectorBattery,CRTConnectoralsohavethiskindofESDprotectiondiodes.3.BlockingPreventtheleakagebetweendifferentpowerplanesS3powerS5powerV(battery)=3VV=?V=2.87V4.ORfunction5.Discharge5.Discharge12R15510KR2J-3-GP+VCC_SC12R15615KR2J-1-GP12R15215KR2J-1-GPSC_DATASC_CLKSC_CLK12C282SC12P50V2JN-3GPSC_CD#12C283SC12P50V2JN-3GP12C284SC12P50V2JN-3GP12R15815KR2J-1-GP12C281SCD1U16V2ZY-2GPSC_RSTSC_DATASCSENSESC_RST123456D9CH731UAPT-GP123456789101112SMART1PTWO-CON10-4-GP20.K0382.0100225DB1D9做Discharge用,避免快速插拔SmartCard,而導致誤動作6.ZenerVGSofSI4466DY12VVBDRLZ12Bis12VSoZenerdiodeRLZ12BcanprotectSI4466DYfromovervoltageonVGSWithout?7.Rectifier倍壓器負半週工作AKD1AKD212C112C25sin(120t)正半週工作BQ24740Boost=5V+VphWhatRiskwemeet?0505DB20512DB212C443SCD1U25V3KX-GP12C30SC1KP50V2KX-1GPDY12R3315KR2J-1-GPDY12C27SC1KP50V2KX-1GPDYADPINLIMIT_SIGNALVIN12C33SC100P50V2JN-3GPDY123456789DCIN1SKT-JACK-329-GP22.10037.I110313DB1AKD3P6SBMJ24APT-GP2nd=83.P6SMB.CAG83.P6SBM.AAG12EC22SC1KP50V2KX-1GP12L14BLM21PG220SN1DGP2nd=68.00216.08168.00084.831WhatRiskwemeet?BT_TH#+3VL123D3BAV99W-1-GPWhatRiskwemeet?OverVoltage,OverCurrent,Overtemp.相關的案例(1)KBCissueTherewerehighF/RofKBCpin24(Brightness),pin33(EC_BLON)inVegaandStardust,AndtheFAreportwerealwaysEOSorESD,SoweaddtheESDDiodeinVikingandSpirit.相關的案例(2)Tibet1.0model5V_S0leakage.--Therewasabout0.8VleakagefromJVGA_HSandJVGA_VSofCRTto5V_S0.--EEaddD40topreventfromtheleakageinTibet1.1modelTibet1.0Tibet1.1ThankYou!