标签: important

ImportantNoticeforTIDesigns.pdf

ImportantNotesforTVSplacementintheCircuitImportantNotesforTVSplacementintheCircuit1.Grounding,RulesofThumb•UseMultilayerPCBw/internalgroundplanes•GroundRings:>2.5mmwide•Powertracesnexttogroundtraces•Connectpowergroundtoedgeconnector•Designlowimpedancegrounds•UseTVSfrompowerpintoPCBground2.ShieldingMaterial:•MetalEnclosure/Case•ConductiveFilledPlastics•ConductivePaint3.)PCBTraceDesign(layout)•120V=>1.5mm•1500V=>2.2mm•20000V=>20mm4.)PCBConnectors•RecommendShieldedFemaletype•Mountincenterofcardedge•Connectcableshieldtocircuitground5.)EMC/EMICouplingPath•MinimizeCurrentLoopareas•Reduce……