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LCD 液(ye)晶(jing)屏(ping)是Liquid Crystal Display 的簡稱(cheng)，指(zhi)將玻璃和LCD驅動器(qi)集(ji)成到一(yi)起的LCD顯示(shi)(shi)產品，為用(yong)戶(hu)(hu)提(ti)供了一(yi)個標(biao)準的LCD顯示(shi)(shi)驅動接口，用(yong)戶(hu)(hu)可(ke)以(yi)按照(zhao)接口（有4位(wei)、8位(wei)、VGA等不(bu)同類(lei)型）要求(qiu)進行操(cao)作來(lai)控製(zhi)LCD正確(que)顯示(shi)(shi)。眾所知周，電子產品對(dui)於(wu)靜電防(fang)護(hu)(hu)(hu)要求(qiu)都(dou)比(bi)較高。LCD液(ye)晶(jing)顯示(shi)(shi)屏(ping)對(dui)於(wu)靜電尤其地(di)敏感，容易導致(zhi)LCD顯示(shi)(shi)屏(ping)失(shi)效。為此，專業有實力的LCD液(ye)晶(jing)顯示(shi)(shi)屏(ping)廠(chang)家不(bu)管是在生(sheng)產製(zhi)造工藝還是靜電防(fang)護(hu)(hu)(hu)方案(an)方面，都(dou)做得非常優秀(xiu)。那麼，如何保護(hu)(hu)(hu)LCD液(ye)晶(jing)屏(ping)免受靜電浪(lang)(lang)湧威(wei)脅(xie)和損壞(huai)呢？接下來(lai)，高品質保護(hu)(hu)(hu)器(qi)件(jian)生(sheng)產廠(chang)家及(ji)保護(hu)(hu)(hu)方案(an)服(fu)務商東沃電子要科普的是：LCD液(ye)晶(jing)屏(ping)接口靜電浪(lang)(lang)湧防(fang)護(hu)(hu)(hu)方案(an)圖及(ji)TVS/ESD二極管選型推(tui)薦。

LCD液(ye)晶屏接口靜(jing)電(dian)浪湧防(fang)護方案圖

LCD液晶(jing)屏接(jie)口靜電浪湧防護方案說明

LCD液晶屏(ping)(ping)靜(jing)(jing)電(dian)(dian)(dian)(dian)浪(lang)(lang)湧(yong)問題，東(dong)沃電(dian)(dian)(dian)(dian)子(zi)技術(shu)(shu)建(jian)議(yi)在靜(jing)(jing)電(dian)(dian)(dian)(dian)接觸(chu)口增加TVS、ESD保護(hu)(hu)器(qi)件(jian)，利用(yong)其防(fang)靜(jing)(jing)電(dian)(dian)(dian)(dian)特(te)性，形(xing)成(cheng)靜(jing)(jing)電(dian)(dian)(dian)(dian)泄放回路，增強保護(hu)(hu)。從東(dong)沃LCD液晶屏(ping)(ping)接口靜(jing)(jing)電(dian)(dian)(dian)(dian)浪(lang)(lang)湧(yong)防(fang)護(hu)(hu)方案圖(tu)中可以(yi)看出，LCD數據線及控(kong)製信號(hao)保護(hu)(hu)，東(dong)沃電(dian)(dian)(dian)(dian)子(zi)技術(shu)(shu)推薦選用(yong)5顆分(fen)立式(shi)TVS/ESD二(er)(er)極(ji)管(guan)DW05DUCF-B-E或1顆集成(cheng)式(shi)TVS/ESD二(er)(er)極(ji)管(guan)DW05-4RVLC-E對LCD液晶屏(ping)(ping)進行(xing)靜(jing)(jing)電(dian)(dian)(dian)(dian)浪(lang)(lang)湧(yong)防(fang)護(hu)(hu)。分(fen)立式(shi)TVS/ESD二(er)(er)極(ji)管(guan)DW05DUCF-B-E，工(gong)作電(dian)(dian)(dian)(dian)壓5V、峰(feng)值(zhi)脈沖電(dian)(dian)(dian)(dian)流3A、鉗位電(dian)(dian)(dian)(dian)壓20V、漏電(dian)(dian)(dian)(dian)流0.15μA、DFN1006-2L封(feng)裝(zhuang)；結電(dian)(dian)(dian)(dian)容低至(zhi)0.5pF，保證(zheng)視(shi)頻傳(chuan)輸信號(hao)不失真；符合IEC 61000-4-2（靜(jing)(jing)電(dian)(dian)(dian)(dian)）±15kV（空(kong)氣）和 ±10kV（接觸(chu)）標準。集成(cheng)式(shi)TVS/ESD二(er)(er)極(ji)管(guan)DW05-4RVLC-E，工(gong)作電(dian)(dian)(dian)(dian)壓5V、峰(feng)值(zhi)脈沖電(dian)(dian)(dian)(dian)流4A、鉗位電(dian)(dian)(dian)(dian)壓12V、漏電(dian)(dian)(dian)(dian)流5μA；結電(dian)(dian)(dian)(dian)容低至(zhi)0.5pF，保證(zheng)視(shi)頻傳(chuan)輸信號(hao)不失真；SOT-23-6L封(feng)裝(zhuang)，集成(cheng)了4個端(duan)口保護(hu)(hu)，有(you)效減小(xiao)PCB安裝(zhuang)空(kong)間；符合IEC 61000-4-2（靜(jing)(jing)電(dian)(dian)(dian)(dian)）±20kV（空(kong)氣）和 ±12kV（接觸(chu)）標準。

LCD液晶屏(ping)接口靜(jing)電浪湧防護(hu)器件參數

1）東沃TVS/ESD二極管DW05DUCF-B-E參數

查(cha)看(kan)東沃電子「ESD-DW05DUCF-B-E Datasheet」規(gui)格書可知：

2）東沃TVS/ESD二極管DW05-4RVLC-E參(can)數

查看東沃電子(zi)「ESD-DW05-4RVLC-E Datasheet」規(gui)格書可(ke)知：

以上是東沃LCD液晶屏接口靜電浪湧防護經典方案，如有特殊需求，歡迎前來探討。電子產品浪湧靜電保護需要用到各種電路保護器件，很多工程師也意識到電路保護器件的重要性，但由於選型不當或沒按照電路PCB設計原則，造成產品EMC測試不通過，產品多次驗證失敗，浪費人力財力；或過度設計，造成成本壓力。浪湧靜電防護方案，找東沃電子，電路保護不迷路！方案中選用到的TVS/ESD二極管DW05DUCF-B-E和DW05-4RVLC-E，東沃電子已全面量產、品質穩定、高可靠性、交期迅速、廠家價格、免費樣品、免費EMC測試、免費選型，歡迎廣大新老客戶前來咨詢：137 5773 6996（微信同號）余工。