LTW-C193SS2 SMD LED Takardar Bayani - Girman 0.4mm Siriri - Ƙarfin Wutar Gaba 2.5-2.9V - Farin Launi - Ƙarfin 35mW - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

LTW-C193SS2 na'urar haɗawa ta saman (SMD) ce mai haskakawa (LED) wanda aka tsara don zamani, aikace-aikacen lantarki masu ƙarami. An siffanta shi da siririnsa na musamman, wanda yake auna kawai 0.40 mm a tsayi, yana mai da shi dacewa da aikace-aikace masu matsanancin ƙarancin sarari. Na'urar tana amfani da kayan semiconductor na InGaN (Indium Gallium Nitride) don samar da haske mai fari, yana ba da matakan haske masu girma. An yi fakitin a kan tef na 8mm da aka nannade a kan reels masu diamita inci 7, yana sauƙaƙe dacewa da kayan aikin sarrafawa da aka saba amfani da su wajen kera lantarki.

Wannan LED ana rarrabe shi azaman samfurin kore kuma ya bi ka'idar Ƙuntata Abubuwa masu haɗari (RoHS). Tsarinsa ya dace da tsarin gyarawa na infrared (IR) reflow, wanda shine babban hanyar haɗa abubuwan haɗawa ta saman zuwa allunan da'ira (PCBs). Fakitin ya bi ka'idojin Ƙungiyar Masana'antu ta Lantarki (EIA), yana tabbatar da dacewar injiniya tare da tsarin sanyawa na masana'antu.

2. Zurfin Bayanin Fasaha

2.1 Matsakaicin Matsakaicin Matsakaici

Matsakaicin matsakaicin matsakaici yana bayyana iyakokin da za su iya haifar da lalacewa ta dindindin ga na'urar. Ga LTW-C193SS2, an ƙayyade waɗannan a yanayin zafin muhalli (Ta) na 25°C. Matsakaicin ƙarfin watsawa na ci gaba shine milliwatts 35 (mW). Ƙarfin wutar DC bai kamata ya wuce 10 mA ba a ƙarƙashin aiki na ci gaba. Don aikin bugun jini, matsakaicin ƙarfin wutar gaba na 50 mA yana halatta, amma kawai a ƙarƙashin takamaiman yanayi: zagayowar aiki na 1/10 (10%) da faɗin bugun jini na 0.1 milliseconds. Wuce waɗannan iyakokin ƙarfin wutar zai iya haifar da yawan zafin haɗuwa, saurin lalacewar kayan semiconductor, da gazawa mai tsanani.

An ƙididdige na'urar don kewayon zafin aiki na -20°C zuwa +80°C. Kewayon zafin ajiya ya fi fadi, daga -40°C zuwa +85°C, yana nuna yanayin da za a iya ajiye LED ba tare da amfani da wutar lantarki ba. Wani muhimmin bayanin ya ƙayyade cewa yin aiki da LED a ƙarƙashin yanayin karkatar da baya a cikin da'irar aikace-aikace na iya haifar da lalacewa ko gazawa. Saboda haka, ƙirar da'ira dole ne ta tabbatar cewa ba a sanya LED ga ƙarfin wutar baya ba yayin amfani na yau da kullun.

2.2 Halayen Lantarki & Na Gani

Ana auna halayen lantarki da na gani a daidaitaccen yanayin gwaji na Ta=25°C da ƙarfin wutar gaba (IF) na 2 mA, wanda ke aiki azaman ma'anar gama gari don kwatanta aikin LED.

• Ƙarfin Haskakawa (Iv):Wannan ma'auni yana auna hasken da idon ɗan adam ya gane. Iv na LTW-C193SS2 yana da mafi ƙarancin ƙimar 18.0 millicandelas (mcd) kuma matsakaicin (na yau da kullun) na 71.0 mcd a 2mA. Ainihin ƙimar Iv don takamaiman naúrar an rarraba shi kuma an yi masa alama a kan jakar fakitin sa.
• Kusurwar Dubawa (2θ1/2):An bayyana shi azaman cikakken kusurwar da ƙarfin haske ya rabi na ƙarfin a digiri 0 (a kan-axis). Wannan LED yana da faɗin kusurwar dubawa na digiri 130, yana ba da tsarin haske mai faɗi, mai yaduwa wanda ya dace da hasken baya da aikace-aikacen nuna alama.
• Haɗin Launi (x, y):Waɗannan haɗin gwiwa suna bayyana wurin launi na hasken fari akan zanen launi na CIE 1931. Ƙimar yau da kullun sune x=0.29 da y=0.31. An yi amfani da jurewar ±0.01 ga waɗannan haɗin gwiwa. Ana auna launi ta amfani da na'urar gani wacce ke kusantar da'irar amsawar ido na ma'aunin CIE.
• Ƙarfin Wutar Gaba (VF):Faɗuwar wutar lantarki a kan LED lokacin da ake gudanar da ƙayyadaddun ƙarfin wutar gaba. A IF=2mA, VF ya bambanta daga mafi ƙarancin volts 2.50 zuwa matsakaicin volts 2.90. Wannan ma'auni yana da mahimmanci don ƙirar da'irar iyakance ƙarfin wutar LED.
• Ƙarfin Wutar Baya (IR):Ƙaramin ƙarfin wutar yaduwa da ke gudana lokacin da aka sanya ƙarfin wutar baya. An ƙayyade shi azaman matsakaicin microamperes 10 (μA) a ƙarfin wutar baya (VR) na 5V. Takardar bayanin ta bayyana a sarari cewa wannan yanayin gwaji don siffanta kawai ne kuma ba a tsara na'urar don aikin baya ba.

Takardar bayanin ta haɗa da muhimman bayanan gargaɗi game da Zubar da Wutar Lantarki (ESD). LED suna da hankali ga ESD, kuma hanyoyin sarrafawa ya kamata su haɗa da amfani da igiyoyin wuyan hannu, safar hannu masu hana tsayayye, da kayan aikin da aka kafa da kyau don hana lalacewa.

3. Bayanin Tsarin Binning

Don sarrafa bambance-bambancen halitta a cikin tsarin kera semiconductor, ana rarraba LED zuwa kwandon aiki. LTW-C193SS2 yana amfani da tsarin binning mai girma uku dangane da Ƙarfin Wutar Gaba (VF), Ƙarfin Haskakawa (Iv), da Hue (Launi).

3.1 Ƙarfin Wutar Gaba (VF) Bins

Ana rarraba LED zuwa kwandon VF guda huɗu (Y1, Y2, Y3, Y4), kowanne yana wakiltar kewayon 0.1V a cikin cikakken ƙayyadaddun 2.50V zuwa 2.90V. Misali, kwandon Y1 ya haɗa da LED masu VF tsakanin 2.50V da 2.60V a IF=2mA. Ana amfani da jurewar ±0.1V ga kowane kwandon. Daidaitaccen VF a cikin rukuni yana taimakawa tabbatar da daidaiton haske lokacin da tushen wutar lantarki mai ci gaba ke tuka LED ko kuma a cikin sauƙaƙan tsari (ko da yake ana ba da shawarar tuƙi mai ci gaba sosai).

3.2 Ƙarfin Haskakawa (Iv) Bins

An ayyana kwandon Iv guda uku (M, N, P). Kwandon M ya ƙunshi kewayon 18.0-28.0 mcd, kwandon N ya ƙunshi 28.0-45.0 mcd, kuma kwandon P ya ƙunshi 45.0-71.0 mcd, duk an auna su a IF=2mA. Ana haɗa jurewar ±15% tare da kowane kwandon. Zaɓin LED daga kwandon Iv ɗaya yana da mahimmanci ga aikace-aikacen da ke buƙatar daidaiton haske, kamar tsarin hasken baya na LED da yawa ko allunan nuna matsayi.

3.3 Hue (Launi) Bins

An rarraba wurin launi na fari zuwa yankuna shida (S1 zuwa S6) akan zanen launi na CIE 1931. An ayyana kowane kwandon ta wurin yanki mai siffar huɗu da aka ƙayyade ta hanyar saiti huɗu na haɗin gwiwa (x, y). Misali, kwandon S2 ya ƙunshi haɗin gwiwa kusan tsakanin x:0.274-0.294 da y:0.258-0.319. Zane a cikin takardar bayanin yana nuna waɗannan kwandon a zahiri. Jurewar ±0.01 ya shafi haɗin gwiwa (x, y). Yin amfani da LED daga kwandon hue ɗaya yana da mahimmanci don guje wa bambance-bambancen launi da ake iya gani a aikace-aikacen LED da yawa.

4. Bayanin Injiniya & Fakitin

4.1 Girman Fakitin

LED yana da daidaitaccen tsarin fakitin LED chip. Muhimman girma sun haɗa da tsayin gabaɗaya na 0.40 mm. Takardar bayanin tana ba da cikakken zanen girma tare da duk mahimman ma'auni, gami da tazarar kushin, faɗin kayan aiki, da girman ruwan tabarau. Ana ba da duk girma a cikin millimeters, tare da jurewar gabaɗaya na ±0.10 mm sai dai idan an ƙayyade. Wani bayanin ya nuna cewa alamar gano cathode (alamar fari) na iya zama wani ɓangare na ruwan tabarau ya rufe, don haka ana buƙatar kulawa daidai yayin sanyawa.

4.2 Tsarin Kushin Gyarawa da aka Ba da Shawara

An ba da tsarin ƙasa da aka ba da shawarar (sawun ƙafa) don PCB don tabbatar da ingantaccen haɗin gyarawa yayin reflow. An ba da girman kushin da aka ba da shawarar da tazara don cimma fillet ɗin gyarawa da ƙarfin injiniya da suka dace. Wani bayanin ya ba da shawarar matsakaicin kauri na stencil na 0.10 mm don aikace-aikacen man gyarawa don hana yawan ajiye man gyarawa da haɗin gwiwa mai yuwuwa.

4.3 Fakitin Tef da Reel

Ana ba da LED a cikin tef ɗin ɗaukar kaya mai ɗaukar hoto tare da murfin kariya, wanda aka nannade a kan reels masu diamita inci 7 (178 mm). Faɗin tef yana da 8 mm. Ƙarfin reel na yau da kullun yana da guda 5000. Fakitin ya bi ƙayyadaddun ANSI/EIA 481-1. Muhimman bayanan fakitin sun haɗa da: ana rufe aljihunan fanko da murfin murfin; mafi ƙarancin adadin oda don ragowar yana da guda 500; kuma ana ba da izinin mafi girman abubuwan da suka ɓace biyu a jere (aljihun fanko) a kowane reel.

5. Jagororin Gyarawa & Taro

5.1 Bayanin Gyarawa Reflow

LED ya dace da gyarawar infrared reflow. Matsakaicin yanayin gyarawa shine matsakaicin zafin jiki na 260°C na matsakaicin dakika 10. An ba da shawarar bayanin reflow, wanda yawanci ya haɗa da matakin pre-heat, hawan zafin jiki, yankin reflow mafi girma, da lokacin sanyaya. Takardar bayanin ta jaddada cewa mafi kyawun bayanin ya dogara da takamaiman ƙirar PCB, man gyarawa, da tanda da aka yi amfani da su, kuma yana ba da shawarar siffanta matakin allon.

5.2 Gyarawar Hannu

Idan gyarawar hannu ya zama dole, ya kamata a yi shi da kulawa sosai. Matsakaicin zafin ƙarshen guntun gyarawa da aka ba da shawarar shine 300°C, tare da matsakaicin lokacin gyarawa na dakika 3 a kowane haɗin gwiwa. Ya kamata a yi gyarawar hannu sau ɗaya kawai don guje wa lalacewar damuwa mai zafi ga fakitin LED.

5.3 Tsaftacewa

Tsaftacewa bayan gyarawa ya kamata a yi shi da kulawa. Kayan tsaftacewa da aka ƙayyade kawai ne ya kamata a yi amfani da su. Takardar bayanin ta ba da shawarar yin amfani da barasa na ethyl ko isopropyl a zafin daki. Ya kamata a nutsar da LED na ƙasa da minti ɗaya. Ruwayen sinadarai da ba a ƙayyade ba na iya lalata fakitin filastik ko kayan ruwan tabarau.

6. Ajiya & Sarrafawa

Ajiya don Fakitin da aka Rufe:LED a cikin ainihin fakitin su na hana danshi (tare da desiccant) yakamata a adana su a 30°C ko ƙasa da kuma 90% danshin dangi (RH) ko ƙasa. Rayuwar shiryayye a ƙarƙashin waɗannan yanayi shine shekara ɗaya.

Ajiya don Fakitin da aka Buɗe:Da zarar an buɗe jakar hana danshi, LED suna da hankali ga danshin muhalli. Muhallin ajiya bai kamata ya wuce 30°C da 60% RH ba. Ana ba da shawarar sosai cewa LED da aka cire daga ainihin fakitin su a yi musu gyarawar infrared reflow a cikin sa'o'i 672 (kwanaki 28).

Ajiya Mai Tsayi & Baking:Don ajiya fiye da sa'o'i 672 a wajen ainihin jakar, yakamata a ajiye LED a cikin akwati mai rufi tare da desiccant ko a cikin desiccator na nitrogen. Idan LED sun kasance a cikin yanayin muhalli fiye da sa'o'i 672, dole ne a gasa su a kusan 60°C na aƙalla sa'o'i 20 kafin gyarawa don cire danshin da aka sha da hana "popcorning" (fashewar fakitin) yayin reflow.

7. Shawarwari na Aikace-aikace & Abubuwan Ƙira

7.1 Yanayin Aikace-aikace na Yau da Kullun

Siririn siriri (0.4mm) ya sa wannan LED ya dace da aikace-aikacen da sararin samaniya ya zama mahimmanci. Manyan aikace-aikace sun haɗa da: hasken baya mai siriri-sosai don na'urorin hannu (wayoyi, kwamfutocin hannu), na'urorin lantarki masu sawa, alamomin matsayi a cikin ƙananan na'urorin lantarki na masu amfani, da hasken panel a cikin ƙananan hanyoyin sadarwa na sarrafa masana'antu. Faɗin kusurwar dubawa yana da amfani ga aikace-aikacen da ke buƙatar haske mai daidaito, mai yaduwa maimakon katako mai mai da hankali.

7.2 Abubuwan Ƙira na Da'ira

• Tuƙin Yanzu:Koyaushe ku tuka LED tare da tushen wutar lantarki mai ci gaba, ba tushen wutar lantarki mai ci gaba ba, don tabbatar da ingantaccen fitar da haske da hana gudu mai zafi. Aikin wutar lantarki da aka ba da shawarar yana a ko ƙasa da matsakaicin 10 mA DC.
• Resistor Mai Iyakance Yanzu:Lokacin amfani da tushen wutar lantarki mai sauƙi tare da resistor na jerin gwano, lissafa ƙimar resistor ta amfani da dabara R = (V_supply - VF_LED) / I_desired. Yi amfani da matsakaicin VF daga takardar bayanin (2.9V) don ƙira mai ra'ayin mazan jiya don tabbatar da cewa wutar lantarki ba ta wuce ƙimar da ake so ba.
• Kariya ta ESD:Haɗa diodes na kariya na ESD akan layukan PCB da aka haɗa zuwa anode/cathode na LED idan taro ko samfurin ƙarshe zai iya sarrafa shi a cikin muhallin da ba a sarrafa ESD ba.
• Gudanar da Zafi:Ko da yake ƙarfin watsawa yana da ƙasa, tabbatar da isasshen taimako na zafi a cikin kushin PCB, musamman idan an sanya LED da yawa kusa da juna ko kuma idan yanayin zafi ya yi zafi. Wannan yana taimakawa kiyaye ƙaramin zafin haɗuwa, wanda ke kiyaye rayuwar LED da kwanciyar hankali na launi.

7.3 Abubuwan Ƙira na Gani

Don aikace-aikacen nuna alama, yi la'akari da faɗin kusurwar dubawa na digiri 130. Jagororin haske ko masu yaduwa na iya buƙatar siffata fitar da haske ko ɓoye tushen ma'anar LED mai hankali. Don hasken baya, zaɓin binning (Iv da Hue) yana da mahimmanci. Yi amfani da LED daga kwandon ɗaya, mai ƙarfi don cimma daidaiton haske da launi a ko'ina cikin nuni ko panel.

8. Abubuwan Dogaro & Tsawon Rayuwa

Yayin da takardar bayanin ba ta ba da takamaiman ƙimar rayuwa na L70 ko L50 (sa'o'i zuwa 70% ko 50% kula da lumen) ba, rayuwar LED ta fi tasiri ta zafin haɗuwar aikinta. Muhimman abubuwan da suka shafi dogaro sun haɗa da:

• Aikin Yanzu:Tukin LED a ko ƙasa da ƙimar sa (10mA DC) yana da mahimmanci. Yin aiki sama da wannan ƙimar yana ƙara yawan zafin haɗuwa da haɓaka raguwar lumen da canjin launi.
• Zafin Muhalli:Yin aiki kusa da babban iyaka na ƙayyadaddun kewayon (+80°C) zai rage ingantaccen rayuwa. Rage aikin wutar lantarki a yanayin zafi mafi girma shine kyakkyawan aiki.
• Bin Tsarin Gyarawa:Bin bayanin reflow da aka ba da shawarar da guje wa yawan zafin gyarawar hannu yana hana lalacewar haɗin waya na ciki da ɓarkewar fakitin, waɗanda suke yawan hanyoyin gazawa.
• ESD da Matsalolin Wutar Lantarki:Sarrafawa daidai da kariyar da'ira suna hana gazawar gaggawa ko lalacewa mai ɓoye wanda ke bayyana a matsayin gazawar farko a fagen.

9. Kwatancen Fasaha & Mahallin Kasuwa

LTW-C193SS2 na cikin rukunin LED chip masu siriri-sosai. Babban bambance-bambancensa shine tsayinsa na 0.40mm. Idan aka kwatanta da daidaitattun fakitin LED na 0603 ko 0402 waɗanda galibi suke tsayi 0.6-0.8mm, wannan na'urar tana ba da raguwa mai mahimmanci a cikin bayanin. Fasahar InGaN don hasken fari yawanci tana ba da inganci mafi girma da mafi kyawun zaɓuɓɓukan launi idan aka kwatanta da tsofaffin fasahohi kamar shuɗi da aka canza zuwa phosphor akan wani tushe daban. Faɗin kusurwar dubawa na digiri 130 shine ma'auni don LED chip ba tare da ruwan tabarau na ciki ba kuma ya dace da yawancin aikace-aikacen haske na gabaɗaya. Babban ma'aunin zaɓi akan samfuran gasa zai kasance haɗin takamaiman kauri, haske (Iv a wani lokaci), ƙarfin wutar gaba, da ƙayyadaddun tsarin binning, wanda ke ba da damar daidaita launi da haske daidai a cikin aikace-aikace masu wahala.