Bayanin Fasaha na LED LTST-M670KRKT - AlInGaP Ja - Ruwa Bayyananne Lens - Kallon Kusa 120° - Matsakaicin Halin Yanzu 30mA - Takardar Fasaha ta Hausa

1. Bayanin Samfur

Wannan takarda tana ba da cikakken ƙayyadaddun fasaha na babban haske, LED mai hawa sama wanda aka tsara don aikace-aikacen lantarki na zamani. Na'urar tana amfani da kayan semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP) don samar da fitowar haske ja mai ƙarfi. An haɗa shi a cikin fakitin ruwa-bayyananne lens, wannan LED an ƙera shi don dacewa da tsarin haɗawa ta atomatik da daidaitattun dabarun siyar da infrared reflow, wanda ya sa ya dace da samarwa mai yawa.

Babban fa'idodin wannan ɓangaren sun haɗa da bin ka'idojin muhalli (RoHS), aiki mai daidaito a cikin faɗin zafin aiki, da kuma fakitin da ke sauƙaƙe sarrafawa da sanyawa. Manyan kasuwannin da aka yi niyya sun haɗa da na'urorin lantarki na mabukaci, kwamitocin sarrafa masana'antu, hasken ciki na mota, da aikace-aikacen nuna alama gabaɗaya inda ake buƙatar ingantaccen haske ja mai haske.

2. Bincike Mai zurfi na Sigogi na Fasaha

2.1 Matsakaicin Matsakaicin Ƙimar

An ƙayyade na'urar don aiki a ƙarƙashin waɗannan matsakaicin matsakaicin yanayi, wanda bayansa lalacewa ta dindindin na iya faruwa. Duk ƙimar an ƙayyade su a zafin yanayi (Ta) na 25°C.

• Rushewar Wutar Lantarki:72 mW. Wannan shine matsakaicin adadin wutar lantarki da LED zai iya watsawa azaman zafi ba tare da wuce iyakokin zafinsa ba.
• Matsakaicin Halin Yanzu na Gaba:80 mA. Wannan yana halatta ne kawai a ƙarƙashin yanayin bugun jini tare da aikin 1/10 da faɗin bugun 0.1ms. Wuce wannan a cikin aikin DC zai lalata na'urar.
• DC Halin Yanzu na Gaba (Ci gaba):30 mA. Wannan shine shawarar matsakaicin halin yanzu don ci gaba, aikin tsayayye don tabbatar da dogon lokacin aminci da kiyaye ƙayyadaddun aikin gani.
• Ƙarfin Lantarki na Baya:5 V. Yin amfani da ƙarfin lantarki na baya wanda ya wuce wannan ƙimar zai iya haifar da rushewar haɗin gwiwa.
• Kewayon Zafin Aiki:-40°C zuwa +85°C. An garanti na'urar za ta yi aiki a cikin ƙayyadaddun sigoginta a cikin wannan cikakken kewayon zafin masana'antu.
• Kewayon Zafin Ajiya:-40°C zuwa +100°C.

2.2 Halaye na Lantarki & Gani

Teburin da ke gaba yana ƙididdige mahimman sigogi na aiki a ƙarƙashin daidaitattun yanayin gwaji (Ta=25°C, sai dai idan an lura da haka). Waɗannan su ne ƙimar da masu ƙira yakamata su yi amfani da su don lissafin da'ira da tsammanin aiki.

• Ƙarfin Hasken (I_V):Ya bambanta daga mafi ƙarancin 90 mcd zuwa na yau da kullun 280 mcd a halin yanzu na gaba (I_F) na 20mA. Ana auna ƙarfin ta amfani da firikwensin da aka tace don dacewa da amsawar gani na idon ɗan adam (lanƙwasa CIE).
• Kusurwar Dubawa (2θ_1/2):Digiri 120. Wannan faɗin kusurwar dubawa, wanda aka ayyana a matsayin kusurwar da ƙarfin ya ragu zuwa rabin ƙimar axis, ya sa LED ya dace da aikace-aikacen da ke buƙatar faɗin ganuwa.
• Matsakaicin Tsawon Tsawon Tsawon (λ_P):639 nm (na yau da kullun). Wannan shine tsawon tsawon lokacin da fitowar bakan ta fi ƙarfi.
• Matsakaicin Tsawon Tsawon (λ_d):631 nm (na yau da kullun). An samo shi daga zanen launi na CIE, wannan tsawon tsawon guda ɗaya ya fi wakiltar launin da LED ke gani ga idon ɗan adam.
• Rabin Faɗin Layin Bakan (Δλ):20 nm (na yau da kullun). Wannan yana nuna tsarkin bakan; ƙaramin ƙimar yana nufin mafi yawan tushen haske mai launi ɗaya.
• Ƙarfin Lantarki na Gaba (V_F):2.4V na yau da kullun, tare da kewayon daga 2.0V zuwa 2.4V a I_F=20mA. Hakurin akan wannan ƙimar shine +/- 0.1V. Wannan siga yana da mahimmanci don ƙididdige ƙimar resistor mai iyakancewar halin yanzu.
• Halin Yanzu na Baya (I_R):10 µA matsakaicin lokacin da ƙarfin lantarki na baya (V_R) na 5V aka yi amfani da shi.

3. Bayanin Tsarin Binning

Don tabbatar da daidaito a cikin haske a cikin batutuwan samarwa, ƙarfin hasken waɗannan LED ɗin an jera su zuwa takamaiman "kwantena." Kowane kwandon yana ayyana ƙayyadaddun mafi ƙarancin ƙarfi da kewayon ƙarfi lokacin da aka auna a daidaitaccen gwajin halin yanzu na 20mA.

Lambobin kwandon don wannan samfurin sune: Q2 (90.0-112.0 mcd), R1 (112.0-140.0 mcd), R2 (140.0-180.0 mcd), S1 (180.0-224.0 mcd), da S2 (224.0-280.0 mcd). Ana amfani da hakurin +/-11% ga kowane kwandon ƙarfi. Masu ƙira waɗanda ke ƙayyade wannan LED yakamata su san ko wane kwandon suke amfani da shi, saboda yana shafar hasken da aka samu a cikin aikace-aikacen ƙarshe kai tsaye. Don mahimman aikace-aikacen da ke buƙatar kamanni iri ɗaya, yakamata a yi amfani da LED daga lambar kwandon ɗaya.

4. Binciken Lanƙwasa Aiki

Yayin da aka ambaci takamaiman lanƙwasa masu hoto a cikin takardar tushe, abubuwan da suke nufi suna da mahimmanci don ƙira. Manyan alaƙar da za a nuna a cikin irin waɗannan lanƙwasa sun haɗa da:

• Lanƙwasa I-V (Halin Yanzu-Ƙarfin Lantarki):Yana nuna alaƙar ƙima tsakanin ƙarfin lantarki na gaba da halin yanzu. Lanƙwasa zai sami ƙarfin lantarki na "gwiwa" (kusan 2.0-2.4V) wanda sama da shi halin yanzu yana ƙaruwa da sauri tare da ƙananan ƙaruwar ƙarfin lantarki. Wannan yana nuna dalilin da yasa dole ne a sarrafa LED tare da tushen halin yanzu ko tushen ƙarfin lantarki tare da resistor na jerin.
• Ƙarfin Hasken vs. Halin Yanzu na Gaba:Yawanci yana nuna alaƙar kusa da layi tsakanin halin yanzu na tuƙi da fitowar haske a cikin shawarar kewayon aiki. Tuƙi LED sama da matsakaicin halin yanzu na DC na iya haifar da ƙaruwar zafi mai girma da raguwar inganci.
• Ƙarfin Hasken vs. Zafin Yanayi:Ga LED na AlInGaP, fitowar haske gabaɗaya yana raguwa yayin da zafin yanayi ya ƙaru. Fahimtar wannan raguwa yana da mahimmanci don aikace-aikacen da ke aiki a manyan zafin jiki don tabbatar da isasshen haske.
• Rarraba Bakan:Zanen ƙarfin dangi da tsawon tsawon lokaci, yana nuna kololuwa a kusan 639 nm tare da faɗin halaye (rabin faɗi) na kusan 20 nm.

5. Bayanin Injiniya & Fakitin

5.1 Girman Na'ura

LED ya yi daidai da daidaitaccen fakitin hawa sama na EIA. Duk mahimman girma don ƙirar sawun PCB—ciki har da tsawon jiki, faɗi, tsayi, da tazarar jagora—ana bayar da su a cikin takardar tushe tare da daidaitaccen hakuri na ±0.2 mm. Fakitin yana da kayan ruwa-bayyananne lens.

5.2 Ƙirar Tsarin Ƙasar PCB

An ba da shawarar shimfidar kafa na allon da'ira da aka buga (PCB) don tabbatar da ingantaccen siyarwa da daidaitaccen daidaitawar injiniya. Wannan tsarin ƙasa an inganta shi don duka infrared da tsarin siyar da reflow na lokaci. Bin wannan shawarar sawun yana da mahimmanci don samun ingantaccen samuwar haɗin gwiwa, sarrafa zafi, da hana kabari yayin reflow.

5.3 Ganewar Polarity

Cathode (tashar mara kyau) yawanci ana gano shi ta hanyar alamar gani akan fakitin LED, kamar tsaga, kore digo, ko yanke kusurwa akan lens ko jiki. Anode (tashar tabbatacce) ita ce sauran jagora. Dole ne a kiyaye daidaitaccen polarity yayin haɗawa, saboda yin amfani da ƙarfin lantarki na baya zai iya lalata na'urar.

6. Jagororin Siyarwa & Haɗawa

6.1 Sigogi na Siyar da Reflow

Bangaren ya dace da tsarin siyar da infrared mara gubar (Pb-free). An ba da shawarar bayanin martaba, wanda ya yi daidai da ma'aunin JEDEC J-STD-020B. Manyan sigogi sun haɗa da:

• Zafin Pre-heat:150-200°C
• Lokacin Pre-heat:Matsakaicin dakika 120.
• Matsakaicin Zafin Jiki:Matsakaicin 260°C.
• Lokaci Sama da Liquidus:Ana ba da shawarar bin ƙayyadaddun masana'anta na manna siyarwa, yawanci dakika 60-90.

An jaddada cewa mafi kyawun bayanin martaba ya dogara da takamaiman ƙirar PCB, manna siyarwa, da tanda da aka yi amfani da su. Ana ba da shawarar halayen don takamaiman aikace-aikace.

6.2 Bayanan Siyar da Hannu

Idan siyar da hannu ya zama dole, dole ne a yi taka tsantsan:

• Zafin Ƙarfe na Siyarwa:Matsakaicin 300°C.
• Lokacin Siyarwa kowane Jagora:Matsakaicin dakika 3.
• Adadin Sau:Yakamata a yi ƙoƙarin siyarwa sau ɗaya kawai a kowane haɗin gwiwa don guje wa damuwa na zafi akan fakitin filastik.

6.3 Yanayin Ajiya & Sarrafawa

Hankalin danshi abu ne mai mahimmanci ga na'urori masu hawa sama. Wannan LED an haɗa shi a cikin jakar shinge na danshi tare da desiccant.

• Ajiyar Fakitin da aka Rufe:≤ 30°C da ≤ 70% Danshi Dangi (RH). Rayuwar shiryayye shekara ɗaya ne daga ranar lambar.
• Bayan Buɗe Fakitin:"Rayuwar bene" shine sa'o'i 168 (kwanaki 7) lokacin da aka adana a ≤ 30°C da ≤ 60% RH. Idan an fallasa tsawon lokaci, dole ne a gasa LED a kusan 60°C na aƙalla sa'o'i 48 kafin siyarwa don cire danshin da aka sha da hana "popcorning" yayin reflow.
• Ajiyar Buɗe na Dogon Lokaci:Ya kamata a kasance a cikin akwati mai rufi tare da desiccant ko a cikin desiccator mai tsarkake nitrogen.

6.4 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan siyarwa, kawai yakamata a yi amfani da takamaiman kaushi. Nitsar LED a cikin barasa ethyl ko barasa isopropyl a zafin daki na ƙasa da minti ɗaya yana yarda. Masu tsaftacewa na sinadarai waɗanda ba a ƙayyade ba na iya lalata fakitin filastik ko lens.

7. Bayanin Fakitin da Oda

7.1 Ƙayyadaddun Tepe da Reel

Ana ba da LED ɗin akan tepe mai ɗaukar hoto don injunan ɗauka da sanyawa ta atomatik.

• Faɗin Tepe:8 mm.
• Diamita na Reel:Inci 7 (178 mm).
• Adadin kowane Reel:Guda 2000.
• Mafi ƙarancin Adadin Oda (MOQ):Guda 500 don sauran adadi.
• Ma'aunin Tattarawa:Ya yi daidai da ƙayyadaddun EIA-481-1-B. Tepe yana da hatimin murfi, kuma ana ba da izinin fanko na ɓangaren abubuwa biyu a jere.

8. Shawarwarin Ƙira na Aikace-aikace

8.1 Da'irori na Aikace-aikacen Yau da Kullun

LED na'urori ne masu tuƙi na halin yanzu. Mafi ingantaccen hanyar tuƙi kuma ana ba da shawara shine amfani da resistor mai iyakancewar halin yanzu na jerin ga kowane LED, ko da lokacin da aka haɗa LED da yawa a layi daya zuwa tushen ƙarfin lantarki (Samfurin Da'ira A). Wannan yana rama bambancin halitta a cikin ƙarfin lantarki na gaba (V_F) daga LED ɗaya zuwa wani, yana tabbatar da halin yanzu iri ɗaya don haka haske iri ɗaya a duk na'urori. Ana hana tuƙi LED da yawa a layi daya ba tare da resistors ɗaya ɗaya ba (Samfurin Da'ira B), kamar yadda LED tare da mafi ƙarancin V_Fzai ja da halin yanzu da yawa, wanda zai haifar da rashin daidaiton haske da yuwuwar damuwa.

Ƙimar resistor na jerin (R_s) ana ƙididdige shi ta amfani da Dokar Ohm: R_s= (V_wadata- V_F) / I_F. Yi amfani da matsakaicin V_Fdaga takardar bayanai don ƙira mai ra'ayin mazan jiya wanda ke tabbatar da cewa halin yanzu bai wuce I_F.

8.2 Abubuwan da ake la'akari da Ƙira

• Gudanar da Zafi:Yayin da raguwar wutar lantarki ta yi ƙasa, kiyaye zafin haɗin gwiwa a cikin iyakoki shine mabuɗin dogon rayuwa. Tabbatar da isasshen yanki na jan ƙarfe akan kafafun PCB don yin aiki azaman ma'aunin zafi, musamman lokacin aiki a manyan zafin yanayi ko kusa da matsakaicin halin yanzu.
• Kariya ta ESD:Ko da yake ba a bayyana shi a sarari a matsayin mai hankali sosai ba, yakamata a kiyaye matakan kariya na ESD na yau da kullun yayin haɗawa.
• Iyakar Aikace-aikace:An yi niyya wannan ɓangaren don daidaitattun kayan aikin lantarki. Don aikace-aikacen da ke buƙatar ingantaccen aminci ko inda gazawar zai iya haifar da haɗari ga aminci (misali, jirgin sama, tallafin rayuwa na likita), ƙarin cancanta da tuntubar masana'anta sun zama dole.

9. Kwatancen Fasaha & Bambance-bambance

Idan aka kwatanta da tsofaffin fasahohi kamar GaAsP (Gallium Arsenide Phosphide) LED ja, wannan na'urar mai tushen AlInGaP tana ba da ingantaccen inganci mai haske sosai, wanda ke haifar da mafi girma haske don halin yanzu iri ɗaya na tuƙi. Ruwa-bayyananne lens, sabanin watsa ko lens mai launi, yana ba da mafi girman yiwuwar fitar da haske da kuma ƙirar katako mai mai da hankali, mai dacewa da aikace-aikacen da ke buƙatar madaidaiciyar haske mai haske. Kusurwar dubawa na digiri 120 tana ba da daidaito mai kyau tsakanin ƙarfin axis da ganuwa daga axis. Dacewarsa da daidaitattun hanyoyin reflow na IR ya bambanta shi da LED waɗanda ƙila suna buƙatar siyar da hannu ko siyar da igiyar ruwa.

10. Tambayoyin da ake yawan yi (FAQs)

Q: Zan iya tuƙi wannan LED a 30mA ci gaba?

A: Ee, 30mA shine matsakaicin halin yanzu na DC da aka ba da shawara. Don mafi kyawun tsawon rai da kuma lissafin tasirin zafin jiki, ƙira don ƙaramin halin yanzu (misali, 20mA) yawanci yana da kyau.

Q: Menene bambanci tsakanin Matsakaicin Tsawon Tsawon da Matsakaicin Tsawon Tsawon?

A: Matsakaicin Tsawon Tsawon (639 nm) shine kololuwar zahiri na bakan hasken da aka fitar. Matsakaicin Tsawon Tsawon (631 nm) ƙimar ƙididdiga ce wacce ke wakiltar tsawon tsawon guda ɗaya na haske mai launi ɗaya wanda zai bayyana yana da launi ɗaya ga idon ɗan adam. Matsakaicin tsawon tsawon ya fi dacewa don ƙayyadaddun launi.

Q: Me ya sa resistor na jerin ya zama dole ko da tare da samar da ƙarfin lantarki akai-akai?

A: Ƙarfin lantarki na gaba na LED yana da hakuri kuma yana raguwa tare da ƙaruwar zafin jiki. Resistor na jerin yana ba da ra'ayi mara kyau: idan halin yanzu yana ƙoƙarin ƙaruwa (misali, saboda ƙananan V_Fbangare ko hauhawar zafin jiki), faɗuwar ƙarfin lantarki a kan resistor yana ƙaruwa, yana iyakance hauhawar halin yanzu da daidaita aikin LED.

Q: Ta yaya zan fassara lambar kwandon akan odar na?

A: Lambar kwandon (misali, S1) tana ƙayyade ƙayyadaddun kewayon ƙarfin haske don wannan rukunin LED. Koyaushe duba lambar kwandon da tebur a sashe na 3 don fahimtar mafi ƙarancin haske da zaku iya tsammani a cikin ƙirar ku.

11. Misalan Aikace-aikace na Aiki

Misali 1: Panel Nuna Matsayi:Na'urar sarrafa masana'antu tana amfani da jerin waɗannan LED ɗin azaman alamun kuskure da matsayi akan gaban allon. Faɗin kusurwar dubawa na 120° yana tabbatar da cewa alamun suna bayyane ga ma'aikata daga matsayi daban-daban. Mai ƙira yana amfani da kwandon S2 don babban haske kuma yana ƙididdige resistor na jerin don halin yanzu na tuƙi na 20mA daga dogon 5V: R = (5V - 2.4V) / 0.02A = 130 Ohms (an zaɓi daidaitaccen resistor 130 ko 150 Ohm). Shimfidar PCB tana bin shawarar tsarin kafa don tabbatar da sanyawa ta atomatik da ingantattun haɗin gwiwa.

Misali 2: Hasken Baya don Maɓallan Membrane:Ana sanya LED a bayan zane mai haske a kan maɓallin membrane. Ruwa-bayyananne lens da babban ƙarfi suna ba da alama mai tsafta, mai haske daidai. A wannan yanayin, ana iya tuƙi LED a ƙaramin halin yanzu (misali, 10mA) don cimma matakin hasken baya da ake so yayin rage amfani da wutar lantarki da zafi a cikin ƙungiyar maɓalli mai rufi.

12. Gabatarwar Ka'idar Fasaha

Wannan LED ya dogara ne akan fasahar semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP). Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin gwiwar p-n, ana shigar da electrons da ramuka zuwa yankin aiki inda suke sake haɗuwa. Makamashin da aka saki yayin wannan sake haɗuwa ana fitar da shi azaman photons (haske). Takamaiman abun da ke cikin gawa na AlInGaP yana ƙayyade ƙarfin bandgap na semiconductor, wanda kai tsaye yana ƙayyade tsawon tsawon lokaci (launi) na hasken da aka fitar—a wannan yanayin, ja. Ruwa-bayyananne lens na epoxy yana aiki don kare gwaya na semiconductor, siffata fitowar hasken katako, da haɓaka fitar da haske daga guntu.

13. Trends na Masana'antu & Ci gaba

Gabaɗayan yanayin a cikin fasahar LED yana zuwa ga mafi girman inganci (ƙarin lumens kowace watt), ingantaccen daidaiton launi, da ƙarancin farashi. Ga LED irin na nuna alama kamar wannan, ƙananan ƙira yana ci gaba yayin kiyayewa ko ƙara haske. Hakanan ana ƙara mai da hankali kan faɗin kewayon zafin aiki mafi faɗi da mafi daidaito don aikace-aikacen mota da masana'antu. Ƙaura zuwa kayan da ba su da gubar da marasa halogen don bin ka'idojin muhalli yanzu ma'auni ne. Ci gaban gaba na iya haɗawa da haɗakar da'irar direba a cikin fakitin ko ingantaccen fakitin don mafi kyawun aikin zafi a manyan halayen tuƙi.