Bayanin Fasaha na Dual Color SMD LED LTST-C155TBKFKT - Blue & Orange - 20mA & 30mA

1. Bayyani Game da Samfurin

Wannan takarda ta yi cikakken bayani game da ƙayyadaddun bayanai na LED mai launi biyu, wanda aka haɗa a cikin na'urar da ake haɗawa a saman (SMD). Na'urar ta haɗa guntu biyu daban-daban na semiconductor a cikin marufi ɗaya: guntu na InGaN (Indium Gallium Nitride) wanda ke fitar da hasken shuɗi da guntu na AlInGaP (Aluminum Indium Gallium Phosphide) wanda ke fitar da hasken lemu. Wannan ƙirar tana ba da damar ƙirƙirar hanyoyin haske biyu masu zaman kansu ko, ta hanyar sarrafa tuƙi, yuwuwar haɗa launuka a aikace-aikace. An yi marufin LED a cikin tef da reel wanda ya dace da tsarin haɗawa na atomatik, yana bin ka'idojin marufi na EIA. An ƙera shi a matsayin samfurin RoHS da kore.

1.1 Siffofi na Asali da Aikace-aikacen Manufa

Babban fa'idar wannan LED shine ikon sa na launi biyu a cikin ƙaramin matakin SMD. Manyan siffofi sun haɗa da haske mai ƙarfi sosai daga duka fasahohin guntu, dacewa da tsarin haɗaƙa na infrared (IR) da tururi, da ƙira don haɗawa da kayan aikin haɗawa na atomatik. Dacewar sa da I.C. tana nuna cewa ana iya tuƙa shi kai tsaye ta hanyar siginar matakin dabaru na yau da kullun tare da iyakancewar halin yanzu. Aikace-aikacen yau da kullun sun haɗa da alamomin yanayi, hasken baya don maɓalli da bangarori, hasken ado, da na'urorin lantarki na mabukaci inda sarari ya yi ƙarami kuma ana buƙatar launuka masu nuni da yawa daga wurin sashi ɗaya.

2. Iyakar Ma'auni Mafi Girma

Aiki ko adana na'urar fiye da waɗannan iyakoki na iya haifar da lalacewa ta dindindin.

• Rushewar Wutar Lantarki:Shuɗi: 76 mW, Lemu: 75 mW (a Ta=25°C)
• Matsakaicin Halin Yanzu na Gaba:Shuɗi: 100 mA, Lemu: 80 mA (1/10 aikin aiki, 0.1ms faɗin bugun jini)
• Halin Yanzu na Gaba na DC:Shuɗi: 20 mA, Lemu: 30 mA
• Rage Ƙimar:Shuɗi: 0.25 mA/°C, Lemu: 0.4 mA/°C (layi daga 25°C)
• Ƙarfin Wutar Lantarki na Baya:5 V ga duka launuka (Lura: Ba za a iya ci gaba da aiki a cikin karkatar da baya ba)
• Yanayin Aiki & Adana Zafin Jiki:-55°C zuwa +85°C
• Zafin Haɗaƙa:Wave/IR: 260°C na 5 seconds mafi yawa; Tururi: 215°C na 3 minutes mafi yawa.

3. Halaye na Lantarki da na Gani

An auna a yanayin zafi na muhalli (Ta) na 25°C ƙarƙashin ƙayyadaddun yanayin gwaji.

3.1 Ma'auni na Gani (a IF=20mA)

• Ƙarfin Hasken (Iv):
  
  Shuɗi: Mafi ƙanƙanta 28.0 mcd, Na yau da kullun 45.0 mcd.
  
  Lemu: Mafi ƙanƙanta 45.0 mcd, Na yau da kullun 90.0 mcd.
  
  An auna tare da firikwensin / tacewa wanda ya kusanci lanƙwan amsawar ido na CIE photopic.
• Kusurwar Dubawa (2θ1/2):Na yau da kullun digiri 130 ga duka launuka. Wannan shine cikakken kusurwar da ƙarfin ya ragu zuwa rabin ƙimar sa akan axis.
• Matsakaicin Tsawon Tsawon (λP):Shuɗi: Na yau da kullun 468 nm, Lemu: Na yau da kullun 611 nm.
• Mafi Girman Tsawon Tsawon (λd):Shuɗi: Na yau da kullun 470 nm, Lemu: Na yau da kullun 605 nm. An samo shi daga zanen launi na CIE, wannan yana bayyana launin da ake gani.
• Faɗin Bakan Siffa (Δλ):Shuɗi: Na yau da kullun 25 nm, Lemu: Na yau da kullun 17 nm.

3.2 Ma'auni na Lantarki

• Ƙarfin Wutar Lantarki na Gaba (VF) a IF=20mA:
  
  Shuɗi: Mafi ƙanƙanta 2.80V, Na yau da kullun 3.50V, Mafi girma 3.80V.
  
  Lemu: Mafi ƙanƙanta 1.80V, Na yau da kullun 2.00V, Mafi girma 2.40V.
• Halin Yanzu na Baya (IR):Mafi girma 10 μA ga duka a VR=5V.
• Ƙarfin Ƙarfi (C):Na yau da kullun 40 pF ga Lemu a VF=0V, f=1MHz.

4. Tsarin Rarraba

Ana rarraba LED ɗin zuwa kwandon asusu bisa ƙarfin haske don tabbatar da daidaito a cikin rukunin samarwa.

4.1 Rarraba Ƙarfin Hasken

Guntu Shuɗi (@20mA):

Lambar N: 28.0 - 45.0 mcd

Lambar P: 45.0 - 71.0 mcd

Lambar Q: 71.0 - 112.0 mcd

Lambar R: 112.0 - 180.0 mcd

Guntu Lemu (@20mA):

Lambar P: 45.0 - 71.0 mcd

Lambar Q: 71.0 - 112.0 mcd

Lambar R: 112.0 - 180.0 mcd

Jurewa a cikin kowane kwandon ƙarfi shine +/-15%.

5. Bincike na Lanƙwan Ayyuka

Bayanin bayanin yana nuni zuwa lanƙwan halaye na yau da kullun waɗanda galibi za su kwatanta alaƙa tsakanin mahimman ma'auni. Masu ƙira ya kamata su yi la'akari da waɗannan alaƙar da ba ta layi ba.

5.1 Halin Yanzu na Gaba da Ƙarfin Wutar Lantarki na Gaba (Lanƙwan I-V)

Duka LED ɗin suna nuna halayen I-V mai kama da diode. LED ɗin Shuɗi (InGaN) yana da mafi girman ƙarfin wutar lantarki na gaba na yau da kullun (~3.5V) idan aka kwatanta da LED ɗin Lemu (AlInGaP) (~2.0V) a 20mA. Wannan bambancin ƙarfin wutar lantarki yana da mahimmanci ga ƙirar da'ira, musamman lokacin tuƙa duka launuka daga layin wutar lantarki guda ɗaya, saboda yana buƙatar ƙimar resistor daban-daban don cimma manufar halin yanzu ɗaya.

5.2 Ƙarfin Hasken da Halin Yanzu na Gaba

Ƙarfin haske yana kusan daidai da halin yanzu na gaba a cikin kewayon aikin da aka ba da shawarar. Duk da haka, inganci na iya raguwa a halin yanzu mai yawa saboda ƙarin zafi. Ƙayyadaddun ƙimar rage ƙima (0.25 mA/°C ga Shuɗi, 0.4 mA/°C ga Lemu) suna nuna yadda dole ne a rage matsakaicin halin yanzu na DC yayin da yanayin zafi ya tashi sama da 25°C don hana yin zafi da tabbatar da tsawon rai.

5.3 Rarraba Siffa

Guntu Shuɗi yana fitarwa a cikin kewayon ~468-470 nm tare da faɗin bakan siffa mai faɗi na 25 nm (Na yau da kullun). Guntu Lemu yana fitarwa a cikin kewayon ~605-611 nm tare da ƙunƙuntaccen bandwidth na 17 nm (Na yau da kullun). Ƙimar tsawon tsawon mafi girma yana da mahimmanci ga aikace-aikacen launi mai mahimmanci.

6. Bayanan Injiniya da Marufi

6.1 Ayyukan Fil da Polarity

Na'urar tana da fil guda huɗu. Don bambancin LTST-C155TBKFKT:

- Guntu Shuɗi na InGaN yana haɗe da fil 1 da 3.

- Guntu Lemu na AlInGaP yana haɗe da fil 2 da 4.

Wannan tsari yawanci yana ba da damar sarrafa kowane launi da kansa. Ruwan tabarau yana da ruwa bayyananne.

6.2 Girman Marufi da Tef/Reel

Ana ba da LED ɗin a cikin tef mai ɗaukar kaya mai faɗi 8mm akan reels mai diamita 7-inch (178mm). Matsakaicin adadin reel shine guda 4000. Bayanin bayanin ya haɗa da cikakkun zane-zane masu girma don jikin LED, shirin fil ɗin haɗaƙa da aka ba da shawarar (tsarin ƙasa), da ƙayyadaddun tef & reel, waɗanda suka dace da ANSI/EIA 481-1-A-1994. Duk girmansu suna cikin millimeters tare da matsakaicin jurewa na ±0.10 mm sai dai idan an faɗi akasin haka. Ƙirar fil ɗin da ya dace yana da mahimmanci don haɗaƙa abin dogaro da kwanciyar hankali na injiniya.

7. Jagororin Haɗaƙa da Haɗawa

7.1 Bayanan Haɗaƙa Reflow

Bangaren ya dace da tsarin reflow na yau da kullun. An ba da shawarar bayanan reflow na infrared (IR) guda biyu: ɗaya don tsarin haɗaƙa na yau da kullun (tin-lead) da ɗaya don tsarin haɗaƙa mara gubar (misali, SnAgCu). Mahimman ma'auni sun haɗa da:

- Dafaffen:Hawa zuwa 120-150°C.

- Lokacin Jiƙa/Dafaffen:Mafi yawan dakika 120.

- Matsakaicin Zafin Jiki:Mafi yawan 260°C.

- Lokaci Sama da Liquidus:5 seconds mafi yawa a matsakaicin zafin jiki.

Bin waɗannan bayanan yana hana girgizar zafi da lalata marufin LED ko mutuwa.

7.2 Haɗaƙa Wave da Hannu

Don haɗaƙa igiyar ruwa, dafaffen bai kamata ya wuce 100°C ba na mafi yawan dakika 60, tare da igiyar haɗaƙa a matsakaicin 260°C har zuwa dakika 10. Idan haɗaƙa da hannu tare da ƙarfe ya zama dole, zafin ƙarshen bai kamata ya wuce 300°C ba, kuma lokacin tuntuɓar ya kamata a iyakance zuwa dakika 3 a kowane haɗin gwiwa, sau ɗaya kawai, don hana wuce gona da iri na zafi.

7.3 Tsaftacewa da Ajiya

Tsaftacewa:Kawai ya kamata a yi amfani da wakilan tsaftacewa da aka ƙayyade. Ana ba da shawarar barasa isopropyl ko barasa ethyl a yanayin zafi na yau da kullun na ƙasa da minti ɗaya. Sinadarai da ba a bayyana ba na iya lalata ruwan tabarau na epoxy ko marufi.

Ajiya:Don ajiyar dogon lokaci a waje da jakar shinge na danshi ta asali, ya kamata a ajiye LED ɗin a cikin yanayi wanda bai wuce 30°C da 70% danshi ba. Don ajiya mai tsawo, yi amfani da akwati mai rufi tare da bushewa ko yanayin nitrogen. Abubuwan da aka fallasa ga iskar muhalli fiye da mako guda ya kamata a gasa a kusan 60°C na aƙalla sa'o'i 24 kafin haɗaƙa don cire danshin da aka sha da hana \"popcorning\" yayin reflow.

8. La'akari da Ƙirar Aikace-aikace

8.1 Ƙirar Da'irar Tuƙi

LED ɗin na'urori ne masu aiki da halin yanzu. Don tabbatar da haske iri ɗaya da hana lalacewa, tsarin iyakancewar halin yanzu ya zama dole. Da'irar da aka ba da shawarar (Da'irar A) tana amfani da resistor na jeri don kowane LED. Ƙimar resistor (R) ana ƙididdige ta ta amfani da Dokar Ohm: R = (V_supply - V_F_LED) / I_F, inda V_F_LED shine ƙarfin wutar lantarki na gaba na takamaiman LED a halin yanzu da ake so I_F. Saboda bambancin a cikin V_F (duba rarraba da kewayon yau da kullun), ba a ba da shawarar tuƙa LED ɗin da yawa a layi daya daga tushen wutar lantarki guda ɗaya tare da raba resistor (Da'irar B), saboda zai iya haifar da rashin daidaito mai yawa na halin yanzu da rashin daidaiton haske.

8.2 Kariya daga Zubar da Wutar Lantarki (ESD)

LED yana da hankali ga zubar da wutar lantarki da hawan wutar lantarki. Dole ne a ɗauki matakan kariya yayin sarrafawa da haɗawa:

- Yi amfani da igiyoyin wuyan da aka kafa ko safofin hannu masu hana tashin hankali.

- Tabbatar cewa duk wuraren aiki, kayan aiki, da kayan aiki suna da tushe da kyau.

- Aiwatar da tsarin marufi da sufuri mai aminci na ESD.

Rashin kiyaye matakan kariya na ESD na iya haifar da gazawa nan take ko lalacewa a ɓoye wanda ke rage dogon lokacin dogaro.

8.3 Gudanar da Zafin Jiki

Yayin da rushewar wutar lantarki ya yi ƙasa kaɗan, ƙirar zafi mai dacewa tana tsawaita tsawon rai da kuma kiyaye aikin gani. Lanƙwan rage ƙimar suna ƙayyade yadda matsakaicin halin yanzu dole ne ya ragu tare da hawan yanayin zafi. Tabbatar da isasshen yanki na tagulla akan PCB a kusa da filayen zafi na LED (idan akwai) ko hanyoyin zuwa matakan ciki na iya taimakawa wajen watsar da zafi, musamman a cikin aikace-aikacen yanayi mai zafi ko rufaffiyar.

9. Kwatancen Fasaha da Bambance-bambance

Babban bambance-bambancen wannan LED mai launi biyu yana cikin guntu biyu daban-daban, masu haske mai ƙarfi a cikin marufin SMD na yau da kullun. Idan aka kwatanta da amfani da LED ɗin launi ɗaya daban-daban guda biyu, yana adana sararin PCB, yana rage adadin abubuwan, kuma yana sauƙaƙa haɗawa da zaɓi. Amfani da InGaN don shuɗi yana ba da inganci mafi girma da haske fiye da tsofaffin fasahohi kamar GaP. Fasahar AlInGaP don lemu tana ba da inganci mai girma da ingantaccen launi a cikin bakan ja-lemu-amber. Haɗin gwiwar yana ba da damar sassauƙa a cikin ƙira a cikin nuni na yanayi (misali, shuɗi don jiran aiki, lemu don aiki/kuskure) ko gauraya launi mai sauƙi.

10. Tambayoyin da ake yawan yi (FAQ)

Q1: Shin zan iya tuƙa duka LED ɗin shuɗi da lemu lokaci guda a cikin cikakken ƙimar halin yanzu?

A1: An ƙayyade Iyakar Ma'auni Mafi Girma a kowane guntu. Jimillar rushewar wutar lantarki don marufin zai zama jimillar ɓarnar daga kowane guntu mai aiki. Dole ne ku tabbatar cewa jimillar nauyin zafi bai wuce ikon marufin na watsar da zafi ba, musamman a yanayin zafi mai girma. Tuntubi ƙayyadaddun ƙimar rage ƙima.

Q2: Me yasa ƙarfin wutar lantarki na gaba ya bambanta sosai tsakanin guntu shuɗi da lemu?

A2: Ƙarfin wutar lantarki na gaba dukiya ce ta asali na bandgap na kayan semiconductor. InGaN (shuɗi) yana da faɗin bandgap (~3.4 eV) fiye da AlInGaP (lemu/ja, ~2.0 eV), wanda kai tsaye yana haifar da mafi girman ƙarfin wutar lantarki na gaba da ake buƙata don cimma watsawa da fitar da haske.

Q3: Menene bambanci tsakanin tsawon tsawon madaidaiciya da tsawon tsawon mafi girma?

A3: Tsawon tsawon madaidaiciya (λP) shine tsawon tsawon da rarraba ikon siffa ya fi girma. Tsawon tsawon mafi girma (λd) shine tsawon tsawon guda ɗaya na hasken monochromatic wanda zai bayyana yana da launi ɗaya da fitowar LED idan aka kwatanta da ma'anar farin farin. Ga LED ɗin da ke da siffa mai daidaito, galibi suna kusa. Don siffofi masu karkata, λd ya fi wakiltar launin da ake gani.

Q4: Ta yaya zan fassara lambobin kwandon ƙarfi lokacin yin oda?

A4: Lambar kwandon (misali, N, P, Q, R) tana bayyana tabbataccen mafi ƙanƙanta da mafi girman kewayon ƙarfin haske don LED a halin yanzu na gwaji. Ƙayyade lambar kwandon yana tabbatar da cewa kuna karɓar LED ɗin tare da daidaitaccen haske a cikin wannan kewayon. Misali, yin oda daga Kwandon \"P\" don guntu lemu yana ba da garantin ƙarfi tsakanin 45.0 da 71.0 mcd a 20mA.

11. Nazarin Ƙira da Amfani

Yanayi: Alamar Yanayi Biyu don Router na Cibiyar Sadarwa

Mai ƙira yana buƙatar alamomin yanayi biyu (\"Kunna Wutar Lantarki/Jiran Aiki\" da \"Ayyukan Cibiyar Sadarwa\") amma yana da sarari don ramin nuni na LED guda ɗaya kawai a bangon gaba. Yin amfani da LTST-C155TBKFKT yana ba da mafita mai kyau.

Ai watar:LED ɗin shuɗi yana haɗe da siginar \"Wutar Lantarki\" ta hanyar resistor mai iyakancewar halin yanzu wanda aka ƙididdige shi don 15mA (misali, R = (3.3V - 3.5V)/0.015A, yana buƙatar ɗan gyara kaɗan zuwa ƙarfin wutar lantarki ko ƙimar resistor bisa Vf na yau da kullun). LED ɗin lemu yana haɗe da siginar bugun jini daga mai sarrafa cibiyar sadarwa, yana walƙiya don nuna ayyukan bayanai. Za a iya shirna firmware ɗin microcontroller don kuma amfani da duka LED ɗin don yanayi na uku (misali, lemu mai ƙarfi don yanayin kuskure). Wannan ɓangaren guda ɗaya yana cika ayyuka da yawa, yana adana sarari, farashin haɗawa, da sauƙaƙa lissafin kayan idan aka kwatanta da mafita ta LED biyu.

12. Ka'idojin Fasaha

Fitar da haske a cikin waɗannan LED ɗin ya dogara ne akan electroluminescence a cikin kayan semiconductor bandgap kai tsaye. Lokacin da aka yi amfani da ƙarfin wutar 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 sake haɗuwa ana fitar da shi azaman photon. Tsawon tsawon (launi) na wannan photon an ƙaddara shi ta hanyar ƙarfin bandgap (Eg) na kayan semiconductor, bisa ga lissafin λ ≈ 1240/Eg (nm), inda Eg yake cikin electron-volts (eV). Ana amfani da kayan InGaN don gajerun tsawon tsawon (shuɗi, kore, fari), yayin da ake amfani da kayan AlInGaP don tsayin tsawon tsawon (rawaya, lemu, ja). Ruwan tabarau \"ruwa bayyananne\" yawanci an yi shi da epoxy ko silicone wanda ke bayyana ga tsayin tsawon da aka fitar.

13. Trends na Masana'antu

Trend a cikin SMD nuna LED yana ci gaba da zuwa ga inganci mafi girma (ƙarin fitowar haske a kowace naúrar wutar lantarki), ƙananan girman marufi, da haɓaka haɗin kai. LED ɗin masu launi biyu da yawa a cikin marufi ɗaya suna zama ruwan dare don tallafawa nuni mai rikitarwa da ƙanƙanta. Hakanan akwai ƙaƙƙarfan tuƙi don ingantaccen dogaro a ƙarƙashin yanayi mai tsanani (zafi mafi girma, danshi) da dacewa da tsarin haɗaƙa mara gubar (mara gubar) da zafi mai zafi da masana'antar kera lantarki ta zamani ke buƙata. Bugu da ƙari, buƙatar daidaiton launi daidai da ƙuntataccen jurewa na rarraba yana girma don aikace-aikace a cikin motoci na ciki, na'urorin mabukaci, da kayan aiki na ƙwararru inda asalin alama da ƙwarewar mai amfani ke da alaƙa da alamun gani daidai.