LTST-C195TBKGKT LED Mai Launuka Biyu SMD - Shaidar Fasaha - Hausa

1. Bayanin Samfur

LTST-C195TBKGKT LED ne mai launuka biyu, na'urar da ake hawa a saman (SMD) wanda aka tsara don aikace-aikacen lantarki na zamani da ke bukatar girman karami da ingantaccen aiki. Yana hada guntu biyu daban-daban na semiconductor a cikin kunshin daidaitaccen EIA: guntu na InGaN (Indium Gallium Nitride) don fitar da shudi da guntu na AlInGaP (Aluminum Indium Gallium Phosphide) don fitar da kore. Wannan tsari yana ba da damar samar da launuka da yawa ko alamun matsayi daga wurin ajiya guda.

Babban fa'idodin wannan LED sun hada da bin umarnin RoHS (Hana Abubuwa Masu Hadari), wanda ya rarrabe shi a matsayin samfurin kore. An kunna shi akan tef mai nisan milimita 8 wanda aka nannade akan reels masu diamita inci 7, wanda ya sa ya dace da kowane irin kayan hawa na atomatik masu sauri. An kuma tsara na'urar don ta dace da hanyoyin soldering na gama-gari, ciki har da infrared (IR) da reflow na vapor phase.

2. Zurfin Binciken Sigogi na Fasaha

2.1 Matsakaicin Matsayin Madaidaici

Wadannan matsayi suna bayyana iyakokin da bayan su lalacewa ta dindindin na iya faruwa ga na'urar. Ba a ba da shawarar aiki a ko kusa da wadannan iyakokin na tsawon lokaci.

• Rushewar Wutar Lantarki:Guntu Blue: 76 mW, Guntu Green: 75 mW (a Ta=25°C).
• Matsakaicin Halin Yanzu na Gaba:Blue: 100 mA, Green: 80 mA. An takaita wannan a karkashin yanayin bugun jini (1/10 aikin alhaki, 0.1ms fadin bugun) don sarrafa karuwar halin yanzu na dan lokaci.
• Halin Yanzu na Gaba DC:Matsakaicin halin yanzu na gaba na ci gaba shine 20 mA don guntu blue da 30 mA don guntu green.
• Rage Darajar Halin Yanzu:Matsakaicin halin yanzu na gaba na DC da aka yarda yana raguwa a layi daya tare da karuwar yanayin zafi na muhalli. Factor din rage darajar shine 0.25 mA/°C don blue da 0.4 mA/°C don green, farawa daga 25°C.
• Karfinsa Baya:Dukansu guntu suna da matsakaicin matsayin karfin baya na 5V. An haramta aiki na ci gaba a karkashin baya bias.
• Kewayon Zafin Jiki:Aiki: -20°C zuwa +80°C. Ajiya: -30°C zuwa +85°C.
• Jurewar Zafin Jiki na Soldering:Na'urar na iya jure soldering na wave ko infrared a 260°C na dakika 5, da soldering na vapor phase a 215°C na mintuna 3.

2.2 Halaye na Lantarki da na Gani

Wadannan sune takamaiman sigogi na aiki da aka auna a yanayin zafi na muhalli na 25°C a karkashin takamaiman yanayin gwaji.

• Karfin Hasken (Iv):An auna a halin yanzu na gaba (IF) na 20mA.
  • Blue: Mafi kankanta 28.0 mcd, Ba a takaita darajar yau da kullun ba, Mafi girma 180 mcd.
  • Green: Mafi kankanta 18.0 mcd, Ba a takaita darajar yau da kullun ba, Mafi girma 112 mcd.
• Kusurwar Dubawa (2θ1/2):Cikakken kusurwar da karfin haske ya rabi darajar axial. Na yau da kullun ga duka launuka shine digiri 130, yana nuna tsarin dubawa mai fadi.
• Matsakaicin Tsawon Tsawon (λP):Tsawon tsawon da aka fitar da karfin gani ya fi girma. Na yau da kullun: Blue: 468 nm, Green: 574 nm.
• Tsawon Tsawon Mai Girma (λd):Tsawon tsawon guda daya da idon mutum ya gane wanda ke bayyana launin. Na yau da kullun: Blue: 470 nm, Green: 571 nm.
• Fadin Bakan (Δλ):Fadin bakan fitarwa a rabin matsakaicin karfinsa. Na yau da kullun: Blue: 25 nm, Green: 15 nm.
• Karfinsa Gaba (VF):An auna a IF=20mA.
  • Blue: Na yau da kullun 3.4V, Mafi girma 3.8V.
  • Green: Na yau da kullun 2.0V, Mafi girma 2.4V.
• Halin Yanzu Baya (IR):Mafi girma 10 µA ga duka guntu lokacin da aka yi amfani da karfin baya (VR) na 5V.
• Karfin Ajiya (C):Na yau da kullun 40 pF don guntu green (an auna a VF=0V, f=1MHz). Ba a takaita don blue ba.

3. Bayanin Tsarin Binning

Don tabbatar da daidaito a aikace-aikace, ana rarraba LED bisa ga karfin hasken da aka auna. LTST-C195TBKGKT yana amfani da lambobin bin daban-daban don guntunsa na blue da green.

3.1 Rukunonin Karfin Guntu Blue

• Bin N:28.0 - 45.0 mcd
• Bin P:45.0 - 71.0 mcd
• Bin Q:71.0 - 112.0 mcd
• Bin R:112.0 - 180.0 mcd

3.2 Rukunonin Karfin Guntu Green

• Bin M:18.0 - 28.0 mcd
• Bin N:28.0 - 45.0 mcd
• Bin P:45.0 - 71.0 mcd
• Bin Q:71.0 - 112.0 mcd

An yi amfani da jurewar +/-15% ga kewayon karfin kowane bin. Wannan tsarin yana ba masu zane damar zabar LED tare da matakan haske da ake iya hasashe don takamaiman bukatun aikace-aikacensu.

4. Bincike na Lankwasa Aiki

Takardar bayanin fasaha tana nuni zuwa lankwasan aiki na yau da kullun wadanda suke mahimmanci don fahimtar halayen na'urar a karkashin yanayi daban-daban. Duk da yake ba a sake fitar da takamaiman zane-zane a cikin rubutun ba, yawanci sun hada da:

• Dangantakar Karfin Hasken da Halin Yanzu na Gaba:Yana nuna yadda fitar da haske ke karuwa tare da halin yanzu, yawanci a cikin dangantakar kusa da layi har sai jikewa.
• Karfinsa Gaba da Halin Yanzu na Gaba:Yana nuna halayen I-V na diode, wanda ke da mahimmanci don tsara da'irori masu iyakance halin yanzu.
• Dangantakar Karfin Hasken da Yanayin Zafin Muhalli:Yana kwatanta raguwar fitar da haske yayin da zafin jiki ya tashi, yana bayyana muhimmancin sarrafa zafi.
• Rarraba Bakan:Zane-zane da ke nuna karfin da aka fitar a tsawon tsawon daban-daban, wanda ya ta'allaka ne a kusa da matsakaicin tsawon tsawon da manyan tsawon tsawon.

Wadannan lankwasan suna da mahimmanci don hasashen aiki a aikace-aikacen duniya na gaske inda zafin jiki da halin turawa na iya bambanta.

5. Bayanin Injiniya da Kunshin

Na'urar ta yi daidai da daidaitaccen tsarin kunshin EIA. Muhimman bayanan girma sun hada da:

• Duk girmansu an bayar da su a cikin milimita, tare da jurewar tsoho na ±0.10 mm sai dai idan an takaita wani abu.
• Ruwan tabarau yana bayyana.
• Sanya Pin:An cimma aikin launuka biyu ta hanyar tsarin pin 4.
  • Pin 1 da 3 an sanya su ga Guntu Blue (InGaN).
  • Pin 2 da 4 an sanya su ga Guntu Green (AlInGaP).
• Takardar bayanin fasaha ta hada da cikakkun zane-zane na girma na kunshin, girmen shimfidar wurin soldering da aka ba da shawara, da zane-zane na tef da reel don jagorantar zanen PCB da hadawa.

6. Jagoran Soldering da Hada

6.1 Hanyoyin Reflow Soldering

An bayar da hanyoyin reflow na infrared (IR) guda biyu da aka ba da shawara: daya don tsarin soldering na yau da kullun (tin-lead) daya kuma don tsarin soldering maras gubar (Pb-free). An tsara tsarin maras gubar musamman don amfani da man soldering na Sn-Ag-Cu (SAC). Bin wadannan hanyoyin lokaci-zafin jiki yana da mahimmanci don hana lalacewar zafi ga kunshin LED ko haɗin wayoyi na ciki.

6.2 Tsaftacewa

Ya kamata a guji masu tsaftacewa na sinadarai da ba a takaita su ba saboda suna iya lalata kunshin LED. Idan tsaftacewa ya zama dole, ana ba da shawarar nutsar da cikin barasa na ethyl ko isopropyl a yanayin dakin na kasa da minti daya.

6.3 Yanayin Ajiya

Ga LED da aka cire daga ainihin kunshinsu na shinge na danshi, ana ba da shawarar kammala tsarin soldering na reflow na IR a cikin mako guda. Don ajiya na tsawon lokaci a waje da ainihin kunshin, ya kamata a ajiye su a cikin akwati mai rufi tare da desiccant ko a cikin yanayin nitrogen. Idan an ajiye su fiye da mako guda, ana ba da shawarar gasa a kusan 60°C na akalla awanni 24 kafin hadawa don cire danshin da aka sha da kuma hana "popcorning" yayin reflow.

7. Bayanin Kunshin da Oda

• Ana ba da LED akan tef mai daukar kaya mai nisan milimita 8 wanda aka nannade akan reels masu diamita inci 7 (178mm).
• Adadin reel na yau da kullun shine guda 4000.
• Akwai mafi kankantan adadin kunshin na guda 500 don ragowar kuri'u.
• Kunshin yana bin ka'idojin ANSI/EIA-481-1-A. An rufe ramuka marasa komai a cikin tef tare da tef mai rufi.
• Matsakaicin adadin abubuwan da suka ɓace a jere da aka yarda akan reel shine biyu.

8. Shawarwarin Amfani

8.1 Yanayin Amfani na Yau da Kullun

Wannan LED mai launuka biyu ya dace da aikace-aikace masu yawa ciki har da alamun matsayi, hasken baya don ƙananan nuni, hasken kayan ado, hasken panel, da na'urorin lantarki na mabukaci inda sarari ke cikin daraja kuma nuna launuka da yawa yana da amfani.

8.2 Abubuwan Tunani na Zane da Hanyar Turawa

Mahimmanci:LED na'urori ne masu aiki da halin yanzu. Don tabbatar da daidaiton haske lokacin turawa LED da yawa a layi daya, dole ne a sanya resistor mai iyakance halin yanzu a jere tare dakowaneLED. Wannan yana rama ƙananan bambance-bambance a cikin halayen karfin gaba (Vf) tsakanin na'urori guda ɗaya. Turawa LED a layi daya ba tare da resistors na kowane mutum ba (Circuit B a cikin takardar bayanin fasaha) na iya haifar da bambance-bambance masu yawa na haske da yuwuwar cinye halin yanzu ta LED tare da mafi ƙarancin Vf.

8.3 Kariya daga Zubar da Lantarki (ESD)

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

• Yi amfani da bandege na wuyan hannu mai kasa ko safofin hannu masu hana lantarki.
• Tabbatar cewa duk tashoshin aiki, kayan aiki, da kayan aiki suna da kasa daidai.
• Bi daidaitattun hanyoyin sarrafa ESD don hana lalacewa a ɓoye ko bala'i.

9. Kwatancen Fasaha da Bambance-bambance

Babban bambancin LTST-C195TBKGKT yana cikin tsarinsa na guntu biyu, zane na pin 4 a cikin daidaitaccen wurin ajiya na SMD. Wannan yana ba da tanadi mai yawa na sarari idan aka kwatanta da amfani da LED guda biyu masu launi guda. Amfani da InGaN don blue da AlInGaP don green yana ba da ingantacciyar inganci da ingantaccen launi ga kowane tashoshi. Fadin kusurwar dubawa na digiri 130 ya sa ya dace da aikace-aikace da ke bukatar ganuwa mai fadi.

10. Tambayoyin da ake yawan yi (Dangane da Sigogi na Fasaha)

Q: Zan iya turawa guntu blue da green lokaci guda a matsakaicin halin yanzu na DC?

A: A'a. Dole ne a yi la'akari da matsayin rushewar wutar lantarki (76mW blue, 75mW green) da zanen zafi na kunshin. Aiki lokaci guda a matsakaicin halin yanzu na iya wuce iyawar sarrafa wutar lantarki na kunshin gaba daya ko haifar da hauhawar zafin jiki mai yawa, wanda zai haifar da raguwar rayuwa ko gazawa. Dole ne a yi amfani da rage darajar tare da zafin jiki.

Q: Me yasa karfin gaba ya bambanta ga guntu blue da green?

A: Wannan saboda ainihin kaddarorin kayan na InGaN da AlInGaP semiconductors ne. Karfin bandgap na InGaN ya fi girma, yana bukatar karfin wutar lantarki mafi girma don cimma irin wannan halin yanzu, wanda ke da alaƙa da mafi girman Vf na yau da kullun na 3.4V don blue da 2.0V don green.

Q: Me ma'anar lambar bin akan lakabin reel ga zanena?

A: Lambar bin tana nuna mafi ƙarancin garanti da matsakaicin karfin haske ga LED akan wannan reel. Don daidaiton haske a cikin layin samfur, takaita kuma yi amfani da LED daga bin karfi iri ɗaya. Haɗa bin na iya haifar da bambance-bambance na haske da ake iya gani.

11. Nazarin Aikin Zane na Aiki

Yanayi:Zanen ƙaramin alamar matsayi don na'urar da ke buƙatar nuna "Jiran Aiki" (Green), "Aiki" (Blue), da "Kuskure" (matsakaicin Blue/Green).

Ai watar:LTST-C195TBKGKT guda ɗaya na iya cika duka matsayi uku. Microcontroller tare da filayen GPIO guda biyu na iya sarrafa tashoshin blue da green da kansu ta hanyar sauƙaƙan sauya transistor ko takamaiman IC masu turawa LED. Dole ne a lissafta resistors na iyakance halin yanzu na kowane mutum don kowane tashoshi bisa ga halin turawa da ake so da karfin wutar lantarki, ta amfani da ƙimar Vf na yau da kullun (3.4V don Blue, 2.0V don Green) a matsayin farkon lissafi, yayin da ake tabbatar da cewa da'irar za ta iya ɗaukar matsakaicin Vf. Wannan zanen yana adana sararin PCB da adadin abubuwan da aka haɗa idan aka kwatanta da maganin LED biyu.

12. Gabatarwa kan Ka'idar Aiki

Fitar da haske a cikin LED wani abu ne da ake kira electroluminescence. Lokacin da aka yi amfani da karfin gaba a kan mahaɗar p-n na guntu semiconductor (wanda ya wuce karfin bandgap), ana shigar da electrons da ramuka cikin yankin mahaɗar. Wadannan masu ɗaukar caji suna sake haɗuwa, suna sakin makamashi a cikin nau'in photons (haske). Launi (tsawon tsawon) na hasken da aka fitar an ƙaddara shi ta hanyar karfin bandgap na kayan semiconductor. Ana amfani da kayan InGaN don gajerun tsawon tsawon (blue, violet, green), yayin da ake amfani da kayan AlInGaP don tsawon tsawon mafi tsayi (ja, orange, rawaya, green). Ruwan tabarau "bayyana" baya launi hasken amma yana taimakawa wajen siffantar katako da kare guntu.

13. Trends na Fasaha

Ci gaban SMD LED kamar wannan na'urar ana motsa shi ta hanyar trends zuwa ƙananan ƙira, mafi ingantaccen inganci, da mafi girman haɗin kai a cikin lantarki. Amfani da kayan kamar InGaN da AlInGaP yana wakiltar cikakken fasaha, ingantaccen dandamali na fasaha. Bincike na ci gaba yana mai da hankali kan inganta ingancin quantum (ƙarin haske a cikin kowane wutar lantarki), cimma mafi girman yawan wutar lantarki a cikin ƙananan kunshin, haɓaka yanayin launi, da haɓaka sabbin dabarun kunshin don ingantaccen sarrafa zafi da aminci. Haɗa guntu da yawa ko ma microcontroller a cikin kunshin guda ɗaya ("LED masu hankali") shima yana girma trend don ingantaccen haske da aikace-aikacen nuni.