Bayanin Fasaha na LED na SMD LTST-E143EGSW - Kunshin SMD - Ja/Kore/Rawa - 20mA - Takardar Fasaha ta Hausa

1. Bayanin Samfur

LTST-E143EGSW LED ne na kunshi-sama (SMD) wanda aka tsara don hadawa ta atomatik a kan allon da'ira (PCB). Girman sa na karami ya sa ya dace da aikace-aikacen da ke da matsalar sarari a cikin kayan lantarki iri-iri.

1.1 Siffofi

• Ya bi ka'idojin RoHS (Hana Abubuwa Masu Hadari).
• An kunshi shi a cikin tef na milimita 8 akan reels masu diamita inci 7 don tsarin dauka da sanyawa ta atomatik.
• Madaidaicin madaidaicin kunshi na EIA (Tarayyar Masana'antar Lantarki).
• Matsakaicin turawa masu dacewa da IC (Da'irar Hadewa).
• An tsara shi don dacewa da kayan aikin sanyawa ta atomatik.
• Ya dace da hanyoyin siyar da IR (Infrared) reflow.
• An riga an shirya shi don hanzarta zuwa matakin 3 na JEDEC (Majalisar Injiniyan Na'urorin Lantarki) na karfin danshi.

1.2 Aikace-aikace

Ana amfani da wannan LED a matsayin mai nuna matsayi, hasken sigina, hasken alama, da hasken baya na gaban allon a sassa daban-daban, ciki har da:

• Kayan sadarwa
• Na'urorin sarrafa ofis
• Kayan amfani na gida
• Kayan aikin masana'antu

2. Girman Kunshi da Tsari

Na'urar tana da madaidaicin kunshi na SMD. Duk girmomi ana bayar da su a cikin milimita, tare da juzu'i na gaba ɗaya na ±0.2 mm sai dai idan an bayyana akasin haka. LED yana amfani da ruwan tabarau mai yaduwa.

Ayyukan fil da launukan hasken da suka dace sune kamar haka:

• Ja (AlInGaP):Fil 2 (Anode) da 1 (Cathode)
• Kore (InGaN):Fil 2 (Anode) da 4 (Cathode)
• Rawa (AlInGaP):Fil 2 (Anode) da 3 (Cathode)

Fil 2 shine anode gama gari ga duk nau'ikan launuka.

3. Ma'auni da Halaye

Duk cikakkun bayanai an ayyana su a yanayin zafin muhalli (Ta) na 25°C.

3.1 Iyakar Ma'auni Mafi Girma

Matsaloli fiye da waɗannan iyakoki na iya haifar da lalacewa na dindindin.

• Rushewar Wutar Lantarki (Pd):Ja: 75 mW, Kore: 76 mW, Rawa: 72 mW
• Matsakaicin Halin Gaba na Gaba (I_F(peak)):80 mA (ga duk launuka, a cikin zagayowar aiki 1/10, faɗin bugun jini 0.1ms)
• Matsakaicin Halin Gaba na DC (I_F):Ja: 30 mA, Kore: 20 mA, Rawa: 30 mA
• Kewayon Zafin Aiki:-40°C zuwa +100°C
• Kewayon Zafin Ajiya:-40°C zuwa +100°C

3.2 Halayen Zafi

• Matsakaicin Zafin Haɗin gwiwa (T_j):125°C
• Matsakaicin juriya na zafi, Haɗin gwiwa zuwa Muhalli (R_θJA):100 °C/W (Lura: An auna akan tushe na FR4, mai kauri 1.6mm, tare da kushin tagulla 16mm²).
• Matsakaicin juriya na zafi, Haɗin gwiwa zuwa Kushin Solder (R_θJT):60 °C/W

3.3 Shawarar Bayanin IR Reflow

Ana ba da shawarar bayanin siyar da maras gubar wanda ya dace da J-STD-020B. Bayanin yawanci ya haɗa da matakan dumama, jiƙa, reflow (tare da matsakaicin zafin jiki), da matakan sanyaya don tabbatar da haɗin gwiwar solder ba tare da lalata kunshin LED ba.

3.4 Halayen Lantarki da Na Gani

An auna a I_F= 20mA da Ta=25°C.

• Ƙarfin Hasken (I_v):
  • Ja: 140-350 mcd (mafi ƙanƙanta-maxi)
  • Kore: 710-1540 mcd (mafi ƙanƙanta-maxi)
  • Rawa: 140-390 mcd (mafi ƙanƙanta-maxi)
• Kusurwar Dubawa (2θ_1/2):Digiri 120 (na al'ada). Wannan shine cikakken kusurwar da ƙarfin ya rabi ƙimar kan-axis.
• Matsakaicin Tsawon Tsawon Tsawon (λ_d):
  • Ja: 615-630 nm
  • Kore: 518-528 nm
  • Rawa: 586-596 nm
• Ƙarfin Gaba (V_F):
  • Ja: 1.7-2.5 V
  • Kore: 2.8-3.8 V
  • Rawa: 1.7-2.5 V
• Rabin Faɗin Layin Bakan (Δλ):Ja/Rawa: 15 nm (typ), Kore: 25 nm (typ).
• Matsakaicin Halin Baya (I_R):10 μA (max) a V_R= 5V.Lura:Ba a tsara na'urar don aikin bias na baya ba; wannan ma'auni ne kawai don dalilai na gwaji.

4. Tsarin Rarrabuwa

Ana rarraba LED ɗin bisa mahimman ma'auni na gani don tabbatar da daidaito a cikin rukunin samarwa.

4.1 Rarrabuwar Ƙarfin Hasken (I_v)

Ana auna ƙarfin a cikin millicandelas (mcd) a 20mA. Juzu'i a cikin kowane kwandon shine ±11%.

• Ja:R1 (140-190 mcd), R2 (190-260 mcd), R3 (260-350 mcd)
• Kore:G1 (710-910 mcd), G2 (910-1185 mcd), G3 (1185-1540 mcd)
• Rawa:Y1 (140-180 mcd), Y2 (180-230 mcd), Y3 (230-300 mcd), Y4 (300-390 mcd)

4.2 Rarrabuwar Matsakaicin Tsawon Tsawon Tsawon (λ_d)

Ana auna tsawon tsawon a cikin nanometers (nm) a 20mA. Juzu'i a cikin kowane kwandon shine ±1 nm.

• Ja:RA (615-630 nm)
• Kore:GA (518-523 nm), GB (523-528 nm)
• Rawa:YA (586-591 nm), YB (591-596 nm)

4.3 Haɗaɗɗen Lambar Kwandon akan Alamar Samfur

Lambar alama-ɗaya akan alamar samfur tana haɗa kwandon ƙarfi da tsawon tsawon. Misali, lambar "A1" ta dace da Ja=R1, Kore=G1, Rawa=Y1. Lambobin D1-D4 suna wakiltar kwandon tsawon tsawon (Wd Rank) da kansu. Wannan tsarin yana ba da damar tantance ainihin aikin gani na LED.

5. Madaidaicin Lissafin Ayyuka

Bayanin fasaha ya haɗa da siffofi na mahimman alaƙa (a 25°C sai dai idan an lura):

• Dangantakar Ƙarfin Hasken da Matsakaicin Halin Gaba:Yana nuna yadda fitar da haske ke ƙaruwa tare da halin yanzu, yawanci a cikin yanayin da ba na layi ba, yana nuna mahimmancin turawa na halin yanzu na akai.
• Ƙarfin Gaba da Matsakaicin Halin Gaba:Yana kwatanta halayen I-V na diode, mai mahimmanci don tsara da'irar iyakance halin yanzu.
• Dangantakar Ƙarfin Hasken da Zafin Muhalli:Yana nuna tasirin kashe zafi, inda fitar da haske ke raguwa yayin da zafin haɗin gwiwa ya tashi. Wannan yana da mahimmanci ga sarrafa zafi a cikin aikace-aikacen babban wutar lantarki ko babban zafin muhalli.
• Rarraba Bakan:Yana nuna ƙarfin wutar lantarki da aka fitar a cikin tsawon tsawon, yana ayyana tsaftar launi da taimakawa a aikace-aikacen da ke buƙatar takamaiman halayen bakan.

6. Jagoran Mai Amfani da Bayanin Hada

6.1 Tsaftacewa

Idan tsaftacewa ya zama dole bayan solder ko yayin sake aiki, nutsar da LED a cikin barasa na ethyl ko barasa na isopropyl a zafin daki na ƙasa da minti ɗaya. Guji amfani da masu tsaftacewa na sinadarai waɗanda ba a bayyana ba saboda suna iya lalata ruwan tabarau na epoxy ko kunshi.

6.2 Shawarar Tsarin Kushin PCB

An ba da shawarar tsarin ƙasa (madaidaicin ƙafa) don tabbatar da ingantaccen solder, kwanciyar hankali na inji, da ingantaccen aikin zafi. Yin bin wannan tsarin yana taimakawa hana kabari kuma yana tabbatar da ingantattun filayen solder.

6.3 Kunshin Tef da Reel

Ana samar da LED ɗin a cikin tef ɗin mai ɗaukar kaya (faɗin milimita 8) wanda aka nannade akan reels masu diamita inci 7 (178mm). An bayyana cikakkun bayanai game da girman aljihun tef da cikakkun bayanai na reel (diamita na cibiya, diamita na flange, da sauransu), suna bin ka'idojin ANSI/EIA-481. Wannan kunshi yana da mahimmanci ga layukan hadawa ta atomatik.

• Madaidaicin reel ya ƙunshi guda 4000.
• Mafi ƙarancin adadin oda don ragowar shine guda 500.
• Ana ba da izinin mafi girman abubuwan da suka ɓace guda biyu a jere (aljihu mara komai) a kowane reel.

7. Gargaɗin Aikace-aikace da La'akari da Tsari

7.1 Amfani da Amincewa

An tsara waɗannan LED ɗin don kayan aikin lantarki na gabaɗaya. Don aikace-aikacen da ingantaccen aminci ya fi mahimmanci, ko inda gazawar za ta iya haifar da haɗari (misali, jirgin sama, tallafin rayuwa na likita, sarrafa sufuri), ana ba da shawarar ƙayyadaddun kimantawa na aminci da tuntuɓar masana'anta kafin shiga cikin tsari.

7.2 La'akari da Tsarin Lantarki

• Iyakance Halin Yanzu:Koyaushe yi amfani da resistor na jerin ko direba na halin yanzu na akai don iyakance halin gaba zuwa ƙayyadaddun ƙimar DC mafi girma (20mA don Kore, 30mA don Ja/Rawa). Wuce wannan zai rage tsawon rayuwa kuma zai iya haifar da gazawar bala'i.
• Kariya daga Ƙarfin Baya:LED yana da ƙaramin ƙarfin rushewar baya (yanayin gwaji na 5V). Yakamata a tsara da'irun don hana amfani da kowane bias na baya, mai yuwuwa ta amfani da diode na kariya a layi daya idan LED yana haɗe zuwa sigina mai bipolar.
• Gudanar da Zafi:Duk da yake rushewar wutar lantarki yana da ƙasa, dole ne a kiyaye zafin haɗin gwiwa ƙasa da 125°C. Tabbatar da isasshen yanki na tagulla akan PCB (kamar yadda aka ba da shawarar kushin) don zama mai sanyaya zafi, musamman a cikin yanayin zafi mai girma ko lokacin turawa a mafi girman halin yanzu.

7.3 La'akari da Tsarin Gani

• Kusurwar Dubawa:Kusurwar dubawa na digiri 120 tana ba da tsarin haske mai faɗi, mai yaduwa wanda ya dace da masu nuna matsayi. Don ƙarin haske mai mai da hankali, za a buƙaci na'urorin gani na biyu (ruwan tabarau).
• Rarrabuwa don Daidaiton Launi:Don aikace-aikacen da ke buƙatar kamannin launi iri ɗaya a cikin LED da yawa (misali, hasken baya na tsararru), ƙayyadaddun ƙananan kwandon tsawon tsawon (misali, GA ko GB don kore) yana da mahimmanci.
• Daidaitawar Ƙarfi:Hakazalika, ƙayyadaddun ƙananan kwandon ƙarfi yana tabbatar da daidaiton haske a duk masu nuna alama a cikin samfur.

8. Kwatancen Fasaha da Jagoran Zaɓi

LTST-E143EGSW yana ba da haɗakar siffofi na gama gari a cikin LED na SMD na zamani: bin ka'idojin RoHS, dacewa da IR reflow, da kunshin tef-da-reel. Babban bambance-bambancensa yana cikin takamaiman tsarin rarrabuwa don kore da rawa, yana ba da ƙarin ƙima a cikin zaɓin tsawon tsawon da ƙarfi idan aka kwatanta da wasu sassa na gabaɗaya. Fil ɗin cathode daban-daban ga kowane launi a cikin kunshi mai fil 4 yana ba da damar sarrafa kowane mutum a cikin na'urar launuka da yawa, sabanin wasu kunshin RGB na anode gama gari. Lokacin zaɓar LED, dole ne injiniyoyi su yi kwatancen ƙarfin gaba (musamman mafi girman V_Fna mutuwar InGaN kore), kusurwar dubawa, da ƙarfin haske da kasafin kuɗin wutar lantarki na aikace-aikace, tsarin gani, da hasken da ake buƙata.

9. Tambayoyin da ake yawan yi (FAQ)

Q: Zan iya turawa LED Kore a 30mA kamar na Ja da Rawa?

A: A'a. Iyakar Ma'auni Mafi Girma na halin gaba na DC akan nau'in Kore shine 20mA. Wuce wannan ma'auni na iya haifar da lalacewa na dindindin kuma ya soke garanti.

Q: Me ake nufi da "JEDEC Level 3" shirye-shirye?

A: Yana nufin cewa an gasa kayan aiki kuma/ko an adana su a ƙarƙashin yanayi mai sarrafawa don rage shan danshi a cikin kunshi, yana sa su dace da tsawon rayuwar bene na sa'o'i 168 (kwanaki 7) a yanayin masana'anta (<30°C/60%RH) kafin su buƙaci sake gasa don siyar da reflow.

Q: Me yasa kewayon ƙarfin gaba na LED Kore (2.8-3.8V) ya fi na Ja/Rawa (1.7-2.5V) girma?

A> Wannan ya samo asali ne daga ainihin kayan semiconductor. LED na Kore yawanci suna amfani da Indium Gallium Nitride (InGaN), wanda ke da mafi girman bandgap fiye da Aluminum Indium Gallium Phosphide (AlInGaP) da ake amfani da shi don LED na Ja da Rawa. Mafi girman bandgap yana buƙatar mafi girman ƙarfin lantarki don ƙarfafa electrons a cikinsa.

Q: Ta yaya zan fassara lambar kwandon "B5" daga alamar?

A: Bisa ga teburin giciye, "B5" yana nuna: Kwandon Ƙarfin Ja = R2 (190-260 mcd), Kwandon Ƙarfin Kore = G2 (910-1185 mcd), da Kwandon Ƙarfin Rawa = Y1 (140-180 mcd). Kwandon tsawon tsawon zai kasance an nuna shi ta wata lambar "D" daban (misali, D1, D2, da sauransu).

10. Misalin Shiga cikin Tsari: Allon Nuna Matsayi

Yanayi:Tsara allon sarrafawa tare da LED guda uku na matsayi: Ja (Kuskure), Kore (Shirye), Rawa (Jiran aiki). Ana buƙatar daidaitaccen haske mai girma.

Matakan Tsari:

1. Zaɓi:Zaɓi LTST-E143EGSW saboda kunshinsa na gama gari da samuwa a cikin dukkan launuka uku.
2. Rarrabuwa:Ƙayyade kwandon ƙarfi R3 don Ja, G3 don Kore, da Y4 don Rawa don samun mafi girman haske daga kowane. Ƙayyade kwandon tsawon tsawon RA don Ja, GB don Kore, da YB don Rawa don daidaitattun launuka masu cika.
3. Tsarin Da'ira:
   • Ƙarfin Wutar Lantarki (V_cc): 5V.
   • Lissafa resistors na jerin don I_F= 20mA (yi amfani da 20mA don Kore, ana iya amfani da 20-30mA don Ja/Rawa bisa ga hasken da ake so).
     • Resistor Ja (ta amfani da V na al'ada_F=2.1V): R = (5V - 2.1V) / 0.020A = 145 Ω. Yi amfani da ƙimar daidaitaccen 150 Ω.
     • Resistor Kore (ta amfani da V na al'ada_F=3.3V): R = (5V - 3.3V) / 0.020A = 85 Ω. Yi amfani da ƙimar daidaitaccen 82 Ω ko 91 Ω.
     • Resistor Rawa (ta amfani da V na al'ada_F=2.1V): Irin wannan Ja, 150 Ω.
   • Wutar lantarki kowane LED: P = V_F* I_F. Don Kore: ~66mW, wanda yake cikin iyakar 76mW.
4. Tsarin PCB:Yi amfani da shawarar tsarin kushin. Haɗa Fil 2 (anode gama gari) zuwa V_ccta hanyar resistors. Haɗa Fil 1, 4, da 3 (cathodes don Ja, Kore, Rawa bi da bi) zuwa ƙasa ta hanyar fil ɗin microcontroller ko maɓalli don sarrafa kowane mutum.
5. Binciken Zafi:Tare da rushewar wutar lantarki ƙasa da 75mW kowane LED da kushin 16mm², hawan zafin haɗin gwiwa zai zama ƙanƙanta a cikin yanayin cikin gida na al'ada, yana tabbatar da aminci na dogon lokaci.