Bayanin Fasaha na Nunin LED na LTD-3812SW-P - Tsawon Lamba 0.3-inch - Farar Launi - Halin Gaba na 5mA - Takardun Fasaha na Hausa

1. Duba Samfur

LTD-3812SW-P na'urar da aka tsara don nunawa a saman (SMD) a matsayin nunin lambobi biyu. Babban aikinta shine samar da bayanan lambobi masu tsabta da bayyane a cikin kayan lantarki. Babban fasahar ta dogara ne akan guntayen LED na farar InGaN (Indium Gallium Nitride) da aka dora akan tushen sapphire. Wannan haɗin yana samar da nunin da ke da fuskar baƙi da sassuna fari, yana ba da bambanci mai kyau don sauƙin karantawa.

1.1 Muhimman Siffofi da Fa'idodi

An ƙera nunin don aiki da aminci a cikin na'urorin lantarki na zamani. Saitin siffofinsa yana magance buƙatun gama gari don aikace-aikacen nuni da nunawa.

• Girman Lamba:Yana da tsayin harafi na 0.3-inch (7.62 mm), wanda ya sa ya dace da aikace-aikace inda sarari ya yi ƙarami amma karantawa yana da mahimmanci.
• Ingancin Gani:Yana ba da sassa masu ci gaba, iri ɗaya don kamanni na gani mai daidaito, haske mai ƙarfi, da kusurwar kallo mai faɗi.
• Yana buƙatar ƙaramin wutar lantarki don aiki kuma an gina shi da amincin ƙwaƙƙwaran jiki, yana tabbatar da tsawon rayuwar sabis.
• Daidaituwa:Ana rarraba na'urori (a cikin kwandon shara) don ƙarfin haske da launi, yana ba da damar ci gaba da aiki a cikin samarwa mai yawa.
• Yin Biyayya ga Muhalli:Kunshin ba shi da gubar kuma ya bi ka'idojin RoHS (Ƙuntata Abubuwa Masu Hadari).

2. Zurfin Binciken Bayanan Fasaha

Wannan sashe yana ba da cikakken bincike na haƙiƙa, game da iyakokin aiki da halayen aikin na'urar a ƙarƙashin ƙayyadaddun yanayi.

2.1 Matsakaicin Matsakaicin Ƙimar

Waɗannan ƙimar suna wakiltar iyakokin damuwa waɗanda sama da su lalacewar dindindin na iya faruwa ga na'urar. Ba a ba da shawarar aiki a ko kusa da waɗannan iyakokin don ingantaccen aiki.

• Rashin Wutar Lantarki Kowane Bangare:35 mW matsakaici.
• Matsakaicin Halin Gaba Kowane Bangare:50 mA (ƙarƙashin yanayin bugun jini: 1/10 aikin aiki, faɗin bugun 0.1ms).
• Ci gaba da Halin Gaba Kowane Bangare:10 mA a 25°C. Wannan ƙimar tana raguwa a layi daya a 0.11 mA/°C yayin da yanayin yanayi (Ta) ya karu sama da 25°C.
• Yanayin Zafin Jiki:Yanayin aiki da adanawa shine daga -35°C zuwa +105°C.
• Jurewar Solder:Na'urar na iya jure solder na ƙarfe a 260°C na tsawon dakika 3, tare da ƙarshen ƙarfe aƙalla 1/16 inch ƙasa da matakin wurin zama.

2.2 Halayen Lantarki da Na Gani

Waɗannan su ne madaidaicin sigogi na aiki da aka auna a yanayin yanayi (Ta) na 25°C da halin gaba (IF) na 5 mA, wanda shine daidaitaccen yanayin gwaji.

• Ƙarfin Hasken (IV):Ya bambanta daga mafi ƙarancin 71 mcd zuwa matsakaicin 165 mcd kowace guntu. Ana auna ƙarfin ta amfani da haɗin firikwensin da ke kusa da madaidaicin lanƙwasa amsawar ido na photopic (CIE).
• Ma'auni na Launi (x, y):An ayyana shi akan zanen launi na CIE 1931. Madaidaicin ƙimar da aka bayar sune x=0.294 da y=0.286, suna nuna wurin fari.
• Ƙarfin Lantarki na Gaba (VF):Kowace guntu, yawanci tsakanin 2.7V da 3.2V a 5mA.
• Halin Baya (IR):Matsakaicin 100 µA a ƙarfin lantarki na baya (VR) na 5V. Wannan siga ne don dalilai na gwaji kawai; ba a ƙera LED don ci gaba da aikin bias na baya ba.
• Daidaitawar Ƙarfin Hasken:Matsakaicin ƙarfin haske tsakanin sassa a cikin yanki mai haske iri ɗaya shine 2:1 ko mafi kyau, yana tabbatar da kamanni iri ɗaya.
• Maganar Ketare:An ƙayyade zai zama ≤ 2.5%, yana rage hasken da ba a so na kusa da kashe sassa.

2.3 Hatsarin Zubar da Lantarki (ESD)

Kamar yawancin na'urorin semiconductor, waɗannan LED ɗin suna da saukin lalacewa daga zubar da lantarki. Takardun bayanan suna ba da shawarar da ƙarfi ayyukan rigakafin ESD na yau da kullun: amfani da abin wuya na ƙasa ko safofin hannu masu hana lantarki, tabbatar da cewa duk tashoshi na aiki da kayan aiki suna da ƙasa da kyau, da kuma amfani da ionizers don kawar da cajin lantarki da zai iya taruwa akan kunshin filastik yayin sarrafawa.

3. Bayanin Tsarin Kwandon Shara

Don tabbatar da daidaito, ana rarraba LED ɗin cikin kwandon shara bisa mahimman sigogi. Wannan yana ba masu ƙira damar zaɓar sassa tare da halaye masu matsi don aikace-aikacensu.

3.1 Ƙarfin Lantarki na Gaba (VF) Kwandon Shara

Ana rarraba LED ɗin cikin kwandon shara (3 zuwa 7) bisa ga raguwar ƙarfin lantarki na gaba a 5mA. Kowane kwandon shara yana da kewayon 0.1V (misali, Kwandon Shara 3: 2.70V-2.80V, Kwandon Shara 4: 2.80V-2.90V), tare da jurewar ±0.1V a cikin kowane kwandon shara. Wannan yana taimakawa wajen ƙira da'irori masu ƙarfi na tuƙi.

3.2 Ƙarfin Hasken (IV) Kwandon Shara

Ana rarraba fitarwar haske ta amfani da lambobi kamar Q11, Q12, R11, da sauransu. Kowane kwandon shara yana ayyana takamaiman kewayon millicandela (mcd) da aka fitar a 5mA (misali, Q11: 71.0-81.0 mcd, R21: 146.0-165.0 mcd). Jurewar ƙarfin haske a cikin kwandon shara shine ±15%.

3.3 Hue (Launi) Kwandon Shara

An sarrafa launin hasken fari daidai ta hanyar kwandon shara na hue (S1-2, S2-2, S3-1, da sauransu). An ayyana kowane kwandon shara ta wurin yanki mai siffar huɗu akan zanen launi na CIE 1931, yana ƙayyade izinin kewayon ma'auni na x da y. Jurewar ma'auni na launi (x, y) a cikin kwandon shara shine ±0.01. Zane a cikin takardun bayanan yana nuna waɗannan kwandon shara a zahiri.

4. Bayanin Injiniya da Kunshi

4.1 Girman Kunshi

Na'urar ta yi daidai da takamaiman sawun SMD. An ba da duk mahimman girma a cikin milimita, tare da jurewar gabaɗaya na ±0.25 mm sai dai idan an ƙayyade in ba haka ba. Takardun bayanan kuma ta haɗa da bayanin kan lahani na kayan ado da aka yarda da su, kamar iyakoki akan abubuwan waje, gurɓataccen tawada, kumfa a cikin sassa, lanƙwasa na mai nuni, da burrs na filastik.

4.2 Tsarin Fil da Zanen Kewayawa

LTD-3812SW-P nunin anode gama gari ne. Zanen da'irar ciki yana nuna haɗin kai na sassan LED don lambobi uku (ko da yake na'urar nunin lambobi biyu ce, pinout yana nuna ƙira mai dacewa da sawun lamba uku). Teburin haɗin fil yana lissafa aikin kowane fil 10 a sarari: misali, Fil 1 shine anode gama gari don Lamba 1, Fil 2 shine cathode don sassa D2 & D3, da sauransu. An lura da Fil 10 a matsayin \"Babu Haɗin kai.\"

5. Jagororin Solder da Taro

5.1 Umarnin Solder na SMT

An yi niyya don na'urar don hanyoyin solder na reflow. An ƙayyade mahimman sigogi don hana lalacewar zafi.

• Iyakar Tsarin Reflow:Na'urar na iya jure matsakaicin zagaye biyu na solder na reflow. Dole ne a bar taron ya yi sanyi zuwa yanayin zafi na yau da kullun tsakanin zagaye na farko da na biyu.
• Bayanan Reflow:Ana ba da shawarar zafin jiki na pre-heat shine 120-150°C na matsakaicin dakika 120. Matsakaicin zafin jiki yayin reflow bai kamata ya wuce 260°C ba.
• Solder na Hannu:Idan ana amfani da ƙarfe na solder, zafin ƙarshen bai kamata ya wuce 300°C ba, kuma lokacin tuntuɓar ya kamata a iyakance shi zuwa matsakaicin dakika 3.

5.2 Tsarin Solder da Aka Ba da Shawara

An ba da tsarin ƙasa (sawu) don jagorantar shimfidar PCB. Wannan ya haɗa da daidaitaccen geometry na pad da yankin yanke, wanda ke da mahimmanci don samar da haɗin gwiwar solder da kyau da hana gada solder.

6. Ƙayyadaddun Kunshi

Ana samar da abubuwan akan kundi na tef da reel don haɗawa ta atomatik. An ba da cikakkun girma don reel ɗin tattarawa da tef ɗin mai ɗaukar kaya, gami da diamita na reel, faɗin tef, tazarar aljihu, da tsayin jagora/tirela. Wani zane yana nuna alkibla don jan tef yayin saitin mai ciyarwa.

7. Bayanan Aikace-aikace da Abubuwan Ƙira

7.1 Yanayin Aikace-aikace na Yau da Kullun

LTD-3812SW-P ya dace da aikace-aikacen da ke buƙatar ƙananan nunin lambobi masu aminci. Wannan ya haɗa da kayan lantarki na mabukaci (misali, tanda microwave, na'urorin sanyaya iska, kayan aikin sauti), kayan aikin masana'antu (mitoci na panel, karatun sarrafawa), nunin ciki na mota (inda ake nuna zafin jiki da sauran matsayi), da mu'amalar na'urar likita.

7.2 Abubuwan Ƙira

• Tukin Halin Yanzu:Koyaushe yi amfani da direba mai ci gaba ko resistor mai iyakancewa a jere tare da kowane anode gama gari ko cathode na bangare. Dole ne ƙirar ta mutunta matsakaicin matsakaicin halin yanzu na ci gaba kuma ta aiwatar da raguwar farashi da kyau tare da zafin jiki.
• Haɗawa:A matsayin nunin anode gama gari tare da keɓancewar cathode na bangare, ya dace da da'irori na tuƙi masu yawa, waɗanda ke rage adadin filolin microcontroller I/O da ake buƙata.
• Kariya ta ESD:Haɗa diodes na kariya na ESD akan layukan PCB da aka haɗa zuwa filolin nuni, musamman idan nunin yana samun damar mai amfani.
• Gudanar da Zafin Jiki:Tabbatar cewa shimfidar PCB tana ba da isasshen taimako na zafi, musamman idan ana aiki kusa da matsakaicin ƙima ko a cikin yanayin zafi mai girma.

8. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da tsofaffin fasahohi kamar LED ja GaAsP ko nunin fluorescent na vacuum (VFDs), farar LED na tushen InGaN yana ba da mafi girman haske, mafi faɗin kusurwoyin kallo, ƙarancin amfani da wutar lantarki, da tsawon rayuwa. A cikin rukuninsa, mahimman bambance-bambancen LTD-3812SW-P sune takamaiman tsayin lamba na 0.3-inch, daidaitaccen kwandon shara don ƙarfi da launi, ginin sa mai biyayya ga RoHS, da cikakken ƙayyadaddun don dacewar taron SMT.

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

Q: Menene manufar lanƙwasa raguwar farashi don halin gaba?

A: Lanƙwasa raguwar farashi (0.11 mA/°C sama da 25°C) yana da mahimmanci ga aminci. Yayin da zafin haɗin LED ya tashi, ikonsa na kawar da zafi yana raguwa. Rage halin yanzu yana hana guduwar zafi kuma yana tabbatar da zafin haɗin ya kasance cikin iyakoki masu aminci, yana adana fitarwar haske da tsawon rayuwa.

Q: Me yasa akwai kwandon shara don launi?

A: Tsarin samarwa na LED fari ya ƙunshi jujjuyawar phosphor, wanda zai iya haifar da ɗan bambanci a cikin takamaiman inuwar fari. Kwandon shara yana rarraba LED tare da kusan ma'auni iri ɗaya na launi. Wannan yana da mahimmanci a cikin aikace-aikacen lambobi da yawa ko na'urori da yawa don guje wa rashin daidaituwar launi na gani tsakanin nunin kusa ko sassa.

Q: Zan iya tuƙa wannan nunin tare da filin microcontroller na 3.3V kai tsaye?

A: A'a. Ƙarfin lantarki na gaba (VF) na guntayen LED yawanci shine 2.7-3.2V. Haɗa wadatar 3.3V kai tsaye zuwa anode (ta hanyar resistor) zai iya ƙyallen LED da ƙarfi ko ba a yi ba, ya danganta da ainihin VF. Ana buƙatar da'irar direba daidai don samar da isasshen ƙarfin lantarki da daidaita halin yanzu.

10. Ka'idojin Aiki

Na'urar tana aiki akan ka'idar electroluminescence a cikin haɗin p-n na semiconductor. Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce kofa na diode (anode tabbatacce dangane da cathode), electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki (InGaN rijiyoyin quantum), suna sakin makamashi a cikin nau'in photons. Babban haske daga guntun InGaN yana cikin bakan shuɗi. Laka na phosphor akan guntun yana ɗaukar wani ɓangare na wannan hasken shuɗi kuma yana sake fitar da shi azaman hasken rawaya. Cakuda sauran hasken shuɗi da canza hasken rawaya idon ɗan adam yana ganinsa azaman farin haske.