Bayanin Fasaha na Nunin LED LTC-3743KG - Tsayin Lamba 0.3 Inch - AlInGaP Kore - Ƙarfin Wutar Gaba 2.6V

1. Bayyani Game da Samfur

LTC-3743KG wani na'ura ne na nunin LED mai lambobi huɗu wanda aka ƙera don aikace-aikacen da ke buƙatar karanta lambobi masu haske da bayyananne. Yana da tsayin lamba 0.3 inch (7.4 mm), wanda ya sa ya dace da manyan nunuka a cikin kayan lantarki daban-daban. Na'urar tana amfani da fasahar semiconductor AlInGaP (Aluminum Indium Gallium Phosphide) don samar da hasken kore. Wannan tsarin kayan sananne ne saboda ingantaccen aiki da kyakkyawan aiki a cikin yanayi daban-daban na aiki. Nunin yana da fuskar baƙi tare da sassan fari, yana ba da bambanci mai girma don kyakkyawan karantawa. An gina shi azaman nau'in multiplex common cathode, wanda shine daidaitaccen tsari don nunin lambobi da yawa don rage adadin fil ɗin direba da ake buƙata.

1.1 Muhimman Siffofi

• Tsayin Lamba 0.3 Inch:Yana ba da girman harafi mai bayyananne da sauƙin karantawa.
• Sassan Daidaitattun Ci Gaba:Yana tabbatar da daidaitaccen bayyanar gani da ƙwararru a duk lambobi.
• Ƙarancin Bukatar Wutar Lantarki:An ƙera shi don aiki mai inganci, ya dace da na'urori masu amfani da baturi ko ƙarancin wutar lantarki.
• Kyakkyawan Bayyanar Haruffa:Bambanci mai girma tsakanin bango mai baƙi da sassan fari masu haske.
• Hasken Girma & Bambanci Mai Girma:Guntun AlInGaP suna ba da ƙarfin haske mai ƙarfi, wanda ake iya gani ko da a cikin wuraren da aka haskaka.
• Faɗin Kallon Kallo:Yana ba da damar karanta nunin daga faɗin kusurwoyi ba tare da asarar haske ko bayyananne ba.
• Amincin Jihar Ƙarfe:LEDs suna ba da dogon rayuwar aiki da juriya ga girgiza da rawar jiki idan aka kwatanta da sauran fasahohin nuni.
• Kunshin Ba Mai Gubar:Ya bi ka'idojin RoHS (Ƙuntata Abubuwa Masu Hatsari), wanda ya sa ya dace da masana'antar lantarki ta zamani.

1.2 Gano Na'ura

Lambar sashi LTC-3743KG ta musamman tana nuna nunin AlInGaP kore, multiplex common cathode tare da tsarin maki goma na hannun dama. Wannan tsarin suna yana taimakawa wajen gano ainihin fasaha, tsarin lantarki, da bambancin injiniya.

2. Zurfin Binciken Ma'auni na Fasaha

2.1 Matsakaicin Ƙididdiga na Cikakke

Waɗannan ƙididdiga suna ayyana iyakokin da za su iya haifar da lalacewa ta dindindin ga na'urar. Ba a ba da garantin aiki a ƙarƙashin waɗannan sharuɗɗan ba.

• Rushewar Wutar Lantarki Kowane Bangare:70 mW. Wannan shine matsakaicin wutar lantarki da za a iya watsar da shi ta hanyar sashin LED ɗaya cikin aminci.
• Matsakaicin Halin Gaba Kowane Bangare:60 mA. Wannan shine matsakaicin halin yanzu na lokaci-lokaci da aka yarda a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun jini 0.1ms). Yana da girma sosai fiye da ƙimar halin yanzu na ci gaba.
• Halin Gaba na Ci Gaba Kowane Bangare:25 mA a 25°C. Wannan halin yanzu yana raguwa a layi a ƙimar 0.28 mA/°C yayin da yanayin yanayi ya ƙaru sama da 25°C. Misali, a 85°C, matsakaicin halin yanzu na ci gaba da aka yarda zai kasance kusan: 25 mA - (0.28 mA/°C * (85°C - 25°C)) = 8.2 mA.
• Kewayon Yanayin Aiki:-35°C zuwa +105°C. An ƙididdige na'urar don yin aiki a cikin wannan kewayon yanayin yanayi.
• Kewayon Yanayin Ajiya:-35°C zuwa +105°C.
• Yanayin Solder:Na'urar na iya jure wa solder na igiyar ruwa tare da ƙarshen solder 1/16 inch (kusan 1.6 mm) a ƙasa da matakin wurin zama na dakika 3 a 260°C. Yanayin zafin na'urar da kanta yayin haɗawa bai kamata ya wuce matsakaicin ƙimar zafinta ba.

2.2 Halayen Lantarki & Na Gani

Waɗannan su ne ma'auni na yau da kullun na aiki da aka auna a yanayin yanayi (Ta) na 25°C.

• Matsakaicin Ƙarfin Hasken (Iv):200 - 630 ucd (microcandelas) a halin yanzu na gaba (IF) na 1 mA. Wannan faɗin kewayon yana nuna tsarin rarrabuwa don haske.
• Matsakaicin Tsawon Tsawon Watsawa (λp):571 nm (na yau da kullun) a IF=20mA. Wannan shine tsawon zango inda ƙarfin hasken da aka fitar ya fi girma.
• Rabin Faɗin Layin Bakan (Δλ):15 nm (na yau da kullun) a IF=20mA. Wannan yana auna yaduwar tsayin zangon da aka fitar; ƙaramin ƙima yana nuna haske mafi monochromatic (launi mai tsabta).
• Matsakaicin Tsawon Zango (λd):572 nm (na yau da kullun) a IF=20mA. Wannan shine tsawon zango guda ɗaya da idon ɗan adam ya fahimta wanda ya fi dacewa da launin hasken.
• Ƙarfin Wutar Gaba Kowane Guntu (VF):2.05V (Ƙananan), 2.6V (Typ), tare da jurewa na ±0.1V a IF=20mA. Wannan ma'auni ne mai mahimmanci don ƙirar da'irar direba.
• Halin Baya Kowane Bangare (IR):100 µA (Matsakaici) a ƙarfin wutar lantarki na baya (VR) na 5V. Wannan ma'auni ne don dalilai na gwaji kawai; an haramta aikin bias na baya na ci gaba.
• Matsakaicin Daidaitawar Ƙarfin Hasken:2:1 (Matsakaici) don yankuna masu haske iri ɗaya a IF=10mA. Wannan yana ƙayyadad da matsakaicin bambancin haske da aka yarda tsakanin sassan don tabbatar da bayyanar daidai.
• Maganar Ketare:≤2.5%. Wannan yana auna hasken da ba a zaɓa ba na wani yanki lokacin da aka tuƙi wani, wanda ya kamata ya zama ƙarami.

3. Bayanin Injiniya & Kunshin

Nunin yana zuwa a cikin daidaitaccen salon DIP (Dual In-line Package) ta hanyar rami. Muhimman bayanan girma sun haɗa da:

• Duk girma suna cikin milimita (mm).
• Juri na gabaɗaya shine ±0.25 mm sai dai idan an ƙayyade.
• Matsakaicin canjin ƙarshen fil shine ±0.4 mm.
• An sanya iyakoki akan kayan waje (≤10 mil), lanƙwasa (≤1% na tsayin mai nuna haske), kumfa a cikin sassan (≤10 mil), da gurɓataccen tawada a saman (≤20 mil) don tabbatar da ingancin gani.

4. Haɗin Fil & Da'irar Ciki

Na'urar tana da fil 24. Da'irar ciki tsarin multiplexed common cathode ne. Wannan yana nufin an haɗa cathodes na LEDs na kowane lamba tare (sun samar da layin zaɓin lamba), yayin da anodes na kowane nau'in yanki (A, B, C, D, E, F, G, DP) an haɗa su a ko'ina cikin duk lambobi. Don haskaka takamaiman yanki akan takamaiman lamba, ana tuƙi madaidaicin cathode lamba ƙasa (ƙasa) yayin da madaidaicin anode yanki aka tuƙi sama (tare da resistor mai iyakancewa halin yanzu). Teburin fitar fil yana bayyana aikin kowane fil a sarari, gami da anodes don sassan, cathodes don lambobi, da haɗin kai don siffofi na musamman kamar maki goma (DP1, DP2, DP3) da sauran alamomi (UDP, LC, L1, L2, L3).

5. Binciken Lanƙwasa Aiki

Yayin da ba a yi cikakken bayani game da takamaiman jadawali a cikin rubutun da aka bayar ba, jadawali na yau da kullun don irin wannan na'urar zai haɗa da:

• Lanƙwasa IV (Halin Yanzu-Ƙarfin Wutar Lantarki):Yana nuna alaƙar tsakanin halin yanzu na gaba da ƙarfin wutar lantarki na gaba, wanda ba layi ba ne. Wannan yana da mahimmanci don ƙirar da'irar iyakancewa halin yanzu.
• Ƙarfin Hasken vs. Halin Gaba:Yana nuna yadda fitar haske ke ƙaruwa tare da halin yanzu, yawanci a cikin alaƙar kusa da layi a cikin kewayon aiki.
• Ƙarfin Hasken vs. Yanayin Yanayi:Yana nuna yadda fitar haske ke raguwa yayin da zafin haɗin gwiwa na LED ya ƙaru. Wannan yana nuna mahimmancin sarrafa zafi.
• Rarraba Bakan:Jadawali da ke tsara ƙarfin haske da tsawon zango, yana nuna kololuwar tsayin zango da mafi rinjaye da rabin faɗin bakan.

6. Jagororin Solder, Haɗawa & Ajiya

6.1 Gargaɗin Aikace-aikace

Waɗannan jagorori ne masu mahimmanci don aiki mai dogaro:

• Amfanin Da Ake Nufi:Don kayan lantarki na yau da kullun. Tuntubi masana'anta don aikace-aikacen masu mahimmanci na aminci (jirgin sama, likita, da sauransu).
• Yin Biyayya ga Ƙididdiga:Bin Matsakaicin Ƙididdiga na Cikakke wajibi ne don guje wa lalacewa.
• Halin Yanzu & Zafin Jiki:Wuce gona da iri na halin yanzu na tuƙi ko yanayin aiki yana haifar da raguwar haske cikin sauri ko gazawa.
• Kariyar Da'ira:Dole ne da'irar tuƙi ta kare daga ƙarfin wutar lantarki na baya da sauye-sauyen wutar lantarki yayin zagayowar wutar lantarki.
• Tukin Halin Yanzu Na Ci Gaba:Ana ba da shawarar don daidaitaccen haske da tsawon rai, kamar yadda hasken LED aiki ne na halin yanzu, ba ƙarfin wutar lantarki ba.
• Kewayon Ƙarfin Wutar Gaba:Dole ne da'irar direba ta ɗauki cikakken kewayon VF (2.05V zuwa 2.7V) don tabbatar da cewa ana kai halin yanzu da aka yi niyya koyaushe.
• Rage Zafin Jiki:Dole ne a zaɓi halin yanzu na aiki bisa ga matsakaicin yanayin yanayi da ake tsammani, ta amfani da lanƙwasa ragewa.
• Guje wa Bias Baya:Zai iya haifar da ƙaura na ƙarfe, ƙara yoyo ko haifar da gajere.
• Guje wa Girgizar Zafi:Sauye-sauyen zafi cikin sauri a cikin yanayi mai ɗanɗano na iya haifar da hazo.
• Sarrafa Injiniya:Guje wa amfani da ƙarfi mara kyau ga jikin nunin.
• Aikace-aikacen Fim:Idan kuna amfani da fim mai hankali da matsi/overlay, guje wa samun shi a cikin hulɗa kai tsaye tare da panel na gaba don hana motsi.
• Rarrabuwa don Nunuka Da Yawa:Lokacin amfani da nunuka da yawa a cikin haɗuwa ɗaya, zaɓi raka'a daga kwandon haske/launi ɗaya don guje wa bayyanar mara daidaituwa.

6.2 Yanayin Ajiya

Daidaitaccen ajiya yana da mahimmanci don hana oxidization na fil da kuma kiyaye iya solder.

• Daidaitaccen Yanayi (a cikin kunshin asali):5°C zuwa 30°C, ƙasa da 60% Yanayin Yanayi (RH).
• Sakamakon Ajiya Mara Kyau:Oxidization na fil na iya faruwa, yana buƙatar sake shafawa kafin amfani.
• Gudanar da Kaya:Cinye nunuka da sauri; guje wa ajiyar dogon lokaci na adadi mai yawa.
• Hankalin Danshi:Idan samfurin ba ya cikin jakar shinge mai danshi, ko kuma jakar ta buɗe sama da watanni 6, ana ba da shawarar gasa a 60°C na awanni 48 kuma a kammala haɗawa cikin mako guda.

7. Shawarwarin Aikace-aikace

7.1 Yanayin Aikace-aikace na Yau da Kullun

LTC-3743KG ya dace da:

• Kayan aunawa da aunawa (masu auna lantarki, wadatar wutar lantarki).
• Panels na sarrafa masana'antu da alamomin tsari.
• Kayan lantarki na mabukaci kamar masu ƙara sauti, rediyon agogo, ko kayan dakin abinci.
• Tashoshin tallace-tallace da nunin bayanai.
• Kowane na'ura da ke buƙatar karanta lambobi da yawa mai bayyananne, mai dogaro.

7.2 Abubuwan Tunani na Ƙira

• Zaɓin IC Direba:Yi amfani da direban nunin LED na musamman ko microcontroller tare da isasshen ƙarfin halin yanzu na nutsewa/tushe da goyon bayan haɗawa.
• Iyakance Halin Yanzu:Koyaushe yi amfani da resistors na jerin ko direba mai ci gaba na halin yanzu don kowane layin anode. Lissafa ƙimar resistor bisa ga ƙarfin wutar lantarki, ƙarfin wutar lantarki na gaba na LED (yi amfani da matsakaicin VF don mafi munin halin yanzu), da halin yanzu na gaba da ake so.
• Mita Haɗawa:Zaɓi ƙimar sabunta wanda ya isa don guje wa kallon flicker (yawanci >60 Hz). Tabbatar cewa matsakaicin halin yanzu a cikin aikin haɗawa bai wuce matsakaicin ƙididdiga na cikakke ba.
• Tsarin PCB:Tabbatar da tsaftataccen alamun wutar lantarki zuwa direban nunin don guje wa amo. Bi shafin ƙafa da aka ba da shawarar daga zanen girma.
• Gudanar da Zafin Jiki:A cikin aikace-aikacen yanayin zafi mai girma, yi la'akari da rage halin yanzu na tuƙi ko inganta iska don kasancewa cikin iyakokin halin yanzu da aka rage.

8. Kwatancin Fasaha & Bambance-bambance

LTC-3743KG, bisa fasahar AlInGaP, yana ba da fa'idodi daban-daban:

• vs. LED na Kore na GaP (Gallium Phosphide) na Al'ada:AlInGaP yawanci yana ba da haske mafi girma da inganci, mafi kyawun kwanciyar hankali na zafin jiki, da launin kore mafi cika.
• vs. LED Blue/Fari tare da Phosphor:Wannan LED kore ne mai fitarwa kai tsaye, don haka baya fama da lalacewar phosphor akan lokaci kuma yana ba da fitarwa mai tsabta na bakan ba tare da faɗin bakan na farin LED da aka canza phosphor ba.
• vs. Manyan/Ƙananan Nunuka:Tsayin lamba 0.3 inch yana daidaita daidaito tsakanin karantawa da ƙanƙanta, yana dacewa da aikace-aikacen inda ake la'akari da sarari amma ana buƙatar karantawa daga matsakaicin nisa.

9. Tambayoyin da Ake Yawan Yi (FAQ)

Q: Menene manufar ƙirar multiplex common cathode?

A: Yana rage adadin fil ɗin da ake buƙata sosai. Nunin lambobi 4, sassa 7 da ba a haɗa su ba zai buƙaci fil 4*7 + 4 = 32. Siffar da aka haɗa tana amfani da layukan yanki 7 + layukan lamba 4 + wasu ƙari = fil 24, yana sauƙaƙa PCB da da'irar direba.

Q: Ta yaya zan iya ƙididdige ƙimar resistor mai iyakancewa halin yanzu?

A: Yi amfani da Dokar Ohm: R = (V_supply - VF_LED) / I_desired. Don wadatar 5V, matsakaicin VF na 2.7V, da halin yanzu da ake so na 10mA: R = (5V - 2.7V) / 0.010A = 230 Ohms. Yi amfani da ƙimar daidaitaccen da ke gaba (misali, 220 Ohms) kuma tabbatar da ainihin halin yanzu.

Q: Me yasa ake ba da shawarar tuƙin halin yanzu na ci gaba akan ƙarfin wutar lantarki na ci gaba?

A: Ƙarfin hasken LED shine da farko aikin halin yanzu na gaba (IF). Ƙarfin wutar lantarki na gaba (VF) na iya bambanta daga raka'a zuwa raka'a kuma tare da zafin jiki. Tushen halin yanzu na ci gaba yana tabbatar da daidaitaccen haske ba tare da la'akari da waɗannan bambance-bambancen VF ba, yayin da resistor mai sauƙi tare da wadatar ƙarfin wutar lantarki na ci gaba yana haifar da bambance-bambancen haske.

Q: Menene ma'anar "Matsakaicin Daidaitawar Ƙarfin Hasken 2:1"?

A: Yana nufin cewa mafi haske yanki a cikin rukuni bai kamata ya fi haske sau biyu fiye da mafi duhu yanki a ƙarƙashin gwaji iri ɗaya ba. Wannan yana tabbatar da daidaiton gani a ko'ina cikin nunin.

10. Gabatarwar Ka'idar Aiki

LTC-3743KG ya dogara ne akan electroluminescence na semiconductor. Kayan AlInGaP suna samar da haɗin gwiwar p-n. Lokacin da aka yi amfani da ƙarfin wutar lantarki na gaba wanda ya wuce ƙarfin da aka gina a cikin haɗin gwiwa, ana shigar da electrons da ramuka cikin yankin aiki inda suke sake haɗuwa. A cikin AlInGaP, wannan sake haɗuwa da farko yana sakin makamashi a cikin nau'in photons (haske) a cikin kewayon tsawon zango na kore (~572 nm). Takamaiman haɗin gwal na Aluminum, Indium, Gallium, da Phosphorus suna ƙayyade makamashin bandgap don haka launin hasken da aka fitar. Fuskar baƙi da sassan fari wani ɓangare ne na tsarin gani na kunshin, wanda aka ƙera don sha hasken yanayi (rage tunani) da kuma jagorantar hasken da aka samar a ciki cikin inganci ta hanyar siffofin yanki da ake so, yana haifar da bambanci mai girma.