Bayanin Fasaha na Nunin LED na LTC-2721JD - Tsayin Lamba 0.28-inch - Ja AlInGaP - Ƙarfin Ƙarfafawa 2.6V - Ƙarfin Wutar Lantarki 70mW - Takardun Fasaha na Turanci

LTC-2721JD ƙaramin nuni ne mai lamba uku da sassa bakwai mai inganci wanda aka ƙera don bayyana lambobi a sarari a cikin kayan lantarki. Yana da tsayin lamba 0.28-inch (7.0 mm), yana ba da ma'auni mai kyau tsakanin girma da karantawa. Na'urar tana amfani da fasahar guntu LED ta AlInGaP (Aluminum Indium Gallium Phosphide) mai ci gaba, musamman nau'in Ja Mai Inganci wanda aka ƙera akan tushen GaAs mara ganuwa. Wannan zaɓin fasaha shine mabuɗin aikinsa, yana ba da haske mafi girma da inganci idan aka kwatanta da tsofaffin kayan LED. Nunin yana da fuskar launin toka mai ban sha'awa tare da sassa farare, wanda ke haɓaka bambanci da bayyanar haruffa, yana sa lambobin su kasance masu sauƙin karantawa a ƙarƙashin yanayin haske daban-daban. Kasuwannin sa na farko sun haɗa da na'urorin lantarki na mabukaci, faloƙin sarrafa masana'antu, kayan aikin ma'auni, kayan aikin gwaji, da kayan aikin ofis inda ake buƙatar nuni na lambobi mai aminci, ƙarancin wutar lantarki.

1.1 Siffofi da Fa'idodi Masu Muhimmanci

Girman Mafi Kyau:

• Tsayin lamba 0.28-inch yana ba da nuni mai haske ba tare da ɗaukar sararin falo mai yawa ba.Aikin Gani Mafi Girma:
• Sassa masu ci gaba daidai suna tabbatar da haske iri ɗaya. Haɗin haske mai girma, bambanci mai girma, da kuma faɗin kusurwar kallo suna tabbatar da karantawa daga mahanga da yawa.Ingantaccen Amfani da Wutar Lantarki:
• Bukatar ƙarancin wutar lantarki, wanda fasahar AlInGaP mai inganci ke tuka.Ƙarfafa Amintacce:
• Ginin ƙwaƙƙwaran jiki yana ba da dogon rayuwar aiki da juriya ga girgiza da rawar jiki.Tabbacin Inganci:
• An rarraba na'urori don ƙarfin haske, yana tabbatar da matakan haske iri ɗaya a cikin rukunin samarwa.Yin Biyayya ga Muhalli:
• Ana ba da samfurin a cikin kunshin da ba shi da gubar wanda ya dace da umarnin RoHS (Ƙuntata Abubuwa Masu Hadari).1.2 Gane Na'urar

Lambar sashi LTC-2721JD ta musamman tana nuna nuni na cathode gama gari da aka haɗa ta amfani da LED ja Mai Inganci na AlInGaP, yana nuna maki goma na hannun dama. Wannan tsari daidai ne don tuka lambobi da yawa tare da rage adadin filayen I/O na microcontroller.

2. Ma'auni na Fasaha: Cikakken Fassarar Manufa

Wannan sashe yana ba da cikakken bincike na ma'auni masu mahimmanci waɗanda ke ayyana aikin nuni da iyakokin aiki.

2.1 Matsakaicin Matsakaicin Matsakaici

Waɗannan su ne iyakokin damuwa waɗanda ba za a wuce su a kowane yanayi ba, ko da na ɗan lokaci. Yin aiki a ko fiye da waɗannan iyakoki na iya haifar da lalacewa ta dindindin.

Rushewar Wutar Lantarki kowane Sashi:

• 70 mW. Wannan shine matsakaicin wutar lantarki da sashi ɗaya zai iya watsar da zafi cikin aminci.Matsakaicin Ci gaba na Yanzu kowane Sashi:
• 90 mA. Ana ba da izinin wannan kawai a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun jini 0.1ms) don haɗawa.Ci gaba da Ci gaba na Yanzu kowane Sashi:
• 25 mA a 25°C. Wannan yanzu yana raguwa a layi daya a 0.33 mA/°C yayin da zafin yanayi (Ta) ya karu sama da 25°C. Misali, a 85°C, matsakaicin ci gaba na yanzu zai kasance kusan: 25 mA - ((85°C - 25°C) * 0.33 mA/°C) ≈ 5.2 mA.Kewayon Zafin Jiki:
• Yankin aiki da adana zafin jiki shine -35°C zuwa +85°C.Yanayin Solder:
• Dole ne a yi solder igiyar ruwa ko hannu 1/16 inch (≈1.59 mm) a ƙasan jirgin sama. Matsakaicin zafin jiki da aka ba da shawarar shine 260°C na dakika 5 ko 350°C ±30°C na solder da hannu cikin dakika 5.2.2 Halayen Lantarki & Na Gani

Waɗannan su ne ma'auni na aikin al'ada da aka auna a Ta=25°C da ƙayyadaddun ci gaba na yanzu (IF).

Matsakaicin Ƙarfin Hasken (I

• ):_VYa kewayo daga 200 zuwa 600 μcd (microcandelas) a IF=1mA. An rarraba nuni don ƙarfi, ma'ana an raba sassa zuwa rukuni dangane da abin da aka auna don tabbatar da daidaito.Ƙarfin Ƙarfafawa kowane Sashi (V
• ):_FYawanci 2.6V, tare da matsakaicin 2.6V a IF=20mA. Dole ne masu ƙira su tabbatar da cewa da'irar tuƙi tana iya samar da isasshen ƙarfin lantarki.Matsakaicin Tsawon Tsawon Watsawa (λ
• ):_p656 nm. Wannan shine tsayin raƙuman ruwa wanda ƙarfin wutar lantarki na gani ya fi girma.Matsakaicin Tsawon Tsawon Ruwa (λ
• ):_d640 nm. Wannan shine tsayin raƙuman ruwa guda ɗaya wanda idon ɗan adam ke gani, yana ayyana launi (ja).Rabin Faɗin Layin Bakan (Δλ):
• 22 nm. Wannan yana nuna tsaftar bakan hasken ja da aka fitar.Ci gaba da Baya kowane Sashi (I
• ):_RMatsakaicin 100 μA a V=5V._RBayanin Mai Muhimmanci:Wannan ma'auni ne kawai don dalilai na gwaji. Ba a ƙera na'urar don ci gaba da aikin bias na baya ba, kuma dole ne da'irar tuƙi ta hana irin wannan yanayin.Matsakaicin Daidaitawar Ƙarfin Hasken:
• Matsakaicin 2:1 don sassan da ke cikin yanki mai haske iri ɗaya. Wannan yana tabbatar da haske iri ɗaya a duk sassan lamba.Maganar Ketare:
• An ƙayyade shi azaman ≤2.5%. Wannan yana nufin hasken da ba a so na wani sashi lokacin da ake tuka sashi maƙwabta, wanda yakamata ya zama ƙarami.3. Bayanin Injiniya & Kunshin

3.1 Girman Kunshin da Ƙarfafawa

Nunin ya yi daidai da daidaitaccen sawun kunshin biyu a cikin layi (DIP). Muhimman bayanan girma sun haɗa da:

Duk girma suna cikin milimita (mm).

• Ƙarfafawar gabaɗaya ita ce ±0.20 mm sai dai idan an ƙayyade.
• Ƙarfafawar canjin ƙafar ƙafar ita ce ±0.4 mm.
• An ayyana iyakokin sarrafa inganci don abubuwan waje (≤10 mils), gurɓataccen tawada (≤20 mils), lanƙwasa (≤1% na tsayin mai nunawa), da kumfa a cikin sashi (≤10 mils).
• Ana ba da shawarar diamita ramin PCB don ƙafafun shine 1.30 mm.
• 3.2 Tsarin Ƙafafun da Da'irar Ciki

LTC-2721JD

nuni ne na cathode gama gari da aka haɗa.Yana da ƙafafun cathode gama gari guda uku (ɗaya ga kowane lamba: ƙafafu 2, 5, 8) da ƙafafun anode na kowane sashi (A-G, DP) da sassan colon (L1, L2, L3). Ƙafa 13 cathode gama gari ce ga LED colon guda uku. Wannan gine-gine yana ba da damar microcontroller ya haskaka takamaiman lamba ta hanyar ƙasa cathode ɗin sa na gama gari yayin amfani da ƙarfin lantarki na gaba zuwa anodes sassan da ake so. Ta hanyar zagayawa cikin lambobi da sauri (haɗawa), duk lambobi uku suna bayyana a ci gaba da haskakawa. Haɗin ƙafafun kamar haka ne: 1(D), 2(CC1), 3(DP), 4(E), 5(CC2), 6(C/L3), 7(G), 8(CC3), 9(NC), 10-11(NP), 12(B/L2), 13(CC L1/L2/L3), 14(NP), 15(A/L1), 16(F).4. Lanƙwasa Aiki da Halaye

Bayanin fasaha yana nuni zuwa lanƙwasa aiki na al'ada (ko da yake ba a nuna su a cikin rubutun da aka bayar ba). Dangane da halayen LED na daidaitaccen da ma'auni da aka bayar, waɗannan lanƙwasa za su nuna:

Ci gaba da Yanzu vs. Ci gaba da Ƙarfin Lantarki (Lanƙwasa I-V):

• Yana nuna alaƙar ma'auni, tare da V na al'adana 2.6V a 20mA._FƘarfin Hasken vs. Ci gaba da Yanzu:
• Yana nuna yadda fitowar haske ke ƙaruwa tare da halin yanzu, har zuwa matsakaicin ƙima.Ƙarfin Hasken vs. Zafin Yanayi:
• Yana nuna raguwar fitowar haske yayin da zafin jiki ke ƙaruwa, wani muhimmin abu ne don ƙira.Rarraba Bakan:
• Jadawalin da ke nuna ƙarfin dangi akan tsayin raƙuman ruwa, a tsakiya kusan 656 nm (kololuwa) da 640 nm (mamaye).5. Gwajin Amintacce

Na'urar tana fuskantar cikakken jerin gwaje-gwajen amintacce dangane da soja (MIL-STD), Jafananci (JIS), da ma'auni na ciki don tabbatar da ƙarfi da tsawon rai.

Rayuwar Aiki (RTOL):

• Sa'o'i 1000 a matsakaicin ƙimar yanzu a ƙarƙashin zafin daki.Damuwar Muhalli:
• Ya haɗa da Ajiyar Zafi/Zafi mai girma (500 hrs a 65°C/90-95% RH), Ajiyar Zafi mai girma (1000 hrs a 105°C), da Ajiyar Zafi ƙasa (1000 hrs a -35°C).Zafin Jiki & Girgiza:
• Zafin Jiki (30 zagaye tsakanin -35°C da 105°C) da Girgiza Zafi (30 zagaye tsakanin -35°C da 105°C) gwada juriya ga saurin canjin zafin jiki.Solderability:
• Gwajin juriya na Solder (10 sec a 260°C) da Solderability (5 sec a 245°C) sun tabbatar da ikon kunshin don jurewa hanyoyin haɗawa.6. Jagororin Solder da Haɗawa

6.1 Solder ta Atomatik

Don solder igiyar ruwa, yanayin da aka ba da shawarar shine a nutsar da jagororin zuwa zurfin 1/16 inch (1.59 mm) a ƙasan jirgin sama har zuwa dakika 5 a 260°C. Zafin jikin nuni bai kamata ya wuce matsakaicin zafin ajiya yayin wannan tsari ba.

6.2 Solder da Hannu

Lokacin amfani da ƙarfe na solder, ƙarshen yakamata ya taɓa jagora (kuma, 1/16 inch a ƙasan jirgin sama) ba fiye da dakika 5 ba a zafin jiki na 350°C ±30°C. Yin amfani da mai sanyaya zafi akan jagora tsakanin haɗin gwiwa da jikin kunshin aiki ne mai kyau.

7. Gargadi Masu Muhimmanci na Aikace-aikace da La'akari da Ƙira

Muhimmanci:

Yin biyayya ga waɗannan gargaɗin yana da mahimmanci don aiki mai aminci da kuma hana gazawa da wuri.Amfanin Da Ake Nufi:

• An ƙera shi don kayan lantarki na yau da kullun. Ana buƙatar tuntuba don aikace-aikacen aminci mai mahimmanci (jirgin sama, likita, da sauransu).Yin Biyayya ga Ƙimar:
• Da'irar tuƙidoleta tabbatar da cewa ba a taɓa wuce matsakaicin matsakaicin ƙima (halin yanzu, ƙarfin lantarki, wutar lantarki, zafin jiki) ba. Masana'anta ba su da alhakin lalacewa da ta samo asali daga rashin bin doka.Gudanar da Halin Yanzu da Zafin Jiki:
• Wucewa da ci gaba na yanzu da aka ba da shawarar ko zafin aiki zai haifar da lalacewa mai tsanani, marar juyewa na fitowar haske kuma zai iya haifar da gazawa mai ban tsoro.Kariyar Da'ira:
• Dole ne da'irar tuƙi ta haɗa da kariya daga ƙarfin lantarki na baya da sauye-sauyen ƙarfin lantarki waɗanda zasu iya faruwa yayin kunna wutar lantarki ko kashewa. Dole ne a haɗa resistor na jerin ko direba mai ci gaba don iyakance halin yanzu.Hanyar Tuƙi:
• Ana ba da shawarar tuƙi mai ci gaba da yanzu sosai sama da tuƙi mai ƙarfin lantarki mai tsayi. Wannan yana tabbatar da ƙarfin haske iri ɗaya ba tare da la'akari da ƙananan bambance-bambance a cikin ƙarfin lantarki na gaba (V) tsakanin sassa ko raka'a kuma yana ba da kariya ta asali daga ƙyallen halin yanzu. Don aikin haɗawa, dole ne a ƙididdige matsakaicin halin yanzu dangane da aikin aiki don tabbatar da matsakaicin halin yanzu kowane sashi ya kasance cikin iyaka._F8. Yanayin Aikace-aikace na Aiki da Bayanan Ƙira

8.1 Aikace-aikace na Al'ada

Mitocin Lambobi (DMMs) & Kayan Aikin Gwaji:

• Samar da bayanan lambobi masu haske don ƙarfin lantarki, halin yanzu, da juriya.Mai Ƙidaya Lokaci & Ƙidaya na Masana'antu:
• Nuna lokacin da ya wuce, ƙididdigar samarwa, ko saiti.Kayan Lantarki na Mabukaci:
• Agogo, nuni na kayan aikin sauti, karatun kayan aikin dafa abinci.Faloƙin Kayan Aikin Ma'auni:
• Don nuna bayanan firikwensin kamar zafin jiki, matsa lamba, ko gudu a cikin tsari mai ƙarami.8.2 Nazarin Aiwatar da Ƙira

Yanayi:

Ƙirar nuni na mitar voltmeter mai lamba 3 ta amfani da microcontroller.Direba Mai Haɗawa:

1. Microcontroller zai yi amfani da filayen I/O 7-8 don anodes sassan (A-G, DP) da filayen I/O 3 (an tsara su azaman buɗe-drain/ƙananan-fitowa) don cathodes lambobi (CC1, CC2, CC3).Iyakance Halin Yanzu:
2. Sanya resistor mai iyakance halin yanzu a jere tare da kowane layin anode sashi. Ƙimar resistor (R) ana ƙididdige ta ta amfani da: R = (Vwadata_{- V}) / I_F. Don wadata 5V, V_F=2.6V, da I da ake so_Fna 10 mA: R = (5 - 2.6) / 0.01 = 240 Ω. Yi amfani da ƙimar daidaitaccen da ya fi kusa (misali, 220 Ω ko 270 Ω)._FLokacin Haɗawa:
3. Shirya microcontroller don kunna cathode lamba ɗaya a lokaci guda, haskaka sassan da ake buƙata don wannan lamba, jira ɗan gajeren lokaci (misali, 2-5 ms), sannan matsawa zuwa lamba ta gaba. Ƙimar sabuntawa na 50-200 Hz yana hana flicker da ake iya gani.Duba Matsakaicin Halin Yanzu:
4. Idan ana amfani da aikin aiki na 10% (lambobi 3), matsakaicin halin yanzu yayin lokacin aiki na iya zama mafi girma. Donmatsakaicina 10 mA, I_Fkololuwahalin yanzu yayin aikin aiki na 1/3 zai kasance 30 mA. Dole ne a duba wannan da Matsakaicin Matsakaicin Matsakaici don Matsakaicin Ci gaba na Yanzu (90 mA) da Ci gaba da Ci gaba da raguwa a zafin aiki.9. Kwatancen Fasaha da Bambance-bambance

Fa'idodin farko na LTC-2721JD sun samo asali ne daga fasahar AlInGaP:

vs. Tsoffin LED Ja GaAsP/GaP:

• AlInGaP yana ba da ingantaccen inganci mai haske sosai, yana haifar da haske mafi girma don irin wannan tuƙi ɗaya ko ƙarancin amfani da wutar lantarki don irin wannan haske. Hakanan yana ba da mafi kyawun kwanciyar hankali na zafin jiki da tsaftar launi.vs. Manyan Nunin:
• Girman 0.28-inch yana ba da wuri mai daɗi tsakanin ƙananan nunin (0.2-inch) waɗanda za su iya zama da wahalar karantawa da manyan nunin (0.5-inch ko fiye) waɗanda ke cinye wutar lantarki da yanki na allon.Cathode Gama Gari vs. Anode Gama Gari:
• Sau da yawa ana fifita tsarin cathode gama gari a cikin tsarin da microcontrollers ke tuka, kamar yadda sukan iya zubar da halin yanzu (tuƙi ƙafafun ƙasa) mafi inganci fiye da yadda zasu iya samo shi (tuƙi ƙafafun sama).10. Tambayoyin da ake yawan yi (Dangane da Ma'auni na Fasaha)

10.1 Shin zan iya tuka wannan nuni da microcontroller na 3.3V?

Amsa:

Mai yiwuwa, amma tare da taka tsantsan. Ƙarfin ƙarfin gaba na al'ada (V) shine 2.6V. Tare da wadata 3.3V, akwai kawai 0.7V headroom don resistor mai iyakance halin yanzu. Wannan ƙaramin raguwar ƙarfin lantarki yana sa halin yanzu ya zama mai mahimmanci ga bambance-bambance a cikin V_Fda ƙarfin wadata. Ana ba da shawarar da'irar direba mai ci gaba da yanzu sosai don aikin 3.3V don tabbatar da haske mai tsayi. Haɗin kai kai tsaye zuwa filayen GPIO na 3.3V ba tare da direba ba yana haɗarin wuce gona da iri idan V_Fyana a ƙarshen ƙananan kewayon sa._F10.2 Me ya sa aka rage matsakaicin ci gaba na yanzu tare da zafin jiki?

Amsa:

Wannan ya faru ne saboda ƙimar zafin jiki mara kyau na ƙarfin lantarki na gaba na LED da iyakokin jiki na kunshin. Yayin da zafin jiki ya tashi, ingancin ciki yana raguwa, kuma ana canza ƙarin wutar lantarki zuwa zafi maimakon haske. Idan ba a rage halin yanzu ba, zafin haɗin gwiwa na iya tashi ba tare da sarrafawa ba (guduwar zafi), yana haifar da lalacewa da sauri da gazawa. An ba da lanƙwasa raguwa (0.33 mA/°C) don hana wannan.10.3 Me ake nufi da "an rarraba don ƙarfin haske"?

Amsa:

Yana nufin an gwada nunin kuma an raba su zuwa kwandon haske daban-daban bayan samarwa. Misali, wani rukuni na iya samun Idaga 200-300 μcd, wani daga 300-400 μcd, da sauransu. Wannan yana ba masu ƙira damar siyan adadi mai yawa don tabbatar da haske iri ɗaya a duk raka'o'in da ke cikin samfurinsu. Takamaiman lambar kwandon sau da yawa ana yiwa alama a kan kunshin (ana nufin shi da "Z: LAMBAR KWANDO" a cikin alamar module)._V11. Ka'idar Aiki da Trends na Fasaha

11.1 Ka'idar Aiki ta Asali

Nunin LED mai sassa bakwai jeri ne na diodes masu fitar da haske waɗanda aka tsara a cikin tsarin adadi takwas. Kowane sashi (A zuwa G) LED ne na mutum. Ta hanyar amfani da ƙarfin lantarki na gaba (wanda ya wuce V na diode

) da iyakance halin yanzu tare da resistor ko tushen halin yanzu mai tsayi, electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki na semiconductor na AlInGaP, suna sakin makamashi a cikin nau'in photons (haske) a tsayin raƙuman ruwa na halayen kayan - a wannan yanayin, ja (~640 nm). Haɗawa yana amfani da dagewar gani na idon ɗan adam ta hanyar haskaka lamba ɗaya kawai a lokaci ɗaya amma zagayawa cikin su da sauri har suna bayyana duka a lokaci guda._F11.2 Mahallin Fasaha na Manufa

AlInGaP yana wakiltar tsarin kayan da ya balaga kuma an inganta shi sosai don LED ja, orange, da rawaya. Yana ba da inganci mai kyau da aminci. Yarjejeniyar a fasahar nuni tana zuwa ga haɗin kai mafi girma (misali, nunin matrix ɗigo, OLEDs, micro-LEDs) da haɗin kai kai tsaye tare da ICs direba. Duk da haka, nunin sassa bakwai masu hankali kamar LTC-2721JD sun kasance masu dacewa sosai saboda sauƙinsu, ƙarancin farashi, haske mai girma, ƙarfi, da sauƙin amfani a aikace-aikacen da kawai ake buƙatar nuna bayanan lambobi. Ƙirarsu an fahimta sosai, kuma suna haɗuwa cikin sauƙi tare da microcontrollers masu arha, suna tabbatar da ci gaba da amfani da su a fagen masana'antu, mabukaci, da kayan aikin ma'auni na gaba.

AlInGaP represents a mature and highly optimized material system for red, orange, and yellow LEDs. It offers excellent efficiency and reliability. The trend in display technology is towards higher integration (e.g., dot matrix displays, OLEDs, micro-LEDs) and direct integration with driver ICs. However, discrete seven-segment displays like the LTC-2721JD remain highly relevant due to their simplicity, low cost, high brightness, robustness, and ease of use in applications where only numeric data needs to be shown. Their design is well-understood, and they interface easily with low-cost microcontrollers, ensuring their continued use in industrial, consumer, and instrumentation fields for the foreseeable future.