Takardar Bayani na LTC-2624AJD LED Display - Tsawon Lamba 0.28-inch - AlInGaP Ja - Ƙarfin Wutar Gaba 2.6V - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

LTC-2624AJD wani na'ura ne mai nuna lambobi da haruffa, mai lamba uku da sassa bakwai, wanda aka tsara don aikace-aikacen da ke buƙatar karanta lambobi masu haske da tsabta. Babban aikinsa shine nuna lambobi uku (0-9) tare da maki goma. Fasahar cikinsa tana amfani da ƙananan na'urori masu haske (LED) na AlInGaP (Aluminum Indium Gallium Phosphide) masu inganci ja. An ƙera waɗannan na'urori a kan wani abu marar gani (GaAs substrate), wanda ke taimakawa wajen samun bambanci mai kyau ta hanyar rage watsa haske da kuma tunani a ciki. Nuni yana da fuskar launin toka tare da alamun sassa fari, wanda ke ƙara iya karantawa ta hanyar samar da bango marar launi wanda ke sa sassan ja masu haske su fito fili.

An ƙera wannan na'ura don aiki da ƙarancin wutar lantarki, wata fa'ida mai mahimmanci ga aikace-aikacen da ke amfani da baturi ko masu kula da makamashi. An gwada shi musamman kuma an siffanta shi don kyakkyawan aiki a ƙananan igiyoyin kuzari, tare da tabbatar da daidaiton sassa ko da a cikin waɗannan yanayi. Wannan yana ba masu ƙira damar yin amfani da igiyoyin kuzari har ƙasa da 1mA a kowane sashe yayin da ake kiyaye daidaiton haske a duk sassa da lambobi, wanda ke rage yawan amfani da wutar lantarki a tsarin gaba ɗaya sosai.

2. Ƙayyadaddun Fasaha da Fassarar Manufa

2.1 Iyakar Ƙididdiga Mafi Girma

Waɗannan ƙididdiga suna ayyana iyakokin damuwa waɗanda bayansu lalacewa ta dindindin na iya faruwa ga na'urar. Ba a ba da shawarar aiki a waje da waɗannan iyakokin ba.

• Rushewar Wutar Lantarki a Kowane Sashe:70 mW. Wannan shine iyakar izinin asarar wutar lantarki a matsayin zafi a cikin sashe ɗaya na LED.
• Matsakaicin Igya Na Gaba a Kowane Sashe:100 mA. Ana iya yarda da wannan kawai a ƙarƙashin yanayin bugun jini tare da aikin aiki 1/10 da faɗin bugun 0.1ms, yawanci ana amfani da shi don haɗawa ko tuƙi na ɗan gajeren lokaci don ƙarin haske.
• Ci gaba da Igya Na Gaba a Kowane Sashe:25 mA a 25°C. Wannan ƙimar tana raguwa a layi daya a 0.33 mA/°C yayin da yanayin yanayi (Ta) ya ƙara sama da 25°C. Misali, a 85°C, matsakaicin igya mai ci gaba zai kasance kusan 25 mA - (0.33 mA/°C * (85°C-25°C)) = 5.2 mA.
• Ƙarfin Wutar Juya Baya a Kowane Sashe:5 V. Wucewa wannan ƙarfin wutar lantarki a cikin karkatar da baya na iya haifar da rushewar haɗin gwiwa.
• Yanayin Aiki & Ma'ajiyar Zazzabi:-35°C zuwa +85°C. An ƙididdige na'urar don yanayin zafin masana'antu.
• Zafin Solder:Matsakaicin 260°C na matsakaicin dakika 3, wanda aka auna 1.6mm (1/16 inch) a ƙasan matakin wurin zama na fakitin. Wannan yana da mahimmanci ga hanyoyin solder na igiyar ruwa ko sake kwarara don hana lalacewar zafi ga ƙananan na'urorin LED ko haɗin ciki.

2.2 Halaye na Lantarki & Na Gani

Ana auna waɗannan sigogi a Ta=25°C kuma suna ayyana matsakaicin aikin aiki.

• Matsakaicin Ƙarfin Hasken Hasken (I_V):200 μcd (Mafi ƙanƙanta), 600 μcd (Na al'ada) a I_F=1mA. Wannan ƙananan gwajin igya yana nuna ingancin na'urar. Ana auna ƙarfin haske ta amfani da tacewa wanda ke kusanta da lanƙwaran amsawar ido na photopic (CIE).
• Matsakaicin Tsawon Tsawon Watsawa (λ_p):656 nm (Na al'ada) a I_F=20mA. Wannan yana nuna tsawon zango inda ƙarfin fitarwa na gani ya fi girma, yana sanya shi a cikin ɓangaren ja mai haske na bakan gani.
• Rabin Faɗin Layin Bakan (Δλ):22 nm (Na al'ada) a I_F=20mA. Wannan sigogi yana bayyana tsaftar bakan; ƙunƙuntaccen rabin faɗi yana nuna mafi yawan tushen haske mai launi ɗaya.
• Matsakaicin Tsawon Zango (λ_d):640 nm (Na al'ada) a I_F=20mA. Wannan shine tsawon zango guda ɗaya da idon ɗan adam ke gani, wanda zai iya bambanta kaɗan da tsayin kololuwar.
• Ƙarfin Wutar Gaba a Kowane Sashe (V_F):2.1V (Mafi ƙanƙanta), 2.6V (Na al'ada) a I_F=20mA. Wannan shine faɗuwar wutar lantarki a kan sashe na LED lokacin da yake gudanar da ƙayyadadden igya. Dole ne masu ƙira su tabbatar da cewa da'irar tuƙi na iya samar da wannan ƙarfin wutar lantarki.
• Igya ta Juya Baya a Kowane Sashe (I_R):10 μA (Mafi girma) a V_R=5V. Wannan shine igyar ɓarna lokacin da LED ke karkatar da baya.
• Matsakaicin Daidaiton Ƙarfin Hasken Hasken (I_V-m):2:1 (Mafi girma) a I_F=10mA. Wannan yana ƙayyade matsakaicin rabo da aka yarda tsakanin mafi haske da mafi duhu sashe a cikin na'ura, yana tabbatar da daidaiton gani. Rabo na 2:1 yana nufin sashe mafi haske ba zai fi haske sau biyu fiye da mafi duhu ba.

3. Bayanin Tsarin Rarraba

Takardar bayani tana nuna cewa an "Rarraba na'urar don Ƙarfin Hasken Hasken." Wannan yana nuna tsarin rarrabuwa inda ake rarraba sassan da aka ƙera bisa ga ƙarfin hasken da aka auna a daidaitaccen gwajin igya (mai yiwuwa 1mA ko 10mA). Wannan yana ba abokan ciniki damar zaɓar sassa masu daidaitattun matakan haske don aikace-aikacensu, yana hana bambance-bambance masu bayyana tsakanin nunin daban-daban a cikin samfur. Duk da yake ba a lissafa takamaiman lambobin kwandon a cikin wannan takarda ba, yawanci sayayya ta ƙunshi ƙayyadadden kewayon ƙarfin da ake so.

4. Bincike na Lanƙwaran Aiki

Takardar bayani tana nuni zuwa "Matsakaicin Lanƙwaran Halaye na Lantarki / Na Gani." Ko da yake ba a ba da takamaiman jadawali a cikin rubutun ba, daidaitattun lanƙwasa don irin waɗannan na'urori yawanci za su haɗa da:

• Lanƙwaran I-V (Igya vs. Ƙarfin Wutar Lantarki):Yana nuna alaƙar ma'auni tsakanin igya ta gaba da ƙarfin wutar lantarki na gaba, mai mahimmanci don ƙirar da'irar iyakance igya.
• Ƙarfin Hasken Hasken vs. Igya ta Gaba (I_Vvs. I_F):Yana nuna yadda fitar da haske ke ƙaruwa tare da igyar tuƙi, yawanci a cikin alaƙa kusa da layi a cikin kewayon aiki.
• Ƙarfin Hasken Hasken vs. Yanayin Yanayi:Yana nuna raguwar fitar da haske yayin da zafin haɗin gwiwa ya ƙaru. LED na AlInGaP gabaɗaya suna fuskantar raguwar inganci tare da hawan zafin jiki.
• Rarraba Bakan:Wani makircin ƙarfin dangi akan tsawon zango, yana nuna kololuwar a ~656nm da kuma rabin faɗin ~22nm.

5. Bayanin Injiniya da Fakitin

5.1 Girman Fakitin

Na'urar tana amfani da daidaitaccen tsarin fakitin shiga-layi biyu (DIP) tare da fil 26. Duk girmansun an ƙayyade su a millimita tare da juzu'i na gabaɗaya na ±0.25 mm sai dai idan an lura da haka. Siffar mahimmanci ita ce tsayin lamba 0.28-inch (7.0 mm), wanda ke ƙayyade girman kowane hali na lamba. Girman fakitin gabaɗaya zai ayyana sawun ƙafa akan PCB.

5.2 Haɗin Fil da Da'irar Ciki

LTC-2624AJD wani tsari ne naanoda gama gari. Wannan yana nufin cewa anoda (bangaren tabbatacce) na duk sassan LED don wata lamba da aka ƙayyade an haɗa su tare a ciki kuma an fitar da su zuwa fil guda ɗaya a kowace lamba (fil 1, 20). An fitar da katod (bangaren mara kyau) na sassa daban-daban (A, B, C, D, E, F, G, DP) na kowane lamba zuwa fil daban-daban. Zanen da'irar ciki zai nuna tubalan lambobi uku masu zaman kansu na anoda gama gari, kowanne yana ɗauke da sassa bakwai da maki goma. Ana buƙatar haɗawa don tuƙa nuni mai lamba uku na anoda gama gari: mai sarrafa yana ba da damar (yana amfani da ƙarfin wutar lantarki mai kyau ga) anoda gama gari na lamba ɗaya a lokaci guda yayin da yake tuƙa daidaitattun ƙirar katod na sashe don wannan lambar, yana zagayawa da sauri sosai don haifar da tasirin dorewar gani na duk lambobin suna ci gaba da kasancewa.

6. Jagororin Solder da Taro

Babban jagora shine iyakar ƙididdiga mafi girma don zafin solder: 260°C na matsakaicin dakika 3, wanda aka auna a ƙayyadadden wuri a ƙasan fakitin. Wannan ya dace da daidaitattun bayanan sake kwarara marar gubar. Masu ƙira yakamata su tabbatar cewa girman zafi na PCB da bayanan tanda na sake kwarara ba sa fallasa LED zuwa yanayin zafi mai yawa ko lokaci sama da ruwa. Yakamata a yi solder na hannu da ƙarfe da sauri kuma tare da sarrafa zafi mai dacewa. Yakamata a guji dogon bayyanawa ga yanayin ɗanɗano mai yawa kafin solder, kuma dole ne a kiyaye matakan kariya na ESD (Fitowar Wutar Lantarki ta Electrostatic) yayin sarrafawa da taro.

7. Shawarwarin Aikace-aikace

7.1 Yanayin Aikace-aikace na Al'ada

Wannan nuni yana da kyau ga aikace-aikacen da ke buƙatar nuni mai tsabta, mai ƙarancin wutar lantarki. Misalai sun haɗa da: allunan kayan aikin ma'auni (ma'auni, wadatar wutar lantarki, ma'auni), na'urorin lantarki na mabukaci (kayan aikin sauti, kayan aikin dafa abinci), karatun sarrafa masana'antu, nunin na'urar likita, da na'urorin da ke aiki da baturi masu ɗaukuwa.

7.2 Abubuwan Tunani na Ƙira

• Da'irar Tuƙi:Yi amfani da direbobi na igya akai-akai ko masu iyakance igya don kowane katod na sashe. Don tuƙi mai haɗawa, lissafa ƙimar resistor bisa ga matsakaicin igya da ake buƙata yayin lokacin KUNNA lamba da ƙarfin wutar lantarki ban da V_F.
• Haɗawa:Microcontroller tare da isassun fil na I/O ko haɗe tare da IC mai rarrafe/tuƙi (kamar rijistar motsi na 74HC595 tare da fitarwa na igya akai-akai ko tuƙi na LED na musamman) yana da mahimmanci. Yakamata ƙimar sabunta ta kasance mai girma sosai (yawanci >60Hz) don guje wa flicker da ake iya gani.
• Kusurwar Dubawa:Takardar bayani tana da'awar kusurwar dubawa mai faɗi, wanda ke da amfani ga aikace-aikacen da za a iya duba nuni daga wuraren da ba su da axis.
• Sarrafa Hasken Hasken:Ana iya sarrafa haske cikin sauƙi ta hanyar daidaita igyar sashe ko ta amfani da daidaitawar faɗin bugun jini (PWM) akan ko dai katod na sashe ko anod na lamba.

8. Kwatancen Fasaha da Bambance-bambance

Babban fa'idodin bambance-bambance na LTC-2624AJD bisa ga takardar bayaninsa sune:

• Fasahar Kayan (AlInGaP):Idan aka kwatanta da tsofaffin LED na GaAsP ko GaP, AlInGaP yana ba da inganci mafi girma sosai da fitar da ja mai haske, wanda ke haifar da ingantaccen gani da ƙarancin amfani da wutar lantarki.
• Aiki da Ƙananan Igya:Siffantarsa har zuwa 1mA/sashe wata siffa ce ta fice, yana ba da damar ƙirar ƙira masu ƙarancin wutar lantarki waɗanda ba za su yiwu ba tare da nunin da ke buƙatar igiyoyin tuƙi mafi girma.
• Ƙirar Bambanci Mai Girma:Haɗin fuskar launin toka, sassa fari, da abu marar gani an tsara shi don haɓaka bambanci lokacin da LED ɗin ya kashe kuma yana kunna, yana inganta iya karantawa a cikin yanayin haske daban-daban.

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

Tambaya: Shin zan iya tuƙa wannan nuni da microcontroller 3.3V kai tsaye?

Ama: Mai yiwuwa, amma da taka tsantsan. Na al'ada V_Fshi ne 2.6V a 20mA. Idan kun tuƙi sashe kai tsaye daga filin GPIO na 3.3V ta hanyar resistor, faɗuwar wutar lantarki a kan resistor zai kasance 0.7V kawai. Don cimma 10mA, kuna buƙatar resistor na ohm 70 (0.7V/0.01A). Duk da haka, wannan yana barin ɗan sarari kaɗan, kuma bambance-bambance a cikin V_Fzai iya haifar da canje-canjen igya masu mahimmanci. Don aiki mai dogaro, musamman a manyan igiyoyi, ana ba da shawarar ƙarfin wutar lantarki >3.6V, ko kuma yi amfani da transistor/tuƙi na LED.

Tambaya: Menene manufar ƙimar igya ta gaba mai kololuwa (100mA)?

Ama: Wannan yana ba da damar tsare-tsaren haɗawa. Idan kuna da aikin aiki 1/10 (kowace lamba tana kan 10% na lokaci), zaku iya bugun igya har zuwa 100mA ta cikin sashe yayin lokacin KUNNA don cimma matsakaicin haske da ake gani mafi girma fiye da yadda zai yiwu tare da igya mai ci gaba na 25mA. Matsakaicin igya bai kamata ya wuce ƙimar ci gaba ba.

Tambaya: Ta yaya zan fassara rabon daidaiton ƙarfin hasken haske 2:1?

Ama: Wannan sigogi ne na sarrafa inganci. Yana tabbatar da cewa a cikin na'urar LTC-2624AJD guda ɗaya, babu wani sashe da zai fi haske sau biyu fiye da mafi duhu sashe lokacin da ake tuƙa a ƙarƙashin yanayi ɗaya (10mA). Wannan yana tabbatar da daidaiton gani na lambar da aka nuna.

10. Nazarin Shari'ar Ƙira Mai Amfani

Yi la'akari da ƙirar ma'aunin zafi na dijital mai aiki da baturi wanda ke nuna zafi mai lamba uku. Ta amfani da microcontroller tare da fil 12 na I/O, zaku iya tuƙa anod gama gari uku (fil 3) da layukan sassa 7 (A-G) waɗanda aka raba a duk lambobi (fil 7), tare da fil ɗaya don maki goma idan an buƙata (gabaɗaya 11). Firmware yana haɗa lambobin. Don kiyaye wutar lantarki, kuna tuƙa kowane sashe a 2mA. A wannan igya, ƙarfin hasken zai kasance daidai gwargwado ƙasa da ƙayyadaddun 1mA amma mai yiwuwa har yanzu ya isa don amfani na cikin gida. Ta amfani da na al'ada V_Fna 2.6V da wadatar wutar lantarki 5V, ƙimar resistor mai iyakance igya zai kasance R = (5V - 2.6V) / 0.002A = 1.2 kΩ. Matsakaicin amfani da igya don nuni (duk lambobi uku suna nuna "888") zai kasance kusan: sassa 7/lamba * 2mA/sashe * aikin aiki 1/3 = ~4.67mA matsakaici. Wannan ƙananan ja na igya yana da kyau don tsawaita rayuwar baturi.

11. Ka'idar Aiki

Na'urar tana aiki akan ka'idar electroluminescence a cikin haɗin gwiwar p-n semiconductor. Lokacin da ƙarfin wutar lantarki na gaba wanda ya wuce bakin kofa na kunna diode (kusan 2.1-2.6V) aka yi amfani da shi a kan sashe (anoda tabbatacce dangane da katod), ana shigar da electrons da ramuka cikin yanki mai aiki (AlInGaP quantum well layers). Waɗannan masu ɗaukar caji suna sake haɗuwa, suna sakin makamashi a cikin nau'in photons. Takamaiman abun da ke cikin gawa na AlInGaP yana ƙayyade ƙarfin bandgap, wanda yake daidai da tsawon zango (launi) na hasken da aka fitar—a wannan yanayin, ja a ~640-656 nm. Abun da ba shi da gani na GaAs yana ɗaukar photons da aka fitar ƙasa, yana inganta bambanci ta hanyar hana su watsewa da kuma rage fitar da haske na gaba.

12. Trends na Fasaha

Duk da yake wannan takamaiman na'ura tana amfani da fasahar AlInGaP mai girma kuma abin dogaro, babban yanayin a cikin abubuwan nuni yana zuwa ga mafi girman ingantattun kayan kamar InGaN (wanda zai iya samar da shuɗi da kore, kuma ta hanyar phosphors, fari) da ƙananan fakitoci. Akwai kuma wani yanayi zuwa ga mafita masu haɗaka inda IC ɗin tuƙi ya kasance a cikin na'urar nuni da kanta, yana sauƙaƙa ƙirar tsarin. Bugu da ƙari, buƙatar ƙarancin amfani da wutar lantarki yana ci gaba da tura haɓakawa a cikin ingancin haske (lumens a kowace watt), yana ba da damar nunin haske mai haske a igya ɗaya ko haske ɗaya a ƙananan igiyoyi fiye da yadda aka ƙayyade anan. Tsarin tuƙi na haɗawa na asali don nunin lamba bakwai-sashe mai lamba da yawa ya kasance daidaitaccen saboda sauƙinsa da ingancin I/O.