Bayanin Fasaha na Nunin LED na LTD-5721AJF - Tsayin Lamba 0.56-inch - AlInGaP Rai-Rai - Ƙarfin Wutar Gaba 2.6V - Ragewar Wutar Lantarki 70mW - Takardar Fasaha ta Turanci

1. Bayanin Samfur

LTD-5721AJF wani na'ura ne mai nunin lambobi da haruffa mai lamba biyu da sassa bakwai, wanda aka ƙera don aikace-aikacen da ke buƙatar karanta lambobi masu haske da bayyananne. Babban aikinsa shine nuna lambobi da wasu ƙananan haruffa ta amfani da sassan LED masu sarrafa kansu. Fasahar cibiyar tana amfani da kayan semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP) da aka ajiye akan wani tushe na Gallium Arsenide (GaAs) marar gani don samar da hasken rai-rai na musamman. Wannan na'urar tana da fuskar launin toka tare da alamomin sassa fari, wanda ke haɓaka bambanci da karantawa lokacin da sassan suke haskakawa ko ba su haskaka ba. An rarraba nunin bisa ga ƙarfin haske, yana tabbatar da daidaiton matakan haske don aikace-aikacen da daidaiton bayyanar a tsakanin na'urori masu yawa ke da muhimmanci.

1.1 Fa'idodi na Cibiya da Kasuwar Manufa

Nunin yana ba da fa'idodi masu mahimmanci da yawa waɗanda suka sa ya dace da kewayon aikace-aikacen masana'antu da na mabukaci. Babban haskensa da kyakkyawan bambancin sa suna tabbatar da karantawa ko da a cikin wurare masu haske. Faɗin kusurwar kallo yana ba da damar karanta bayanan da aka nuna daga matsayi daban-daban ba tare da asarar bayyananne ba. A matsayin na'urar da ke da ƙarfi, tana ba da amintaccen aiki, dogon rayuwar aiki, da juriya ga girgiza da rawar jiki idan aka kwatanta da fasahar nunin tsofaffi kamar nunin filasha na vacuum (VFDs). Ƙarancin buƙatun wutar lantarki yana sa ya zama mai inganci. Waɗannan fasalulluka sun sa LTD-5721AJF ya zama mafi kyau ga kasuwanni da suka haɗa da kayan aikin gwaji da aunawa, kwamitocin sarrafa masana'antu, tashoshin siyarwa, kayan aikin dashboard na mota, da kayan lantarki na mabukaci iri-iri inda ake buƙatar nunin lambobi masu aminci.

2. Zurfin Binciken Sigogi na Fasaha

Wannan sashe yana ba da nazari na haƙiƙa na mahimman sigogi na lantarki da na gani da aka ƙayyade a cikin takardar bayanai, yana bayyana mahimmancinsu ga injiniyoyin ƙira.

2.1 Matsakaicin Matsakaicin Matsayi

Waɗannan ƙididdiga suna ayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na na'urar na iya faruwa. Ba a nufin aiki na yau da kullun ba.

• Ragewar Wutar Lantarki kowane Sashe:70 mW. Wannan shine matsakaicin wutar lantarki da za a iya watsar da ita azaman zafi ta kowane sashe na LED a kowane yanayi. Wuce wannan zai iya haifar da zafi da haɓakar lalacewar guntu na LED.
• Matsakaicin Halin Gaba kowane Sashe:60 mA (a cikin 1/10 aikin aiki, 0.1 ms faɗin bugun jini). Wannan ƙimar don ɗan gajeren lokaci, aikin bugun jini, galibi ana amfani da shi a cikin tsare-tsare masu yawa don cimma mafi girman haske da ake gani ba tare da wuce matsakaicin iyakar halin yanzu ba.
• Ci gaba da Halin Gaba kowane Sashe:25 mA (an rage shi daga 25°C a 0.33 mA/°C). Wannan shine matsakaicin halin yanzu na DC da aka ba da shawarar don ci gaba da aiki a 25°C. Ma'aunin ragewa yana nuna cewa dole ne a rage amintaccen halin yanzu na aiki yayin da yanayin yanayi (Ta) ya karu don hana guduwar zafi.
• Ƙarfin Wutar Lantarki Baya kowane Sashe:5 V. Yin amfani da ƙarfin lantarki na baya sama da wannan zai iya haifar da rushewa da gazawar haɗin LED.
• Yanayin Aiki & Ma'ajiyar Zafin Jiki:-35°C zuwa +85°C. An ƙididdige na'urar don yin aiki da adanawa a cikin wannan kewayon zafin jiki.
• Zafin Solder:260°C na dakika 3, an auna 1/16 inch ƙasa da filin zama. Wannan yana ayyana yanayin bayyanar solder na reflow don guje wa lalata kunshin ko haɗin ciki.

2.2 Halayen Lantarki & Na Gani (a Ta=25°C)

Waɗannan su ne sigogi na aiki na yau da kullun a ƙarƙashin ƙayyadaddun yanayin gwaji.

• Matsakaicin Ƙarfin Hasken (I_V):320 - 900 µcd (Na yau da kullun 900 µcd) a I_F=1mA. Wannan yana auna ƙarfin fitar haske kamar yadda idon ɗan adam ya gani. Kewayon yana nuna tsarin rarrabawa; masu ƙira dole ne su yi la'akari da mafi ƙarancin ƙima (320 µcd) don tabbatar da isasshen haske a aikace-aikacensu.
• Matsakaicin Tsawon Tsawon Tsawon (λ_p):611 nm (Na yau da kullun) a I_F=20mA. Wannan shine tsawon zango wanda rarraba ƙarfin haske na fitar haske ya fi girma. Yana ayyana launin da ake gani (rai-rai).
• Rabin Faɗin Layin Gani (Δλ):17 nm (Na yau da kullun) a I_F=20mA. Wannan sigogi yana nuna tsaftar gani ko faɗin bandejin fitar haske. Ƙaramin ƙima yana nufin mafi monochromatic (tsaftataccen launi) fitarwa.
• Matsakaicin Tsawon Tsawon (λ_d):605 nm (Na yau da kullun) a I_F=20mA. Wannan shine tsawon zango guda ɗaya wanda ya fi dacewa da launin da idon ɗan adam ya gani na LED, galibi ana amfani da shi don ƙayyadaddun launi.
• Ƙarfin Wutar Gaba kowane Sashe (V_F):2.05 - 2.6 V (Na yau da kullun 2.6V) a I_F=20mA. Wannan shine faɗuwar wutar lantarki a kan LED lokacin aiki. Yana da mahimmanci don ƙirar da'irar iyakance halin yanzu. Dole ne a yi amfani da mafi girman ƙima (2.6V) don ƙirar mafi munin yanayi don tabbatar da isasshen ƙarfin tuƙi.
• Halin Baya kowane Sashe (I_R):100 µA (Matsakaici) a V_R=5V. Wannan shine ƙaramin halin yanzu na ɓarna wanda ke gudana lokacin da LED ke da baya a cikin matsakaicin matsayinsa.
• Matsakaicin Daidaiton Ƙarfin Hasken (I_V-m):2:1 (Matsakaici). Wannan yana ƙayyadad da matsakaicin matsakaicin rabo tsakanin mafi haske da mafi duhu a cikin na'ura ɗaya ko tsakanin na'urori daga kwandon ɗaya. Rabo na 2:1 yana nufin mafi duhu ba zai iya zama rabin haske kamar mafi haske ba, yana tabbatar da daidaiton gani.

3. Bayanin Tsarin Rarrabawa

Takardar bayanai tana nuna cewa an "rarraba na'urar don ƙarfin haske." Wannan yana nufin tsarin rarrabawa ko rarrabuwa da ake yi yayin masana'antu.

3.1 Rarrabawar Ƙarfin Hasken

Saboda bambance-bambancen da ke cikin masana'antar semiconductor, guntu na LED daga rukunin samarwa ɗaya na iya samun fitar haske daban-daban. Don tabbatar da daidaito ga abokan ciniki, ana gwada LED kuma a raba su zuwa ƙungiyoyi (kwandon) bisa ga ƙarfin hasken da aka auna a daidaitaccen halin yanzu na gwaji (misali, 1mA). Ƙayyadaddun kewayon LTD-5721AJF na 320 zuwa 900 µcd yana wakiltar yaduwa a cikin kwandon da yawa. Takamaiman lambar oda ko kari a cikin cikakken lambar sashe zai nuna kwandon da aka saya, yana ba da garantin cewa ƙarfin ya faɗi cikin ƙunƙuntaccen, ƙayyadaddun kewayon (misali, 700-900 µcd). Masu ƙira dole ne su tuntubi takaddun rarrabawar masana'anta ko ƙayyade kwandon da ake buƙata lokacin yin oda don tabbatar da daidaiton haske a cikin samfurinsu.

4. Nazarin Lanƙwasa Aiki

Yayin da abin da aka fitar na PDF ya ambaci "Lanƙwasa Halaye na Lantarki / Na Gani na Yau da Kullun," takamaiman zane-zane ba a haɗa su a cikin rubutun ba. Dangane da halayen LED na yau da kullun, waɗannan lanƙwasan za su nuna alaƙar masu zuwa, waɗanda ke da mahimmanci don fahimtar aikin na'ura a ƙarƙashin yanayin da ba na yau da kullun ba:

• Halin Gaba (I_F) da Ƙarfin Wutar Gaba (V_F):Yana nuna halayen I-V na diode mai ma'ana. Muhimmi ne don tantance ƙarfin tuƙi da ake buƙata don halin yanzu da ake so.
• Ƙarfin Hasken (I_V) da Halin Gaba (I_F):Gabaɗaya yana nuna alaƙa kusa da layi a ƙananan halin yanzu, mai yuwuwar cika a cikin halin yanzu mai girma saboda tasirin zafi. Muhimmi ne don sarrafa haske ta hanyar daidaita halin yanzu ko PWM.
• Ƙarfin Hasken (I_V) da Yanayin Yanayi (T_a):Yawanci yana nuna raguwar fitar haske yayin da zafin jiki ya karu. Dole ne a yi la'akari da wannan ragewar zafin jiki don aikace-aikacen da ke aiki a cikin yanayi mai zafi.
• Rarraba Gani:Zane mai zana ƙarfin dangi akan tsawon zango, yana nuna kololuwa a ~611 nm da siffar da aka ayyana ta rabin faɗin 17 nm.

5. Bayanin Injiniya & Kunshin

5.1 Girman Kunshin

Na'urar tana da daidaitaccen kunshin LED mai lamba biyu mai sassa bakwai. Zanen (wanda aka ambata amma ba a cikakken bayani a cikin rubutu) zai nuna tsayin gabaɗaya, faɗi, da tsayin na'urar, tsayin lamba (0.56 inch / 14.22 mm), girman sassa, da tazarar tsakanin lambobi. Hakanan zai ƙayyade wuri da diamita na ramukan hawa, idan akwai. Ana yawan jurewa ±0.25 mm sai dai idan an lura da hakan akan zanen.

5.2 Haɗin Fil da Ƙarfin Wutar Lantarki

LTD-5721AJF yana da tsarin fil 18 kuma yana amfani daAnode na Gama Garitsarin da'ira. Wannan yana nufin cewa anodes na duk LED na kowane lamba an haɗa su tare a ciki zuwa fil gama gari (Fil 13 don Lamba 2, Fil 14 don Lamba 1). Don haskaka wani sashe, dole ne a tuƙi fil ɗin cathode ɗinsa zuwa ƙananan matakin ma'ana (ƙasa ko nutsewar halin yanzu) yayin da anode gama gari na wannan lamba yana riƙe da ƙarfin lantarki mai kyau (ta hanyar resistor mai iyakance halin yanzu). Jerin fil ɗin yana ba da takamaiman haɗin cathode na kowane sashe (A-G da DP) na lambobi biyu. Daidaitaccen gano fil ɗin 1 (galibi ana yiwa alama da tsaga, bevel, ko digo akan kunshin) yana da mahimmanci don daidaitaccen fuskantarwa yayin haɗawa.

5.3 Zanen Da'ira na Ciki

Zanen (wanda aka ambata a cikin PDF) yana wakiltar tsarin anode gama gari a zahiri. Yana nuna tubalan biyu (ɗaya don kowane lamba), kowanne yana ɗauke da LED sassa bakwai (A-G) da LED goma ɗaya (DP). Duk anodes a cikin tubalin lamba an haɗa su tare zuwa fil ɗin anode gama gari na wannan lamba. An fitar da cathodes na kowane sashe zuwa filaye daban-daban, yana ba da damar sarrafa kansu.

6. Jagororin Solder & Haɗawa

Matsakaicin Matsakaicin Matsayi ya ƙayyade mahimmin sigogi na solder: kunshin zai iya jure zafin jiki mai tsayi na 260°C na dakika 3, an auna a wani wuri 1/16 inch (kusan 1.6 mm) ƙasa da filin zama (yawanci saman PCB). Wannan ƙimar daidaitaccen ƙimar ce don hanyoyin solder na igiyar ruwa ko reflow ta amfani da solder marar gubar (SnAgCu). Masu ƙira yakamata su tabbatar cewa bayyanar tanda na reflow ɗin su bai wuce wannan haɗin lokaci-zafin jiki ba don guje wa lalata kunshin filastik, haɗin waya na ciki, ko guntu na LED da kansu. Yakamata a kiyaye matakan kariya na ESD (Fitar Lantarki Mai Tsanani) yayin sarrafawa da haɗawa. Ma'ajiyar yakamata ta kasance a cikin ƙayyadaddun kewayon -35°C zuwa +85°C a cikin yanayi mai ƙarancin zafi.

7. Shawarwarin Aikace-aikace

7.1 Da'irorin Aikace-aikace na Yau da Kullun

Don nunin anode gama gari kamar LTD-5721AJF, da'irar tuƙi ta yau da kullun ta ƙunshi amfani da microcontroller ko takamaiman IC mai tuƙa nunin. Filayen anode gama gari (13, 14) an haɗa su da ƙarfin wutar lantarki mai kyau (misali, 5V) ta hanyar resistors masu iyakance halin yanzu na kowane ɗayan ko ta hanyar maɓallan transistor idan yawan yawa. Filayen cathode na sashe (1-12, 15-18) an haɗa su da fitar da nutsewar direban. Dole ne a iyakance halin yanzu na kowane sashe zuwa ƙimar Halin Gaba na Ci gaba (25 mA matsakaici, yawanci ana aiki da shi a 10-20 mA don daidaita haske da tsawon rai). Dole ne a cire faɗuwar ƙarfin wutar lantarki na gaba (matsakaici 2.6V) daga ƙarfin wutar lantarki don ƙididdige ƙimar resistor mai iyakance halin yanzu: R = (V_wadata- V_F) / I_F.

7.2 Abubuwan Tunani na Ƙira

• Yawan Aiki:Don sarrafa lambobi biyu tare da ƙananan fil ɗin I/O, ana amfani da dabarar yawan aiki. Ana haskaka lambobin ɗaya bayan ɗaya cikin sauri (misali, a 100Hz ko sama da haka). Idon ɗan adam yana ganin wannan a matsayin duka lambobin suna kan koyaushe. Wannan yana buƙatar tuƙi anodes gama gari tare da siginar sauyawa da daidaita bayanan sashe na kowane lamba. Ana iya ƙara matsakaicin halin yanzu na kowane sashe yayin ɗan gajeren lokacinsa na kunna (har zuwa ƙimar kololuwa 60mA) don rama raguwar aikin aiki da kuma kiyaye matsakaicin haske.
• Gudanar da Zafi:Duk da cewa ragewar wutar lantarki yana da ƙasa kowane sashe, jimillar wutar lantarki na duk sassan da aka haskaka a cikin lamba na iya ƙaruwa. Tabbatar da isasshen iska idan an rufe nunin, musamman a cikin yanayin zafi mai girma, don hana zafin haɗin ya wuce iyakokin aminci.
• Kusurwar Kallo:Faɗin kusurwar kallo fa'ida ce, amma ƙirar injiniya na akwatin samfurin (misali, zurfin taga nunin, amfani da tacewa ko ruwan tabarau) na iya shafar ingantacciyar kusurwar kallo ga mai amfani na ƙarshe.

8. Kwatancen Fasaha & Bambance-bambance

Babban abin da ya bambanta LTD-5721AJF shine amfani daAlInGaPfasahar semiconductor don fitar da rai-rai. Idan aka kwatanta da tsofaffin fasahohi kamar daidaitaccen Gallium Phosphide (GaP) LED rawaya, AlInGaP yana ba da ingantaccen ingantaccen haske sosai, yana haifar da mafi girman haske don halin yanzu ɗaya na tuƙi. Hakanan gabaɗaya yana ba da mafi kyawun cikar launi da kwanciyar hankali akan zafin jiki da tsawon rai. Idan aka kwatanta da nunin da ke amfani da hasken da aka tace (misali, LED fari tare da tace launi), AlInGaP yana ba da mafi tsaftataccen fitarwa na gani da inganci, saboda babu hasken da ya ɓace a cikin tsarin tacewa. Ƙirar fuska mai launin toka/fari tana ba da bayyanar ƙwararru, babban bambanci ko da an kunna ko kashe wuta, wanda zai iya zama mafi kyau fiye da faranti kore ko ja a wasu aikace-aikace.

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

Q: Menene bambanci tsakanin Matsakaicin Tsawon Tsawon Tsawon da Matsakaicin Tsawon Tsawon?

A: Tsawon zango shine kololuwar zahiri na bakan hasken da aka fitar. Matsakaicin tsawon zango shine tsawon zango guda ɗaya na hasken monochromatic wanda zai bayyana yana da launi ɗaya ga mai kallo na ɗan adam. Sau da yawa suna kusa amma ba iri ɗaya ba, musamman ga LED masu lanƙwasa gani marasa daidaituwa. Matsakaicin tsawon zango ya fi dacewa da daidaitawar launi.

Q: Zan iya tuƙa wannan nunin tare da microcontroller 3.3V ba tare da mai canza matakin ba?

A: Mai yiwuwa, amma ana buƙatar lissafi mai kyau. Idan fil ɗin I/O na microcontroller zai iya nutse da halin yanzu na sashe da ake buƙata (misali, 10-20mA), kuma kuna amfani da wadata 3.3V don anode gama gari, faɗuwar ƙarfin wutar lantarki na gaba (matsakaici 2.6V) ya bar 0.7V kawai don resistor mai iyakance halin yanzu. Wannan yana haifar da ƙaramin ƙimar resistor (misali, ohm 35 don 20mA), wanda zai iya zama mara amfani kuma mai saurin canzawa ga bambance-bambance a cikin V_F. Wadata 5V don anodes ya fi yau da kullun kuma yana ba da mafi kyawun sararin samaniya don sarrafa halin yanzu mai ƙarfi.

Q: Me "Matsakaicin Daidaiton Ƙarfin Hasken 2:1" ke nufi ga ƙirata?

A: Yana nufin cewa a cikin na'urar nunin ɗaya, mafi duhu zai iya zama rabin haske kamar mafi haske. Idan cikakkiyar daidaito tana da mahimmanci (misali, a cikin kayan aikin likita), yakamata ku zaɓi na'urori daga kwandon mai ƙarfi ko aiwatar da daidaita haske na software don kowane sashe, wanda yake da rikitarwa. Ga aikace-aikace da yawa, rabo 2:1 yana karɓuwa kuma ba ya damun gani.

10. Misalin Amfani na Aiki

Yanayi: Ƙirar lokaci/lokaci na dijital mai sauƙi.

LTD-5721AJF zaɓi ne mai kyau don nuna mintuna da dakika (MM:SS). Ana iya amfani da microcontroller mai arha don sarrafa ajiyar lokaci da tuƙa nunin. Za a yi amfani da lambobi biyu da yawa. Anode gama gari na lambar "mintuna" da lambar "dakika" za a haɗa su zuwa fil ɗin GPIO daban-daban guda biyu waɗanda aka saita azaman fitarwa, ana sauya ɗaya a lokaci (ta hanyar transistor don ƙarfin halin yanzu mafi girma). Layukan cathode na sassa bakwai (A-G) za a haɗa su zuwa wasu fil ɗin GPIO bakwai waɗanda aka saita azaman buɗe-ɗrain ko tuƙi ƙasa, tare da resistor na jerin akan kowane layi (ko resistor ɗaya akan hanyar anode gama gari idan daidaiton haske ba shi da mahimmanci). Software ɗin microcontroller yana sabunta tsarin sashe don lambar mai aiki, sannan ya canza cikin sauri zuwa ɗayan lambar. Launin rai-rai galibi ana haɗa shi da taka tsantsan ko kulawa, yana sa ya dace da nunin lokaci. Babban haske yana tabbatar da cewa ana iya ganinsa a cikin yanayin haske daban-daban.

11. Gabatar da Ƙa'idar Aiki

Na'urar tana aiki bisa ka'idarelectroluminescencea cikin haɗin p-n semiconductor. Tsarin kayan AlInGaP yana da bandgap kai tsaye wanda yayi daidai da makamashin photon a cikin yankin rai-rai na bakan gani (~2.0 eV). Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce yuwuwar gina haɗin (ƙarfin wutar lantarki na gaba V_F), electrons daga yankin n-type da ramuka daga yankin p-type ana allurar su a kan haɗin. Lokacin da waɗannan masu ɗaukar caji suka sake haɗuwa a cikin yanki mai aiki na semiconductor, suna sakin makamashi a cikin nau'in photons (haske). Takamaiman haɗin gawa na Aluminum, Indium, Gallium, da Phosphide yana ƙayyade makamashin bandgap don haka launi (tsawon zango) na fitar haske. Tushen GaAs marar gani yana ɗaukar duk wani haske da aka fitar ƙasa, yana sa na'urar ta fi inganci a cikin alkiblar kallo da aka yi niyya.

12. Trends na Fasaha

Yayin da AlInGaP ya kasance fasaha mai inganci don LED ja, rawaya, da rawaya, faɗin yanayin fasahar nunin yana ci gaba da haɓakawa. Ga nunin lambobi bakwai, trends sun haɗa da: 1)Mafi Girman Haɗin Kai:Modules tare da gina cikin ICs direba, masu sarrafawa, har ma da hanyoyin sadarwa (I2C, SPI) suna zama mafi yawanci, suna sauƙaƙa ƙirar tsarin. 2)Madadin Fasahohi:Sassan Organic LED (OLED) suna ba da bayyanan sirara da faɗin kusurwar kallo, kodayake tsawon rai da farashi na iya zama dalilai. 3)Ƙananan & Yawa:Yayin da 0.56-inch ke da girman daidaitaccen girman, akwai buƙatar ƙananan (don na'urorin hannu) da manyan, nunin mafi haske. 4)Zaɓuɓɓukan Launi & RGB:Nunin sassa bakwai masu launi da yawa ko cikakken launi ta amfani da guntu na LED RGB suna ba da damar canza launi mai ƙarfi, kodayake suna buƙatar ƙarin lantarki na tuƙi masu rikitarwa. Fa'idodin asali na fasahar LED—amintaccen aiki, inganci, da ƙarfin ƙarfi—suna tabbatar da ci gaba da dacewarsa a aikace-aikacen nunin lambobi na gaba.