Takardar Bayanin Fasaha ta LTS-4801KF LED Display - Tsawon Lamba 0.4-inch - Launi Mai Ruwan Lemu - Ƙarfin Wutar Gaba 2.6V - Ragewar Wutar Lantarki 70mW - Takardar Fasaha ta Turanci

1. Bayanin Samfur

LTS-4801KF ƙaramin nuni ne mai lamba guda bakwai mai inganci wanda aka ƙera don aikace-aikacen da ke buƙatar karantawar lambobi a sarari. Babban aikinsa shine samar da fitowar lambobi ta gani a cikin na'urorin lantarki. Babban fa'idar wannan na'urar yana cikin amfani da ci-gaban fasahar AlInGaP (Aluminum Indium Gallium Phosphide) LED guntu, wanda ke ba da mafi girman haske da inganci idan aka kwatanta da kayan gargajiya. Kasuwar da aka yi niyya ta haɗa da: allunan sarrafa masana'antu, kayan aikin ma'auni, kayan aikin gwaji, na'urorin lantarki na mabukaci, da kowane tsarin da aka haɗa da ke buƙatar amintaccen nuni na lambobi mai sauƙin karantawa.

2. Bincike Mai zurfi na Sigogi na Fasaha

2.1 Halayen Hoto da na Gani

Aikin gani shine tsakiyar aikin wannan nunin. A daidai gwargwadon gwajin halin yanzu na 20mA, matsakaicin ƙarfin haske (Iv) yana da ƙimar al'ada na 44,000 µcd (microcandelas), tare da mafi ƙarancin ƙayyadaddun ƙimar 27,520 µcd. Wannan babban haske yana tabbatar da kyakkyawan gani. Hasken da aka fitar yana cikin bakan launin rawaya mai ruwan lemu. Matsakaicin tsayin raƙuman ruwa (λp) yawanci 611 nm ne, yayin da tsayin raƙuman ruwa (λd) yawanci 605 nm ne. Ramin rabin faɗin layin bakan (Δλ) kusan 17 nm ne, yana nuna fitowar launi mai tsafta, cikakke. Nunin yana da fuskar launin toka tare da sassan fari, wanda ke ba da gudummawa ga babban bambanci don inganta karantawa a ƙarƙashin yanayin haske daban-daban.

2.2 Sigogi na Lantarki

Ƙayyadaddun lantarki suna bayyana iyakokin aiki da yanayi don amintaccen amfani. Matsakaicin ƙimar ƙididdiga yana da mahimmanci don ƙira:

• Ragewar Wutar Lantarki kowane Bangare:70 mW matsakaici.
• Matsakaicin Halin yanzu na Gaba kowane Bangare:60 mA matsakaici (a ƙarƙashin yanayin bugun jini: 1/10 aikin aiki, faɗin bugun jini 0.1ms).
• Ci gaba da Halin yanzu na Gaba kowane Bangare:25 mA matsakaici a 25°C. Wannan ƙimar tana raguwa a layi daya a 0.28 mA/°C yayin da yanayin zafi ya ƙaru sama da 25°C.
• Ƙarfin Wutar Baya kowane Bangare:5 V matsakaici.
• Ƙarfin Wutar Gaba kowane Bangare (Vf):Yawanci 2.6V, tare da kewayon daga 2.05V zuwa 2.6V a IF=20mA.
• Halin yanzu na Baya kowane Bangare (Ir):100 µA matsakaici a VR=5V.

Matsakaicin ƙimar daidaitawar ƙarfin haske tsakanin sassan (don wuraren da aka haskaka iri ɗaya) an ƙayyade a matsakaicin 2:1, yana tabbatar da daidaiton haske a duk faɗin lambar.

2.3 Ƙayyadaddun Zafi da Muhalli

An ƙididdige na'urar don kewayon yanayin zafin aiki na -35°C zuwa +105°C, da kewayon yanayin zafin ajiya na -35°C zuwa +105°C. Wannan babban kewayon ya sa ya dace don amfani a cikin mawuyacin yanayi. Ragewar ci gaba da halin yanzu na gaba shine tunani kai tsaye na thermal don hana yin zafi da tabbatar da dogon lokacin aminci.

3. Bayanin Tsarin Binning

Takardar bayanin ta nuna cewa an rarraba na'urori don ƙarfin haske. Wannan yana nuna tsarin binning inda ake rarraba raka'o'i kuma a sayar da su bisa ga ƙimar hasken da aka auna. Yawanci, ana bayyana kwandon ta hanyar kewayon ƙarfin haske (misali, Kwandon A: 27,520-35,000 µcd, Kwandon B: 35,001-44,000 µcd). Wannan yana ba masu zane damar zaɓar sassa waɗanda suka dace da takamaiman buƙatun haske don aikace-aikacensu, yana tabbatar da daidaito a cikin samarwa. Duk da yake ba a bayyana dalla-dalla ba don tsawon raƙuman ruwa, irin wannan rarrabuwa kuma ya zama ruwan dare don tsayin raƙuman ruwa ko kololuwa don kiyaye daidaiton launi.

4. Bincike na Lanƙwasa Aiki

Duk da yake an yi nuni da takamaiman bayanan hoto ("Lanƙwasan Halayen Lantarki / Na Gani na Al'ada"), lanƙwasan da aka haɗa a cikin irin waɗannan takardun bayanai suna da mahimmanci don fahimtar halayen na'ura fiye da ƙayyadaddun bayanai guda ɗaya. Waɗannan gabaɗaya sun haɗa da:

• Matsakaicin Ƙarfin Hasken Dangi vs. Halin yanzu na Gaba (Lanƙwasa I-V):Yana nuna yadda fitowar haske ke ƙaruwa tare da halin yanzu, yana taimakawa wajen inganta halin yanzu na tuƙi don haske da inganci da ake so.
• Ƙarfin Wutar Gaba vs. Halin yanzu na Gaba:Muhimmi ne don ƙirar da'irar iyakance halin yanzu.
• Matsakaicin Ƙarfin Hasken Dangi vs. Yanayin Yanayi:Yana nuna yadda haske ke raguwa yayin da zafin jiki ya tashi, wanda ke da mahimmanci ga aikace-aikacen zafi mai yawa ko ƙarfi mai yawa.
• Rarraba Spectral:Hoton da ke nuna ƙarfin hasken da aka fitar a cikin tsayin raƙuman ruwa daban-daban, yana tabbatar da halayen launin rawaya mai ruwan lemu.

Ya kamata masu zane su yi amfani da waɗannan lanƙwasan don hasashen aiki a ƙarƙashin yanayin da ba na daidaitaccen tsari ba (halin yanzu daban-daban, yanayin zafi) da kuma tabbatar cewa nuni ya dace da buƙatun gani a duk tsawon rayuwar aikin samfurin.

5. Bayanin Injiniya da Kunshin

LTS-4801KF abu ne mai rami ta hanyar rami tare da daidaitaccen tsarin layi guda 10. Tsawon lamba shine 0.4 inches (10.16mm). Zanen girmen kunshin yana ba da duk mahimman ma'aunin injiniya. Manyan ƙididdiga sun haɗa da: ±0.25mm (0.01") don yawancin girma da ƙimar canjin ƙarshen ƙusa na +0.4mm. Zanen haɗin ƙusa yana da mahimmanci don daidaitaccen shimfidar PCB:

• Ƙusa 1: Cathode G
• Ƙusa 2: Cathode F
• Ƙusa 3: Common Anode
• Ƙusa 4: Cathode E
• Ƙusa 5: Cathode D
• Ƙusa 6: Cathode D.P. (Matsakaici)
• Ƙusa 7: Cathode C
• Ƙusa 8: Common Anode
• Ƙusa 9: Cathode B
• Ƙusa 10: Cathode A

Na'urar tana amfani da tsarin anode na gama gari, ma'ana duk anodes na sashin LED an haɗa su a ciki zuwa ƙusoshin gama gari (3 da 8). Don haskaka wani yanki, dole ne a tuƙi ƙusoshin cathode ɗin da ya dace ƙasa (an haɗa shi da ƙasa) yayin da ake riƙe da anode na gama gari a cikin ƙarfin wutar lantarki mai kyau ta hanyar resistor mai iyakance halin yanzu.

6. Jagororin Solder da Haɗawa

Takardar bayanin ta ƙayyade yanayin solder don hana lalacewa yayin haɗawa: ana iya sanya kayan aikin zuwa solder na igiyar ruwa ko na hannu tare da sharadin cewa zafin solder a 1/16 inch (kusan 1.6mm) ƙasa da wurin zama bai wuce 260°C ba fiye da dakika 3. A madadin, zafin jikin na'urar da kanta yayin haɗawa bai kamata ya wuce matsakaicin ƙimar zafinsa ba. Don haɗawa na zamani, idan ana amfani da sake sakewa, yakamata a yi amfani da bayanin martaba wanda ya dace da abubuwan da ke da rami tare da iyakokin zafi iri ɗaya. Kunshin ne mara gubar wanda ya dace da umarnin RoHS (Ƙuntata Abubuwa masu haɗari). Ya kamata a bi daidaitaccen tsarin sarrafa ESD (Fitar da Wutar Lantarki) yayin ajiya da haɗawa.

7. Bayanin Kunshin da Oda

Lambar sashi ita ce LTS-4801KF. Ma'anar "KF" mai yiwuwa tana nuna takamaiman bayanan ƙarewa na kunshin ko tasha. Duk da yake ba a ƙayyade cikakkun bayanan kunshin (reel, bututu, tire) da adadi ba a cikin abin da aka ba da shi, yawanci kunshin irin waɗannan nunin yana cikin bututu masu hana wutar lantarki ko tire. Bita na takardar bayanin shine C, kuma ranar aiki ita ce 06/24/2010, wanda yakamata a tabbatar da shi don ƙayyadaddun bayanai na yanzu.

8. Shawarwari na Aikace-aikace

8.1 Yanayin Aikace-aikace na Al'ada

Wannan nuni ya dace da kowane na'ura da ke buƙatar lamba guda. Aikace-aikacen gama gari sun haɗa da: mitoci na panel don ƙarfin wutar lantarki, halin yanzu, ko zafin jiki; agogon dijital da na'urorin ƙidayar lokaci; allunan maki; sarrafa kayan aiki (tandu, microwave); alamun dashboard na mota (misali, matsayin kaya); da nunin matsayin kayan aikin masana'antu.

8.2 Abubuwan Tunani na Zane

• Iyakance Halin yanzu:Resistors masu iyakance halin yanzu na waje suna tilas don kowane haɗin anode na gama gari. Ana ƙididdige ƙimar resistor ta amfani da R = (Vsupply - Vf) / If, inda Vf shine ƙarfin wutar gaba (~2.6V) kuma If shine halin yanzu na gaba da ake so (matsakaicin 25mA ci gaba). Ta amfani da samar da 5V, R = (5V - 2.6V) / 0.02A = 120 Ohms.
• Haɗawa:Don nunin lambobi da yawa ta amfani da abubuwa iri ɗaya, ana iya amfani da haɗawa don sarrafa lambobi da yawa tare da ƙananan ƙusoshin I/O. Tunda wannan nuni ne na anode na gama gari, haɗawa ya ƙunshi ba da damar (wutar lantarki) anode gama gari na lamba ɗaya a lokaci guda yayin gabatar da bayanan sashin wannan lambar akan layukan cathode.
• Kusurwar Dubawa:Faɗin kusurwar dubawa yana da amfani ga aikace-aikacen da za a iya duba nunin daga wuraren da ba su da kyau.
• Sarrafa Hasken:Ana iya daidaita haske ta hanyar bambanta halin yanzu na gaba (a cikin iyakoki) ko ta amfani da daidaitawar faɗin bugun jini (PWM) akan siginoyin tuƙi.

9. Kwatancen Fasaha da Bambance-bambance

Babban abin da ya bambanta LTS-4801KF shine amfani da fasahar AlInGaP da zaɓin zane na musamman. Idan aka kwatanta da tsofaffin nunin LED na GaAsP ko GaP, AlInGaP yana ba da ingantaccen inganci na haske sosai, yana haifar da mafi girman haske don halin yanzu iri ɗaya, ko daidaitaccen haske a ƙarancin wutar lantarki. Haɗin fuskar launin toka/sashi fari an inganta shi don babban bambanci. Tsawon lambarsa na 0.4-inch ya cika takamaiman rami tsakanin ƙananan (0.3") da manyan (0.5", 0.56") nunin. Ƙusoshin anode gama gari biyu (3 da 8) suna ba da sassauƙa na ƙira kuma suna iya taimakawa wajen daidaita rarraba halin yanzu.

10. Tambayoyin da ake yawan yi (FAQs)

Q: Menene bambanci tsakanin anode na gama gari da cathode na gama gari?

A: A cikin nunin anode na gama gari, duk anodes suna haɗuwa tare. Kuna amfani da ƙarfin wutar lantarki mai kyau ga ƙusa na gama gari kuma kuna ƙasa da cathode na sashin da kuke so ku haskaka. A cikin nunin cathode na gama gari, duk cathodes suna haɗuwa tare. Kuna ƙasa da ƙusa na gama gari kuma kuna amfani da ƙarfin wutar lantarki mai kyau ga anode na sashin da kuke so ku haskaka. LTS-4801KF nau'in anode ne na gama gari.

Q: Zan iya tuƙa wannan nuni kai tsaye daga ƙusa na microcontroller?

A: A'a. Ƙusa na microcontroller ba zai iya samarwa ko nutse da 20-25mA da ake buƙata kowane yanki ba (kuma fiye da haka idan an haskaka sassa da yawa a lokaci guda akan anode gama gari ɗaya). Dole ne ku yi amfani da da'irar direba, kamar tsarin transistor (misali, ULN2003) don sauya anodes na gama gari da yuwuwar cathodes na yanki, tare da masu iyakance halin yanzu masu dacewa.

Q: Me ake nufi da "Matsakaicin Ƙimar Daidaitawar Ƙarfin Hasken 2:1"?

A> Yana nufin cewa mafi ƙarancin yanki a cikin lambar da aka haskaka ba zai zama rabin haske ba kamar yadda mafi haske yake. Wannan yana tabbatar da daidaiton gani a duk faɗin lambar da aka nuna.

Q: Ana buƙatar sinkon zafi?

A> Don ci gaba da aiki a matsakaicin halin yanzu na ci gaba (25mA/yanki) da babban yanayin zafi, ana buƙatar yin la'akari da shimfidar PCB a matsayin mai nutsewa zafi saboda raguwar wutar lantarki. A yawancin aikace-aikacen al'ada a ƙananan halin yanzu ko tare da haɗawa, ba a buƙatar ƙarin sinkon zafi.

11. Misalin Aikace-aikace na Aiki

Yi la'akari da ƙirar ma'aunin zafi na dijital mai sauƙi wanda ke nuna lamba guda (misali, wurin goma). Microcontroller yana karanta firikwensin zafin jiki, yana sarrafa bayanan, kuma yana ƙayyade wace lamba (0-9) za a nuna. Ana amfani da IC direba kamar MAX7219 ko da'irar transistor daban-daban. Microcontroller yana aika lambar BCD (Binary-Coded Decimal) ko taswirar yanki kai tsaye zuwa direba. Direba, bi da bi, yana ba da daidaitattun siginoyi ƙasa akan ƙusoshin cathode A-G da D.P. yayin samar da wutar lantarki ga ƙusa na anode na gama gari. An sanya resistor mai iyakance halin yanzu a jere tare da haɗin anode na gama gari. Babban hasken nunin AlInGaP yana tabbatar da cewa ana iya karanta zafin jiki ko da a cikin daki mai haske.

12. Gabatarwar Ka'idar Fasaha

LTS-4801KF ya dogara ne akan electroluminescence na semiconductor. Kayan AlInGaP (Aluminum Indium Gallium Phosphide) wani semiconductor ne mai kai tsaye. Lokacin da aka yi wa gaba (ƙarfin wutar lantarki mai kyau da aka yi amfani da shi ga anode dangane da cathode), ana shigar da electrons da ramuka cikin yanki mai aiki inda suke sake haɗuwa. Wannan sake haɗuwa yana sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke cikin gami na AlInGaP yana ƙayyade makamashin bandgap, wanda kai tsaye yayi daidai da tsayin raƙuman ruwa (launi) na hasken da aka fitar—a wannan yanayin, rawaya mai ruwan lemu (~605-611 nm). Substrate na GaAs mara kyau yana taimakawa inganta bambanci ta hanyar ɗaukar haske mara kyau. Sassan bakwai sune guntun LED ɗaya ko tsarin guntu waɗanda aka haɗa su zuwa ƙusoshin cathode daban-daban amma suna raba haɗin anode na gama gari, suna ba da damar sarrafa su kaɗai don samar da haruffan lambobi.

13. Trends na Fasaha da Mahallin

Duk da yake nunin LED na bakwai yana ci gaba da zama ingantaccen mafita mai tsada don karatun lambobi, faɗin yanayin fasahar nuni ya samo asali. Trends sun haɗa da canzawa zuwa kunshin na'urar da'ira (SMD) don haɗawa ta atomatik, ƙirar lambobi masu yawa masu yawa, da haɗa direbobi da masu sarrafawa cikin kunshin nunin. Organic LED (OLED) da ci-gaban fasahar nunin ruwa (LCD) suna ba da madadin tare da ciniki daban-daban a cikin amfani da wutar lantarki, kusurwar dubawa, da keɓancewa. Duk da haka, don aikace-aikacen da ke buƙatar amincin matuƙa, aikin kewayon zafin jiki mai faɗi, babban haske, da sauƙi, nunin sassan LED daban-daban kamar LTS-4801KF suna ci gaba da zama zaɓi na fifiko. Amfani da AlInGaP yana wakiltar ci gaba akan tsofaffin kayan LED, yana ba da inganci da kwanciyar hankali na launi.