Takardar Bayani na Nunin LED na LTC-4624JR - Tsayin Lamba 0.4-inch - Ja Mai Tsananin Haske (631nm) - Ƙarfin Wutar Gaba 2.6V - Ragewar Wutar Lantarki 70mW - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

LTC-4624JR ƙaramin kayan aiki ne, mai aiki mai ƙarfi, nunin LED mai lamba uku, mai sassa bakwai. Babban aikinsa shine a cikin kayan aikin lantarki da ke buƙatar karanta lambobi masu haske da bayyananne, kamar na'urorin gwaji, allunan sarrafa masana'antu, na'urorin siyarwa, da kayan amfani na gida. Babban fa'idar wannan na'urar ta ta'allaka ne a cikin amfani da fasahar semiconductor na AlInGaP (Aluminum Indium Gallium Phosphide) don guntu LED, wanda ke ba da ingantaccen ingancin haske da tsaftar launi a cikin bakan ja idan aka kwatanta da tsofaffin fasahohi kamar GaAsP. Wannan yana haifar da kyakkyawan bayyanar haruffa tare da haske mai ƙarfi da bambanci, yana sa lambobin su zama masu sauƙin karantawa ko da a cikin yanayin haske daban-daban. An rarraba na'urar don ƙarfin haske, yana ba da damar daidaita haske a cikin aikace-aikacen nuni da yawa.

1.1 Siffofi Mafi Muhimmanci da Bayanin Na'ura

Nunin yana da siffofi da yawa da suka ba da gudummawa ga amincinsa da aiki. Yana da tsayin lamba 0.4-inch (10.0mm), yana ba da daidaito mai kyau tsakanin girma da iya karantawa. Sassa suna ci gaba da kuma daidaito, suna tabbatar da tsafta da bayyanar ƙwararru. Yana aiki tare da ƙarancin buƙatun wutar lantarki, yana haɓaka ingancin makamashi. Gina ƙaƙƙarfan jiki yana ba da babban aminci da dogon rayuwar aiki. Bugu da ƙari, kunshin ba shi da gubar, yana bin umarnin RoHS (Ƙuntata Abubuwa Masu Haɗari), yana sa ya dace da masana'antar kera lantarki na zamani.

Takamaiman lambar sashi, LTC-4624JR, tana nuna na'urar da ke da guntu LED na AlInGaP Super Red an jera su a cikin tsarin haɗin ginin cathode na yawa. Ya haɗa da maki goma na hannun dama ga kowace lamba. Ɗabarun gani yana da fuskar launin toka tare da sassa farare, wanda ke haɓaka bambanci da inganta iya karantawa.

2. Ma'auni na Fasaha: Fassarar Manufa Mai zurfi

2.1 Matsakaicin Matsakaicin Matsakaici

Fahimtar matsakaicin matsakaicin matsakaici yana da mahimmanci don tabbatar da dogon lokacin amincin nunin. Waɗannan ƙididdiga suna ayyana iyakokin da za a iya haifar da lalacewa ta dindindin a bayansa. Ragewar wutar lantarki a kowane sashi an ƙididdige shi a 70 mW. Matsakaicin halin yanzu na gaba a kowane sashi shine 90 mA, amma wannan yana yiwuwa ne kawai a ƙarƙashin takamaiman yanayi na bugun jini: zagayowar aiki 1/10 da faɗin bugun jini 0.1ms. Ci gaba da halin yanzu na gaba a kowane sashi shine 25 mA a 25°C, kuma yana raguwa a layi daya a cikin adadin 0.33 mA/°C yayin da yanayin yanayi ya ƙaru. Wannan raguwa yana da mahimmanci don sarrafa zafin jiki. An ƙididdige na'urar don yanayin aiki da adanawa daga -35°C zuwa +85°C. An ƙayyade yanayin sake narkewar solder a matsayin 260°C na dakika 3 a nisan 1/16 inch (kusan 1.6mm) a ƙasa da matakin zaɓen kayan aikin akan PCB.

2.2 Halayen Lantarki da Na Gani

Ana auna halayen lantarki da na gani a daidaitaccen yanayin yanayi na 25°C. Matsakaicin ƙarfin haske (Iv) ya bambanta daga mafi ƙanƙanta 200 µcd zuwa na yau da kullun 650 µcd a halin yanzu na gaba (IF) na 1 mA. Matsakaicin tsayin tsayin fitarwa (λp) yawanci 639 nm ne, kuma babban tsayin tsayi (λd) shine 631 nm a IF=20mA, yana sanya shi cikin yankin ja mai tsananin haske. Rabin faɗin layin bakan (Δλ) shine 20 nm, yana nuna launi mai tsafta. Ƙarfin wutar lantarki na gaba (VF) a kowane guntu LED yana tsakanin 2.0V (min) da 2.6V (max) a 20mA. Juyawar halin yanzu (IR) a kowane sashi yana da matsakaicin 100 µA a juyawar wutar lantarki (VR) na 5V. Yana da mahimmanci a lura cewa wannan ƙimar juyawar wutar lantarki don dalilai na gwaji ne kawai; Dole ne a guji ci gaba da aiki a ƙarƙashin juzu'i a cikin da'irar aikace-aikacen. Matsakaicin daidaiton ƙarfin haske tsakanin sassa a cikin yanki mai haske iri ɗaya shine 2:1 matsakaici, yana tabbatar da daidaiton gani. Ƙarin bayanin kula ya ƙayyade cewa mu'amala tsakanin sassa ya kamata ya zama ≤2.5% kuma juriyar wutar lantarki ta gaba ita ce ±0.1V.

3. Bayanin Injiniya da Kunshin

Ana ba da nunin a cikin daidaitaccen tsarin DIP (Dual In-line Package) ta hanyar rami. An yi cikakken bayani game da girman kunshin a cikin takardar bayani tare da duk ma'aunai a cikin millimita. Manyan jurewa sun haɗa da ±0.25mm ga yawancin girma da kuma juzu'in canjin ƙugiya na ±0.4mm. Bayanan kula kan ingancin suna ƙayyade iyakoki don abubuwan waje akan sassa (≤10mil), lanƙwasa mai nuni (≤1% na tsayi), kumfa a cikin sassa (≤10mil), da gurɓataccen tawada a saman (≤20mil). Don ƙirar PCB, ana ba da shawarar diamita rami na 1.0mm don jagororin.

3.1 Haɗin Ƙugiya da Da'irar Ciki

Na'urar tana da tsarin ƙugiya 14, ko da yake ba duk matsayi ne aka cika ba. Tana amfani da tsarin gine-ginen cathode na yawa. Zanen da'irar ciki yana nuna cewa kowane ɗayan lambobi uku yana raba haɗin anode (anode gama gari don lamba 1, 2, da 3 akan ƙugiya 1, 5, da 7 bi da bi). Cathodes na sashi (A-G da DP) an haɗa su a cikin lambobi. Bugu da ƙari, akwai keɓaɓɓun cathodes don LED na gefen dama (L1, L2, L3) waɗanda ke raba anode gama gari akan ƙugiya 14. Wannan tsarin haɗawa yana rage adadin ƙugiyoyin direba da ake buƙata daga 24 (lamba 3 * sassa 8) zuwa 14, yana sauƙaƙa da'irar haɗin kai. Pinout kamar haka ne: Ƙugiya 1: Anode Gama Gari Lamba 1; Ƙugiya 2: Cathode E; Ƙugiya 3: Cathode C, L3; Ƙugiya 4: Cathode D; Ƙugiya 5: Anode Gama Gari Lamba 2; Ƙugiya 6: Cathode DP; Ƙugiya 7: Anode Gama Gari Lamba 2; Ƙugiya 8: Cathode G; Ƙugiyoyi 9,10,13: Babu Haɗi; Ƙugiya 11: Cathode B, L2; Ƙugiya 12: Cathode A, L1; Ƙugiya 14: Anode Gama Gari L1,L2,L3; Ƙugiya 15: Cathode F.

4. Jagororin Aikace-aikace da La'akari da Ƙira

4.1 Tuƙi da Ƙirar Da'ira

Don mafi kyawun aiki da tsawon rai, dole ne a kula da gargaɗin aikace-aikace da yawa. An yi nufin nunin don kayan aikin lantarki na yau da kullun. Ana ba da shawarar sosai amfani da hanyar tuƙi na yau da kullun akan tuƙin wutar lantarki mai ƙarfi. Wannan yana tabbatar da fitar da haske iri ɗaya ba tare da la'akari da bambance-bambance a cikin wutar lantarki ta gaba (VF) na guntu LED ɗaya a cikin nunin ba. Dole ne a ƙera da'irar tuƙi don ɗaukar cikakken kewayon VF (2.0V zuwa 2.6V) don tabbatar da cewa ana ba da halin yanzu da aka yi niyya koyaushe. Dole ne kuma da'irar ta haɗa da kariya daga juyawar wutar lantarki da ƙwanƙwasa wutar lantarki a lokacin kunna wutar lantarki ko kashewa, saboda juzu'i na iya haifar da ƙaura na ƙarfe kuma ya haifar da ƙara yawan ɗigo ko gajeren kewayawa. Ya kamata a rage amincin halin yanzu na aiki bisa ga matsakaicin yanayin yanayin da ake tsammani a ƙarshen aikace-aikacen, ta amfani da ƙimar raguwa na 0.33 mA/°C daga matsakaicin matsakaicin matsakaici.

4.2 La'akari da Yanayin Zafi da Muhalli

Wuce gona da iri na halin yanzu na aiki ko zafin jiki na iya haifar da mummunar lalacewar fitar da haske ko gazawar da ba ta daɗe ba. Dole ne masu ƙira su tabbatar da isasshen zubar da zafi a cikin aikace-aikacen. Ya kamata a guji saurin canje-canje a yanayin yanayi, musamman a cikin yanayi mai yawan ɗanɗano, saboda suna iya haifar da ɗanɗano akan nunin, wanda zai iya haifar da matsalolin lantarki ko na gani. Ya kamata a guji damuwa na injiniya akan jikin nunin yayin haɗawa; Ba za a iya amfani da kayan aiki ko hanyoyin da ba su dace ba.

4.3 Bayanan Haɗawa da Haɗin kai

Idan an yi amfani da fim ɗin kayan ado ko rufi, yawanci ana haɗa shi da manne mai matsa lamba. Ba a ba da shawarar barin wannan gefen fim ɗin ya kasance cikin kusanci da allon gaba ko murfi ba, saboda ƙarfin waje na iya haifar da matsawa. Don aikace-aikacen da ke amfani da nuni biyu ko fiye a cikin saiti ɗaya, ana ba da shawarar yin amfani da nuni daga lambar BIN ɗaya ta ƙarfin haske don guje wa bambance-bambance masu bayyane a cikin haske (rashin daidaituwar launi). Idan samfurin ƙarshe yana buƙatar nunin don gwajin faɗuwa ko girgiza, ya kamata a kimanta takamaiman yanayin gwajin a gaba.

5. Ajiya da Sarrafawa

Ajiya daidai yana da mahimmanci don kiyaye iya solder da aiki. Ana ba da shawarar yanayin ajiya don nunin LED a cikin ainihin kunshinsa shine zafin jiki tsakanin 5°C da 30°C da ɗanɗano dangi ƙasa da 60% RH. Ajiya a wajen waɗannan sharuɗɗan na iya haifar da oxidation na jagororin ɓangaren. Ana ba da shawarar cinye kayan cikin sauri kuma a guji ajiyar adadi mai yawa na dogon lokaci. Idan jakar shinge ta ɗanɗano ta buɗe sama da watanni shida, ana ba da shawarar tsarin gasa na 60°C na awanni 48 kafin haɗawa, tare da kammala haɗawa cikin mako guda bayan gasa.

6. Maɓuɓɓuka na Aiki da Tsarin Binning

Takardar bayani tana nuni zuwa maɓuɓɓuka na halayen lantarki/na gani na yau da kullun, waɗanda a al'ada za su kwatanta alaƙar tsakanin halin yanzu na gaba (IF) da ƙarfin haske (Iv), wutar lantarki ta gaba (VF) da zafin jiki, da rarraba bakan. Waɗannan maɓuɓɓuka suna da mahimmanci ga masu ƙira don hasashen aiki a ƙarƙashin sharuɗɗan da ba daidai ba. An rarraba na'urar (binning) don ƙarfin haske. Wannan yana nufin ana gwada raka'o'i kuma ana haɗa su dangane da aikin hasken da aka auna a daidaitaccen gwajin halin yanzu. Yin amfani da nuni daga kwandon ɗaya a cikin aikace-aikacen raka'a da yawa yana tabbatar da daidaiton gani. Yayin da guntun PDF bai yi cikakken bayani game da tsayin tsayi ko binning wutar lantarki ba, ƙaƙƙarfan ƙayyadaddun bayanai akan babban tsayin tsayi (631nm) da juriyar wutar lantarki ta gaba (±0.1V) a asali suna ba da babban matakin daidaito.

7. Kwatancin Fasaha da Bambance-bambance

Babban bambance-bambancen LTC-4624JR yana ta'allaka ne a cikin amfani da fasahar AlInGaP don LED ja. Idan aka kwatanta da tsofaffin LED ja na GaAsP (Gallium Arsenide Phosphide), AlInGaP yana ba da ingantaccen ingancin haske sosai, yana haifar da ƙarin haske don halin yanzu ɗaya na tuƙi, ko daidaitaccen haske a ƙarancin wutar lantarki. Hakanan yana ba da launin ja mai cikakken cikakke da tsafta (babban tsayin tsayi ~631nm) idan aka kwatanta da launin ja mai launin orange na GaAsP. Ƙirar cathode gama gari ta yawa tana ba da haɗin kai mai inganci idan aka kwatanta da nunin tuƙi na tsaye, yana rage microcontroller I/O ko buƙatun IC direba. Fuskar launin toka tare da sassa farare zaɓi ne na ƙira wanda ke haɓaka bambanci, yana sa ya fi dacewa fiye da duk-ja ko tsarin launi mara bambanci a yawancin aikace-aikace.

8. Tambayoyin da ake yawan yi (Dangane da Ma'auni na Fasaha)

Q: Menene manufar ƙugiyoyin \"L1, L2, L3\" da aka ambata a cikin pinout?

A: Waɗannan ƙugiyoyin cathode ne don ƙarin LED, mai yiwuwa an sanya su a gefen dama na kowace lamba (misali, don colon a cikin nunin agogo ko wasu alamomi). Suna raba anode gama gari akan ƙugiya 14 kuma ana iya sarrafa su ba tare da lambobi bakwai ba.

Q: Zan iya tuƙa wannan nunin tare da microcontroller 5V ta amfani da resistors masu iyakance halin yanzu?

A: Ee, amma ana buƙatar lissafi mai kyau. Zaton VF na 2.6V (max) da IF da ake so na 20mA, resistor na jerin da ake buƙata zai zama R = (5V - 2.6V) / 0.02A = 120 Ohms. Dole ne ku tabbatar cewa ƙugiyar microcontroller na iya nutsewa ko samar da halin yanzu da ake buƙata na yawa. Takamaiman direba IC (kamar MAX7219 ko HT16K33) sau da yawa mafita ce mai ƙarfi.

Q: Matsakaicin halin yanzu na ci gaba shine 25mA a 25°C amma yana raguwa. Wane halin yanzu ne ya kamata in yi amfani da shi don aiki mai aminci a 50°C?

A: Amfani da ƙimar raguwa na 0.33 mA/°C: Hawan zafin jiki = 50°C - 25°C = 25°C. Rage halin yanzu = 25°C * 0.33 mA/°C = 8.25 mA. Saboda haka, matsakaicin halin yanzu na ci gaba da aka ba da shawarar a 50°C shine 25 mA - 8.25 mA =16.75 mA. Yin aiki a ko ƙasa da wannan halin yanzu yana tabbatar da aminci.

Q: Me yasa ake ƙwarin gwiwa sosai game da juzu'i?

A: Yin amfani da juyawar wutar lantarki (ko da 5V da aka yi amfani da shi don gwajin IR) na iya haifar da ƙaura na atom ɗin ƙarfe a cikin haɗin semiconductor. Bayan lokaci, wannan na iya haifar da hanyoyin gudanarwa, yana haifar da ƙara yawan ɗigon ruwa ko gajeren kewayawa na dindindin, yana sa sashin ya daina aiki.

9. Ka'idar Aiki

Nuni mai sassa bakwai taro ne na sandunan LED bakwai (sassa A zuwa G) an jera su a cikin tsarin siffar-\"8\", ƙari da ƙarin LED don maki goma (DP). Ta hanyar zaɓin haskaka takamaiman haɗuɗɗun waɗannan sassa, ana iya samar da duk lambobi goma (0-9) da wasu haruffa. LTC-4624JR yana haɗa irin waɗannan tarukan lamba uku zuwa kunshi ɗaya. Yana amfani da ƙirar cathode gama gari ta yawa. A cikin wannan makircin, duk anodes don sashi ɗaya a cikin lambobi daban-daban an haɗa su tare a ciki. Cathodes na kowane lamba suna dabam. Don nuna lamba, microcontroller yana kunna (yana tuƙi sama) anodes don sassan da ya kamata a haskaka don harafin da ake so akan duk lambobi. Sa'an nan kuma yana ƙasa (yana tuƙi ƙasa) cathode na takamaiman lambar inda wannan harafin ya kamata ya bayyana. Ana maimaita wannan tsari cikin sauri ga kowane lamba (yawanci a mitar >100Hz). Saboda dagewar hangen nesa, duk lambobi uku suna bayyana suna haskakawa lokaci ɗaya kuma ci gaba. Wannan hanyar tana rage adadin layukan sarrafawa da ake buƙata sosai idan aka kwatanta da wayoyi kowane ɗayan sassa 24 (lamba 3 * sassa 8).

10. Trends na Ci gaba da Mahallin

LTC-4624JR yana wakiltar fasaha mai girma kuma mai aminci don nunin lambobi ta hanyar rami. Babban yanayin a fasahar nuni yana motsawa zuwa kunshin na'urar da aka ɗora a saman (SMD) don haɗawa ta atomatik, mafi girman yawa, da kuma bayyanannun bayyanai. Don nunin sassa bakwai, wannan yana nufin kunshin kamar SMD LED akan PCB mai sassauƙa ko ƙira-kan-allon (COB). Hakanan akwai ci gaba da tuƙi zuwa manyan kayan LED masu inganci, tare da AlInGaP kasancewar ma'auni don ja/lemu/rawaya da InGaN don shuɗi/kore/fari. Yayin da OLEDs da ɗigon-matrix LCDs ke ba da ƙarin sassauƙa na hoto, nunin LED mai sassa bakwai sun kasance masu rinjaye a cikin aikace-aikacen da babban haske, faɗin kusurwoyi masu kallo, juriya mai tsananin zafin jiki, da sauƙaƙan karatun lambobi suka fi mahimmanci, kamar a cikin masana'antu, motoci, da kayan aikin waje. Ka'idojin haɗawa da tuƙi na yau da kullun da aka tattauna don wannan na'urar sun kasance tushe don haɗuwa da yawancin nunin LED mai lambobi na zamani, ba tare da la'akari da nau'in kunshin ba.