LTC-2621JE LED Display Datasheet - Tsawon Lambobi 0.28-inch - AlInGaP Ja - 2.6V Farashin Gaba - Takardar Fasaha ta Turanci

1. Bayyani Game da Samfur

LTC-2621JE ƙaramin kayan aiki ne mai nuna lambobi uku mai inganci. Babban aikinsa shine samar da bayanan lambobi masu haske da tsabta a cikin kayan aikin lantarki iri-iri. Fasahar cibiyar ta amfani da guntu LED ja na AlInGaP (Aluminum Indium Gallium Phosphide), waɗanda aka ƙera akan wani abu marar gani na GaAs. Wannan tsarin kayan sananne ne saboda ingancinsa da tsabtar launi a cikin bakan ja. Kayan yana da fuskar launin toka tare da sassan fari, wanda ke haɓaka bambanci da inganta karantawa a ƙarƙashin yanayin haske daban-daban. An rarrabe shi don ƙarfin haske, yana tabbatar da daidaiton matakan haske a cikin samfuran samarwa.

1.1 Fa'idodi na Cibiya da Kasuwar Manufa

An ƙera wannan na'urar nuni don aikace-aikacen da sarari ya yi ƙarami amma ganuwa mai mahimmanci ce. Babban fa'idodinsa sun samo asali ne daga ƙirar LED mai ƙarfi, yana ba da ingantaccen aminci da tsawon rayuwa idan aka kwatanta da sauran fasahohin nuni kamar VFDs ko LCDs. Babban kasuwannin manufa sun haɗa da kayan aikin masana'antu, kayan aikin gwaji da aunawa, na'urorin siyarwa, na'urorin likitanci, da na'urorin nuni na dashboard na mota. Ƙarancin wutar lantarki na na'urar ya sa ya dace da na'urori masu amfani da layin wutar lantarki da na'urorin ajiyar baturi masu ɗaukuwa.

2. Zurfin Binciken Sigogi na Fasaha

Wannan sashe yana ba da fassarar ma'auni na mahimman sigogi na fasaha da aka jera a cikin takardar bayanai.

2.1 Halaye na Photometric da na Gani

Ƙarfin haske ma'auni ne mai mahimmanci. A daidaitaccen gwajin na'urar na 1mA, matsakaicin matsakaicin ƙarfin haske (Iv) shine 900 µcd, tare da mafi ƙarancin 320 µcd. Wannan rarrabuwa yana tabbatar da mafi ƙarancin matakin haske. A mafi girman ƙarfin tuƙi na 10mA, matsakaicin ƙarfin yana tashi sosai zuwa 12,000 µcd, yana nuna iyawar na'urar don aikace-aikacen haske mai ƙarfi. Tsawon zango mai rinjaye (λd) an ƙayyade shi azaman 624 nm, kuma tsayin fitarwa mafi girma (λp) shine 632 nm a 20mA, yana sanya shi cikin yankin launin ja. Tsayin rabin layin bakan (Δλ) na 20 nm yana nuna launin ja mai tsabta, mai cikar gaske. An tabbatar da daidaiton ƙarfin haske tsakanin sassan ya kasance cikin rabo 2:1 a 1mA, yana tabbatar da kamanni iri ɗaya a duk faɗin na'urar nuni.

2.2 Ma'auni na Lantarki

Farashin gaba (Vf) kowane sashi yawanci 2.6V ne tare da matsakaicin 2.6V a farashin gaba (If) na 20mA. Wannan daidaitaccen ƙarfin lantarki ne don LED na AlInGaP. An ƙayyade juzu'in juzu'i (Ir) a matsakaicin 100 µA lokacin da aka yi amfani da juzu'in juzu'i (Vr) na 5V, yana nuna halayen ɓarna na diode. Madaidaicin iyakokin ƙididdiga suna ayyana iyakokin aiki: ci gaba da farashin gaba na 25 mA kowane sashi (an rage shi a layi sama da 25°C a 0.33 mA/°C), matsakaicin farashin gaba na 90 mA don aikin bugun jini (1/10 aikin aiki, 0.1ms faɗin bugun jini), da matsakaicin juzu'in juzu'i na 5V. Ragewar wutar lantarki kowane sashi yana iyakance zuwa 70 mW.

2.3 Ƙayyadaddun Zafin Jiki da Muhalli

An ƙididdige na'urar don kewayon zafin jiki na aiki daga -35°C zuwa +85°C, yana sa ya dace da mawuyacin yanayi. Kewayon zafin ajiya iri ɗaya ne. Ma'auni mai mahimmanci na haɗawa shine zafin gishiri: na'urar na iya jurewa matsakaicin 260°C na matsakaicin dakika 3, an auna 1.6mm (1/16 inch) ƙasa da matakin wurin zama. Wannan daidaitaccen buƙatu ne don hanyoyin gishiri na reflow mara gubar.

3. Bayanin Tsarin Binning

Takardar bayanai ta nuna cewa an "rarrabe na'urar don ƙarfin haske." Wannan yana nuna tsarin binning inda ake rarrabe raka'o'i da lakabi bisa ga ƙimar fitowar haske da aka auna a takamaiman gwajin na'urar (mai yiwuwa 1mA). Kwandon yana tabbatar da masu ƙira suna karɓar LED tare da haske mai daidaito, wanda ke da mahimmanci ga na'urorin nuni masu lambobi da yawa don guje wa haske mara daidaituwa. Duk da yake ba a bayyana takamaiman tsarin lambar kwandon a cikin wannan ɓangaren ba, ana ƙayyade kwandon na yau da kullun ta hanyar kewayon ƙimar ƙarfin haske (misali, Kwandon A: 320-450 µcd, Kwandon B: 450-600 µcd, da sauransu). Ba a ambaci binning na ƙarfin lantarki ko tsawon zango don wannan takamaiman sashi ba, yana nuna matsakaicin sarrafawa akan waɗannan ma'auni yayin samarwa.

4. Binciken Lanƙwasa Aiki

Takardar bayanai tana nuni zuwa "Na'urorin Halayen Lantarki / Na Gani." Ko da yake ba a ba da takamaiman jadawali a cikin rubutun ba, zamu iya ƙididdige daidaitaccen abun ciki da mahimmancinsu don ƙira.

4.1 Farashin Gaba vs. Farashin Gaba (Lanƙwasa I-V)

Wannan lanƙwasa shine tushe. Yana nuna alaƙar da ke tsakanin na'urar da ke gudana ta wani sashi na LED da ƙarfin lantarki a cikinsa. Don LED na AlInGaP, lanƙwasa yana nuna juyi mai kaifi a kusan 1.8-2.0V, bayan haka ƙarfin lantarki yana ƙaruwa kaɗan kaɗan tare da babban ƙaruwa a cikin na'urar. Masu ƙira suna amfani da wannan lanƙwasa don zaɓar masu jurewa na'urar da suka dace don ƙirar tuƙi don tabbatar da aiki mai ƙarfi da hana guduwar zafi.

4.2 Ƙarfin Hasken vs. Farashin Gaba

Wannan jadawali yana nuna yadda fitowar haske ke aunawa tare da ƙarfin tuƙi. Yawanci, yana kusan layi ne a ƙananan na'urorin amma yana iya nuna alamun raguwar inganci (rage inganci) a manyan na'urorin saboda tasirin zafi da lantarki. Lanƙwasa yana taimaka wa masu ƙira daidaita buƙatun haske tare da amfani da wutar lantarki da tsawon rayuwar na'urar.

4.3 Ƙarfin Hasken vs. Yanayin Yanayi

Fitowar hasken LED yana raguwa yayin da zafin haɗin yake ƙaruwa. Wannan lanƙwasa yana ƙididdige wannan alaƙa, yana nuna ƙarfin haske mai alaƙa azaman aikin zafin yanayi (ko harka). Yana da mahimmanci ga aikace-aikacen da ke aiki a kan faɗin zafin jiki, kamar yadda yake sanar da daidaitawar haske da ake buƙata ko rage ƙima.

4.4 Rarraba Bakan

Tsarin bakan zai nuna ƙarfin lantarki mai alaƙa da aka fitar a cikin tsayin zango, wanda ya ta'allaka a kusa da 632 nm tare da ƙayyadadden rabin faɗin 20 nm. Wannan yana tabbatar da wurin launi da tsabta.

5. Bayanin Injiniya da Fakitin

5.1 Girma da Zanen Bayani

Na'urar tana da daidaitaccen fakitin nuni na LED. Tsawon lambobi shine 0.28 inches (7.0 mm). An ba da girman fakitin a cikin milimita tare da jurewar gabaɗaya na ±0.25 mm (0.01") sai dai idan an lura da haka. Zanen zai nuna tsawon gabaɗaya, faɗi, da tsayin fakitin, tazarar lambobi, girman sassan, da tazarar jagora (pitch).

5.2 Tsarin Fil da Gano Polarity

Na'urar tana da tsarin fil 16, ko da yake ba duk wuraren da aka cika ba (fil 9, 10, 11, 14 an jera su azaman "Babu Haɗin" ko "Babu Fil"). Nau'in anode gama gari ne na multiplex. Wannan yana nufin cewa an haɗa anodes na LED na kowane lamba a ciki (fil 2, 5, 8 don lambobi 1, 2, 3 bi da bi, da fil 13 don colon/alamomin gefen hagu L1, L2, L3). An raba cathodes na sassan guda ɗaya (A-G, DP) a duk lambobi. Fil 1 an gano shi azaman cathode na sashi D. Gano daidai fil 1 yana da mahimmanci don daidaitaccen alkibla yayin haɗa PCB. Ma'anar goma na gefen dama (DP) ana sarrafa ta ta hanyar nasa cathode akan fil 3.

6. Jagororin Gishiri da Haɗawa

Babban jagora da aka bayar shine bayanin zafin gishiri mafi girma: matsakaicin zafin jiki na 260°C na matsakaicin dakika 3, an auna a wuri 1.6mm ƙasa da matakin wurin zama na fakitin. Wannan daidaitaccen bayanin reflow na JEDEC ne don abubuwan da ke da hankali ga damuwa na zafi. Ana ba da shawarar sosai don bin bayanin reflow da masana'anta suka ba da shawarar idan an ba da shi a cikin takardar aikace-aikace daban. Ƙa'idodin kulawa na gabaɗaya sun shafi: guji matsin lamba na injiniya akan jagororin da fuskar gilashi/epoxy, adana a cikin yanayin hana tashin hankali da sarrafa danshi idan an ƙayyade, kuma amfani da matakan kariya na ESD da suka dace yayin kulawa.

7. Shawarwari na Aikace-aikace

7.1 Da'irorin Aikace-aikace na Yau da Kullun

LTC-2621JE yana buƙatar ƙirar tuƙi na waje saboda ƙirar sa ta anode gama gari na multiplex. Aikace-aikacen na yau da kullun yana amfani da microcontroller tare da isassun fil ɗin I/O ko takamaiman mai tuƙi na nuni na LED (kamar MAX7219 ko makamancinsa). Microcontroller zai bi da bi ya kunna anode gama gari na lamba ɗaya (ta hanyar tuƙa shi sama) yayin da yake fitar da tsarin cathode don sassan da ake so na wannan lamba. Wannan tsari yana maimaitawa cikin sauri ga duk lambobi uku, yana dogaro da dagewar hangen nesa don ƙirar hoto mai ƙarfi, mara flicker. Masu jurewa na'urar wajibi ne akan kowane layin cathode na sashi (ko a cikin mai tuƙi na IC) don saita farashin gaba, yawanci tsakanin 5-20 mA dangane da hasken da ake buƙata.

7.2 Abubuwan Tunani na Ƙira

• Matsakaicin Multiplexing:Tare da lambobi 3, aikin aiki na multiplexing shine 1/3. Don cimma matsakaicin haske iri ɗaya da lambar da aka tuƙa a tsaye, matsakaicin bugun jini na iya kai sau uku mafi girma, amma dole ne ya wuce matsakaicin matsakaicin iyakar bugun jini na 90 mA.
• Sake Sabunta Ƙimar:Ya kamata mitar duban lambobi ta yi yawa sosai don guje wa flicker da ake iya gani, yawanci sama da 60 Hz kowane lamba, yana haifar da jimlar mitar sabunta nuni >180 Hz.
• Kusurwar Dubawa:Takardar bayanai ta yi iƙirarin cewa kusurwar dubawa mai faɗi. Don mafi kyawun karantawa, ya kamata a ɗora na'urar nuni daidai da babban alkiblar dubawa.
• Tsarin Wutar Lantarki:Tabbatar da cewa da'irar mai tuƙi ba ta amfani da juzu'in juzu'i ko ƙaruwar na'urar da ba ta dace ba yayin kunna wutar lantarki ko kashe wutar lantarki.

8. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da tsofaffin fasahohi kamar LED ja na GaAsP (Gallium Arsenide Phosphide), fasahar AlInGaP a cikin LTC-2621JE tana ba da ingantaccen inganci na haske sosai, yana haifar da haske mafi girma don irin wannan ƙarfin tuƙi ko ƙarancin amfani da wutar lantarki don irin wannan haske. Launin ya fi cikar gaske, "gaskiya" ja idan aka kwatanta da launin ja-orange na yawancin LED na GaAsP. Idan aka kwatanta da na'urorin nuni na gefen haske ko matrix na ɗigo na zamani, wannan na'urar tana ba da tsarin 7-sashi na gargajiya, mai iya karantawa sosai wanda ya dace da bayanan lambobi. Babban bambance-bambancensa shine haɗuwa da ƙaramin girman lamba 0.28" tare da fa'idodin aikin kayan AlInGaP.

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

Q: Shin zan iya tuƙa wannan na'urar nuni tare da daidaitaccen ƙarfin lantarki na DC ba tare da iyakance na'urar ba?

A: A'a. LED na'urori ne masu tuƙi. Yin amfani da daidaitaccen ƙarfin lantarki, musamman wanda ke kusa ko sama da farashin gaba, zai sa na'urar ta tashi ba tare da sarrafawa ba, mai yuwuwa ya lalata sassan LED. Koyaushe yi amfani da mai jurewa na'urar na jeri ko mai tuƙi na'urar akai-akai.

Q: An ƙayyade ƙarfin haske a 1mA da 10mA. Shin zan iya ƙididdige don wasu na'urorin?

A: Kusan, i. Alakar tana kusan layi ne a ƙananan na'urorin. Koyaya, don ƙira daidai, musamman a manyan na'urorin, duba lanƙwasa na yau da kullun na ƙarfin haske vs. farashin gaba idan akwai.

Q: Menene manufar fil ɗin "Babu Haɗin"?

A: Suna yiwuwa masu riƙe wurin injiniya ne don kiyaye daidaitaccen ƙafar 16-pin DIP (Dual In-line Package) don dacewa da daidaitattun soket da shimfidar PCB, ko da yake ƙirar lantarki na ciki ba ta amfani da su.

Q: Ta yaya zan sarrafa alamomin colon (L1, L2, L3)?

A> Sassan colon suna raba anode gama gari akan fil 13. An ɗaure cathodes ɗinsu guda ɗaya zuwa cathodes na sassan A, B, da C (fil 15, 12, da 6 bi da bi). Don haskakawa, misali, L1, za ku kunna anode gama gari akan fil 13 yayin da kuke tuƙa cathode don sashi A (fil 15) ƙasa.

10. Nazarin Ƙira da Amfani

Harka: Ƙirar Nuni na Digital Multimeter mai ɗaukuwa

Mai ƙira yana ƙirƙirar ƙaramin ma'aunin dijital. Babban abubuwan da ake buƙata sune ƙarancin amfani da wutar lantarki don rayuwar baturi, haske mai ƙarfi don amfani da waje, da ƙaramin siffa. LTC-2621JE babban ɗan takara ne mai kyau. Mai ƙira ya zaɓi ƙarfin tuƙi na 8 mA kowane sashi a cikin yanayin multiplex. Ta amfani da aikin aiki na 1/3, matsakaicin bugun jini shine 24 mA, yana cikin iyakar 90 mA. Ana amfani da microcontroller tare da sassan mai tuƙi na LED da aka gina a ciki. Ƙirar fuskar toka/sashi fari tana ba da babban bambanci ko da a cikin hasken rana kai tsaye. Ƙarancin farashin gaba yana rage asarar wutar lantarki a cikin ƙirar tuƙi. Girman lamba 0.28" yana ba da damar shimfidar PCB mai ƙarami yayin kiyaye kyakkyawan karantawa. Faɗin kewayon zafin jiki na aiki yana tabbatar da aiki mai aminci daga gareji mai sanyi zuwa dashboard mota mai zafi.

11. Gabatarwa da Ka'idar Aiki

LTC-2621JE ya dogara ne akan electroluminescence na semiconductor. Tsarin guntu na AlInGaP ya samar da haɗin p-n. Lokacin da aka yi amfani da farashin gaba wanda ya wuce yuwuwar da aka gina na haɗin, electrons daga yankin n da ramuka daga yankin p ana shigar da su cikin yankin aiki inda suke sake haɗuwa. A cikin AlInGaP, wannan sake haɗuwa da farko yana sakin makamashi a cikin nau'in photons (haske) a cikin kewayon tsayin zango ja (~624-632 nm). Substrate na GaAs marar gani yana ɗaukar duk wani haske da aka fitar ƙasa, yana inganta ingantaccen fitar da haske daga saman guntu. Hasken yana wucewa ta cikin ruwan tabarau na epoxy da aka ƙera zuwa siffar sashi da ake so, wanda kuma yana ba da kariya ga muhalli.

12. Trends na Fasaha da Mahallin

Fasahar AlInGaP ta wakilci ci gaba mai mahimmanci a cikin aikin LED da ake iya gani, musamman don launuka ja, orange, da rawaya, lokacin da aka sayar da ita a cikin shekarun 1990. Ya maye gurbin ƙarancin ingantaccen fasahar GaAsP da GaP don aikace-aikacen inganci. Trends a cikin na'urorin nuni ya kasance zuwa ga haɗin kai mafi girma (haɗa mai tuƙi na IC cikin fakitin nuni), fakitin ɗora fuska don haɗawa ta atomatik, da haɓaka cikakken launi RGB matrix nuni. Koyaya, sauƙaƙe, amintacce, da ingantaccen tsada na'urorin nuni 7-sashi kamar LTC-2621JE sun kasance masu dacewa sosai ga aikace-aikacen da ake buƙatar bayanan lambobi kawai, saboda ƙarancin karantawa, sauƙin mu'amala, da ingantaccen aminci a aikace-aikacen filin. Ci gaba da ci gaba a cikin kayan LED, kamar micro-LEDs, suna mai da hankali kan yawan yawa da inganci, amma don daidaitattun na'urorin nuni masu rarrabuwa, AlInGaP da InGaN (don shuɗi/kore) suna ci gaba da zama fasahohin aikin.