Takardar Bayanin Fasaha na LTP-2557KD - Nunin LED Matrix Dots - Tsawon Inci 2.0 (50.8mm) - AlInGaP Hyper Red - Tsari 5x7

1. Bayyani Game da Samfur

LTP-2557KD module ne na nunin haruffa da lambobi guda ɗaya, wanda aka ƙera don aikace-aikacen da ke buƙatar fitar da haruffa masu haske da tsabta. Aikin sa na asali shine nuna bayanai a zahiri, yawanci haruffan lambobi ko haruffan ASCII, ta hanyar grid na fitilun LED masu sarrafa kansu.

Na'urar an gina ta akan tsarin matrix dots 5x7, wanda shine ma'auni don wakiltar haruffan lambobi tare da isasshen ƙuduri don karantawa. Tushen fasaha na farko na wannan nunin shine amfani da kayan semiconductor Aluminium Indium Gallium Phosphide (AlInGaP) don guntuwar LED, musamman a cikin tsarin launin Hyper Red. Wannan tsarin kayan sananne ne saboda ingantaccen aiki da haske a cikin yanki na haske mai ja zuwa orange-ja. An ƙera guntayen akan wani substrate na Gallium Arsenide (GaAs) marar gani. A zahiri, module ɗin yana da fuskar farar fata tare da ɗigoɗi farare, wanda ke haɓaka bambanci lokacin da LED ɗin ya kashe kuma yana yada hasken da aka fitar lokacin da aka kunna su.

1.1 Fa'idodi na Asali & Kasuwar da Ake Nufi

Nunin yana ba da fa'idodi masu mahimmanci da yawa saboda ƙirarsa da fasaha. Yana da girman girman harafi na inci 2.0 (50.80 mm), yana haɓaka kyakkyawan gani daga nesa. Gina LED ɗin mai ƙarfi yana tabbatar da ingantaccen aminci, dogon rayuwar aiki, da juriya ga girgiza idan aka kwatanta da tsofaffin fasahohi kamar nunin filament. Ƙirarsa tana buƙatar ƙarancin wutar lantarki don aiki, yana sa ya dace da aikace-aikacen da ke amfani da baturi ko masu kulawa da makamashi. Faɗin kusurwar kallo da aka bayar ta ƙirar jirgin sama guda ɗaya yana tabbatar da cewa nunin ya kasance mai karantawa daga matsayi daban-daban. Bugu da ƙari, an ƙera modules ɗin don yin stacking a kwance, yana ba da damar ƙirƙirar nunin haruffa da yawa ko allunan saƙo.

Kasuwar farko da ake nufi don wannan ɓangaren ta haɗa da allunan sarrafa masana'antu, kayan aikin ma'auni, kayan aikin gwaji da aunawa, tsarin siyarwa a wurin siyarwa, da sauran na'urorin lantarki da aka haɗa inda ake buƙatar karatun lambobi ko haruffan lambobi masu sauƙi, amintacce, da haske. Dacewarsa da ma'aunin haruffa na yau da kullun yana sa ya zama sauƙin haɗawa da microcontrollers da sauran tsarin dijital.

2. Ma'auni na Fasaha & Fassarar Maƙasudi

Wannan sashe yana ba da cikakken bincike na maƙasudi game da ƙayyadaddun bayanai na lantarki, na gani, da muhalli kamar yadda aka ayyana a cikin takardar bayanin. Fahimtar waɗannan ma'auni yana da mahimmanci don ƙirar da'ira daidai da tabbatar da ingantaccen aiki.

2.1 Matsakaicin Matsakaicin Ƙimar

Waɗannan ƙimar suna ayyana iyakokin damuwa waɗanda sama da su lalacewa na dindindin na iya faruwa ga na'urar. Ba a ba da garantin aiki a ƙarƙashin ko a waɗannan iyakokin ba kuma ya kamata a guji su cikin ƙira mai aminci.

• Matsakaicin Ragewar Wutar Lantarki kowane Dot:33 mW. Wannan shine matsakaicin wutar lantarki na ci gaba da kowane ɓangaren LED (dot) zai iya ɗauka ba tare da haɗarin yin zafi ba.
• Matsakaicin Halin Gaba kowane Dot:90 mA. Wannan shine matsakaicin halin yanzu na lokaci-lokaci da aka yarda, yawanci yana da alaƙa da tsarin aikin bugun jini na yau da kullun a cikin nunin da yawa.
• Matsakaicin Halin Gaba kowane Dot:15 mA a 25°C. Wannan halin yanzu yana raguwa a layi a 0.2 mA/°C yayin da yanayin yanayi (Ta) ya ƙaru sama da 25°C. Misali, a 85°C, matsakaicin halin yanzu da aka yarda zai kasance kusan: 15 mA - [0.2 mA/°C * (85°C - 25°C)] = 3 mA.
• Ƙarfin Lantarki na Baya kowane Dot:5 V. Wuce wannan ƙarfin lantarki a cikin karkatar da baya na iya rushe haɗin LED.
• Yanayin Aiki & Ajiya:-35°C zuwa +85°C. An ƙididdige na'urar don yin aiki kuma a adana ta a cikin wannan faɗin yanayin zafi.
• Zafin Solder:260°C na dakika 3, an auna inci 1/16 (≈1.59 mm) a ƙasan matakin zama. Wannan yana ayyana bayanin soldering reflow.

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

Waɗannan su ne ma'auni na aiki na yau da kullun a ƙarƙashin ƙayyadaddun yanayin gwaji, suna wakiltar halin da ake tsammani na na'urar.

• Matsakaicin Ƙarfin Hasken (I_V):2100 (Min), 4600 (Typ) µcd. Yanayin Gwaji: Matsakaicin halin yanzu (I_p) = 32 mA tare da zagayowar aiki 1/16. Wannan tsarin multiplexing shine ma'auni don tuƙi nunin matrix. An rarrabe ƙarfin haske, ma'ana ana rarraba na'urori bisa ga fitar da aka auna.
• Matsakaicin Tsawon Tsawon Tsawon (λ_p):650 nm (Typ). Wannan shine tsawon tsawon raƙuman ruwa inda ƙarfin gani ya fi girma. An auna a I_F= 20 mA.
• Rabin Faɗin Layin Bakan (Δλ):20 nm (Typ). Wannan yana nuna tsabtar bakan ko faɗin band na hasken da aka fitar. Ƙimar 20 nm halayyar LED na AlInGaP ce. An auna a I_F= 20 mA.
• Matsakaicin Tsawon Tsawon (λ_d):639 nm (Typ). Wannan shine tsawon tsawon raƙuman ruwa da idon ɗan adam ke gani, wanda zai iya bambanta kaɗan daga matsakaicin tsawon raƙuman ruwa. An auna a I_F= 20 mA.
• Ƙarfin Lantarki na Gaba kowane Dot (V_F):2.1 V (Min), 2.6 V (Typ). Faɗin ƙarfin lantarki a kan LED lokacin da yake gudanar da 20 mA. Wannan yana da mahimmanci don ƙirar da'irar iyakance halin yanzu.
• Halin Baya kowane Dot (I_R):100 µA (Max). Ƙananan halin yanzu na ɓarna lokacin da aka yi amfani da 5 V a cikin karkatar da baya.
• Matsakaicin Daidaitawar Ƙarfin Hasken (I_V-m):2:1 (Max). Wannan yana ƙayyadad da matsakaicin rabo da aka yarda tsakanin mafi haske da mafi duhu a cikin na'ura guda ɗaya, yana tabbatar da kamanni iri ɗaya.

Bayanan kula akan Aunawa:Ana auna ƙimar ƙarfin haske ta amfani da haɗin firikwensin da tace wanda ke kusanta da aikin haske na CIE photopic, wanda ke ƙirƙira hankalin bakan idon ɗan adam a ƙarƙashin yanayin haske na yau da kullun.

3. Bayanin Tsarin Binning

Takardar bayanin tana nuna cewa na'urorin "an rarraba su don ƙarfin haske." Wannan yana nufin tsarin binning ko rarrabawa.

• Binning Ƙarfin Hasken:Bayan kera, ana gwada kowane na'urar nunin, kuma ana auna matsakaicin ƙarfin haskenta. Sa'an nan kuma ana rarraba raka'o'i zuwa kwandon ko rukuni daban-daban bisa ga fitar da aka auna (misali, kwandon "haske na yau da kullun" da kwandon "haske mai girma"). Wannan yana ba abokan ciniki damar zaɓar sassa waɗanda suka cika takamaiman buƙatun haske kuma yana tabbatar da daidaito a cikin aikin samarwa. Ƙimar yau da kullun na 4600 µcd tana wakiltar tsakiyar rarraba, yayin da mafi ƙarancin 2100 µcd mai yiwuwa yana ayyana ƙananan iyaka na kwandon ma'auni.

4. Binciken Lanƙwasa Aiki

Takardar bayanin tana nuni da "Lanƙwasa Halayen Lantarki/Na Gani na Yau da Kullun." Duk da yake ba a ba da takamaiman zane-zane a cikin rubutun ba, lanƙwasa na yau da kullun don irin waɗannan na'urori yawanci za su haɗa da:

• Halin Gaba vs. Ƙarfin Lantarki na Gaba (I_F-V_FLanƙwasa):Yana nuna alaƙar ma'auni, mai mahimmanci don tantance ƙarfin lantarki da ake buƙata don wani halin yanzu.
• Ƙarfin Hasken vs. Halin Gaba (I_V-I_FLanƙwasa):Yana nuna yadda fitar da haske ke ƙaruwa tare da halin yanzu, yawanci a cikin alaƙar kusa da layi a cikin kewayon aiki kafin raguwar inganci ya faru a halin yanzu mai girma sosai.
• Ƙarfin Hasken vs. Yanayin Yanayi:Yana kwatanta raguwar fitar da haske yayin da zafin haɗin ya tashi, wani mahimmin la'akari ga yanayin zafi mai girma.
• Rarraba Bakan:Zane na matsakaicin ƙarfi daidai gwargwado da tsawon raƙuman ruwa, yana nuna kololuwa a ~650 nm da rabin faɗin ~20 nm.

5. Bayanin Injiniya & Marufi

5.1 Girman Kunshin

An yi nuni da zanen jiki na zahiri. Cikakkun bayanai da aka lura sune cewa an ba da duk ma'auni a cikin milimita, kuma matsakaicin matsakaicin matsakaici shine ±0.25 mm (±0.01 inci) sai dai idan takamaiman bayanin fasali ya faɗi akasin haka. Girman inci 2.0 (50.80 mm) yana nufin tsayin matrix harafin kanta.

5.2 Haɗin Fil & Da'irar Ciki

Na'urar tana da tsarin fil 14. Teburin pinout yana ba da cikakken bayani game da aikin kowane fil, waɗanda su ne haɗin layukan anode da ginshiƙan cathode. Akwai fil ɗin anode 7 (Layuka 1-7) da fil ɗin cathode 5 (Ginshiƙai 1-5), daidai da matrix 5x7. Zanen da'irar ciki yana nuna tsarin matrix: kowane dot LED yana kan mahadar layin layi (anode) da layin ginshiƙi (cathode). Don haskaka takamaiman dot, dole ne a tuƙi fil ɗin layinsa daidai (ko tare da tushen halin yanzu), kuma dole ne a tuƙi fil ɗin ginshiƙinsa daidai (a zubar da shi zuwa ƙasa).

6. Jagororin Solder & Taro

Jagorar farko da aka bayar shine matsakaicin ƙimar matsakaicin zafin solder: 260°C na dakika 3, an auna a wani wuri inci 1/16 (1.59 mm) a ƙasan matakin zama na kunshin. Wannan yana ayyana ma'auni mai mahimmanci don hanyoyin soldering wave ko reflow. Wuce wannan zafin ko lokaci na iya lalata mutuwar ciki, haɗin waya, ko kunshin filastik. Ya kamata a kiyaye matakan kariya na ESD (Electrostatic Discharge) yayin sarrafawa. Faɗin yanayin ajiya (-35°C zuwa +85°C) yana nuna cewa babu wani takamaiman buƙatun ajiya na ƙananan zafin jiki da ake buƙata.

7. Shawarwarin Aikace-aikace

7.1 Da'irorin Aikace-aikacen Yau da Kullun

Wannan nunin yana buƙatar da'irar tuƙi ta waje. Ƙirar gama gari tana amfani da microcontroller tare da isassun fil ɗin I/O ko haɗe tare da masu canjin waje da ICs masu tuƙi. Tsarin tuƙi shine multiplexing: mai sarrafa yana saurin zagayawa ta hanyar kunna layi ɗaya (anode) a lokaci guda yayin samar da bayanan ƙira don ginshiƙai (cathodes) na wannan layin. Zagayowar aiki 1/16 da aka ambata a cikin yanayin gwaji yana nuna yuwuwar tsarin multiplexing (misali, aikin 1/7 na layuka tare da yuwuwar ƙananan zagayowar aiki). Ana buƙatar masu iyakance halin yanzu daidai akan ko dai layukan anode ko cathode don saita halin yanzu na gaba ga kowane LED, wanda aka ƙididdige ta amfani da V na yau da kullun_F(2.6V), ƙarfin lantarkin wadata, da halin yanzu da ake so (misali, 10-15 mA don matsakaicin haske).

7.2 La'akari da Ƙira

• Iyakance Halin Yanzu:Mahimmanci don hana wuce matsakaicin ƙimar matsakaici da kololuwa.
• Mita Multiplexing:Dole ne ya zama mai girma sosai don guje wa flicker da ake iya gani (yawanci >60 Hz sabunta ƙimar).
• Ragewar Zafi:A cikin yanayin zafi mai girma ko aikace-aikacen haske mai girma, yi la'akari da raguwar matsakaicin halin yanzu na gaba.
• Kusurwar Dubawa:Faɗin kusurwar kallo yana da fa'ida amma tabbatar da cewa an ɗora nunin yana fuskantar mai kallo da ake nufi.
• Haɗawa:Dole ne a yi taswirar pinout daidai zuwa da'irar tuƙi. Fasalin stackable yana buƙatar ƙirar injiniya don daidaitawa da ƙirar lantarki don haɗa raka'o'i da yawa a jere (misali, raba layukan ginshiƙi yayin samun damar layuka daban-daban).

8. Kwatancen Fasaha & Mahallin

Idan aka kwatanta da tsofaffin fasahohi kamar nunin fluorescent na vacuum (VFDs) ko ƙananan modules na LED, amfani da LTP-2557KD na fasahar AlInGaP Hyper Red yana ba da fa'idodi a cikin inganci, aminci (babu filament da zai ƙone), da yuwuwar ƙarancin ƙarfin lantarki fiye da wasu VFDs masu ƙarfin lantarki. Girman sa na inci 2.0 ya fi girma fiye da na kowa inci 0.56 ko inci 1, yana biyan buƙatun aikace-aikacen da ke buƙatar tazara mai nisa. Idan aka kwatanta da OLEDs na zamani ko TFTs, yana da sauƙi, mafita mai tsada don nunin harafin ƙayyadaddun tsari inda ba a buƙatar cikakkun zane-zane ba.

9. Tambayoyin da ake yawan yi (Bisa Ma'auni)

• Q: Wane halin yanzu na tuƙi ya kamata in yi amfani da shi?A: Don aiki na dogon lokaci mai aminci, ƙira don Matsakaicin Halin Gaba na 15 mA ko ƙasa da haka kowane dot a matsakaicin yanayin yanayin da kuke tsammani, yin amfani da ƙimar raguwa idan ya cancanta. Yanayin gwaji na 32 mA yana amfani da halin yanzu mai bugun jini tare da ƙananan zagayowar aiki.
• Q: Zan iya haɗa dots da yawa kai tsaye a layi daya?A: Ba a ba da shawarar saboda V_Fbambanci tsakanin LEDs, wanda zai iya haifar da raba halin yanzu mara daidaituwa da haske. Kowane dot/ɓangare ya kamata a yi masa nasa resistor mai iyakance halin yanzu a cikin tuƙi matrix multiplexed.
• Q: Ta yaya zan ƙirƙiri nunin lambobi da yawa?A: Yi amfani da fasalin stacking a kwance. Aikin injiniya daidaita modules. A lantarki, zaku iya haɗa layukan ginshiƙi (cathode) daidai na duk modules tare sannan kuka tuƙi layukan layi (anode) na kowane module da kansu don yin multiplexing a cikin duk lambobi.
• Q: Menene bambanci tsakanin Matsakaicin Tsawon Tsawon da Rinjaye?A: Matsakaicin tsawon raƙuman ruwa shine inda mafi ƙarfin ƙarfin gani ke fitarwa. Matsakaicin tsawon raƙuman ruwa shine tsawon raƙuman ruwa guda ɗaya na haske mai launi ɗaya wanda zai bayyana yana da launi ɗaya ga idon ɗan adam. Ga wannan LED ja, suna kusa (650 nm vs 639 nm).

10. Ka'idar Aiki

Ka'idar asali ita ce electroluminescence a cikin haɗin p-n semiconductor. Lokacin da ƙarfin lantarki na gaba wanda ya wuce kofa na kunna diode (kusan V_F) aka yi amfani da shi, ana shigar da electrons da ramuka cikin yanki mai aiki na semiconductor AlInGaP. Waɗannan masu ɗaukar caji suna sake haɗuwa, suna sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke cikin gawa na AlInGaP yana ƙayyade ƙarfin bandgap don haka tsawon raƙuman ruwa (launi) na hasken da aka fitar, a wannan yanayin, ja mai girma. Matrix 5x7 an ƙirƙira shi ta hanyar sanya waɗannan guntayen LED guda 35 a cikin tsarin grid kuma a haɗa su ta hanyar tsarin haɗin layin anode na gama gari da na cathode na gama gari, yana ba da damar sarrafa kowane mutum ta hanyar magana matrix.