Takardar Bayanin LTC-47C1SW LED Display - Tsayin Lamba 0.4-inch - Farin Launi - Ƙarfin Wutar Gaba 3.2V - Ragewar Wutar Lantarki 35mW - Takardar Fasaha ta Hausa

1. Bayyane Game da Samfur

LTC-47C1SW na'urar nuni ce mai lamba huɗu, mai sassa bakwai don nuna lambobi da haruffa. Tana da tsayin lamba 0.4 inches (10.16 mm), wanda ya sa ta dace da aikace-aikacen da ke buƙatar karanta lambobi masu tsayi matsakaici da bayyananne. Nuni yana amfani da fitilun LED masu haske farin da aka gina bisa fasahar semiconductor na InGaN (Indium Gallium Nitride) wanda aka ɗora a kan tushen sapphire. Na'urar tana ba da bayyanar mai ƙarfi tare da sassan farin haske a kan fuskar baki. An gina shi azaman kunshin da ba shi da gubar bisa ga umarnin RoHS (Ƙuntata Abubuwa Masu Haɗari).

1.1 Fa'idodi na Cibiyar da Kasuwar da Ake Nufi

Wannan nuni yana ba da fa'idodi masu mahimmanci ga injiniyoyin ƙira na lantarki. Ƙarancin buƙatun wutar lantarki yana sa ya zama mai inganci, yayin da babban haske da kyakkyawan bayyanar haruffa ke tabbatar da iya karantawa a cikin yanayi daban-daban na haske. Faɗin kusurwar kallo yana da mahimmanci ga aikace-aikacen da za a iya kallon nuni daga wurare masu nisa. Amintaccen ingancin da ke cikin fasahar LED yana ba da tsawon rayuwar aiki da juriya ga girgiza da rawar jiki. Waɗannan halayen sun sa LTC-47C1SW ya zama mai dacewa da na'urorin lantarki na mabukaci, kayan aikin masana'antu, kayan aikin gwaji da aunawa, tashoshin siyarwa, da nunin dashboard na mota inda ake buƙatar ingantaccen bayanin lambobi.

2. Fassarar Maƙasudin Ma'auni na Fasaha

2.1 Halayen Hoto da Lantarki

Aikin LTC-47C1SW an ayyana shi a ƙarƙashin daidaitattun yanayin gwaji a yanayin zafin yanayi (Ta) na 25°C. Maɓallan ma'auni suna ba da cikakkiyar fahimtar yanayin aikinsa.

• Ƙarfin Hasken (Iv):Matsakaicin ƙarfin haske na kowane sashi shine millicandelas 18 (mcd) lokacin da aka yi amfani da shi tare da ƙarfin gaba (IF) na 10 mA. Ƙananan ƙimar da aka ƙayyade shine 12.8 mcd. Wannan ma'auni yana ƙididdige hasken da ake gani na sashin da aka haskaka.
• Ƙarfin Wutar Gaba (VF):Ragewar wutar lantarki a kan sashin LED lokacin da ake gudanar da wutar lantarki. Ga wannan na'urar, matsakaicin ƙarfin wutar gaba yana tsakanin 2.70V zuwa 3.2V a gwajin wutar lantarki na 5 mA. Wannan ƙimar tana da mahimmanci don ƙira da'irar iyakance wutar lantarki a cikin direba.
• Ma'auni na Launi (x, y):Waɗannan ma'auni suna ayyana wurin launin farin haske akan zanen launi na CIE 1931. Matsakaicin ƙimar da aka bayar (x=0.294, y=0.286) yana nuna takamaiman inuwar farin. Ana amfani da jurewar ±0.01 ga waɗannan ma'auni.
• Wutar Lantarki ta Baya (IR):Matsakaicin wutar lantarki da za ta ɓace lokacin da aka yi amfani da ƙarfin baya na 5V shine 100 µA. Yana da mahimmanci a lura cewa wannan ma'auni don dalilai na gwaji ne kawai; ba a nufin na'urar don ci gaba da aiki a ƙarƙashin ƙarfin wutar lantarki ta baya ba.
• Crosstalk:Ƙayyadaddun ≤ 2.5% yana nuna matsakaicin izinin ɓarkewar haske ko tsangwama na lantarki tsakanin sassan ko lambobi maƙwabta, yana tabbatar da bayyananniyar haruffa.

2.2 Matsakaicin Ƙimar Cikakke

Waɗannan ƙimar suna ayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na iya faruwa ga na'urar. Ba a ba da shawarar aiki a waje da waɗannan iyakokin ba.

• Ragewar Wutar Lantarki Kowane Sashi:35 mW matsakaici.
• Matsakaicin Ƙarfin Wutar Gaba Kowane Sashi:50 mA matsakaici, a ƙarƙashin yanayin bugun jini (mitar 1 kHz, cikakken aiki 10%).
• Ci gaba da Ƙarfin Wutar Gaba Kowane Sashi:Matsakaicin ci gaba da wutar lantarki yana raguwa a layi daya daga ƙimarsa a 25°C a ƙimar 0.125 mA/°C yayin da yanayin zafi ya karu.
• Kewayon Zafin Aiki:-35°C zuwa +80°C.
• Kewayon Zafin Ajiya:-35°C zuwa +105°C.
• Yanayin Solder:Na'urar na iya jure wa solder na igiyar ruwa ko sake karkarwa tare da zafin da ake auna a wani wuri 1/16 inch (kusan 1.6 mm) a ƙasan filin zama bai wuce 260°C ba na dakika 3.

3. Bayanin Tsarin Binning

LTC-47C1SW yana amfani da tsarin binning na launi don rarraba na'urori bisa daidaitaccen wurin launin farinsu. Wannan yana da mahimmanci ga aikace-aikacen da ke buƙatar daidaiton launi a cikin nunin da yawa ko a cikin na'urar mai lambobi da yawa. Ana ayyana kwandon ta hanyar quadrilaterals akan zanen launi na CIE 1931, wanda aka ƙayyade ta hanyar ma'auni na kusurwa (x, y). Takardar bayanin ta lissafa kwandon da yawa (misali, S1-2, S2-2, S3-1, S3-2, S4-1, S4-2, S5-1, S6-1). Kowane kwandon yana da ƙayyadaddun jurewar ±0.01 akan duka ma'auni na x da y. Wannan tsarin yana ba masana'antun damar zaɓar LED daga takamaiman kwandon don cimma daidaiton bayyanar farin a duk sassa da lambobi, yana rage bambancin launi na gani.

4. Bayanin Injiniya da Marufi

4.1 Girma da Jurewa

Zanen tsarin kunshin yana ba da mahimman ma'auni na injiniya don shimfidar PCB (Kwastam na Lantarki da aka Buga) da haɗawa. Duk manyan ma'auni suna cikin milimita tare da daidaitaccen jurewar ±0.25 mm sai dai idan an ƙayyade.

• Jurewar Canjin Ƙarshen Ƙirƙira:Iyakar karkata a matsayin ƙarshen ƙirƙira shine ±0.25 mm.
• Cikakken Bayanin Spacer:An ƙera fasalin spacer don ba da izinin zamewa na ±0.5 mm, mai yiwuwa yana taimakawa wajen daidaitawa yayin haɗawa.
• Diamita na Ramin PCB da Ake Ba da Shawara:0.9 mm ana ba da shawarar don jagororin.

4.2 Ƙayyadaddun Bayyanar da Kayan Ado

Takardar bayanin ta haɗa da ma'auni da yawa na sarrafa inganci da suka shafi bayyanar nuni:

• Duk wani abu na waje akan sashi dole ne ya zama ≤ 10 mils (0.254 mm).
• Gurɓataccen tawada a saman dole ne ya zama ≤ 20 mils (0.508 mm).
• Lanƙwasa na mai nuni dole ne ya zama ≤ 1% na tsawonsa.
• Kumfa a cikin sashi dole ne ya zama ≤ 10 mils (0.254 mm).
• Wani takamaiman bayanin kula ya tilasta amfani da \"ƙirƙira mai tauri kawai,\" yana nuna buƙatar ƙirƙira tare da isasshen ƙarfin injiniya.

5. Da'irar Ciki da Tsarin Ƙirƙira

LTC-47C1SW nuni ne na cathode gama gari. Zanen da'irar ciki yana nuna cewa kowane lamba huɗu yana raba haɗin cathode. Sassa bakwai (A, B, C, D, E, F, G) da maki goma biyu (DP1, DP2) suna da anodes ɗin su an haɗa su cikin tsari mai yawa. Musamman, anodes na sassan an haɗa su tsakanin lambobi biyu (Lambobi 1 & 2 da Lambobi 3 & 4) don sauƙaƙe rarraba lokaci, dabarar gama gari don sarrafa nunin lambobi da yawa tare da ƙananan ƙirƙira direba.

Teburin haɗin ƙirƙira 20 yana da mahimmanci don igiyoyin lantarki daidai:

• Ƙirƙira 5, 10, 15, 20 sune cathodes gama gari na lambobi 2, 4, 3, da 1 bi da bi.
• Ƙirƙira 2 da 7 sune anodes na maki goma DP1 da DP2.
• Sauran ƙirƙira sune anodes na sassa daban-daban (A-G), waɗanda aka raba tsakanin takamaiman lambobi biyu kamar yadda aka nuna a cikin tebur. Misali, Ƙirƙira 1 ita ce anode na sashin D na lambobi 1 da 2.

6. Jagororin Solder da Haɗawa

Daidaitaccen sarrafawa da haɗawa yana da mahimmanci ga aminci. Na'urar tana da hankali ga Ragewar Lantarki (ESD). Ana ba da shawarar sosai don amfani da abin wuya ko safar hannu masu hana lantarki yayin sarrafawa, da kuma tabbatar da cewa duk kayan aiki da wuraren aiki suna da tushe daidai.

Don solder, maɓallin ma'auni shine iyakance zafin jiki na na'urar. Ƙayyadaddun yana ba da izinin matsakaicin zafin 260°C da aka auna 1.6 mm a ƙasan filin zama na tsawon dakika 3 yayin ayyukan solder na igiyar ruwa ko sake karkarwa. Yin bin waɗannan iyakokin yana hana lalacewar zafi ga guntun LED da kunshin filastik.

7. Shawarwarin Aikace-aikace

7.1 Da'irori na Aikace-aikacen Yau da Kullun

Tsarin cathode gama gari, anode mai yawa an ƙera shi don amfani da microcontroller ko takamaiman IC direban LED. Da'irar yau da kullun ta ƙunshi amfani da maɓallan transistor (misali, NPN BJTs ko N-channel MOSFETs) don zubar da wutar lantarki ta hanyar cathode na kowane lamba a jere (binciken lamba). Ana sarrafa layukan anode na sassa tare da tsarin da ya dace ta hanyar resistors masu iyakance wutar lantarki. Dole ne mitar mai yawa ya zama mai girma sosai (yawanci >60 Hz) don guje wa flicker da ake iya gani saboda ci gaba da gani.

7.2 Abubuwan da Ake La'akari da Ƙira

• Iyakance Wutar Lantarki:Resistors na waje wajibi ne ga kowane layin anode don saita ƙarfin wutar gaba (misali, 5-10 mA kowane sashi kamar yadda takardar bayanin ta ce). Ana iya ƙididdige ƙimar resistor ta amfani da R = (Vcc - VF) / IF, inda Vcc shine ƙarfin wutar lantarki, VF shine ƙarfin wutar gaba na LED (amfani da matsakaicin ƙima don aminci), kuma IF shine ƙarfin wutar gaba da ake so.
• Ƙarfin Direba:Dole ne IC direba ko tashar microcontroller ya iya samar da jimlar wutar lantarki ga duk sassan da aka haskaka a cikin lamba ɗaya a lokacin aikinsa.
• Kusurwar Kallo:Faɗin kusurwar kallo yana ba da sassauci a cikin matsayin ɗora dangane da mai amfani.
• Gudanar da Zafi:Duk da cewa ragewar wutar lantarki yana da ƙasa, tabbatar da isasshen iska a cikin akwati yana taimakawa wajen kiyaye tsawon rayuwar LED, musamman a manyan yanayin zafi na yanayi.

8. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da sauran nunin sassa bakwai, amfani da LTC-47C1SW na guntun farin SMD na InGaN yana ba da fa'idodi akan tsofaffin fasahohi kamar LED jajayen GaAsP ko farin LED da aka tace. LED na InGaN gabaɗaya suna ba da inganci mafi girma, mafi kyawun kwanciyar hankali na launi akan lokaci, da kuma mafi daidaitaccen wurin launin fari. Tsayin lamba 0.4-inch yana sanya shi tsakanin ƙananan nunin da ake amfani da su a cikin na'urorin hannu da manyan don alamar. Ƙirƙirar sa mai yawa ƙira ce ta daidaitawa wacce ke rage adadin ƙirƙira I/O na mai sarrafa don nunin lamba 4, yana ba da mafita mai inganci da sararin samaniya idan aka kwatanta da nunin da ke da ƙirƙira ɗaya ga kowane sashi na kowane lamba.

9. Tambayoyin da Ake Yawan Yi Bisa Ma'auni na Fasaha

Tambaya: Menene manufar tsarin binning na launi?

Amsa: Binning na launi yana tabbatar da daidaiton launi. Don nunin lambobi da yawa, amfani da LED daga kwandon ɗaya ko maƙwabta yana tabbatar da cewa duk lambobi suna fitar da inuwar farin iri ɗaya, yana hana lamba ɗaya ya bambanta sosai (misali, shuɗi ko rawaya) fiye da maƙwabtansa.

Tambaya: Zan iya sarrafa wannan nuni tare da microcontroller na 5V?

Amsa: I, amma dole ne ku yi amfani da resistors masu iyakance wutar lantarki. Tunda matsakaicin ƙarfin wutar gaba yana kusa da 3V, samar da 5V zai tilasta wutar lantarki mai yawa ta hanyar LED ba tare da resistor ba, mai yiwuwa ya lalata shi. Koyaushe ana buƙatar resistor na jerin.

Tambaya: Menene ma'anar \"cathode gama gari\" ga ƙirar da'irar ta?

Amsa: Cathode gama gari yana nufin duk LED a cikin lamba ɗaya suna raba haɗin mara kyau (ƙasa). Don haskaka lamba, kuna haɗa ƙirƙirar cathode ɗinsa zuwa ƙasa (ta hanyar maɓallin transistor) kuma ku yi amfani da ƙarfin wutar lantarki mai kyau (ta hanyar resistor mai iyakance wutar lantarki) ga anodes na sassan da kuke son haskakawa.

Tambaya: Ta yaya zan fassara ƙimar ƙarfin wutar gaba?

Amsa: Matsakaicin ƙimar 50 mA a cikin cikakken aiki na 10% yana ba da izinin ɗan gajeren bugun jini na mafi girma wutar lantarki don cimma mafi girma haske nan take a cikin tsarin mai yawa. Matsakaicin wutar lantarki akan lokaci bai kamata ya wuce ƙimar ci gaba da wutar lantarki ba, wanda ya fi ƙasa kuma an rage shi da zafin jiki.

10. Gabatarwar Ƙa'idar Aiki

Nuni mai sassa bakwai tarin fitilun LED ne da aka jera a cikin tsarin adadi takwas. Ta hanyar haskaka takamaiman sassa (wanda aka yiwa lakabi A zuwa G), zai iya samar da duk lambobi goma (0-9) da wasu haruffa. LTC-47C1SW yana haɗa irin waɗannan tsarin lambobi huɗu zuwa kunshin guda ɗaya. Kayan semiconductor na InGaN da ake amfani da su a cikin LED suna fitar da hasken shuɗi lokacin da electrons suka sake haɗuwa tare da ramuka a kan bandgap na kayan. Wannan hasken shuɗi an canza shi zuwa mafi tsayin raƙuman ruwa (rawaya) ta hanyar shafi na phosphor a cikin kunshin LED, wanda ke haifar da fahimtar hasken fari ta idon ɗan adam. Dabarar da ake amfani da ita don sarrafa lambobi huɗu tare da saitin direban sassa tana aiki ta hanyar saurin zagayawa da wutar lantarki ga kowane lamba a jere. Lamba ɗaya ne kawai ake haskakawa a kowane lokaci, amma saboda ci gaba da gani na ɗan adam, duk lambobi huɗu suna bayyana a ci gaba da haskakawa idan mitar zagayowar ya isa.

11. Trends na Ci Gaba

Trend a cikin fasahar nunin sassa bakwai yana ci gaba da mayar da hankali kan fagage masu mahimmanci da yawa. Haɓaka inganci a cikin guntun LED na InGaN yana haifar da mafi girma haske a ƙananan wutar lantarki, yana rage amfani da wutar lantarki da samar da zafi. Hakanan akwai motsi zuwa mafi girman daidaiton launi da faɗin kewayon samun yanayin zafin farin haske (misali, farin sanyi, farin tsaka-tsaki, farin dumi) don dacewa da kyawun aikace-aikace. Haɗin kai wani trend ne, tare da wasu nunin da suka haɗa da IC direba da resistors masu iyakance wutar lantarki a cikin module ɗaya, yana sauƙaƙe ƙira ga injiniyan ƙarshe. Bugu da ƙari, ci gaban marufi na iya ba da damar ƙirar sirara da ƙara ƙarfi don aikace-aikacen yanayi mai tsanani.