LTP-3784JD-01 LED Display Datasheet - Tsawon Lambobi 0.54-inch - Hyper Red (650nm) - 2.6V Forward Voltage - 70mW Power Dissipation - Takardar Fasaha ta Hausa

1. Bayanin Samfur

LTP-3784JD-01 babban nuni ne mai lambobi biyu, 14-segment, wanda aka ƙera don aikace-aikacen da ke buƙatar karanta haruffa da lambobi a sarari da haske. Aikin sa na farko shi ne ya ba da bayanin gani na lambobi, haruffa, da alamomi. An gina na'urar ta amfani da fasahar semiconductor ta Aluminium Indium Gallium Phosphide (AlInGaP) akan wani abu mai suna Gallium Arsenide (GaAs) substrate, wanda ke da muhimmanci ga ingantaccen aiki da haske a cikin jadawalin launin ja. Nuni yana da fuskar launin toka mai haske tare da sassuna fari, yana ba da bambanci mai kyau don ingantaccen karantawa.

1.1 Fa'idodi na Asali da Kasuwar Da Ake Nufi

An ƙera wannan nunin don haɗawa cikin kayan aikin lantarki inda sarari, ingantaccen amfani da wutar lantarki, da karantawa suke da muhimmanci. Fa'idodinsa na asali sun samo asali ne daga tsarin kayan AlInGaP, wanda ke ba da ingantaccen haske da kwanciyar hankali a yanayin zafi fiye da na tsoffin LED na ja na Gallium Phosphide (GaP). Kasuwar da ake nufi ta haɗa da, amma ba'a iyakance ga, na'urorin sarrafa masana'antu, kayan aikin gwaji da aunawa, na'urorin siyarwa, na'urorin likitanci, da kayan amfani na gida inda ake buƙatar nuna bayanan yanayi ko lambobi cikin aminci tsawon rayuwar aiki.

2. Zurfin Bincike na Ƙayyadaddun Fasaha

Sassunan masu zuwa suna ba da cikakken bincike na mahimman ma'auni na na'urar.

2.1 Halayen Hoto da Na Gani

Ana ayyana aikin gani a ƙarƙashin daidaitattun yanayin gwaji a yanayin zafi (Ta) na 25°C. Matsakaicin ƙarfin haske kowane sashi ana ƙayyade shi da mafi ƙarancin microcandelas 200 (ucd), ƙimar al'ada na 520 ucd, da matsakaicin kamar yadda aka dace, lokacin da ake tafiyar da shi a gaba mai gudana (IF) na 1 mA. Wannan ma'aunin yana amfani da firikwensin da aka tace don kusantar da lanƙwasa amsawar ido na CIE photopic, yana tabbatar da cewa ƙimar tana da alaƙa da hangen nesa na ɗan adam.

Na'urar tana fitarwa a yankin Hyper Red. Matsakaicin tsayin fitarwa (λp) yawanci shine nanomita 650 (nm). Matsakaicin tsayin rai (λd), wanda ya fi kusantar launin da ake gani, yawanci shine 639 nm. Ramin rabin layin bakan (Δλ) shine 20 nm, yana nuna ingantaccen launin fitarwa. Ma'auni mai mahimmanci ga nunin sassa da yawa shine daidaito. Matsakaicin daidaiton ƙarfin haske tsakanin sassuna a yankuna masu haske iri ɗaya ana ƙayyade shi a matsakaicin 2:1, kuma bambancin daidaiton tsayin rai yana cikin 4 nm, yana tabbatar da daidaiton launi da haske a cikin harafin da aka nuna.

2.2 Ma'aunin Lantarki

Halayen lantarki suna ayyana iyakokin aiki da yanayi na guntuwar LED a cikin nunin. Ba za a wuce matsakaicin ƙayyadaddun ƙididdiga ba don hana lalacewa ta dindindin. Ragewar wutar lantarki kowane sashi yana iyakance ga milliwatts 70 (mW). Gaba mai gudana ana ƙididdige shi don ci gaba da matsakaicin 25 mA kowane sashi, tare da ma'aunin ragewa na layi na 0.28 mA/°C sama da 25°C. Don aikin bugun jini, ana ba da izinin matsakaicin gaba mai gudana na 90 mA a ƙarƙashin zagayowar aiki 1/10 tare da faɗin bugun jini na 0.1 ms.

A ƙarƙashin yanayin aiki na al'ada (IF=20 mA), ƙarfin lantarki na gaba (VF) kowane guntu yana tsakanin 2.1V (m) zuwa 2.6V (mafi girma). Dole ne masu ƙira su yi la'akari da wannan kewayon don tabbatar da cewa da'irar tuƙi za ta iya isar da ƙayyadaddun gudana a duk raka'a. Juyawar gaba mai gudana (IR) kowane sashi shine matsakaicin 100 µA a juyawar ƙarfin lantarki (VR) na 5V. Yana da mahimmanci a lura cewa wannan yanayin juyawar ƙarfin lantarki don dalilai na gwaji ne kawai; ba a ƙera na'urar don ci gaba da aiki a ƙarƙashin juyawar baiɗi ba, kuma da'irar tuƙi dole ne ta haɗa da kariya daga irin waɗannan yanayi.

2.3 Ƙimar Zafi da Muhalli

An ƙididdige na'urar don kewayon yanayin zafi na aiki daga -35°C zuwa +105°C da kuma daidaitaccen kewayon yanayin ajiya. Wannan faɗin kewayon ya sa ya dace don amfani a cikin yanayi daban-daban. Ƙayyadaddun solderability suna da mahimmanci don haɗawa. Na'urar za ta iya jure wa soldering a 260°C na dakika 5, an auna inci 1/16 (kusan 1.6 mm) a ƙasan farantin zama. Don soldering na hannu, an ƙayyade zafin jiki na 350°C ±30°C har zuwa dakika 5.

3. Tsarin Binning da Daidaitawa

Takardar bayanan tana nuna cewa an rarraba na'urar don ƙarfin haske. Wannan yana nuna tsarin binning inda ake rarraba raka'a bisa ga ƙimar fitar haske da aka auna a daidaitaccen gwajin gudana. Duk da yake ba a yi cikakken bayani game da takamaiman lambobin kwandon a cikin wannan ɓangaren ba, irin wannan tsarin yana ba masu ƙira damar zaɓar nunin tare da matakan haske masu daidaito don aikace-aikacensu, wanda ke da mahimmanci ga samfuran da ke da nunin da yawa ko inda daidaito ya fi mahimmanci. Ƙayyadaddun daidaiton daidaiton ƙarfin haske (2:1 max) da daidaiton tsayin rai (4 nm max) suna ayyana ƙarfin kwandon gani yadda ya kamata.

4. Bincike na Lanƙwasa Aiki

Duk da yake ba a sake yin takamaiman jadawali a cikin rubutun ba, takardar bayanan tana nuni ga lanƙwasa halayen lantarki/gani na al'ada. Waɗannan lanƙwasa suna da mahimmanci don cikakken aikin ƙira. Yawanci sun haɗa da:

• Dangantakar Ƙarfin Hasken Gani da Gaba Mai Gudana (Lanƙwasa I-V):Yana nuna yadda fitar haske ke ƙaruwa tare da gudana, yana taimakawa wajen inganta gudanar da tuƙi don haske da inganci da ake so.
• Ƙarfin Lantarki na Gaba da Gaba Mai Gudana:Yana ba da alaƙar motsa jiki don ƙididdige raguwar wutar lantarki da ƙirar masu tuƙi na yau da kullun.
• Dangantakar Ƙarfin Hasken Gani da Yanayin Yanayi:Yana kwatanta raguwar haske na zafi, wanda ke da mahimmanci ga aikace-aikacen da ke aiki a yanayin zafi mai girma.
• Rarraba Ƙarfin Bakan:Jadawali da ke nuna ƙarfin hasken da aka fitar a kowane tsayin rai, yana tabbatar da ƙimar kololuwa da tsayin rai da faɗin bakan.

Injiniyoyi suna amfani da waɗannan lanƙwasa don ƙirar halayen nunin a ƙarƙashin yanayin da ba na daidaitaccen tsari ba da kuma ƙirar da'irori masu ƙarfi na tuƙi.

5. Bayanin Injiniya da Fakitin

5.1 Ma'auni na Jiki da Jurewa

Na'urar tana da tsayin lamba na inci 0.54 (13.8 mm). Zanen fakitin (wanda aka ambata amma ba a nuna ba) ya yi cikakken bayani game da gabaɗayan ma'auni, shimfidar sashi, da matsayin ƙafafu. An lura da ƙayyadaddun ƙayyadaddun ƙira: gabaɗayan ma'auni suna da jurewa na ±0.25 mm, kuma bambancin motsin ƙafar ƙafar shine ±0.40 mm. Ana ba da shawarar diamita ramin PCB don ƙafafun shine 1.25 mm don tabbatar da dacewa yayin haɗawa. Ƙarin bayanan inganci suna magance iyakokin da aka halatta don kayan waje, kumfa a cikin sashi, lanƙwasa mai nuna alama, da gurɓatar tawada ta saman.

5.2 Haɗin Ƙafafu da Zanen Da'ira

Nuni yana da ƙafafu 18 a cikin fakitin layi biyu. Zanen da'ira na ciki yana nuna cewa tsarin cathode na gama gari ne, ma'ana an haɗa cathodes na LED na kowane lamba tare a ciki. Teburin fitar ƙafafu ya bayyana a sarari aikin kowane ƙafar:

• Ƙafafu 11 da 16: Gama gari Cathode don lambobi biyu.
• Sauran ƙafafu (1, 2, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18): Anodes don takamaiman sassuna (A-P, D.P. don maki goma).
• Ƙafa 3: Babu Haɗin (N/C).

Wannan tsari yana buƙatar tsarin tuƙi mai yawa, inda mai sarrafa yake jere yana ba da damar ɗaya cathode na gama gari (lamba) a lokaci ɗaya yayin amfani da ƙarfin lantarki ga anodes na sassunan da ya kamata a haskaka don wannan lamba.

6. Jagororin Solder da Haɗawa

An ƙayyade hanyoyin solder guda biyu:

1. Solder ta Atomatik (Wave/Reflow):Dole ne zafin jikin ɓangaren ya wuce matsakaicin ƙimar lokacin da aka yi soldering ƙafafu a 260°C na dakika 5, tare da wurin saduwar solder 1.6 mm a ƙasan farantin zama.
2. Solder na Hannu:Ana ba da izinin zafi mafi girma na 350°C ±30°C, amma dole ne a iyakance lokacin soldering zuwa dakika 5 don hana lalacewar zafi ga guntuwar LED ko fakitin filastik.

Bin waɗannan bayanan yana da mahimmanci don kiyaye ingancin haɗin waya na ciki da kaddarorin gani na ruwan tabarau na filastik da mai nuna alama.

7. Gwajin Aminci da Cancanta

Na'urar tana fuskantar cikakken jerin gwaje-gwajen aminci bisa ga soja (MIL-STD), masana'antu na Japan (JIS), da ma'auni na ciki. Wannan yana nuna sadaukarwa ga aikin dogon lokaci. Manyan gwaje-gwaje sun haɗa da:

• Gwajin Rayuwar Aiki (RTOL):Awoyi 1000 na ci gaba da aiki a matsakaicin ƙayyadaddun gudana don tantance kula da haske na dogon lokaci da ƙimar gazawa.
• Gwaje-gwajen Danniya na Muhalli:Ajiyar Zafi Mai Zafi (HTS a 105°C), Ajiyar Ƙananan Zafi (LTS a -35°C), Ajiyar Zafi Mai Zafi Mai Zafi (THS a 65°C/90-95% RH), kowane na awa 500-1000.
• Zagayowar Zafi & Girgiza:Zagayowar Zafin Jiki (TC) tsakanin -35°C da 105°C da gwaje-gwajen Girgizar Zafi (TS) don tabbatar da ƙarfi akan matsin lamba na faɗaɗawar zafi.
• Gwaje-gwajen Solderability:Gwaje-gwajen Jure Solder (SR) da Solderability (SA) suna tabbatar da taga tsarin haɗawa.

Wucewa waɗannan gwaje-gwajen yana nuna nunin ya dace da aikace-aikace masu ƙarfi inda gazawa ba za ta yiwu ba.

8. Shawarwari na Aikace-aikace da La'akari da Ƙira

8.1 Yanayin Aikace-aikace na Al'ada

Wannan nunin ya dace da kowane na'urar da ke buƙatar karatun lambobi biyu masu ƙarfi, masu haske. Misalai sun haɗa da ma'aunin zafi na dijital, na'urorin ƙidayar lokaci, ƙididdiga, nunin mita na ƙarfin lantarki/gudana, na'urorin sarrafa masana'antu ƙanana, da allunan sarrafa kayan aiki (misali, tanda, microwave). Ƙarfinsa na haruffa da lambobi (14-segment) yana ba shi damar nuna ƙayyadaddun saƙon rubutu ko lambobi ban da lambobi.

8.2 Muhimman Bayanan Ƙira

Sashen "Gargadi" yana ba da shawara mai mahimmanci na aikace-aikace:

• Ƙirar Da'irar Tuƙi:Ana ba da shawarar tuƙi na yau da kullun da ƙarfi fiye da ƙarfin lantarki don tabbatar da daidaitaccen ƙarfin haske ba tare da la'akari da bambance-bambancen ƙarfin lantarki na gaba (VF) tsakanin raka'a da canje-canjen zafi ba. Dole ne a ƙera da'irar don ɗaukar cikakken kewayon VF (2.1V zuwa 2.6V kowane guntu).
• Kariya:Dole ne da'irar tuƙi ta haɗa da kariya daga juyawar ƙarfin lantarki da saurin canjin ƙarfin lantarki yayin jerin kunna/kashe wutar lantarki, saboda LED suna da saukin lalacewa daga juyawar baiɗi.
• Gudanar da Zafi:Wucewa da ƙayyadaddun gudanar da aiki ko zafin jiki zai hanzarta lalacewar fitar haske (rage lumen) kuma zai iya haifar da gazawa da wuri. Ya kamata a yi la'akari da daidaitaccen zafin jiki ko iska a cikin yanayin yanayi mai zafi.
• Iyakance Gudana:Koyaushe yi amfani da resistors masu iyakance gudana a jere ko direba mai ƙarfi na yau da kullun don hana gaba mai gudana wucewa da cikakkun ƙayyadaddun ƙididdiga, musamman yayin yawan aiki.

9. Kwatancen Fasaha da Bambance-bambance

Babban bambance-bambancen LTP-3784JD-01 shine amfani da fasahar AlInGaP (Aluminium Indium Gallium Phosphide) don guntuwar LED ja. Idan aka kwatanta da tsofaffin fasahohi kamar daidaitattun LED ja na GaP (Gallium Phosphide), AlInGaP yana ba da:

• Mafi Girman Ingantaccen Hasken Gani:Ƙarin fitar haske (lumens) kowane raka'a na wutar lantarki (watts).
• Mafi Kyawun Aikin Zafi Mai Zafi:An rage raguwar inganci a manyan yanayin haɗin gwiwa.
• Mafi Girman Tsabtar Launi:Ƙananan faɗin bakan, yana haifar da launin ja mai cikar gaske.

Waɗannan fa'idodin suna fassara zuwa nunin da ya fi haske, mafi daidaito akan zafin jiki, kuma yana da mafi kyawun bambanci da bayyanar launi fiye da nunin da ke amfani da tsofaffin fasahohin LED, duk yayin da yuwuwar yin aiki a ƙaramin wutar lantarki don irin wannan hasken da ake gani.

10. Tambayoyin da ake yawan yi (Bisa Ƙayyadaddun Fasaha)

Q: Menene bambanci tsakanin tsayin kololuwa (650nm) da tsayin rai (639nm)?

A: Tsayin kololuwa shine tsayin rai guda ɗaya inda bakan fitarwa ya fi ƙarfi. Tsayin rai shine tsayin rai guda ɗaya na hasken monochromatic wanda zai bayyana yana da launi ɗaya da fitarwar LED ga idon ɗan adam. Tsayin rai yawanci yana da amfani don ƙayyadaddun launi.

Q: Me yasa ake ba da shawarar tuƙi na yau da kullun?

A: Fitar hasken LED aikin gudana ne na farko, ba ƙarfin lantarki ba. Ƙarfin lantarki na gaba (VF) na iya bambanta daga raka'a zuwa raka'a kuma yana raguwa tare da ƙaruwar zafin jiki. Tushen ƙarfin lantarki na yau da kullun tare da resistor na iya haifar da bambance-bambance masu yawa a cikin gudana don haka haske. Tushen gudana na yau da kullun yana tabbatar da kwanciyar hankali, hasken da ake iya hasashen.

Q: Shin zan iya tuƙa wannan nunin tare da ƙafar microcontroller 5V kai tsaye?

A: A'a. Kada ka taɓa haɗa LED kai tsaye zuwa tushen ƙarfin lantarki ba tare da tsarin iyakance gudana ba. Ƙarfin lantarki na gaba kusan 2.6V ne kawai, don haka haɗawa zuwa 5V zai haifar da wuce gona da iri na gudana, yana lalata sashin LED nan take. Dole ne ka yi amfani da resistor a jere ko takamaiman IC direban LED.

Q: Menene ma'anar "cathode na gama gari" ga ƙirar da'irata?

A: A cikin nunin cathode na gama gari, kuna ƙasa (saita zuwa LOW) ƙafar cathode na lambar da kuke so ku haskaka. Sa'an nan kuma ka yi amfani da siginar HIGH (ta hanyar resistor mai iyakance gudana ko direba) zuwa ƙafafun anode na sassunan da kuke so a kunna akan wannan lamba. Kuna saurin canzawa (yawan aiki) tsakanin ƙafafun cathode biyu don ƙirƙirar tunanin cewa lambobi biyu suna kunne lokaci guda.

11. Aikin Ƙira da Amfani na Aikace-aikace

Harka: Ƙirar Ƙididdiga Mai Sauƙi na Lambobi Biyu.

Mai ƙira yana son gina ƙididdiga 0-99 ta amfani da microcontroller. Za su haɗa ƙafafun cathode na gama gari biyu (11 & 16) zuwa ƙafafun GPIO daban-daban waɗanda aka saita azaman fitarwa. Za a haɗa ƙafafun anode na sashi 15 zuwa wasu ƙafafun GPIO, kowane ta hanyar resistor mai iyakance gudana (ƙimar da aka ƙididdige kamar (Vcc - VF) / IF). Firmware na microcontroller zai aiwatar da tsarin yawan aiki: saita Cathode na Lamba 1 LOW da Cathode na Lamba 2 HIGH, fitar da tsarin sassunan lamba ta farko akan ƙafafun anode, jira 'yan milliseconds, sannan canza—saita Cathode na Lamba 1 HIGH da Cathode na Lamba 2 LOW, fitar da tsarin don lamba ta biyu. Wannan zagayowar yana maimaitawa da sauri (misali, 100Hz). Muhimman ƙididdiga na ƙira sun haɗa da tabbatar da cewa ƙafafun GPIO za su iya zubar da/ɗaukar ƙayyadaddun gudana da ake buƙata (misali, idan sassuna 8 suna kan kowane lamba a 10mA kowanne, dole ne ƙafar cathode na gama gari ta zubar da 80mA) kuma cewa an daidaita resistors daidai don zaɓin ƙarfin lantarki da gudanar da sashin da ake so.

12. Gabatarwar Ka'idar Fasaha

Ka'idar fitar haske ta asali ita ce electroluminescence a cikin haɗin gwiwar p-n semiconductor. Kayan AlInGaP semiconductor ne mai tsaka-tsaki kai tsaye. Lokacin da aka nuna son ra'ayi, electrons daga yankin n-type da ramuka daga yankin p-type ana shigar da su cikin yankin aiki inda suke sake haɗuwa. Makamashin da aka saki yayin wannan sake haɗuwa ana fitar da shi azaman photons (haske). Takamaiman abun da ke ciki na Aluminium, Indium, Gallium, da Phosphide yana ƙayyade ƙarfin bandgap, wanda kai tsaye yana ayyana tsayin rai (launi) na hasken da aka fitar—a wannan yanayin, a cikin ɓangaren ja na bakan (~650 nm). Substrate na GaAs mara ganuwa yana ɗaukar duk wani haske da aka fitar ƙasa, yana inganta ingantaccen ingantaccen fitar haske daga saman guntu.

13. Trends na Ci gaban Fasaha

Duk da yake wannan takamaiman na'urar tana amfani da fasaha mai girma kuma mai aminci, faɗaɗa trends a cikin nunin LED sun haɗa da:

• Ƙara Ingantacciyar Aiki:Binciken kimiyyar kayan aiki na ci gaba yana nufin inganta ingantaccen ƙididdiga na ciki (IQE) da ingantaccen fitar haske (LEE) na AlInGaP da sauran semiconductors masu haɗaka, wanda ke haifar da nunin da ya fi haske don irin wannan wutar lantarki ko cimma irin wannan haske tare da ƙaramin wutar lantarki.
• Ƙananan Girma:Ci gaba a cikin ƙirar guntu da fakitin yana ba da damar ƙananan ƙafafun pixel da mafi girman ƙudurin nunin a cikin takamaiman ƙafar ƙafa.
• Haɗin kai:Trends sun haɗa da haɗa da'irar direban LED (ko da ma'anar yawan aiki) kai tsaye cikin fakitin nunin don sauƙaƙe ƙira na waje da rage adadin abubuwan.
• Sabbin Kayan Aiki:Don wasu launuka, fasahohi kamar InGaN (don shuɗi/kore/fari) suna ci gaba da haɓakawa. Don ja, akwai bincike kan kayan aiki kamar GaInN (ja na tushen nitride) don ba da damar haɗin gwiwar ja, kore, da shuɗi LED akan substrate ɗaya don cikakken launi micro-displays.

LTP-3784JD-01 yana wakiltar ingantaccen mafita a cikin tsarinta na fasaha, yana daidaita aiki, aminci, da farashi don faɗin aikace-aikacen nunin da aka haɗa.