LTST-S220KEKT SMD LED Takardar Bayani - Duba Gege - Ja (AlInGaP) - 20mA - 50mcd - Takardar Fasaha ta Hausa

1. Bayanin Samfur

LTST-S220KEKT na'urar haɗawa ta saman (SMD) ce ta fitilar haske (LED) wacce aka tsara da farko don aikace-aikacen hasken gefe. Tsarin ginshiƙanta ya yi amfani da guntu na semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP), wanda aka ƙera don samar da hasken ja mai ƙarfi. Babban manufar ƙira da babbar kasuwa don wannan sashi shine haɗawa a matsayin tushen hasken baya don allunan nuni na ruwa (LCD), inda ake buƙatar haske mai daidaito a gefuna.

An yi fakitin sashi a daidaitaccen tsari mai bin ka'idojin EIA, ana bayar da shi akan tef mai inci 8 da aka nannade akan reels masu diamita inci 7. Wannan fakitin ya dace sosai da kayan aikin sarrafawa ta atomatik mai sauri da ake amfani da su a masana'antar kera na'urori na zamani. LED kuma tana da dacewa da daidaitattun hanyoyin gudanar na infrared (IR), gudanar na tururi, da gudanar na igiyar ruwa, wanda ya sa ya dace da samarwa mai yawa.

1.1 Fa'idodi na Asali

• Na'urorin Gani na Musamman:Ƙirar ruwan tabarau mai duban gefe an inganta ta don tura haske a gefe, wanda ya dace don shigar da haske cikin jagororin haske da ake amfani da su a raka'o'in hasken baya na LCD (BLUs).
• Hasken Ƙarfi:Amfani da fasahar AlInGaP yana ba da ƙarfin haske mai ƙarfi daga ƙaramin yanki na guntu.
• Shirye-shiryen Masana'antu:Fakitin tef-da-reel da dacewar tsarin gudanar suna ba da damar haɗawa ta atomatik mai inganci, yana rage lokacin samarwa da farashi.
• Amincewa:An ƙididdige na'urar don aiki a cikin kewayon zafin jiki mai faɗi daga -55°C zuwa +85°C, yana tallafawa aikace-aikace a yanayi daban-daban.

2. Bincike Mai zurfi na Ma'auni na Fasaha

Duk ƙayyadaddun bayanai an ayyana su a zafin yanayi (Ta) na 25°C sai dai idan an faɗi akasin haka. Fahimtar waɗannan ma'auni yana da mahimmanci don ƙira na'urar da aka dogara da kuma tabbatar da aiki na dogon lokaci.

2.1 Madaidaicin Ma'auni na Cikakke

Waɗannan ma'auni suna ayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na na'urar na iya faruwa. Ba a ba da garantin aiki a ƙarƙashin ko a waɗannan iyakokin kuma ya kamata a guje su don aiki mai aminci.

• Rushewar Wutar Lantarki (Pd):75 mW. Wannan shine iyakar ƙarfin wutar lantarki da aka yarda a cikin na'urar.
• Ci gaba da Gaba na Gaba (IF):30 mA. Wannan shine halin DC da za'a iya amfani da shi akai-akai.
• Kololuwar Halin Gaba:80 mA. An yarda da shi kawai a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun jini 0.1ms).
• Matsakaicin Ragewa:0.4 mA/°C. Ga kowane digiri Celsius sama da 25°C, dole ne a rage matsakaicin halin gaba mai ci gaba da aka yarda da wannan adadin.
• Ƙarfin Lantarki na Baya (VR):5 V. Wuce wannan ƙarfin lantarki a cikin karkatar da baya na iya haifar da rushewar haɗin gwiwa.
• Kewayon Zafin Jiki na Aiki & Ajiya:-55°C zuwa +85°C.

2.2 Halayen Lantarki & Na Gani

Waɗannan su ne ma'auni na aiki na yau da kullun a ƙarƙashin yanayin aiki na al'ada.

• Ƙarfin Hasken Hasken (Iv):30.0 mcd (Ƙarami), 50.0 mcd (Typ) a halin gaba (IF) na 20 mA. Ana auna ƙarfin ta amfani da firikwensin da aka tace don dacewa da lanƙwan amsawar ido na CIE photopic.
• Kusurwar Dubawa (2θ½):Digiri 130 (Typ). Wannan faɗaɗɗen kusurwar dubawa siffa ce ta ƙirar duban gefe, yana nuna an fitar da haske a kan faɗaɗɗen jirgin sama na gefe.
• Matsakaicin Tsawon Tsawon Tsawon (λPeak):632 nm (Typ). Tsawon tsawon raƙuman ruwa inda fitowar bakan ya fi ƙarfi.
• Matsakaicin Tsawon Tsawon (λd):624 nm (Typ). Wannan shine tsawon raƙuman ruwa guda ɗaya da idon ɗan adam zai gane, wanda aka samo daga daidaitattun maki launi na CIE, yana ayyana ma'anar launin ja.
• Rabin Faɗin Layin Bakan (Δλ):20 nm (Typ). Faɗin bakan da aka fitar a rabin ƙarfin kololuwa, yana nuna tsaftar launi.
• Ƙarfin Lantarki na Gaba (VF):2.0 V (Ƙarami), 2.4 V (Typ) a IF=20mA. Wannan ma'auni yana da mahimmanci don ƙididdige ƙimar resistor na jerin da ƙirar wutar lantarki.
• Halin Baya (IR):100 µA (Matsakaici) a VR=5V.
• Ƙarfin Ƙarfi (C):40 pF (Typ) a VF=0V, f=1MHz. Yana da alaƙa da aikace-aikacen sauyawa mai girma.

3. Bincike na Lanƙwan Aiki

Yayin da ba a ba da takamaiman bayanan hoto a cikin rubutun da aka cire ba, lanƙwasa na yau da kullun don irin wannan na'urar zai zama dole don binciken ƙira. Insiyoyi za su yi tsammanin sake duba alaƙar masu zuwa, waɗanda su ne ma'auni don siffanta LED:

3.1 Lanƙwan Halin Yanzu vs. Ƙarfin Lantarki (I-V)

Wannan lanƙwasa yana nuna alaƙar maɗaukaki tsakanin ƙarfin lantarki na gaba da halin yanzu. Ƙarfin lantarki na gwiwa (inda halin yanzu ya fara tashi sosai) don LEDs na AlInGaP yawanci yana kusa da 1.8-2.0V. Lanƙwasa yana da mahimmanci don tantance juriyar motsi na LED da kuma ƙirar daidaitaccen na'urar iyakance halin yanzu.

3.2 Ƙarfin Hasken Hasken vs. Halin Gaba

Wannan makircin yawanci yana nuna alaƙar kusa da layi tsakanin halin gaba da fitar da haske a cikin kewayon aikin da aka ba da shawarar. Yana taimaka wa masu ƙira su zaɓi halin yanzu na tuƙi don cimma matakin haske da ake so yayin da suke tsayawa a cikin iyakokin zafi.

3.3 Dogaro da Zafin Jiki

Mahimman ma'auni kamar ƙarfin lantarki na gaba da ƙarfin haske suna bambanta da zafin haɗin gwiwa. VF yawanci yana raguwa tare da ƙara zafin jiki (ma'auni mara kyau na zafin jiki), yayin da ƙarfin haske gabaɗaya yana raguwa. Fahimtar waɗannan sauye-sauye yana da mahimmanci don ƙira da ke aiki a cikin kewayon zafin jiki mai faɗi ko a matakan wutar lantarki masu girma.

3.4 Rarraba Bakan

Jadawali na ƙarfin dangi da tsawon raƙuman ruwa zai nuna kololuwa a kusa da 632nm tare da rabin faɗi na 20nm, yana tabbatar da fitar da ja mai launi ɗaya na guntu na AlInGaP.

4. Bayanin Injiniya & Fakitin

4.1 Girmamin Na'ura

LED ya yi daidai da daidaitaccen tsarin fakitin EIA. Muhimman girmansu sun haɗa da tsawon jiki, faɗi, tsayi, da sanya alamar cathode (yawanci notch ko alama mai kore akan tef). An ba da ainihin girmansu na milimita da iyakoki (±0.1mm) a cikin zanen fakitin da ke cikin takardar bayani.

4.2 Gano Polarity

Daidaitaccen alkibla wajibi ne. Yawanci ana yiwa cathode alama a jikin na'urar ko kuma ana nuna shi ta wani takamaiman fasali a cikin aljihun tef. Kuskuren alkibla zai hana LED haskakawa kuma yin amfani da karkatar da baya na iya lalata shi.

4.3 Tsarin Kafet ɗin Gyarawa da aka Ba da Shawara

An ba da shafin ƙafa da aka ba da shawarar don ƙasashen PCB don tabbatar da samuwar haɗin gudanar daidai, kwanciyar hankali na injiniya, da taimakon zafi yayin gudanar. Bin wannan shimfidar yana rage ginin kabari da sauran lahani na haɗawa.

4.4 Ƙayyadaddun Tef da Reel

Ana ba da sashi a cikin tef mai ɗaukar hoto tare da murfin kariya. Muhimman ƙayyadaddun bayanai sun haɗa da: faɗin tef 8mm, diamita na reel inci 7, da guda 4000 a kowace reel. Fakitin yana bin ka'idojin ANSI/EIA 481-1-A-1994. Ana ba da izinin mafi yawan abubuwan da suka ɓace guda biyu a jere (aljihuna fanko) a kowace reel.

5. Jagororin Gyarawa & Haɗawa

5.1 Yanayin Gyarawa na Gudanar

An ƙididdige LED don hanyoyin gyarawa na gama-gari. Takardar bayani ta ƙayyade matsakaicin yanayin bayyanawa don hana lalacewar zafi ga fakitin filastik da haɗin waya:

• Infrared (IR) / Gyarawar Igwa:Matsakaicin zafin jiki na 260°C na matsakaicin dakika 5.
• Gyarawar Matakin Tururi:215°C na matsakaicin mintuna 3.

An ba da shawarar cikakken bayanin gudanar (dumama, jiƙa, gudanar, sanyaya) tare da ƙuntatawa na lokaci da zafin jiki don tabbatar da haɗin gudanar da aka dogara ba tare da lalata LED ba.

5.2 Tsaftacewa

Tsaftacewa bayan gyarawa yana buƙatar taka tsantsan. Dole ne a yi amfani da takamaiman sinadarai kawai. Takardar bayani ta ba da shawarar a sarari:

• Nitsar cikin barasa na ethyl ko isopropyl a daidaitaccen zafin ɗaki.
• Lokacin nitsawa ya kamata ya zama ƙasa da minti ɗaya.
• Dole ne a guji ruwayen sinadarai da ba a bayyana ba saboda suna iya lalata ruwan tabarau na epoxy na LED ko fakitin.

5.3 Ajiya & Sarrafawa

Ya kamata a adana na'urori a cikin ainihin jakunkun su na sirri masu hana danshi tare da busassun abu a cikin yanayi mai sarrafawa (a cikin kewayon -55°C zuwa +85°C). Bayyanawa ga yawan danshi kafin gyarawa na iya haifar da "popcorning" yayin gudanar. Ya kamata a kiyaye matakan kariya na ESD (fitar da wutar lantarki) na yau da kullun yayin sarrafawa.

6. Bayanan Aikace-aikace & Abubuwan Ƙira

6.1 Babban Aikace-aikace: Hasken Baya na LCD

Ƙirar duban gefe ta dace da raka'o'in hasken baya mai hasken gefe. Ana sanya LEDs da yawa tare da gefe ɗaya ko fiye na farantin jagorar haske (LGP). Hasken daga LEDs ana shigar da shi a gefen LGP, inda yake yaɗuwa ta hanyar cikakken tunani na ciki kuma ana fitar da shi zuwa sama zuwa allon LCD ta hanyar fasalin saman da aka buga ko aka ƙera, yana haifar da tushen haske na yanki mai daidaito.

6.2 Ƙirar Da'irar Tuƙi

LEDs na'urori ne masu tuƙi na halin yanzu. Resistor mai iyakance halin yanzu na jerin shine mafi sauƙin hanyar tuƙi. Ana ƙididdige ƙimar resistor (R) ta amfani da Dokar Ohm: R = (Vcc - VF) / IF, inda Vcc shine ƙarfin wutar lantarki, VF shine ƙarfin lantarki na gaba na LED (yi amfani da ƙima ta yau da kullun ko matsakaici don aminci), kuma IF shine halin gaba da ake so (misali, 20mA). Don daidaitaccen haske a cikin LEDs da yawa ko bambancin zafin jiki, ana ba da shawarar da'irar tuƙi mai tsayayye.

6.3 Gudanar da Zafin Jiki

Ko da yake rushewar wutar lantarki yana da ƙasa (75mW matsakaici), ingantaccen sarrafa zafin jiki yana da mahimmanci don tsawon rai da kwanciyar hankali na fitar da haske. PCB yana aiki azaman mai sanyaya zafi. Tabbatar da isasshen yanki na tagulla da aka haɗa zuwa kafet ɗin zafi na LED (idan akwai) ko ƙasashen gudanar don fitar da zafi daga haɗin gwiwa. Ku bi da lanƙwan rage halin yanzu sama da 25°C yanayi.

6.4 Haɗin Gani

Don aikace-aikacen hasken baya, daidaitaccen daidaitawar injiniya da nisa tsakanin saman fitar da LED da gefen farantin jagorar haske suna da mahimmanci don haɓaka ingancin haɗawa da rage asarar gani. Faɗaɗɗen kusurwar dubawa na digiri 130 yana taimakawa a cikin wannan haɗin.

7. Kwatancen Fasaha & Bambance-bambance

Idan aka kwatanta da sauran fasahohin LED don fitar da ja:

• vs. GaAsP na Al'ada:AlInGaP yana ba da ingantaccen inganci mai haske da ingantaccen kwanciyar hankali na zafin jiki, yana haifar da hasken ja mai haske da madaidaici.
• vs. AllnGaP LEDs na Duban Sama:Babban abin da ya bambanta shine tsarin katako. Wannan bambance-bambancen duban gefe yana fitar da haske a layi daya da jirgin sama na PCB, yayin da daidaitattun LEDs ke fitar da haske a kai tsaye. Wannan ya sa bai dace da nuni kai tsaye ba amma ya fi dacewa da hasken gefe.
• vs. Fararen LEDs don Hasken Baya:LEDs ja masu launi ɗaya kamar wannan ana amfani da su sau da yawa a cikin tsarin hasken baya mai launi da yawa (RGB) don ƙirƙirar gamut mai faɗi, ko a cikin nunin launi ɗaya da ke buƙatar takamaiman hasken ja.

8. Tambayoyin da ake yawan yi (FAQ)

8.1 Shin zan iya tuƙa wannan LED kai tsaye daga fitarwar dabaru na 5V ko 3.3V?

A'a. Dole ne ku yi amfani da resistor na jerin ko direban halin yanzu mai tsayayye don iyakance halin yanzu zuwa matsakaicin da aka ƙayyade (30mA ci gaba). Haɗa shi kai tsaye zuwa tushen ƙarfin lantarki zai haifar da wuce gona da iri na halin yanzu, mai yuwuwar lalata LED.

8.2 Menene bambanci tsakanin tsawon raƙuman ruwa na kololuwa da tsawon raƙuman ruwa mai rinjaye?

Tsawon raƙuman ruwa na kololuwa (λPeak) shine tsawon raƙuman ruwa na zahiri inda ƙarfin bakan ya fi girma. Tsawon raƙuman ruwa mai rinjaye (λd) ma'auni ne na fahimta wanda aka samo daga kimiyyar launi (zanen CIE) wanda ke wakiltar tsawon raƙuman ruwa guda ɗaya wanda idon ɗan adam zai gane kamar yadda ya dace da launin LED. Don LEDs masu launi ɗaya, sau da yawa suna kusa amma ba iri ɗaya ba.

8.3 Nawa ne LEDs da zan iya haɗawa a jere?

Lambar ta dogara da ƙarfin wutar lantarki (Vcc) da ƙarfin lantarki na gaba (VF) na kowane LED. Jimlar VF na duk LEDs a cikin kirtani dole ne ya zama ƙasa da Vcc, tare da isasshen sarari don abun iyakance halin yanzu (resistor ko mai sarrafawa). Misali, tare da wadata na 12V da VF=2.4V, a ka'idar zaka iya haɗa LEDs 4 a jere (4 * 2.4V = 9.6V), ya bar 2.4V ga resistor mai iyakance halin yanzu.

8.4 Shin wannan LED ya dace da aikace-aikacen mota?

Kewayon zafin jiki na aiki (-55°C zuwa +85°C) ya ƙunshi buƙatun mota da yawa. Duk da haka, ainihin kayan aikin mota na mota yawanci suna buƙatar ƙarin cancanta don girgiza, danshi, da tsawaita rayuwa a ƙarƙashin yanayi masu tsauri. Wannan takardar bayani ba ta ƙayyade AEC-Q101 ko makamantan cancantar mota ba, don haka bazai dace da hasken mota mai mahimmanci ga aminci ko na waje ba tare da ƙarin tabbatarwa ba.

9. Nazarin Shari'ar Ƙira mai Aiki

Yanayi:Ƙirar mai nuna matsayi mai sauƙi don na'urar ɗaukar hoto wanda ke buƙatar hasken gefe na ƙaramar bututun haske na acrylic.

Ai watar:LTST-S220KEKT zaɓi ne mai kyau. An sanya shi akan babban PCB tare da saman fitar da shi daidai da gefen bututun haske na acrylic. An ƙididdige resistor na jerin don tsarin 3.3V: R = (3.3V - 2.4V) / 0.020A = 45 Ohms. An zaɓi resistor na yau da kullun na 47 Ohm, wanda ya haifar da halin gaba na kusan 19.1mA, cikin iyaka sosai. Faɗaɗɗen kusurwar dubawa yana tabbatar da ingantaccen haɗawa cikin bututun haske, yana ba da hasken ja mai haske, ko da a wurin fitowar mai nuni akan akwatin na'urar.

10. Gabatarwar Ka'idar Fasaha

LTST-S220KEKT ya dogara ne akan fasahar semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP). Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin p-n, ana shigar da electrons da ramuka cikin yankin aiki inda suke sake haɗuwa. A cikin AlInGaP, wannan taron sake haɗuwa da farko yana sakin makamashi a cikin nau'in photons (haske) a cikin bakan ja zuwa rawaya-orange, dangane da ainihin abun da ke ciki. Fakitin duban gefe ya ƙunshi ruwan tabarau na epoxy da aka ƙera wanda aka siffata don jujjuya da jagorantar hasken da aka fitar a gefe, a layi daya da jirgin sama na sanyawa, maimakon sama. An cimma wannan ta hanyar takamaiman lanƙwasa na ruwan tabarau da sanya guntu na semiconductor a cikin fakitin.

11. Trends & Ci gaban Masana'antu

Kasuwar LEDs masu fitar da gefe na ci gaba da haɓaka. Manyan abubuwan da suka shafi sun haɗa da:

• Ƙara Ingantaccen Aiki:Ci gaban kimiyyar kayan aiki na ci gaba da nufin haɓaka lumens kowace watt (inganci) don AlInGaP da sauran LEDs masu launi, rage amfani da wutar lantarki a cikin raka'o'in hasken baya.
• Ƙananan Ƙirar:Akwai tuƙi akai-akai don ƙananan girman fakitin (misali, 0603, 0402 metric) don ba da damar nunin bakin ciki da ƙarin ƙananan na'urori.
• Maganganun Haɗin Kai:Trends suna matsawa zuwa ga ƙungiyoyin LED da yawa ko "sandunan haske" waɗanda ke haɗa launuka da yawa (RGB) ko fararen LEDs tare da direbobi da na'urori a cikin raka'a guda ɗaya da aka riga aka haɗa, yana sauƙaƙa ƙira da haɗawa don hasken baya.
• Madadin Fasahohi:Don farin hasken baya, blue LEDs tare da jujjuyawar phosphor sun kasance masu rinjaye. Duk da haka, don nunin launi, kai tsaye fitar da ja, kore, da shuɗi (RGB) LEDs ko ƙananan/ƙananan tsararrun LED suna samun ƙarfi don babban gamut ɗin launi da ikon duhu na gida a cikin manyan nunin.