LTST-C194TGKT SMD LED Bayanin Fasaha - Tsayin 0.30mm - 3.2V - 76mW - Kore - Takardar Fasaha ta Hausa

1. Bayanin Samfur

LTST-C194TGKT na'urar da ake hawa a saman (SMD) ce ta LED chip da aka tsara don aikace-aikacen lantarki na zamani, waɗanda ke da ƙarancin sarari. Kayan aiki ne mai siriri sosai tare da tsayin kashi 0.30 mm kawai, wanda ya sa ya dace da na'urori siriri kamar wayoyin hannu, kwamfutocin hannu, allon siriri, da fasahar sawa. Na'urar tana fitar da haske kore ta amfani da kayan semiconductor na InGaN (Indium Gallium Nitride) da ke cikin fakitin ruwa mai tsabta. Ta bi ka'idojin RoHS (Ƙuntata Abubuwa Masu Haɗari) kuma an rarraba ta a matsayin samfurin kore. Ana ba da LED a cikin tef ɗin daidaitaccen masana'antu mai nisan milimita 8 akan reels masu diamita inci 7, waɗanda suka dace da kayan aikin sarrafawa da sauri da tsarin haɗa guntun infrared (IR), wanda ke sauƙaƙe samarwa mai yawa.

2. Bincike Mai Zurfi na Sigogi na Fasaha

2.1 Matsakaicin Matsakaicin Matsakaici

Waɗannan ƙididdiga suna ayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na na'urar na iya faruwa. Ba a ba da garantin aiki a ƙarƙashin waɗannan sharuɗɗan ba. Manyan iyakoki sun haɗa da matsakaicin ɓarnar wutar lantarki na 76 mW, halin yanzu na gaba na DC na 20 mA, da matsakaicin halin yanzu na gaba na 100 mA a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun 0.1ms). Na'urar na iya jure ƙarfin juyawa na 5V, amma an haramta ci gaba da aiki a ƙarƙashin juzu'i. Kewayon zafin aiki daga -20°C zuwa +80°C, tare da faɗin ajiyar daga -30°C zuwa +100°C. An ƙididdige kayan aikin don haɗa guntun infrared a matsakaicin zafin jiki na 260°C na matsakaicin dakika 10.

2.2 Halayen Lantarki da Na Gani

An ƙayyade waɗannan sigogi a zafin yanayi (Ta) na 25°C da daidaitaccen gwajin halin yanzu (IF) na 20 mA, suna ba da bayanan aikin tushe. Ƙarfin haske (Iv) yana da ƙimar al'ada na 450 millicandelas (mcd) tare da mafi ƙarancin 71 mcd, yana nuna fitarwa mai haske. Yana da faɗin kusurwar kallo (2θ1/2) na digiri 130, yana ba da haske mai faɗi, daidai. Babban tsayin raƙuman ruwa (λd) shine 525 nm, yana ayyana fahimtar launin kore, yayin da mafi girman tsayin raƙuman fitarwa (λp) shine 530 nm. Faɗin bandeji na gani (Δλ) shine 35 nm. Ƙarfin lantarki na gaba (VF) yawanci yana auna 3.2V, tare da kewayon daga 2.8V zuwa 3.6V. Juyawar halin yanzu (IR) shine matsakaicin 10 μA a cikin cikakken juzu'i na 5V.

3. Bayanin Tsarin Binning

Don tabbatar da daidaito a cikin samarwa, ana rarraba LED zuwa kwandon aiki. LTST-C194TGKT yana amfani da tsarin binning mai girma uku wanda ya ƙunshi ƙarfin lantarki na gaba (Vf), ƙarfin haske (Iv), da babban tsayin raƙuman ruwa (λd). Wannan yana ba masu ƙira damar zaɓar abubuwan da suka dace da takamaiman kewayon su da buƙatun haske/launi.

3.1 Binning Ƙarfin Lantarki na Gaba

Ana binning ƙarfin lantarki na gaba a matakan 0.2V. Lambobin bin D7 (2.80-3.00V), D8 (3.00-3.20V), D9 (3.20-3.40V), da D10 (3.40-3.60V) suna samuwa. Ana amfani da jurewar ±0.1V a cikin kowane kwandon. Zaɓin LED daga kwandon Vf ɗaya yana taimakawa wajen kiyaye rarraba halin yanzu lokacin da aka haɗa LED da yawa a layi daya.

3.2 Binning Ƙarfin Hasken Hasken

Kwandon ƙarfin haske yana ba da kewayon matakan haske. Kwandon sune Q (71.0-112.0 mcd), R (112.0-180.0 mcd), S (180.0-280.0 mcd), da T (280.0-450.0 mcd). Jurewar ±15% ya shafi kowane kwandon. Wannan yana ba da damar zaɓi mai tsada inda matsakaicin haske ba mahimmanci ba, ko don siffofin samfurin matakin.

3.3 Binning Babban Tsayin Raƙuman Ruwa

Kwandon tsayin raƙuman ruwa yana tabbatar da daidaiton launi. Kwandon da ake samu sune AP (520.0-525.0 nm), AQ (525.0-530.0 nm), da AR (530.0-535.0 nm), tare da ƙarancin jurewar ±1 nm a kowane kwandon. Wannan yana da mahimmanci ga aikace-aikacen da ake buƙatar daidaitawar launi, kamar a cikin alamomin launi da yawa ko hasken baya na nuni.

4. Bincike na Lanƙwasa Aiki

Yayin da aka ambaci takamaiman lanƙwasa a cikin takardar bayanai (misali, Hoto na 1 don rarraba gani, Hoto na 6 don kusurwar kallo), bayanan da aka bayar suna ba da damar bincika mahimman alaƙa. An ƙayyade ƙarfin lantarki na gaba a halin yanzu guda (20mA). A aikace, Vf yana da alaƙar logarithmic tare da halin yanzu na gaba (If) da ƙimar zafin jiki mara kyau, ma'ana Vf yana raguwa yayin da zafin haɗin yake ƙaruwa. Ƙarfin haske shima ya dogara da zafin jiki, yawanci yana raguwa yayin da zafin jiki ya tashi. Faɗin kusurwar kallo na digiri 130 yana nuna tsarin radiation na Lambertian ko kusa da Lambertian, inda ƙarfin haske ya kusan daidai da cosine na kusurwar kallo.

5. Bayanin Injiniya da Marufi

5.1 Girman Fakitin

LED ya yi daidai da daidaitattun fakitin EIA (Ƙungiyar Masana'antu ta Lantarki). Siffar da ke bayyana ita ce tsayinta mai ƙarancin ƙima na 0.30 mm. Cikakkun zane-zane masu girma suna ƙayyade tsayi, faɗi, tazarar jagora, da sauran mahimman jurewar injiniya, yawanci tare da daidaitaccen jurewar ±0.10 mm sai dai idan an lura da haka. Waɗannan girma suna da mahimmanci don ƙirar sawun PCB (Allon Kewayon da aka Buga) da tabbatar da ingantaccen sanyawa ta hanyar injiniya mai sarrafa kansa.

5.2 Ƙirar Gindin Solder

Takardar bayanai ta haɗa da shawarwarin girman tsarin ƙasa na gindin solder. Yin bin waɗannan shawarwari yana da mahimmanci don cimma haɗin gwiwar solder mai dogaro yayin reflow. Babban bayanin kula shine shawarar don matsakaicin kauri na stencil na 0.10mm don sarrafa ƙarar man gami da hana gado ko kabari na ƙaramin kayan aiki.

5.3 Gano Polarity

Kamar yawancin LED, wannan na'urar tana da hankali ga polarity. Ana yiwa cathode alama, sau da yawa ta hanyar tsaga, kore kore, ko siffar jagora daban. Dole ne a tabbatar da daidaitaccen yanayin daidai da zanen fakitin don tabbatar da ingantaccen aikin kewayawa da hana lalacewa daga juzu'i.

6. Jagororin Haɗawa da Haɗawa

6.1 Bayanin Haɗin Reflow

An ba da shawarar bayanin infrared (IR) reflow don hanyoyin haɗa guntun maras gubar (Pb-free). Wannan bayanin ya bi ka'idojin JEDEC. Ya haɗa da mahimman sigogi: matakin pre-heat (yawanci 150-200°C har zuwa dakika 120), haɓakawa, yankin zafin jiki (matsakaicin 260°C), da lokacin da ya wuce ruwa (zafin jiki inda solder ke narkewa). Kayan aikin ba dole ba ne a fallasa shi ga matsakaicin zafin jiki fiye da dakika 10. Wannan bayanin yana tabbatar da samuwar haɗin gwiwar solder ba tare da sanya fakitin LED ga matsanancin damuwa na zafi ba.

6.2 Sarrafawa da Ajiya

LED yana da hankali ga zubar da wutar lantarki (ESD). Matakan kulawa kamar amfani da bel ɗin wuyan hannu, tabarma mai hana tashin hankali, da kwantena masu ɗaukar wutar lantarki wajibi ne. Don ajiya, buhunan shinge na danshi da ba a buɗe ba (tare da bushewa) yakamata a kiyaye su a ≤30°C da ≤90% RH, tare da rayuwar shinge na shekara guda. Da zarar an buɗe, yakamata a adana abubuwan a ≤30°C da ≤60% RH. Idan an fallasa su ga yanayin yanayi fiye da sa'o'i 672 (kwanaki 28), ana ba da shawarar gasa a kusan 60°C na aƙalla sa'o'i 20 kafin haɗawa don cire danshin da aka ɗauka da hana "popcorning" yayin reflow.

6.3 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan solder, kawai yakamata a yi amfani da kaushi da aka ƙayyade. Takardar bayanai ta ba da shawarar nutsar da cikin barasa na ethyl ko isopropyl a yanayin zafi na yau da kullun na ƙasa da minti ɗaya. Masu tsabtace sinadarai da ba a bayyana ba na iya lalata ruwan tabarau na filastik ko kayan fakitin.

7. Bayanin Marufi da Oda

Daidaitaccen marufi shine tef ɗin mai ɗaukar hoto mai faɗin milimita 8 da aka yi wa lalata akan reels masu diamita inci 7 (178mm). Kowane reel yana ƙunshe da guda 5000. Ana rufe ramukan da ba kowa a cikin tef ɗin tare da tef ɗin murfi. Marufin ya bi ƙa'idodin ANSI/EIA 481-1-A-1994. Don ci gaba da samarwa, matsakaicin adadin abubuwan da ba a samu ba a jere a cikin tef ɗin shine biyu. Mafi ƙarancin adadin oda don sauran reels shine guda 500. Lambar sashi LTST-C194TGKT tana bin takamaiman tsarin lamba inda abubuwa sukan nuna jerin, fakitin, launi, da lambobin bin.

8. Shawarwarin Aikace-aikace

8.1 Yanayin Aikace-aikace na Al'ada

Wannan LED kore mai siriri ya dace da alamomin matsayi, hasken baya don maɓalli ko alamomi, da hasken kayan ado a cikin kayan lantarki na mabukaci inda tsayi ya zama ƙuntatawa mai mahimmanci. Misalai sun haɗa da fitilun nuni a cikin wayoyin hannu, kwamfutocin hannu, kwamfutocin tafi-da-gidanka, ultrabooks, na'urorin sawa (agogon waya, makada na motsa jiki), da allunan sarrafawa siriri. Dacewarta da sanyawa ta atomatik da haɗa guntun reflow ya sa ya zama cikakke don samarwa mai yawa.

8.2 Abubuwan Ƙira

Ƙuntatawa na Halin Yanzu:Koyaushe ana buƙatar resistor mai iyakancewa na waje lokacin tuka LED daga tushen wutar lantarki mafi girma fiye da ƙarfinsa na gaba. Ana ƙididdige ƙimar resistor ta amfani da Dokar Ohm: R = (Vcc - Vf) / If, inda Vf shine ƙarfin lantarki na gaba (yi amfani da ƙimar matsakaici don ƙirar mafi munin yanayi), If shine halin yanzu na gaba da ake so (≤20 mA DC), kuma Vcc shine ƙarfin wutar lantarki.
Gudanar da Zafi:Ko da yake ɓarnar wutar lantarki ƙarami ne, tabbatar da isasshen yanki na tagulla na PCB ko ramukan zafi na iya taimakawa wajen watsar da zafi, musamman lokacin aiki a manyan yanayin yanayi ko a matsakaicin halin yanzu, ta haka kuma kiyaye fitarwa mai haske da tsawon rai.
Kariya ta ESD:A cikin yanayin da ke da saurin ESD, yi la'akari da ƙara diodes na murƙushe wutar lantarki na wucin gadi (TVS) ko wasu kewayen kariya akan layukan LED.

9. Kwatancen Fasaha da Bambance-bambance

Babban abin da ya bambanta LTST-C194TGKT shine tsayinsa na 0.30mm, wanda ya fi yawancin daidaitattun SMD LED siriri (misali, fakitin 0603 ko 0805 waɗanda galibi suna tsayin 0.6-0.8mm). Wannan yana ba da damar ƙira a cikin aikace-aikacen da tsayin z ya iyakance sosai. Idan aka kwatanta da tsofaffin LED na rami, yana ba da tanadin sarari mai yawa kuma yana ba da damar haɗawa ta atomatik. Amfani da fasahar InGaN yana ba da inganci da fitar da haske kore mai haske. Biyansa ga bayanan reflow maras gubar ya daidaita shi da ƙa'idodin muhalli na zamani da hanyoyin masana'antu.

10. Tambayoyin da ake yawan yi (FAQ)

Q: Zan iya tuka wannan LED a 30 mA don ƙarin haske?
A: A'a. Matsakaicin matsakaicin halin yanzu na gaba na DC shine 20 mA. Wucewa wannan ƙimar na iya haifar da lalacewa maras gyara saboda zafi da haɓakar lalacewar haɗin semiconductor.
Q: Menene bambanci tsakanin babban tsayin raƙuman ruwa da mafi girman tsayin raƙuman ruwa?
A: Babban tsayin raƙuman ruwa (λd) shine tsayin raƙuman ruwa guda ɗaya wanda idon ɗan adam ya gane wanda ya dace da launin LED, wanda aka samo daga zanen launi na CIE. Mafi girman tsayin raƙuman ruwa (λp) shine ainihin tsayin raƙuman ruwa wanda mafi girman ƙarfin gani ya fi girma. Sau da yawa sun bambanta kaɗan.
Q: Zan iya amfani da haɗa guntun hannu?
A: Haɗa guntun hannu tare da ƙarfe yana yiwuwa amma yana buƙatar kulawa sosai. Shawarar ita ce matsakaicin zafin ƙarshen ƙarfe na 300°C da lokacin haɗa guntun bai wuce dakika 3 ba kowace jagora, sau ɗaya kawai. Haɗa guntun reflow shine hanyar da aka fi so kuma mafi aminci.
Q: Ta yaya zan fassara lambar bin a cikin lambar sashi?
A: Maɗaukaki "TGKT" mai yiwuwa yana ƙunshe da bayanan lamba don takamaiman ƙarfin lantarki na gaba (T?), ƙarfin haske (G?), da kwandon babban tsayin raƙuman ruwa (K?). Dole ne mutum ya kwatanta cikakken jerin bin tare da bayanin oda don zaɓar ainihin matakin aikin da ake buƙata.

11. Ƙirar Aiki da Yanayin Amfani

Yanayi: Ƙirar alamar matsayi don agogon waya.
Ƙirar tana buƙatar alamar caji kore. Tsayin ciki na agogon waya yana da iyaka sosai. An zaɓi LTST-C194TGKT saboda bayaninsa na 0.30mm. Mai zane ya zaɓi bin D8 don Vf (3.0-3.2V) da bin T don ƙarfin haske (280-450 mcd) don tabbatar da ganuwa. Ana tuka LED daga layin dogo na 3.3V na agogon. Ta amfani da matsakaicin Vf na 3.6V don ƙirar ra'ayin mazan jiya, an ƙididdige resistor mai iyakancewa: R = (3.3V - 3.6V) / 0.02A = -15 Ohms. Wannan ƙimar mara kyau tana nuna cewa tare da mafi munin yanayi Vf ya fi wadata, LED na iya kunna ba. Saboda haka, mai zane yana amfani da na al'ada Vf na 3.2V: R = (3.3V - 3.2V) / 0.02A = 5 Ohms. An zaɓi daidaitaccen resistor na 5.1Ω, wanda ya haifar da halin yanzu na ~19.6 mA. Tsarin PCB yana amfani da shawarwarin girman gindin solder kuma ya haɗa da ƙaramin haɗin taimakon zafi zuwa jirgin ƙasa.

12. Gabatarwar Fasaha

LTST-C194TGKT ya dogara ne akan fasahar semiconductor na InGaN (Indium Gallium Nitride). InGaN wani fili ne na semiconductor wanda za a iya daidaita ƙarfin bandgap ta hanyar bambanta rabon indium zuwa gallium. Don LED kore, ana amfani da takamaiman abun ciki na indium don ƙirƙirar bandgap wanda ya dace da fitar da photons a cikin kewayon tsayin raƙuman ruwa kore (kusan 525 nm). Lokacin da aka yi amfani da ƙarfin lantarki na gaba, electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki na semiconductor, suna sakin makamashi a cikin nau'in haske - wani tsari da ake kira electroluminescence. An tsara ruwan tabarau na ruwa don fitar da wannan haske daga cikin guntuwar semiconductor yadda ya kamata tare da ƙarancin sha, yayin da kuma yana ba da kariyar injiniya da muhalli.

13. Trends na Fasaha

Trend a cikin SMD LED don kayan lantarki na mabukaci yana ci gaba zuwa ƙananan ƙira, mafi inganci, da haɗin kai mafi girma. Tsayin fakitin yana raguwa ƙari don ba da damar samfuran ƙarshe masu siriri. Ingantattun inganci (ƙarin lumens kowace watt) yana rage amfani da wutar lantarki, wanda ke da mahimmanci ga na'urorin da ake amfani da baturi. Akwai kuma wani yanayi zuwa ƙarin sarrafa launi daidai da ƙaramin binning don biyan buƙatun nunin inganci da daidaitattun tsararrun LED da yawa. Bugu da ƙari, haɗa kayan lantarki na sarrafawa (kamar direbobi na yau da kullun) kai tsaye cikin fakitin LED yana zama gama gari, yana sauƙaƙa ƙirar kewayawa ga mai amfani na ƙarshe. Kimiyyar kayan da ke ƙasa tana ci gaba da ci gaba, tare da ci gaba da bincike don inganta ingancin LED kore na InGaN, wanda a tarihi ya kasance ƙasa da na LED shuɗi.