Bayanin Fasaha na LED LTST-C170KEKT - AlInGaP Ja - Kallon 130° - 1.6-2.4V - 25mA - Takardun Fasaha na Hausa

1. Bayyane Game da Samfur

LTST-C170KEKT wata LED ce mai hawa a saman (SMD) wacce aka tsara don haɗa allon da'ira (PCB) ta atomatik. Tana cikin dangin kayan aikin da aka ƙera don aikace-aikacen da ke da ƙarancin sarari inda ake buƙatar nuni mai aminci da haske mai ƙarfi. Na'urar tana amfani da kayan semiconductor na Aluminum Indium Gallium Phosphide (AlInGaP) don samar da fitar haske ja mai inganci.

1.1 Fa'idodi na Asali da Kasuwar da Ake Nufi

Wannan LED tana ba da fa'idodi masu mahimmanci da yawa don masana'antar lantarki ta zamani. Fitowarta mai ƙarfi tana tabbatar da kyakkyawan gani ko da a cikin wuraren da aka haskaka. Kunshin ya bi ka'idodin EIA, yana tabbatar da dacewa da kayan aikin ɗauka da sanyawa da yawa. Bugu da ƙari, an tsara shi don jure tsarin gyaɗa na infrared (IR), yana sa ya dace da layukan samarwa masu yawa. Kasuwowin da ake nufi sun haɗa da kayan aikin sadarwa (kamar wayoyin salula da maras igiya), na'urori masu sarrafa ofis (kwamfutocin tebur, tsarin hanyoyin sadarwa), kayan amfani na gida, da alamun cikin gida daban-daban ko aikace-aikacen nuni. Dacewarta don hasken baya na maɓalli da ƙananan nuni yana nuna yadda take da amfani.

2. Ma'auni na Fasaha: Fassarar Maƙasudi Mai zurfi

Aikin LTST-C170KEKT an ayyana shi ta hanyar saitin ma'auni na lantarki, na gani, da na zafi da aka auna a ƙarƙashin daidaitattun yanayi (Ta=25°C).

2.1 Halayen Hoto da na Gani

Ƙarfin haske (Iv) ma'auni ne mai mahimmanci, yana ƙayyade adadin hasken da LED ke fitarwa. Ga wannan na'urar, ƙarfin zai iya kasancewa daga mafi ƙarancin 11.2 millicandelas (mcd) zuwa mafi girma na 180.0 mcd lokacin da aka sarrafa shi da ƙarfin lantarki na gaba (IF) na 20mA. Wannan faɗin kewayon ana sarrafa shi ta hanyar tsarin binning. Kusurwar kallo, wanda aka ayyana shi azaman 2θ1/2, shine digiri 130. Wannan yana nuna tsarin haske mai faɗi sosai, yana sa LED ta zama mai dacewa don aikace-aikacen da ke buƙatar hasken yanki mai faɗi maimakon tabo mai mai da hankali. Tsawon raƙuman ruwa mai rinjaye (λd) yana tsakanin 617 nm zuwa 631 nm, wanda ke cikin ɓangaren ja na bakan gani. Tsawon raƙuman fitarwa mafi girma (λp) yawanci shine 632 nm.

2.2 Halayen Lantarki

Ƙarfin lantarki na gaba (VF) shine raguwar ƙarfin lantarki a kan LED lokacin aiki. Ga LTST-C170KEKT, VF yawanci yana tsakanin 1.6V zuwa 2.4V a IF=20mA. Wannan ƙaramin ƙarfin lantarki yana da amfani ga ƙirar da'ira mai ƙarancin wuta. Ƙarfin lantarki na baya (IR) an ƙayyade shi a mafi girman 10 μA lokacin da aka yi amfani da ƙarfin lantarki na baya (VR) na 5V, yana nuna halayen ɓarna na na'urar a ƙarƙashin ƙarancin lantarki na baya.

2.3 Matsakaicin Matsakaicin Matsakaici da La'akari da Zafi

Waɗannan ƙididdiga suna ayyana iyakokin da wanda lalacewa ta dindindin na iya faruwa bayan su. Matsakaicin ƙarfin lantarki na DC na gaba shine 25 mA. Matsakaicin ƙarfin lantarki na gaba na 60 mA yana yiwuwa a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun jini 0.1ms). Matsakaicin ɓarnawar wuta shine 62.5 mW. Na'urar na iya aiki a cikin kewayon zafin yanayi na -30°C zuwa +85°C kuma ana iya adana ta daga -40°C zuwa +85°C. Matsakaicin ƙarfin lantarki na baya da aka yarda shine 5V. Wuce kowane ɗayan waɗannan iyakokin na iya rage aiki ko haifar da gazawa.

3. Bayanin Tsarin Binning

Don tabbatar da daidaito a cikin samarwa mai yawa, ana rarraba LED zuwa kwandon aiki. LTST-C170KEKT tana amfani da tsarin binning wanda ya dogara da ƙarfin haske.

3.1 Binning na Ƙarfin Hasken

An rarraba ƙarfin zuwa rukuni da yawa, kowanne ana nuna shi da lambar harafi (L, M, N, P, Q, R). Kowane kwandon ya ƙunshi takamaiman kewayon ƙarfin haske da aka auna a cikin mcd a 20mA. Misali, kwandon 'L' ya ƙunshi 11.2 zuwa 18.0 mcd, yayin da kwandon 'R' ya ƙunshi 112.0 zuwa 180.0 mcd. Ana amfani da jurewar +/-15% ga kowane kwandon. Wannan tsarin yana ba masu ƙira damar zaɓar LED tare da matakin haske da ake buƙata don aikace-aikacen su na musamman, yana tabbatar da daidaiton gani lokacin da aka yi amfani da LED da yawa tare.

4. Bincike na Lanƙwasa Aiki

Yayin da aka ambaci takamaiman bayanan hoto a cikin takardun bayanai, madaidaicin lanƙwasa aiki don irin waɗannan na'urori suna ba da haske mai mahimmanci game da halayen da ke ƙarƙashin yanayi daban-daban.

4.1 Halayen Halin Yanzu da Ƙarfin Lantarki (I-V)

Lanƙwasa I-V yana kwatanta alaƙa tsakanin ƙarfin lantarki na gaba da ƙarfin lantarki na gaba. Ga LED na AlInGaP, wannan lanƙwasa yana nuna ƙarfin lantarki na kunna wanda ya biyo bayan yanki inda ƙarfin lantarki ke ƙaruwa da sauri tare da ƙaramin ƙarfin lantarki. Yin aiki da LED a cikin ƙayyadaddun kewayon ƙarfin lantarki (misali, 20mA) yana tabbatar da sauka a kan kwanciyar hankali, ingantaccen ɓangaren wannan lanƙwasa.

4.2 Ƙarfin Hasken da Ƙarfin Lantarki na Gaba

Wannan lanƙwasa yana nuna yadda fitowar haske ke ƙaruwa tare da ƙarfin lantarki. Gabaɗaya yana da layi a kan kewayon amma zai cika a manyan ƙarfin lantarki. Tuka LED a shawarar 20mA yana tabbatar da ingantaccen inganci da tsawon rai, yana guje wa damuwa na zafi da ke da alaƙa da aiki a matsakaicin matsakaicin ƙarfin lantarki.

4.3 Rarraba Bakan

Lanƙwasa fitarwa na bakan yana nuna ƙarfin hasken da aka fitar a kowane tsawon raƙuman ruwa. Ga LED ja AlInGaP, wannan lanƙwasa yawanci yana da ƙunci, yana tsakiya kusa da tsayin raƙuman ruwa mai rinjaye (617-631 nm), tare da rabin faɗin bakan (Δλ) na kusan 20 nm. Wannan yana ayyana tsaftar launin hasken da aka fitar.

5. Bayanin Injiniya da Kunshi

5.1 Girman Kunshi da Gano Polarity

LED tana cikin daidaitaccen kunshin SMD. Mahimman girma sun haɗa da tsayi, faɗi, da tsayi, tare da sanyawa da girman gindin gyaɗa. Ana gano cathode ta hanyar alamar gani akan kunshin, kamar tsaga, ɗigo, ko alamar kore. Daidaitaccen jagorar polarity yayin haɗawa yana da mahimmanci don aikin da ya dace.

5.2 Tsarin Gindin PCB da Aka Shawarta

An ba da shawarar tsarin ƙasa (sawu) don PCB don tabbatar da ingantaccen gyaɗa da kwanciyar hankali na injiniya. Wannan tsarin yana ayyana girman, siffa, da tazara na gindin tagulla wanda aka sanya LED a kai kafin gyaɗa sake karkatarwa. Yin bin wannan shawarar yana taimakawa hana kabari (ɗayan ƙarshen ya tashi) kuma yana tabbatar da kyakkyawan gyaɗa fillets.

6. Jagororin Gyaɗa da Haɗawa

6.1 Ma'auni na Gyaɗa Sake Karkatarwa na IR

Na'urar ta dace da hanyoyin gyaɗa marasa gubar (Pb-free). Matsakaicin zafin jiki da aka ba da shawarar shine 260°C, kuma lokacin da ya wuce wannan zafin jiki bai kamata ya wuce dakika 10 ba. An kuma ƙayyade matakin pre-heat (150-200°C). Waɗannan ma'auni sun dogara ne akan ka'idodin JEDEC don hana lalacewar zafi ga kunshin filastik na LED da mutuwar ciki.

6.2 Yanayin Ajiya da Sarrafawa

LED suna da hankali ga danshi da fitarwa na electrostatic (ESD). Lokacin da aka adana su a cikin ainihin jakar su mai hana danshi tare da bushewa, suna da tsawon rai. Da zarar an buɗe jakar, ana ƙididdige na'urori don takamaiman rayuwar bene (misali, sa'o'i 672 don MSL 2a) kafin dole ne a sake gyaɗa su ko a sake gasa su don cire danshin da aka sha, wanda zai iya haifar da "popcorning" yayin gyaɗa. Daidaitattun matakan kariya na ESD, kamar amfani da abin wuya na wuyan hannu da tashoshi na aiki, wajibi ne don hana lalacewa daga lantarki.

6.3 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan gyaɗa, kawai yakamata a yi amfani da kaushi da aka ƙayyade. Ana ba da shawarar nutsar da LED a cikin barasa na ethyl ko isopropyl a zafin daki na ƙasa da minti ɗaya. M ko sinadarai da ba a ƙayyade ba na iya lalata ruwan tabarau na epoxy ko kunshi.

7. Bayanin Kunshi da Oda

7.1 Ƙayyadaddun Kaset da Reel

Don haɗawa ta atomatik, ana samar da LED akan kaset ɗin mai ɗaukar kaya da aka lulluɓe akan reels masu diamita inci 7. Kowane reel yawanci yana ɗauke da guda 3000. Girman kaset, tazarar aljihu, da girman cibiyar reel sun yi daidai da ka'idodin masana'antu kamar ANSI/EIA 481, suna tabbatar da dacewa da kayan abinci na daidaitattun abinci.

8. Shawarwari na Aikace-aikace

8.1 Da'irori na Aikace-aikace na Yau da Kullun

LED na'urori ne masu sarrafa ƙarfin lantarki. Don daidaitaccen haske, musamman lokacin da aka yi amfani da LED da yawa a layi daya, ana ba da shawarar tuka kowane LED da nasa resistor mai iyakance ƙarfin lantarki ko amfani da da'irar direba mai ƙarfin lantarki. Haɗa LED kai tsaye a layi daya zuwa tushen ƙarfin lantarki guda ɗaya tare da resistor ɗaya ba a ba da shawarar ba saboda bambance-bambance a cikin ƙarfin lantarki na gaba (VF) tsakanin na'urori ɗaya, wanda zai iya haifar da rashin daidaituwa mai mahimmanci.

8.2 La'akari da Ƙira da Gargaɗi

An tsara wannan samfurin don kayan aikin lantarki na gabaɗaya. Don aikace-aikacen da ke buƙatar aminci na musamman ko inda gazawar zai iya haifar da haɗari (misali, jirgin sama, tallafin rayuwa na likita), ƙarin cancanta da shawarwari sun zama dole. Dole ne masu ƙira su tabbatar da wurin aiki (ƙarfin lantarki, ƙarfin lantarki, ɓarnawar wuta) ya kasance a cikin ƙayyadaddun ƙididdiga, la'akari da matsakaicin zafin yanayi na aikace-aikacen. Ana buƙatar isasshen shimfidar PCB don zubar da zafi don aikace-aikacen ƙarfin lantarki mai girma ko mai yawa.

9. Kwatanta da Bambance-bambancen Fasaha

Idan aka kwatanta da tsofaffin fasahohi kamar Gallium Arsenide Phosphide (GaAsP) LED ja, fasahar AlInGaP tana ba da ingantaccen inganci mai haske sosai, yana haifar da fitarwa mai haske a daidai wannan ƙarfin lantarki. Faɗin kusurwar kallo na digiri 130 shine babban abin banbancewa daga LED da aka tsara don aikace-aikacen ƙunƙun haske, yana sa ya fi kyau don hasken yanki da alamomin yanayin da ake buƙatar gani daga kusurwoyi daban-daban. Dacewarta da hanyoyin sake karkatarwa na IR ta atomatik ya bambanta shi da abubuwan da ke buƙatar gyaɗa na hannu ko igiyar ruwa.

10. Tambayoyin da ake yawan yi dangane da Ma'auni na Fasaha

10.1 Me yasa akwai irin wannan faɗin kewayon a cikin ƙarfin haske (11.2 zuwa 180 mcd)?

Wannan kewayon yana wakiltar jimlar yaduwa a duk raka'o'in samarwa. Ta hanyar tsarin binning (L zuwa R), masana'anta suna rarraba LED zuwa ƙungiyoyi masu ƙarfi sosai. Masu ƙira suna ƙayyade lambar kwandon da ake buƙata lokacin yin oda don tabbatar da samun LED tare da daidaitaccen haske don aikace-aikacen su.

10.2 Zan iya tuka wannan LED a 30mA don ƙarin haske?

A'a. An ƙayyade matsakaicin matsakaicin ƙarfin lantarki na gaba a matsayin 25 mA. Yin aiki a 30mA ya wuce wannan ƙimar, wanda zai iya haifar da lalacewa mai sauri, rage tsawon rai, da yuwuwar gazawa mai muni saboda zafi mai yawa. Don ƙarin haske, zaɓi LED daga kwandon ƙarfi mafi girma ko samfurin da aka ƙididdige shi don ƙarfin lantarki mafi girma.

10.3 Menene bambanci tsakanin tsayin raƙuman ruwa mai rinjaye da tsayin raƙuman ruwa mafi girma?

Tsawon raƙuman ruwa mafi girma (λp) shine tsayin raƙuman ruwa guda ɗaya wanda bakan fitarwa yake da ƙarfinsa mafi girma. Tsawon raƙuman ruwa mai rinjaye (λd) ƙima ce da aka samo daga daidaitattun launi akan zanen launi na CIE; yana wakiltar launin hasken da aka gane azaman tsayin raƙuman ruwa guda ɗaya. Ga tushen launi ɗaya kamar LED ja, sau da yawa suna kusa, amma λd ya fi dacewa don ƙayyadaddun launi.

11. Nazarin Lamarin Aikace-aikace na Aiki

Yanayi: Hasken Baya don Maɓalli na Membrane.Mai ƙira yana ƙirƙirar panel mai amfani da mai amfani tare da maɓalli 20 waɗanda ke buƙatar hasken baya ja don amfani a cikin yanayi mara haske. Panel yana da ƙarancin sarari, yana buƙatar ɓangaren ƙaramin hoto. An zaɓi LTST-C170KEKT don tsarinsa na SMD, faɗin kusurwar kallo (yana tabbatar da daidaitaccen haske a ƙarƙashin kowane maɓalli), da dacewar haske. Mai ƙira ya zaɓi LED daga kwandon 'M' (18.0-28.0 mcd) don cimma daidaitaccen, matsakaicin matakin haske a duk maɓallai. An yi amfani da IC direba mai ƙarfin lantarki don samar da 20mA ga kowane LED daban, yana tabbatar da daidaitaccen daidaiton haske ba tare da la'akari da ƙananan bambance-bambancen VF ba. Shimfidar PCB ta bi shimfidar gindi da aka ba da shawarar, kuma an yi haɗawa ta amfani da daidaitaccen bayanin martaba na sake karkatarwa maras gubar tare da kololuwar 250°C.

12. Gabatarwa da Ka'idar Aiki

Diodes masu fitar da haske (LED) na'urori ne na semiconductor waɗanda ke fitar da haske ta hanyar electroluminescence. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin p-n, electrons daga yankin n-type da ramuka daga yankin p-type ana shigar da su cikin yankin haɗin gwiwa. Lokacin da waɗannan masu ɗaukar caji suka sake haɗuwa, ana sakin makamashi a cikin nau'in photons (haske). Takamaiman tsawon raƙuman ruwa (launi) na hasken da aka fitar an ƙaddara shi ta hanyar bandgap na kayan semiconductor da aka yi amfani da su. Ga LTST-C170KEKT, tsarin kayan AlInGaP yana da bandgap wanda yayi daidai da hasken ja.

13. Trends da Ci gaban Fasaha

Gabaɗaya yanayin fasahar LED yana zuwa ga ingantaccen inganci (lumens da yawa kowace watt), ingantaccen launi, da ingantaccen aminci. Ga LED masu nuni, ƙananan ƙira yana ci gaba yayin kiyayewa ko ƙara fitowar haske. Hakanan akwai mayar da hankali kan faɗaɗa kewayon launuka masu wuya da inganta daidaiton launi da haske ta hanyar ci gaban masana'antu da dabarun binning. Ƙoƙarin bin ka'idodin RoHS da dacewa da hanyoyin gyaɗa marasa gubar, masu zafi yanzu ya zama daidaitaccen buƙatu a duk masana'antu. Bincike kan sabbin kayan aiki da tsarin nanostructure yana alƙawarin ƙarin riba mai inganci da sabbin ayyuka a nan gaba.