LED na SMD Mai Juyawa Mai Haske Raɗaɗi 588nm - Girman Kunshin 3.2x1.6x1.1mm - Ƙarfin Lantarki na Gaba 2.4V - Ragewar Wutar Lantarki 75mW - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfurin

Wannan takarda ta yi cikakken bayani game da ƙayyadaddun bayanai don babban LED na SMD mai juyawa mai haske. Na'urar tana amfani da guntu na semiconductor AlInGaP don samar da hasken rawaya, wanda aka lulluɓe a cikin kunshin ruwa mai tsabta. Babban ƙirarta shine don hanyoyin haɗawa ta atomatik, ana samar da shi akan kaset mai girman 8mm wanda aka nannade akan reel mai inci 7. Muhimman fasalulluka sun haɗa da bin umarnin RoHS, dacewa da goge-goge mai juyawa ta infrared da tururi, da kuma dacewa don amfani a cikin nau'ikan aikace-aikacen lantarki da ake buƙatar hasken nuni mai aminci da haske.

2. Fassarar Ma'ana Mai Zurfi na Ma'auni na Fasaha

2.1 Madaidaicin Ƙididdiga

Ana ayyana iyakokin aiki na na'urar a yanayin zafin yanayi (Ta) na 25°C. Matsakaicin ci gaba na DC na yanzu shine 30 mA. Matsakaicin ci gaba na yanzu, wanda aka yarda a ƙarƙashin yanayin bugun jini (1/10 aikin aiki, faɗin bugun 0.1ms), shine 80 mA. Matsakaicin raguwar wutar lantarki shine 75 mW. Don yanayin zafin yanayi sama da 50°C, dole ne a rage ƙarfin ci gaba da aka yarda a layi a cikin adadin 0.4 mA a kowace digiri Celsius. Matsakaicin ƙarfin lantarki na baya da za a iya amfani da shi shine 5 V. Na'urar na iya aiki a cikin kewayon yanayin zafin yanayi daga -30°C zuwa +85°C kuma ana iya adana ta tsakanin -40°C da +85°C. Yanayin goge-goge na infrared an ƙayyade shi azaman matsakaicin zafin jiki na 260°C na matsakaicin dakika 5.

2.2 Halayen Lantarki da Haske

An auna a Ta=25°C da ƙarfin lantarki na gaba (IF) na 20 mA, mahimman ma'auni na aiki sune kamar haka. Ƙarfin haske (Iv) yana da ƙima ta al'ada, amma an raba shi daga mafi ƙarancin 28.0 mcd zuwa matsakaicin 450.0 mcd. Kallon kusurwa (2θ1/2), wanda aka ayyana shi azaman cikakken kusurwar da ƙarfin ya ragu zuwa rabin ƙimar axial, shine digiri 70. Matsakaicin tsayin fitarwa (λP) shine 588.0 nm. Tsayin zango mai rinjaye (λd), wanda ke ayyana launin da ake gani, shine 587.0 nm. Ramin layin guda rabi (Δλ) shine 17 nm. Ƙarfin lantarki na gaba (VF) yawanci yana auna 2.4 V, tare da matsakaicin 2.4 V a yanayin gwaji. Ƙarfin lantarki na baya (IR) shine matsakaicin 10 µA a ƙarfin lantarki na baya (VR) na 5 V. Ƙarfin lantarki na haɗin gwiwa (C) shine 40 pF da aka auna a sifili bias da 1 MHz.

3. Bayanin Tsarin Binning

Ana rarraba fitarwar haske na LED zuwa kwandon don tabbatar da daidaito a aikace-aikace. Binning ya dogara ne akan mafi ƙarancin da matsakaicin ƙarfin haske da aka auna a 20 mA. Lambobin kwandon da kewayon da suka dace sune: N (28.0-45.0 mcd), P (45.0-71.0 mcd), 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). Ana amfani da jurewar +/-15% ga kowane kwandon ƙarfi. Wannan tsarin yana ba masu ƙira damar zaɓar abubuwan da suka dace da matakin haske da ake buƙata a cikin ƙirar su.

4. Bincike na Lanƙwasa Aiki

Takardar bayanai tana nufin lanƙwasa aiki na al'ada waɗanda ke da mahimmanci don binciken ƙira. Waɗannan lanƙwasa, waɗanda aka zana akan yanayin zafin yanayi sai dai idan an lura, yawanci za su kwatanta alaƙar tsakanin ƙarfin lantarki na gaba da ƙarfin haske, bambancin ƙarfin lantarki na gaba tare da zafin jiki, da ƙarfin haske mai dangi da tsayin zango (rarrabawar haske). Binciken lanƙwasa IV yana taimakawa wajen ƙirar da'irar iyakance yanzu, yayin da lanƙwasa rage zafin jiki yana da mahimmanci don tabbatar da aminci a ƙarƙashin yanayin zafin jiki daban-daban. Lanƙwasa rarraba haske yana tabbatar da yanayin fitar haske mai launi guda da ke kewaye da 588 nm.

5. Bayanan Injiniya da Kunshi

5.1 Girman Kunshi da Polarity

LED ya yi daidai da daidaitaccen tsarin kunshin EIA. Muhimman ma'auni sun haɗa da tsayin gabaɗaya, faɗi, da tsayi. Ana gano cathode ta hanyar alamar gani kamar tsaga ko alama kore akan kunshin. An ba da cikakkun zane-zane masu girma a cikin takardar bayanai, tare da duk ma'auni a cikin milimita da daidaitaccen jurewar ±0.10 mm sai dai idan an ƙayyade.

5.2 Bayanan Kaset da Reel

Don haɗawa ta atomatik na ɗauka da sanyawa, ana samar da abubuwan a cikin kaset mai ɗaukar hoto. Faɗin kaset shine 8 mm. Ana ɗora abubuwan a cikin aljihu kuma a rufe su da kaset ɗin saman. Ana nannade su akan reel tare da diamita inci 7 (178 mm). Kowane cikakken reel ya ƙunshi guda 3000. Don adadin ƙasa da cikakken reel, mafi ƙarancin adadin shiryawa na guda 500 ya shafi sauran. Kunshin ya yi daidai da ƙayyadaddun ANSI/EIA 481-1-A-1994, tare da matsakaicin izinin abubuwan da suka ɓace biyu a jere a cikin kaset.

6. Jagororin Goge-goge da Haɗawa

6.1 Bayanan Goge-goge Mai Juyawa

An ba da shawarar bayanan juyawa na infrared (IR) guda biyu: ɗaya don tsarin goge-goge na al'ada (tin-lead) da ɗaya don tsarin goge-goge maras gubar (Pb-free). Ana ba da shawarar musamman bayanin maras gubar don amfani da man goge-goge na SnAgCu. Bayanan sun ayyana mahimman ma'auni ciki har da zafin jiki da lokacin preheat, lokacin sama da ruwa, matsakaicin zafin jiki, da ƙimar sanyaya. Bin waɗannan bayanan, musamman matsakaicin matsakaicin zafin jiki na 260°C na dakika 5, yana da mahimmanci don hana lalacewar zafin jiki ga kunshin LED da guntu na semiconductor.

6.2 Tsaftacewa da Ajiya

Idan ana buƙatar tsaftacewa bayan goge-goge, kawai yakamata a yi amfani da kaushi da aka ƙayyade. Tsoma LED a cikin barasa na ethyl ko isopropyl a yanayin zafi na al'ada na ƙasa da minti ɗaya yana da kyau. Sinadarai da ba a ƙayyade ba na iya lalata ruwan tabarau na epoxy. Don ajiya, yakamata a ajiye LED a cikin yanayi wanda bai wuce 30°C da 70% zafi ba. Abubuwan da aka cire daga jakar shinge na danshi na asali yakamata a goge su a cikin mako guda. Don ajiyar dogon lokaci a wajen kunshin asali, dole ne a adana su a cikin akwati mai rufi tare da bushewa ko a cikin yanayin nitrogen kuma suna buƙatar tsari na gasa (kimanin 60°C na awanni 24) kafin haɗawa don cire danshin da aka sha.

7. Shawarwarin Aikace-aikace

7.1 Da'irorin Aikace-aikace na Al'ada

LEDs na'urori ne masu motsa yanzu. Don tabbatar da daidaiton haske lokacin tuka LED da yawa, ana ƙarfafa ba da shawarar yin amfani da resistor mai iyakance yanzu na jeri ga kowane LED, kamar yadda aka nuna a cikin "Samfurin Da'irar A" na takardar bayanai. Tuka LED da yawa a layi kai tsaye daga tushen ƙarfin lantarki ("Samfurin Da'irar B") ba a ba da shawara ba saboda ƙananan bambance-bambance a cikin halayen ƙarfin lantarki na gaba (Vf) na kowane LED na iya haifar da bambance-bambance masu yawa a cikin yanzu, saboda haka, haske. Resistor na jeri yana daidaita yanzu ta kowace LED da kanta.

7.2 Kariya daga Zubar da Lantarki (ESD)

LED yana da hankali ga zubar da lantarki. Lalacewar ESD na iya bayyana azaman babban yawan zubar da baya, ƙarancin ƙarfin lantarki na gaba, ko gazawar haskakawa a ƙananan yanayi. Matakan rigakafin dole ne a yi su yayin sarrafawa da haɗawa: ma'aikata yakamata su sanya rigunan wuyan wuyan wuyan hannu ko safar hannu masu hana tashin hankali; duk kayan aiki, wuraren aiki, da rumfunan ajiya dole ne a kafa su da kyau. Ana iya amfani da ionizer don kawar da cajin tsaye wanda zai iya taruwa akan ruwan tabarau na filastik. Tabbatar da lalacewar ESD ya haɗa da duba haskakawa da auna Vf a matakan ƙarancin yanzu.

8. Abubuwan Tunani na Ƙira da Gargaɗi

An yi amfani da na'urar don kayan aikin lantarki na gabaɗaya. Aikace-aikacen da ke buƙatar aminci na musamman, musamman inda gazawar za ta iya haifar da haɗarin rayuwa ko lafiya (misali, jirgin sama, na'urorin likita), suna buƙatar tuntuba kafin. Hanyar tuƙi dole ne ta mutunta madaidaicin ƙididdiga na yanzu da wutar lantarki, tare da haɗa da ragewa da ake buƙata don haɓakar yanayin yanayi. Yakamata a yi la'akari da sarrafa zafin jiki akan PCB idan ana aiki kusa da madaidaicin ƙididdiga. Tsarin goge-goge dole ne ya bi matsayin girma da aka ba da shawarar don tabbatar da daidaiton injiniya da samuwar haɗin goge-goge yayin juyawa.

9. Gabatarwar Fasaha da Trends

Wannan LED yana amfani da fasahar AlInGaP, wacce aka sani da ingantacciyar inganci da kwanciyar hankali wajen samar da hasken ja, orange, da rawaya. Ƙirar "juyawa" tana nuna cewa saman fitar haske yana gefen gaba da gindin goge-goge, wanda zai iya zama fa'ida don takamaiman ƙirar gani ko shimfidar wuri masu ƙunci inda ake buƙatar fitar haske gefe. Trends a cikin SMD LEDs yana ci gaba zuwa ga ingantaccen inganci na haske (ƙarin fitar haske a kowace watt na lantarki), ingantacciyar daidaiton launi ta hanyar ƙaramin binning, da ingantaccen aminci a ƙarƙashin yanayi mai tsauri, gami da mafi girman yanayin zafin jiki na goge-goge da ake buƙata don haɗawa maras gubar.