LTST-C191TBKT Blue SMD LED Datasheet - Girman 3.2x1.6x0.55mm - Ƙarfin Wutar Lantarki 2.8-3.8V - Ƙarfi 76mW - Takardun Fasaha na Turanci

1. Bayyani na Samfur

LTST-C191TBKT na'urar haɗawa ta saman (SMD) ce ta fitar da haske (LED) wadda aka tsara don aikace-aikacen lantarki na zamani, waɗanda ke da ƙarancin sarari. Tana cikin rukunin LED na siriri, tana da tsayin siriri na 0.55 mm kawai. Wannan ya sa ta zama zaɓi mai kyau don hasken baya a cikin na'urorin lantarki masu siriri, fitilun nuni a cikin na'urori masu ɗauka, da nunin yanayin inda sararin tsaye ya fi mahimmanci. Na'urar tana amfani da guntu na semiconductor na InGaN (Indium Gallium Nitride), wanda shine ma'auni na masana'antu don samar da hasken shuɗi mai inganci. An tattara shi akan tef na 8mm kuma ana ba da shi akan reels masu diamita 7-inch, wanda ya sa ya dace da kayan aikin haɗawa na atomatik masu sauri da ake amfani da su wajen samarwa mai yawa.

1.1 Siffofi da Fa'idodi na Asali

Babban fa'idodin wannan LED sun samo asali ne daga ƙirar sa ta zahiri da ta lantarki. Fitattun siffar shi ne tsayinsa na siriri na 0.55 mm, wanda kai tsaye yake magance yanayin samfuran ƙarshe masu siriri. An rarraba shi a matsayin samfuri mai kore kuma ya bi umarnin RoHS (Ƙuntata Abubuwa masu haɗari), yana tabbatar da cewa ya cika ka'idojin muhalli na duniya. Fasahar guntu na InGaN tana ba da ƙarfin haske mai yawa daga tushe ƙanƙanta. Tsarin sa na ma'auni na EIA (Ƙungiyar Masana'antu ta Lantarki) yana tabbatar da dacewa da yawancin shirye-shiryen PCB (Allon Kwafi) da ɗakunan ƙira. Bugu da ƙari, an tsara shi don ya dace da hanyoyin haɗa kayan na infrared (IR) na reflow, wanda shine babbar hanyar haɗa abubuwan SMD, yana sauƙaƙe aikin samarwa.

2. Ƙayyadaddun Fasaha: Bincike Mai zurfi

Wannan sashe yana ba da cikakken bayani game da iyakoki da halayen aiki na na'urar, waɗanda ke da mahimmanci don ƙirar da'ira mai dogaro.

2.1 Matsakaicin Matsakaicin Matsakaici

Waɗannan ƙididdiga suna ayyana iyakokin damuwa waɗanda za su iya haifar da lalacewa na dindindin ga na'urar. Ba a nufin su don aiki na yau da kullun ba. Matsakaicin ci gaba na DC na gaba (I_F) shine 20 mA. A ƙarƙashin yanayin bugun jini tare da aikin 1/10 da faɗin bugun jini na 0.1 ms, ana iya yarda da mafi girman ƙarfin gaba na 100 mA. Jimlar ɓarnawar wutar lantarki bai kamata ya wuce 76 mW ba, iyaka da aka ƙaddara ta hanyar iyawar kunshin don canja wurin zafi zuwa PCB. An ƙididdige na'urar don kewayon zafin aiki na -20°C zuwa +80°C kuma ana iya adana ta a cikin yanayi daga -30°C zuwa +100°C. Don haɗawa, zai iya jure zafin reflow na infrared mai girma na 260°C na fiye da dakika 10.

2.2 Halayen Lantarki da Na'ura

Ana auna waɗannan sigogi a daidaitaccen zafin yanayi (T_a) na 25°C da ƙarfin gaba na 20 mA, sai dai idan an faɗi. Suna ayyana aikin na'urar a ƙarƙashin yanayin aiki na yau da kullun.

• Ƙarfin Hasken (I_V):Ya bambanta daga mafi ƙanƙanta na 28.0 mcd zuwa mafi girma na 180.0 mcd. Ƙimar ainihi don takamaiman naúrar ya dogara da lambar kwandon sa (duba Sashe na 3). Ana auna ƙarfi ta amfani da firikwensin da aka tace don dacewa da madaidaicin amsawar ido na ɗan adam.
• Kusurwar Dubawa (2θ_1/2):Faɗin kusurwa mai 130 digiri, wanda aka ayyana a matsayin madaidaicin madaidaici inda ƙarfin haske ya ragu zuwa rabin ƙimar sa akan-axis (0°). Wannan yana nuna tsarin fitarwa na Lambertian ko kusa da Lambertian, wanda ya dace da aikace-aikacen da ke buƙatar hasken yanki mai faɗi maimakon hasken da aka mayar da hankali.
• Matsakaicin Tsawon Tsawon (λ_P):Yawanci 468 nm. Wannan shine tsayin tsayin da rarraba ƙarfin bakan ya fi girma.
• Matsakaicin Tsawon Tsawon (λ_d):Ya bambanta daga 465.0 nm zuwa 475.0 nm. Wannan shine tsayin tsayin guda ɗaya da idon ɗan adam ya gane don dacewa da launin LED, wanda aka samo daga zanen launi na CIE. Shi ne babban ma'auni don daidaiton launi.
• Rabin Faɗin Layin Bakan (Δλ):Kimanin 25 nm. Wannan yana auna faɗin band na hasken da aka fitar, yana nuna tsaftar bakan. Ƙimar al'ada don LED na Blue InGaN.
• Ƙarfin Wutar Lantarki na Gaba (V_F):Ya bambanta daga 2.80 V zuwa 3.80 V a 20 mA. An ƙididdige ainihin ƙimar (duba Sashe na 3). Wannan sigogi yana da mahimmanci don ƙirar da'irar iyakancewar halin yanzu.
• Halin Yanzu na Baya (I_R):Matsakaicin 10 μA lokacin da aka yi amfani da ƙarfin wutar lantarki na baya (V_R) na 5V. Yana da mahimmanci a lura cewa wannan LEDba a tsara shi don aikin baya ba; wannan yanayin gwaji ne don siffanta kawai. Yin amfani da bambance-bambancen baya a cikin da'ira zai iya lalata na'urar.

3. Bayanin Tsarin Rarrabuwa

Don tabbatar da daidaito a cikin samarwa mai yawa, ana rarraba LED zuwa kwandon aiki. LTST-C191TBKT yana amfani da tsarin rarrabuwa mai girma uku don mahimman sigogi.

3.1 Rarrabuwar Ƙarfin Wutar Lantarki na Gaba

Ana rarraba raka'a zuwa kwandon D7 zuwa D11 bisa ga ƙarfin wutar lantarki na gaba (V_F) a 20 mA. Misali, kwandon D7 ya ƙunshi LED tare da V_Ftsakanin 2.80V da 3.00V, yayin da kwandon D11 ya ƙunshi waɗanda daga 3.60V zuwa 3.80V. Haƙuri a cikin kowane kwandon shine ±0.1V. Zaɓin LED daga kwandon wutar lantarki ɗaya yana taimakawa wajen kiyaye haske da amfani da wutar lantarki iri ɗaya a cikin jeri.

3.2 Rarrabuwar Ƙarfin Hasken

An rarraba ƙarfi zuwa lambobin N, P, Q, da R. Kwandon N ya ƙunshi 28.0-45.0 mcd, kuma kwandon R ya ƙunshi mafi girman kewayon 112.0-180.0 mcd. Haƙuri ga kowane kwandon ƙarfi shine ±15%. Wannan yana ba masu ƙira damar zaɓar matakin haske wanda ya dace da aikace-aikacensu, daidaita gani tare da ingantaccen wutar lantarki.

3.3 Rarrabuwar Matsakaicin Tsawon Tsawon

An rarraba launi (matsakaicin tsawon tsayi) zuwa lambobi biyu: AC (465.0-470.0 nm) da AD (470.0-475.0 nm), tare da haƙuri na ±1 nm a kowane kwandon. Wannan matsakaicin sarrafawa yana tabbatar da ƙarancin bambancin launi, wanda ke da mahimmanci ga aikace-aikace kamar hasken baya na LED da yawa ko alamomin yanayin inda daidaitawar launi ke da mahimmanci.

4. Bincike na Lanƙwasa Aiki

Yayin da aka ambaci takamaiman lanƙwasa masu hoto a cikin takardar bayanai (misali, Hoto na 1 don rarraba bakan, Hoto na 6 don kusurwar kallo), tasirinsu yana da ma'auni ga LED na InGaN. Lanƙwasa na gaba na halin yanzu da ƙarfin wutar lantarki na gaba (I-V) zai nuna alaƙar al'ada, tare da ƙarfin wutar lantarki na gwiwa kusan 2.8-3.0V. Lanƙwasa na ƙarfin haske da halin yanzu na gaba gabaɗaya yana da layi har zuwa ƙimar halin yanzu, bayan haka inganci na iya raguwa saboda dumama. Matsakaicin tsayin tsayi yawanci yana da ɗan ƙaramin ƙaramin zafin jiki mara kyau, ma'ana yana iya canzawa zuwa tsayin tsayi (ɗan ƙarin kore) yayin da zafin haɗin ke ƙaruwa. Faɗin kusurwar kallo mai 130 digiri yana tabbatar da bayanin fitarwa na kusa da Lambertian.

5. Bayanin Injiniya da Kunshin

5.1 Girman Jiki

Kunshin yana bin ma'auni na EIA. Manyan girma sun haɗa da tsayin al'ada na 3.2 mm, faɗin 1.6 mm, da ƙayyadaddun tsayi na 0.55 mm. An ba da cikakkun zane-zane masu girma don ƙirar ƙirar ƙasa ta PCB. Duk girma suna da haƙuri na ma'auni na ±0.10 mm sai dai idan an faɗi.

5.2 Ganewar Polarity da Ƙirar Pad

LED yana da anode da cathode. Yawanci ana nuna polarity ta hanyar alama akan kunshin ko ta hanyar fasalin da bai dace ba a cikin sawun ƙafa. Takardar bayanai ta haɗa da ƙayyadaddun girma na kushin haɗawa don tabbatar da ingantaccen fillet na solder yana samuwa yayin reflow, wanda ke da mahimmanci ga haɗin lantarki da ƙarfin injiniya. Ƙirar pad mai kyau kuma tana taimakawa wajen kawar da zafi.

6. Jagororin Haɗa Kayan da Haɗawa

6.1 Bayanin Reflow Solder

An cancanta na'urar don hanyoyin solder marasa gubar (Pb-free). An ba da shawarar bayanin reflow na infrared, wanda ya dace da ma'auni na JEDEC. Manyan sigogi sun haɗa da yankin pre-heat (yawanci 150-200°C), rampa mai sarrafawa zuwa matsakaicin zafin jiki wanda bai wuce 260°C ba, da lokacin da ya wuce ruwa (TAL) wanda ya dace da man solder. Matsakaicin zafin jiki na 260°C bai kamata a wuce fiye da dakika 10 ba. An jaddada cewa dole ne a siffanta ainihin bayanin don takamaiman ƙirar PCB, abubuwan haɗin, da man solder da aka yi amfani da su.

6.2 Haɗa Kayan da Hannu

Idan haɗa kayan da ƙarfe da hannu ya zama dole, shawarar ita ce a yi amfani da zafin ƙarshen da bai wuce 300°C ba kuma a iyakance lokacin tuntuɓar zuwa mafi girman dakika 3 don aiki ɗaya kawai. Yawan zafi daga ƙarfe na iya lalata ƙaramin kunshin cikin sauƙi.

6.3 Yanayin Ajiya da Sarrafawa

LED suna da damuwa da danshi. Lokacin da aka adana su a cikin jakar su ta asali mai rufewa mai hana danshi tare da busassun abu, ya kamata a kiyaye su a ≤30°C da ≤90% RH kuma a yi amfani da su cikin shekara guda. Da zarar an buɗe jakar, yanayin ajiyar bai kamata ya wuce 30°C da 60% RH ba. Abubuwan da aka fallasa ga danshin yanayi fiye da sa'o'i 672 (kwanaki 28) yakamata a gasa su a kusan 60°C na aƙalla sa'o'i 20 kafin reflow soldering don hana popcorning (fashewar kunshin saboda matsi na tururi). Don tsawaita ajiya daga jakar asali, yi amfani da akwati mai rufewa tare da busassun abu.

6.4 Tsaftacewa

Idan ana buƙatar tsaftacewa bayan haɗa kayan, 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 jiki na yau da kullun na ƙasa da minti ɗaya. Masu tsaftacewa na sinadarai waɗanda ba a bayyana ba na iya lalata kayan kunshin filastik.

7. Bayanin Kunshin da Oda

Kunshin daidaitaccen shine tef mai ɗaukar kaya mai faɗin 8mm akan reels masu diamita 7-inch (178 mm). Kowane reel yana ƙunshe da guda 5000 na LTST-C191TBKT LED. Tef yana amfani da murfin saman don rufe aljihuna fanko. Kunshin yana bin ƙayyadaddun ANSI/EIA 481-1-A-1994. Don ragowar samarwa, mafi ƙarancin adadin shirya na guda 500 ya shafi.

8. Shawarwari na Aikace-aikace

8.1 Yanayin Aikace-aikace na Al'ada

Siririn bayanin ya sa wannan LED ya dace don: hasken baya akan maɓallan madannai masu siriri ko na'urorin sarrafa nesa, alamomin yanayin a cikin wayoyin hannu, kwamfutocin hannu, da kwamfutocin hannu masu siriri, hasken panel a cikin dashbodin motoci ko na'urorin masu amfani, da kuma a matsayin alamar shuɗi na gabaɗaya a cikin PCB masu cike da juna.

8.2 Abubuwan Ƙira da Bayanan Kula

• Tukin Halin Yanzu:LED na'urar da aka tuka ta halin yanzu ce. Koyaushe yi amfani da resistor mai iyakancewar halin yanzu ko da'irar direba mai tsayayyen halin yanzu. Ana ƙididdige ƙimar resistor ta amfani da R = (V_wadata- V_F) / I_F. Yi amfani da mafi girman V_Fdaga kwandon ko takardar bayanai don tabbatar da halin yanzu bai wuce 20 mA ba a ƙarƙashin mafi munin yanayi.
• Kariya ta ESD:Guntu na InGaN yana da hankali ga zubar da wutar lantarki (ESD). Dole ne a yi amfani da ingantattun sarrafawa na ESD (bel ɗin wuyan hannu, tashoshin aiki masu tushe, bene mai ɗaukar hoto) yayin sarrafawa da haɗawa.
• Gudanar da Zafi:Yayin da wutar lantarki ta yi ƙasa, tabbatar da ingantacciyar hanyar zafi daga kushin LED zuwa tagulla na PCB yana taimakawa wajen kiyaye aiki da tsawon rai, musamman lokacin da aka tuka shi a ko kusa da matsakaicin halin yanzu.
• Kariya ta Ƙarfin Wutar Lantarki na Baya:Kamar yadda ba a tsara na'urar don bambance-bambancen baya ba, yi la'akari da ƙara diode na kariya a layi daya (cathode zuwa anode) idan LED zai iya fallasa ga ƙarfin wutar lantarki na baya a cikin da'ira.

9. Kwatancen Fasaha da Bambance-bambance

Babban bambance-bambancen LTST-C191TBKT shine tsayinsa na 0.55 mm, wanda ya fi siriri fiye da yawancin LED na SMD na yau da kullun (misali, kunshin 0603 ko 0402 waɗanda galibi suna da tsayi >0.8 mm). Idan aka kwatanta da LED na gefen kallo, yana ba da tsarin fitarwa na sama tare da faɗin kusurwar kallo. Fasahar InGaN tana ba da inganci mafi girma da ingantaccen jikewa na launi fiye da tsofaffin fasahohin LED na shuɗi. Cikakken tsarin rarrabuwa yana ba da ingantaccen daidaiton launi da haske idan aka kwatanta da madadin da ba a rarraba ba ko sako-sako da rarrabuwa, wanda ke da mahimmanci ga aikace-aikacen LED da yawa.

10. Tambayoyin da ake yawan yi (Bisa ga Sigogin Fasaha)

Q: Wane resistor nake buƙata don wadata 5V?

A: Yin amfani da mafi girman V_Fna 3.8V da manufa I_Fna 20mA: R = (5V - 3.8V) / 0.02A = 60 Ω. Daidaitaccen resistor na 62 Ω ko 68 Ω zai dace. Koyaushe tabbatar da ainihin V_Fkwandon na LED ɗin ku.

Q: Zan iya tuka shi da wadata 3.3V?

A: Mai yiwuwa, amma a hankali. Idan V na LED_Fyana a ƙarshen babban kewayon sa (misali, 3.8V), wadata 3.3V bazai kunna shi gaba ɗaya ko kwata-kwata ba. Kuna buƙatar duba mafi ƙarancin V_F(2.8V) kuma mai yiwuwa ku yi amfani da direba mai tsayayyen halin yanzu maimakon resistor mai sauƙi don aiki mai dogaro.

Q: Ta yaya zan fassara ƙimar ƙarfin haske?

A: Ƙarfin haske (mcd) yana auna haske a takamaiman shugabanci (akan-axis). Faɗin kusurwar kallo yana nufin wannan haske yana yaduwa akan babban yanki, don haka hasken da ake gani a saman ya dogara da nisa da kusurwa. Don kwatanta, LED na al'ada na 5mm ta hanyar rami na iya zama 1000-5000 mcd amma tare da katako mai ƙunƙuntawa.

Q: Shin ya dace don amfani a waje?

A: Kewayon zafin aiki (-20°C zuwa +80°C) ya ƙunshi yawancin yanayi na waje. Duk da haka, tsawaita fallasa ga hasken rana kai tsaye (UV) da yanayi na iya lalata kunshin filastik. Don mawuyacin yanayi, tabbatar da dacewa tare da masana'anta kuma ku yi la'akari da suturar kariya.

11. Misalai na Ƙira da Amfani na Aiki

Misali na 1: Mashaya Yanayi na LED da yawa:Ƙirar zane-zane tare da LED 10 na shuɗi. Don tabbatar da kamanni iri ɗaya, ƙayyade LED daga kwandon Matsakaicin Tsawon Tsawon ɗaya (misali, duk kwandon AD) da kwandon Ƙarfin Hasken ɗaya (misali, duk kwandon P). Ku tuka su tare da tushen halin yanzu guda ɗaya wanda aka raba ta hanyar transistors ko IC direba na LED don tabbatar da halin yanzu iri ɗaya don haka haske da launi iri ɗaya.

Misali na 2: Hasken Baya na Maɓalli na Bakin ciki Mai Siriri:Tsayin 0.55mm yana ba da damar LED ya dace a bayan Layer na membrane da mai watsawa a cikin haɗuwa mai kauri ƙasa da 2mm. Faɗin kusurwar kallo mai 130 digiri yana tabbatar da haske ko da na alamar maɓalli. Halin yanzu na 10-15 mA (maimakon 20 mA) na iya isa, yana rage amfani da wutar lantarki da zafi.

12. Gabatarwar Ka'idar Fasaha

LTST-C191TBKT ya dogara ne akan fasahar semiconductor na InGaN. Lokacin da aka yi amfani da ƙarfin wutar lantarki na gaba a kan haɗin p-n, ana shigar da electrons da ramuka cikin yanki mai aiki. Haɗuwarsu yana sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke cikin gawa na Indium Gallium Nitride a cikin tsarin rijiyar ƙididdiga yana ƙayyade ƙarfin bandgap, don haka tsayin tsayi (launi) na hasken da aka fitar. Don hasken shuɗi, ana buƙatar bandgap wanda ya dace da kusan 2.6-2.7 electron volts (eV). Kunshin filastik yana aiki don kare ƙwayar semiconductor mai rauni, samar da tsarin injiniya, kuma ya haɗa da ruwan tabarau wanda ke siffanta fitarwar haske, yana haifar da faɗin kusurwar kallo.

13. Trends da Ci gaban Masana'antu

Trend a cikin SMD LED don na'urorin lantarki na masu amfani yana ci gaba zuwa ƙananan ƙira (ƙananan sawun ƙafa da ƙananan bayanai) da inganci mafi girma (ƙarin fitarwar haske a kowace watt na shigar da lantarki). Hakanan akwai yunƙuri don ingantaccen daidaiton launi da ƙaramin rarrabuwa daga masana'anta. Karɓar kayan da ba su da gubar da ba su da halogen don dacewa da muhalli shine ma'auni. Ta fuskar aikace-aikace, haɗin kai shine maɓalli, tare da LED suna ƙara haɗawa tare da direbobi ko na'urori masu auna firikwensin, ko kuma an saka su kai tsaye cikin PCB. Fasahar InGaN ta ƙasa ta balaga amma tana ci gaba da ganin haɓaka a cikin ingancin ƙididdiga na ciki da tsawon rai.