LTL-E7939Q3K LED Infrared Datasheet - Tsarin Cire Rami - Tsawon Tsawon 850nm - Ƙarfin Radiant 20mW/sr - Ƙarfin Gaba 1.6V - Takardun Fasaha na Hausa

1. Bayanin Samfur

LTL-E7939Q3K babban LED infrared (IR) ne mai inganci wanda aka ƙera don ɗora ta hanyar cire rami akan allunan da'ira (PCBs) ko bangon waya. An ƙera shi don aikace-aikacen da ke buƙatar ingantaccen siginar gani mai sauri ko haske a cikin kewayon infrared na kusa. Na'urar tana amfani da kayan semiconductor na AlGaAs (Aluminum Gallium Arsenide), wanda aka inganta don fitar da haske a 850 nanometers, tsawon raƙuman da aka saba amfani da shi don sadarwar IR, firikwensin, da tsarin hasken dare.

Babban fa'idodinsa sun haɗa da haɗakar ƙarfin haske mai ƙarfi, dacewa da da'irori saboda ƙarancin buƙatun wutar lantarki, da ƙaƙƙarfan fakitin cire rami wanda ya dace da nau'ikan hanyoyin haɗawa. Samfurin ya bi ka'idojin RoHS, yana nuna cewa an ƙera shi ba tare da amfani da abubuwa masu haɗari kamar gubar (Pb) ba. Kasuwowin da aka yi niyya sun haɗa da sarrafa masana'antu, tsarin tsaro (misali, hangen nesa na dare na CCTV), masu ɓoye gani, masu sarrafa nesa, da firikwensin kusanci inda tushen hasken infrared mai dogaro ke da mahimmanci.

2. Fassarar Maƙasudin Ƙididdiga na Fasaha

2.1 Iyakar Iyaka

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 ko a waɗannan iyakokin ba kuma ya kamata a guje su a cikin ƙirar da za a iya dogaro da ita.

• Rushewar Wutar Lantarki (Pd):Matsakaicin 120 mW. Wannan shine jimillar wutar lantarki (Vf * If) da fakiti zai iya watsawa azaman zafi ba tare da wuce matsakaicin zafin haɗin gwiwa ba. Wuce wannan iyaka yana haifar da haɗarin zafi mai gudu da gazawa.
• Matsakaicin Halin Yanzu na Gaba (I_FP):1 A a ƙarƙashin yanayin bugun jini (bugun jini 300 a kowace dakika, faɗin bugun jini 10 μs). Wannan ƙididdiga ya fi ƙimar DC girma sosai, yana ba da damar bugun jini gajere, mai ƙarfi mai amfani a cikin watsa bayanai.
• Matsakaicin Halin Yanzu na DC (I_F):Ci gaba da 60 mA. Wannan shine matsakaicin halin yanzu na tsayayye don aiki mai dogaro na dogon lokaci.
• Ƙarfin Lantarki na Baya (V_R):5 V. Yin amfani da ƙarfin lantarki na baya wanda ya fi wannan girma zai iya haifar da rushewa da gazawar PN junction na LED.
• Zafin Aiki & Ajiya:-30°C zuwa +85°C da -40°C zuwa +100°C, bi da bi. Waɗannan suna ayyana iyakokin muhalli don aiki da ajiyar da ba ta aiki ba.
• Zafin Solder na Jagora:260°C na dakika 5, ana auna 2.0mm daga jikin LED. Wannan yana jagorantar hanyoyin solder na hannu don hana lalacewar zafi ga ruwan tabarau na epoxy da haɗin gwiwar ciki.

2.2 Halayen Lantarki / Na Gani

Waɗannan sune ƙididdiga na yau da kullun da aka garantin aikin da aka auna a ƙarƙashin daidaitattun yanayin gwaji (Ta=25°C).

• Ƙarfin Radiant (I_e):Mafi ƙarancin 20.0 mW/sr a I_F= 20mA. Ƙarfin radiant yana auna ƙarfin gani da ake fitarwa a kowace raka'ar kusurwa mai ƙarfi (steradian). Wannan babban ma'auni ne don tantance ingantaccen kewayo da ƙarfin siginar a cikin tsarin IR. Takardun bayanan ya lura cewa ya kamata a yi amfani da jurewar ±15% akan ƙimar da aka garantin.
• Kusurwar Dubawa (2θ_1/2):Na yau da kullun digiri 30. Wannan shine cikakken kusurwar da ƙarfin radiant ya ragu zuwa rabin ƙimar kololuwar sa (a kan-axis). Kusurwar 30° tana nuna katakon da aka mayar da hankali sosai, wanda ya dace da aikace-aikacen da aka nufa.
• Matsakaicin Tsawon Raƙuman (λ_P):Na yau da kullun 850 nm. Wannan shine tsawon raƙuman da LED ke fitar da mafi yawan ƙarfin gani. 850nm yana cikin kewayon infrared na kusa, wanda idon ɗan adam ba ya gani amma silicon photodiodes da yawancin firikwensin kyamara suna iya gano shi.
• Rabin Faɗin Layin Bakan (Δλ):Na yau da kullun 40 nm. Wannan yana ƙayyadad da faɗin raƙuman raƙuman inda ƙarfin fitarwa ya kasance aƙalla rabin ƙarfin kololuwar. Faɗin 40nm ya zama ruwan dare ga LED na IR.
• Ƙarfin Lantarki na Gaba (V_F):Na yau da kullun 1.3V, Matsakaicin 1.6V a I_F= 20mA. Wannan shine raguwar ƙarfin lantarki a kan LED lokacin da ake gudanar da wutar lantarki. Yana da mahimmanci don ƙirar da'irar iyakance halin yanzu.
• Halin Yanzu na Baya (I_R):Matsakaicin 10 μA a V_R= 5V. Wannan shine ƙaramin halin yanzu na ɓarna wanda ke gudana lokacin da LED ke da baya a cikin iyakarsa mai aminci.

3. Bayanin Tsarin Binning

Takardun bayanan yana nuna amfani da tsarin rarrabuwa ko binning don Ƙarfin Radiant (I_e). Bayanin ya ce: \"An yiwa alamar lambar rarrabuwar Ie akan kowace jakar tattarawa.\" Wannan yana nuna cewa ana gwada LED ɗin da aka ƙera kuma ana rarraba su (bin) dangane da ƙarfin radiant da aka auna. Lambar sashi LTL-E7939Q3K tana ƙayyadad da mafi ƙarancin ƙarfin radiant (18~21.5 mW/sr Min, kamar yadda aka nuna a cikin teburin rarrabuwar lambar sashi), amma raka'o'i ɗaya a cikin jigilar kaya na iya faɗowa cikin takamaiman ƙananan kewayon (kwandon). Masu ƙira ya kamata su san cewa ainihin ƙarfin takamaiman LED na iya bambanta a cikin mafi ƙarancin garantin da kewayon kwandon. Takardun bayanan bai ba da cikakkun bayanai game da takamaiman kwandon don tsawon raƙuman (λ_P) ko ƙarfin lantarki na gaba (V_F), yana jera kawai ƙididdiga na yau da kullun da matsakaici/matsakaici.

4. Bincike na Lanƙwasa Aiki

Takardun bayanan yana nuni da yawancin lanƙwasa halaye na yau da kullun, waɗanda ke ba da zurfin fahimtar halayen na'urar a ƙarƙashin yanayi daban-daban.

• Lanƙwasa Bakan:Yana kwatanta ƙarfin radiant mai alaƙa azaman aikin tsawon raƙuman, yana mai da hankali a kusa da kololuwar 850nm tare da ƙayyadadden rabin faɗin 40nm.
• Ƙarfin Lantarki na Gaba vs. Halin Yanzu na Gaba (Lanƙwasa I-V):Yana nuna alaƙar da ba ta layi tsakanin ƙarfin lantarki da halin yanzu. Lanƙwasa zai sami ƙarfin lantarki mai ƙofa (kusan 1.1-1.2V don AlGaAs) bayan haka halin yanzu yana ƙaruwa cikin sauri tare da ƙananan ƙaruwa a cikin ƙarfin lantarki, yana nuna dalilin da yasa sarrafa halin yanzu (ba sarrafa ƙarfin lantarki ba) yana da mahimmanci.
• Ƙarfin Radiant Mai Alaƙa vs. Halin Yanzu na DC na Gaba:Yana nuna yadda ƙarfin fitarwa na gani ke ƙaruwa tare da halin yanzu na tuƙi, yawanci a cikin alaƙar kusa da layi a cikin kewayon aiki kafin inganci ya ragu a halin yanzu mai girma saboda tasirin zafi.
• Ƙarfin Radiant Mai Alaƙa vs. Matsakaicin Halin Yanzu (Bugun Jini):Hakazalika da lanƙwasa DC amma don aikin bugun jini, yana nuna fitarwa mai yuwuwa a halin yanzu har zuwa matsakaicin 1A.
• Ƙarfin Radiant Mai Alaƙa vs. Zazzabi:Lanƙwasa mai mahimmanci da ke nuna raguwar fitarwa na gani yayin da zafin haɗin gwiwa ya tashi. Dole ne a yi la'akari da wannan abin da ke rage zafin jiki a cikin ƙira inda yanayin yanayi ya yi zafi ko kuma sarrafa zafi ba shi da kyau.
• Tsarin Jagora:Zane na polar wanda ke nuna rarraba kusurwar hasken da aka fitar, yana ayyana kusurwar dubawa na 30° a zahiri.

5. Bayanin Injiniya da Fakitin

5.1 Girman Fakitin

LED yana cikin daidaitaccen fakiti na cire rami, T-1 3/4 (5mm) zagaye. Manyan girmomi daga zanen sun haɗa da:

• Diamita na Ruwan Tabarau: Kusan 5.0mm.
• Tsayin Fakitin: Kusan 8.7mm daga ƙasan jagororin zuwa saman ruwan tabarau.
• Diamita Jagora: 0.56mm na al'ada.
• Tazarar Jagora: 2.54mm (0.1\") daidaitacce, ana auna inda jagororin suka fito daga jikin fakiti.
• Flange/Tushe: Flange yana taimakawa wajen ɗora bangon waya kuma yana ba da tsayawar injiniya yayin shigarwa. Resin da aka fitar a ƙarƙashin flange shine matsakaicin 1.0mm.

5.2 Gano Polarity

An gano cathode a cikin zanen girma. Don daidaitaccen LED, cathode yawanci shine ɗan gajeren jagora da/ko jagora kusa da wuri mai lebur akan flange na fakiti. Ya kamata a duba zanen da aka bayar don ainihin alamar ganewa.

6. Jagororin Solder da Haɗawa

Sarrafa daidai yana da mahimmanci don hana lalacewa.

• Samuwar Jagora:Dole ne a yi shi kafin solder a zafin daki. Ya kamata a yi lanƙwasawa aƙalla 3mm daga gindin ruwan tabarau na LED. Kada a yi amfani da tushen leadframe azaman fulcrum.
• Haɗin PCB:Yi amfani da mafi ƙarancin ƙarfin manne don guje wa damuwa na injiniya akan jagororin.
• Solder:
  • Kiyaye mafi ƙarancin tsabta 2mm daga gindin ruwan tabarau zuwa wurin solder.
  • Kada a nutsar da ruwan tabarau a cikin solder.
  • Kada ku damu da jagororin yayin solder yayin da LED ke da zafi.
  • Solder na Hannu:Zafin ƙarfe ≤ 350°C, lokaci ≤ dakika 3 (sau ɗaya kawai).
  • Solder Wave:Pre-heat ≤ 100°C na ≤ 60 sec, solder wave ≤ 260°C, lokacin tuntuɓar ≤ 5 sec.
  • Solder reflow IR bai dace da wannan fakiti na cire rami ba.
• Tsaftacewa:Yi amfani da kaushi na barasa kamar isopropyl alcohol idan ya cancanta.
• Ajiya:Daga cikin ainihin fakitin, yi amfani da shi cikin watanni 3. Don ajiyar dogon lokaci, yi amfani da akwati mai rufewa tare da desiccant ko yanayin nitrogen. Ajiya bai kamata ya wuce 30°C da 70% zafi ba.

7. Bayanin Fakitin da Oda

• Fakitin Rukuni:Guda 1000 a kowace jakar tattarawa mai hana tashin hankali.
• Carton na Ciki:Jakunkuna 6 na tattarawa (6,000 gabaɗaya).
• Carton na Waje:Cartons na ciki 8 (48,000 gabaɗaya).
• Lambar Sashi:LTL-E7939Q3K. Rarrabuwar yana nuna: LTL (Fitila), E79 (jerin/lamba), 39 (mai yiwuwa yana da alaƙa da kusurwar dubawa ko kwandon ƙarfi), Q3K (takamaiman lambar bambance-bambance). Launin ruwan tabarau shine \"Ruwa Bayyane\" (mai haske).

8. Shawarwarin Aikace-aikace

8.1 Yanayin Aikace-aikace na Yau da Kullun

• Hasken Infrared:Don kyamarorin CCTV a cikin aikace-aikacen tsaro mara haske ko na dare.
• Canja wurin Gani & ɓoyewa:A cikin nau'in rami ko firikwensin gani mai haske don firikwensin matsayi, sarrafa saurin mota, da masu ɓoye juyawa.
• Watsa Bayanai:A cikin na'urori masu dacewa da ƙungiyar bayanai ta infrared (IrDA) ko sauƙaƙan hanyoyin haɗin bayanai na ɗan gajeren zango, yana amfani da ƙarfinsa mai sauri.
• Gano Kusanci da Abu:Tare da photodetector don gano kasancewar ko rashin wani abu.

8.2 Abubuwan da ake la'akari da ƙira

• Da'irar Tuƙi:LEDs na'urori ne masu tuƙi na halin yanzu. Don tabbatar da haske iri ɗaya, musamman lokacin haɗa LED da yawa a layi daya, ya kamata a sanya resistor mai iyakance halin yanzu a jere tare da KOWACE LED (Samfurin Da'ira A). Tuƙi LED da yawa a layi daya kai tsaye daga tushen ƙarfin lantarki tare da resistor guda ɗaya (Samfurin Da'ira B) ba a ba da shawarar ba saboda bambance-bambance a cikin ƙarfin lantarki na gaba na kowane LED (Vf), wanda ke haifar da rarraba halin yanzu mara daidaituwa da haske.
• Gudanar da Zafi:Yayin da fakitin cire rami ke watsa zafi ta hanyar jagororinsa, ya kamata a kula da shimfidar PCB da yanayin yanayi don hana zafin haɗin gwiwa ya wuce iyaka, wanda ke rage fitarwa da tsawon rai.
• Kariya ta ESD:LED yana da saukin kamuwa da fitarwa na electrostatic. Hanyoyin sarrafawa ya kamata su haɗa da amfani da igiyoyin wuyan hannu masu ƙasa, tabarma mai hana tashin hankali, da ionizers. Lalacewar ESD na iya bayyana azaman babban ɓarna na baya, ƙarancin ƙarfin lantarki na gaba, ko gazawar fitar da haske a ƙananan halin yanzu.

9. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da daidaitattun LED masu gani ko ƙananan ƙarfin LED na IR, LTL-E7939Q3K yana ba da haɗakar daidaitaccen haɗakarbabban ƙarfin radiant (20 mW/sr min)damatsakaicin, kusurwar dubawa mai mai da hankali (30°). Wannan ya sa ya fi dacewa da aikace-aikacen dogon zango ko mafi ƙarfin siginar fiye da na'urori masu faɗin kusurwa, ƙarancin wutar lantarki. Ginin AlGaAs na yau da kullun ne don fitarwa na 850nm, yana ba da inganci mai kyau. Babban abin da ya bambanta a cikin ajinsa shine ƙayyadaddun ƙayyadaddun ƙayyadaddun aiki mai sauri, yana mai da shi ɗan takara don aikace-aikacen bugun jini fiye da haske mai sauƙi.

10. Tambayoyin da ake yawan yi (Dangane da Ƙididdiga na Fasaha)

Q: Shin zan iya tuƙa wannan LED kai tsaye daga fil ɗin microcontroller na 3.3V ko 5V?

A: A'a. Dole ne ka yi amfani da resistor mai iyakance halin yanzu na jere. Misali, tare da wadata 5V, Vf=1.3V, da I da ake so_F=20mA, ƙimar resistor zata kasance R = (5V - 1.3V) / 0.02A = 185Ω. Resistor 180Ω ko 220Ω zai dace. Tuƙa shi kai tsaye zai lalata LED saboda wuce gona da iri.

Q: Me yasa ƙimar halin yanzu na bugun jini (1A) ya fi na DC (60mA) girma haka?

A> A lokacin ɗan gajeren bugun jini, zafin da aka samar a cikin haɗin gwiwar semiconductor bai sami lokacin yaduwa zuwa fakiti da muhallin da ke kewaye ba. Saboda haka, zafin haɗin gwiwa baya tashi sosai, yana ba da damar halin yanzu na nan take ba tare da haifar da lalacewar zafi ba. Tsarin aiki (300pps * 10μs = 0.3%) yana da ƙasa sosai, yana kiyaye matsakaicin wutar lantarki cikin iyaka.

Q: Ruwan tabarau \"Ruwa Bayyane\" ne. Me yasa yake fitar da hasken infrared da ba a iya gani?

A: Ruwan tabarau na epoxy mai tsabta yana bayyana ga duka tsawon raƙuman da ake iya gani da na infrared. Rashin ganin hasken wani abu ne na kayan semiconductor (AlGaAs), wanda ke fitar da photons a 850nm—tsawon raƙuman da ke waje da kewayon hankalin idon ɗan adam. Ruwan tabarau mai tsabta yawanci ana fifita shi a cikin aikace-aikacen ɓoye ko inda hasken ja mai gani (wanda aka saba da LED 660nm) ba a so.

11. Ƙirar Aiki da Shari'ar Amfani

Shari'a: Ƙirar Mai Ƙidaya Abu Mai Sauƙi ta amfani da Firikwensin Katse Katse.

Ana iya amfani da waɗannan LED na IR guda biyu tare da phototransistors masu dacewa guda biyu don ƙirƙirar firikwensin katse katse mai tashoshi biyu don ƙidaya abubuwa akan bel ɗin isar da kaya. Kowane LED ana tuƙa shi ta hanyar tushen halin yanzu na yau da kullun da aka saita zuwa 20mA ta amfani da da'irar transistor ko takamaiman IC mai tuƙa LED don tabbatar da ingantaccen ƙarfin fitarwa ba tare da la'akari da sauye-sauyen wadata ba. An sanya LED ɗin a gefe ɗaya na bel ɗin isar da kaya, kuma phototransistors a gefe guda. Lokacin da wani abu ya karya katse, fitarwar phototransistor ta canza yanayi. Kusurwar dubawa na 30° na LED tana ba da damar jurewar rashin daidaituwa yayin da yake ba da katako da aka tattara isasshe don rage magana tsakanin tashoshi biyu masu kusanci. Babban ƙarfin radiant yana tabbatar da ingantaccen siginar ya isa firikwensin, yana ba da ingantaccen rabo na siginar zuwa amo ko da a cikin muhallin da ke da ɗan hasken IR na yanayi.

12. Gabatarwar Ka'ida

LED diode semiconductor ne. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin gwiwar P-N, electrons daga kayan N-type suna sake haɗuwa da ramuka daga kayan P-type. Wannan tsarin sake haɗawa yana sakin makamashi a cikin nau'in photons (haske). Takamaiman tsawon raƙuman (launi) na hasken da aka fitar an ƙaddara shi ta hanyar bandgap na kayan semiconductor. Ga LTL-E7939Q3K, gawa na AlGaAs yana da bandgap daidai da makamashin photon na kusan 1.46 lantarki volts, wanda ke fassara zuwa haske tare da tsawon raƙuman kusa da 850 nanometers, a cikin yankin infrared. Ruwan tabarau na epoxy yana aiki don kare gawar semiconductor, siffanta tsarin fitarwa, da haɓaka fitar da haske daga guntu.

13. Trends na Ci gaba

Filin LED na infrared yana ci gaba da haɓaka. Trends sun haɗa da haɓaka na'urori tare da mafi girman ingancin bangon toshe (ƙarin fitarwa na haske a kowace watt na lantarki), wanda ke rage amfani da wutar lantarki da samar da zafi. Har ila yau, ana ci gaba da aiki don ƙara saurin daidaitawa don aikace-aikacen sadarwar bayanai mai sauri, kamar a cikin Li-Fi (Haske Aminci) ko ingantattun firikwensin gani. Ƙirƙirar fakitin yana nufin samar da ingantaccen sarrafa zafi, yana ba da damar tuƙi mafi girma da ƙarin ƙarfin gani daga ƙananan siffofi. Bugu da ƙari, haɗa LED tare da direbobi da da'irar sarrafawa cikin ingantattun sassa shine ci gaba mai girma, yana sauƙaƙa ƙirar tsarin ga masu amfani na ƙarshe. Ainihin ka'idar electroluminescence a cikin semiconductors ya kasance ba canzawa, amma kimiyyar kayan aiki da fasahar fakitin suna haifar da ci gaba mai ci gaba.