Bayanin LED na Infrared LTE-3271BL - Karfin Wuta Mai Girma - Kwalin Shudi - Tsawon Ra'ayin 940nm - Takardun Fasaha na Hausa

1. Bayanin Samfur

LTE-3271BL wata LED (Light-Emitting Diode) ce mai karfin wuta ta infrared (IR) wacce aka tsara don aikace-aikacen da ke bukatar fitar da haske mai karfi. Tsarin tsarinta na asali ya ta'allaka ne kan samar da karfin haske mai girma yayin da yake kiyaye ingancin aiki, musamman a karkashin yanayin wutar lantarki mai girma da kuma yanayin turawa bugun jini. Na'urar tana cikin wani kwalin shudi mai bayyana na musamman, wanda zai iya taimakawa wajen gano ta ta gani yayin aikin haɗawa da duba.

Kasuwowin farko da aka yi niyya don wannan sashi sun haɗa da sarrafa masana'antu, tsarin tsaro (misali, hasken kyamarar sa ido), na'urori masu auna haske (sensors), da tsarin sadarwa masu amfani da siginar infrared. Ikon sa na ɗaukar igiyoyin gaba mai kololuwa ya sa ya dace da yanayin aikin bugun jini da aka saba da shi a cikin auna nisa, gano abu, da watsa bayanai.

2. Bincike Mai Zurfi na Sigogi na Fasaha

2.1 Matsakaicin Matsakaici na Cikakke

Waɗannan ƙididdiga suna bayyana iyakokin damuwa waɗanda sama da su lalacewar dindindin na na'urar na iya faruwa. Ba a ba da shawarar aiki a ko kusa da waɗannan iyakokin na tsawon lokaci.

• Rushewar Wutar Lantarki (P_D):150 mW. Wannan shine matsakaicin adadin wutar lantarki da na'urar za ta iya watsawa a matsayin zafi a yanayin yanayi (T_A) na 25°C. Wucewa wannan iyaka yana haifar da haɗarin guduwar zafi da gazawa.
• Matsakaicin Kwararar Gaba (I_FP):2 A. Wannan shine matsakaicin kwararar gaba na nan take da aka ba da izini, wanda aka ƙayyade a ƙarƙashin yanayin bugun jini na bugun jini 300 a kowace dakika (pps) tare da faɗin bugun jini na 10 µs. Wannan ƙimar yana da mahimmanci ga aikace-aikacen IR na bugun jini kamar na'urorin sarrafa nesa ko na'urori masu gano kusanci.
• Ci gaba da Kwararar Gaba (I_F):100 mA. Matsakaicin wutar lantarki ta DC wacce za a iya amfani da ita ci gaba ba tare da wuce matakin rushewar wutar lantarki ba.
• Ƙarfin Lantarki na Baya (V_R):5 V. Yin amfani da ƙarfin lantarki na baya sama da wannan na iya haifar da rushewar haɗin gwiwa.
• Yanayin Aiki & Ajiya:-40°C zuwa +85°C da -55°C zuwa +100°C, bi da bi. Waɗannan iyakokin suna tabbatar da ingantaccen aiki a cikin yanayi mai wuya.
• Zafin Solder na Jagora:260°C na dakika 5 a nisan 1.6mm daga jikin kwalin. Wannan yana bayyana juriyar yanayin zafi yayin haɗawa.

2.2 Halayen Lantarki-Haske

Waɗannan sigogi, wanda aka auna a T_A=25°C, suna bayyana aikin na'urar a ƙarƙashin yanayin aiki na yau da kullun.

• Ƙarfin Hasken Rana (I_E):Wannan shine ainihin sigar fitarwa ta haske, wanda aka auna a cikin milliwatts kowace steradian (mW/sr). An rarraba na'urar zuwa Matsayin Binning (B, C, D, E) bisa ga wannan ƙimar a I_F= 100mA, tare da mafi ƙarancin ƙimomi daga 30 mW/sr (BIN B) zuwa 62 mW/sr (BIN E). Wannan binning yana ba da damar zaɓi bisa ga ƙarfin fitarwa da ake buƙata.
• Matsakaicin Tsawon Ra'ayin Watsawa (λ_P):940 nm. Wannan yana sanya LED a cikin bakan infrared na kusa, wanda ba a iya gani da idon ɗan adam amma ana iya gano shi ta hanyar photodiodes na silicon da yawancin na'urori masu ɗaukar hoto.
• Rabin Faɗin Layin Bakan (Δλ):50 nm (na yau da kullun). Wannan yana nuna faɗin bakan haske; ƙunƙuntaccen faɗi zai nuna tushen mafi yawan launi ɗaya.
• Ƙarfin Lantarki na Gaba (V_F):Yana da sharuɗɗa guda biyu da aka ƙayyade: 1.6V na yau da kullun a 50mA da 2.3V na yau da kullun a 500mA. Ƙaruwa tare da wutar lantarki ya samo asali ne saboda juriyar jerin ciki na diode. Ƙananan V_Fyana ba da gudummawa ga ingantaccen ingancin wutar lantarki.
• Kwararar Baya (I_R):100 µA matsakaici a V_R=5V. Wannan shine kwararar ɓarna lokacin da aka yi wa na'urar bambance-bambance na baya.
• Kusurwar Dubawa (2θ_1/2):Digiri 50 (na yau da kullun). Wannan shine cikakken kusurwar da ƙarfin hasken rana ya ragu zuwa rabin matsakaicin ƙimarsa (a kan-axis). Faɗin kusurwar dubawa yana da fa'ida ga aikace-aikacen da ke buƙatar hasken yanki mai faɗi.

3. Bayanin Tsarin Binning

LTE-3271BL tana amfani da tsarin binning na tushen aiki da farko donƘarfin Hasken Rana. Wannan wani muhimmin siffa ne na ingancin inganci da zaɓi.

• BIN B:Mafi ƙarancin Ƙarfin Hasken Rana na 30 mW/sr a I_F=100mA.
• BIN C:Mafi ƙarancin Ƙarfin Hasken Rana na 44 mW/sr a I_F=100mA.
• BIN D:Mafi ƙarancin Ƙarfin Hasken Rana na 52 mW/sr a I_F=100mA.
• BIN E:Mafi ƙarancin Ƙarfin Hasken Rana na 62 mW/sr a I_F=100mA.

Wannan tsarin yana ba masu ƙira damar zaɓar sassan da ke tabbatar da mafi ƙarancin fitarwa ta haske don aikace-aikacensu, yana tabbatar da daidaito a cikin aikin tsarin, musamman a cikin samarwa mai yawa. Babu wani binning da aka nuna don ƙarfin lantarki na gaba ko matsakaicin tsawon ra'ayi a cikin wannan takardar bayanai; ana ba da waɗannan sigogi azaman ƙimomin yau da kullun/matsakaici.

4. Bincike na Lanƙwasa Aiki

Takardar bayanai tana ba da lanƙwasa halaye da yawa waɗanda ke kwatanta halayen na'urar fiye da ƙayyadaddun sigogi na maki ɗaya da aka jera.

4.1 Rarraba Bakan (Hoto na 1)

Wannan lanƙwasa tana nuna ƙarfin hasken rana na dangi a matsayin aikin tsawon ra'ayi. Yana tabbatar da kololuwa a 940 nm da kusan rabin faɗin bakan na 50 nm. Siffar lanƙwasa ta kasance ta yau da kullun ga LED na IR na tushen AlGaAs.

4.2 Kwararar Gaba vs. Ƙarfin Lantarki na Gaba (Hoto na 3)

Wannan ita ce ainihin lanƙwasa I-V. Tana nuna alaƙar ma'auni a ƙananan wutar lantarki yana canzawa zuwa mafi kyawun alaƙar layi a manyan wutar lantarki saboda juriya na jerin. Masu ƙira suna amfani da wannan don tantance ƙarfin lantarki na turawa da ake buƙata don maƙasudin wutar lantarki ta aiki.

4.3 Kwararar Gaba vs. Yanayin Yanayi (Hoto na 2)

Wannan lanƙwasa rage ƙima yana da mahimmanci ga sarrafa zafi. Yana nuna matsakaicin kwararar gaba da aka ba da izini yana raguwa yayin da yanayin yanayi ke ƙaruwa. A 85°C, matsakaicin I_Fya yi ƙasa da ƙimar 100mA a 25°C. Rashin bin wannan lanƙwasa na iya haifar da yin zafi sosai.

4.4 Ƙarfin Hasken Rana na Dangi vs. Yanayin Yanayi (Hoto na 4) & vs. Kwararar Gaba (Hoto na 5)

Hoto na 4 yana nuna cewa fitarwa ta haske tana raguwa yayin da zafin jiki ya ƙaru (ma'auni mara kyau na zafin jiki), halin gama gari a cikin LEDs. Hoto na 5 yana nuna cewa fitarwa tana ƙaruwa da super-layin tare da wutar lantarki a ƙananan wutar lantarki, sannan yana karkata zuwa cika a manyan wutar lantarki saboda tasirin zafi da rashin inganci.

4.5 Zanen Radiation (Hoto na 6)

Wannan shafin polar yana wakiltar rarraba sararin samaniya na haske (kusurwar dubawa) ta gani. Da'irorin da'irori suna wakiltar ƙarfin dangi (daga 0 zuwa 1.0). Zanen ya tabbatar da kusan rabin kusurwar digiri 50, yana nuna tsarin haske mai santsi, mai faɗi wanda ya dace da hasken yanki.

5. Bayanin Injiniya da Kwalin

Na'urar tana amfani da daidaitaccen tsarin kwalin LED tare da flange don kwanciyar hankali na injiniya da watsa zafi.

• Nau'in Kwalin:Epoxy resin shudi mai bayyana.
• Kammala Jagora:An tsoma tin, yana ba da ingantaccen solderability.
• Marufi:Ana ba da shi a cikin fakitin ammo (tef ɗin mai ɗaukar hoto) don haɗawa ta atomatik.
• Mahimman Tolerances na Girma:Gabaɗaya girmansu suna da juriya na ±0.25mm sai dai idan an faɗi akasin haka. Ana auna tazarar jagora a wurin da jagororin suka fita daga kwalin. Ana ba da izinin tsawaitawar resin na 1.5mm a ƙarƙashin flange.
• Gano Polariti:Yawanci, dogon jagora yana nuna anode (+). Ya kamata a duba zanen takardar bayanai don tabbataccen ganewa, galibi ana nuna shi ta hanyar lebur ko tsaga akan kwalin.

6. Jagororin Solder da Haɗawa

Kula da kyau yana da mahimmanci ga aminci.

• Solder Reflow:Duk da yake ba a bayar da cikakkun bayanan bayanin martaba ba, dole ne a mutunta cikakkiyar ƙimar solder na jagora (260°C na 5s a 1.6mm daga jiki). Daidaitaccen bayanin martabar reflow mara jagora tare da matsakaicin zafin jiki ƙasa da 260°C gabaɗaya ya shafi, amma lokacin da ya wuce ruwa ya kamata a rage shi.
• Solder na Hannu:Yi amfani da ƙarfe mai sarrafa zafin jiki. A yi amfani da zafi ga jagora, ba jikin kwalin ba, kuma a kammala haɗin gwiwa cikin dakika 3.
• Hattara na ESD:Ko da yake ba a bayyana a sarari ba, LEDs na'urori ne na semiconductor kuma ya kamata a kula da su tare da matakan kariya na ESD (Electrostatic Discharge) na yau da kullun.
• Yanayin Ajiya:Ajiye a cikin kewayon zafin jiki da aka ƙayyade (-55°C zuwa +100°C) a cikin yanayi mai bushewa, mara lalata. Ya kamata a ajiye na'urori masu damuwa da danshi a cikin jakunkuna masu rufewa tare da busassun abu idan an yi niyya don solder reflow.

7. Shawarwarin Aikace-aikace

7.1 Yanayin Aikace-aikace na Yau da Kullun

• Hasken Infrared:Don kyamarorin CCTV a cikin yanayi mara haske ko babu haske. Faɗin kusurwar dubawa yana ba da ɗaukar hoto mai faɗi.
• Na'urori Masu Auna Hasken:Ana amfani da shi azaman tushen haske a cikin na'urori masu gano kusanci, ƙididdigar abu, da na'urori masu gano matakin ruwa.
• Watsa Bayanai:Ya dace don gajeriyar hanyar haɗin gwiwa ta IR ta gani (misali, na'urorin sarrafa nesa, IrDA), musamman lokacin da aka tuƙa shi a yanayin bugun jini a matsakaicin ƙimar sa na kololuwa.
• Sarrafa Masana'antu:Hasken hangen nesa na inji, gano matsayi, da masu fitar da labule na aminci.

7.2 Abubuwan Tunani na Ƙira

• Iyakancewar Wutar Lantarki:Koyaushe yi amfani da resistor mai iyakance wutar lantarki na jerin ko da'irar turawa mai tsayayye. Ƙananan ƙarfin lantarki na gaba yana nufin cewa za a iya lalata shi cikin sauƙi ta hanyar haɗa kai kai tsaye zuwa tushen wutar lantarki.
• Gudanar da Zafi:Don ci gaba da aiki a manyan wutar lantarki (misali, >70mA), yi la'akari da lanƙwasa rage ƙima (Hoto na 2). Isasshen yanki na tagulla na PCB (kushin zafi) wanda aka haɗa zuwa jagororin na iya taimakawa wajen watsa zafi.
• Turawa Bugun Jini:Don aikin bugun jini har zuwa 2A, tabbatar da cewa da'irar turawa na iya isar da matsakaicin wutar lantarki da ake buƙata tare da saurin tashi/faɗuwa. Tsarin aiki dole ne ya zama ƙasa sosai don kiyaye matsakaicin rushewar wutar lantarki cikin iyakoki.
• Ƙirar Hasken:Faɗin kusurwar dubawa na iya buƙatar ruwan tabarau ko masu haskakawa don daidaita katakon don aikace-aikacen nesa. Kwalin shudi baya tace hasken IR; yana bayyana ga 940nm.

8. Kwatancen Fasaha da Bambance-bambance

Mahimman bambance-bambancen LTE-3271BL a cikin ajinsa shine haɗin gwiwarsa naƙarfin hasken rana mai girma(har zuwa BIN E: 62 mW/sr min) daƙarfin kololuwar wutar lantarki(2A). Yawancin daidaitattun LEDs na IR suna ba da ƙananan ƙimar kololuwar wutar lantarki (misali, 1A ko ƙasa da haka). Wannan ya sa ya fi ƙarfi musamman a aikace-aikacen da ke buƙatar walƙiya mai haske, bugun jini na IR. Faɗin kusurwar dubawa na digiri 50 shima ya fi wasu masu fafatawa da aka yi niyya don katako mafi maida hankali, yana ba shi fa'ida a cikin ayyukan hasken yanki. Ƙananan ƙarfin lantarki na gaba yana ba da gudummawa ga ingantaccen ingancin wutar lantarki idan aka kwatanta da na'urori masu mafi girman V_Fa irin wannan wutar lantarki.

9. Tambayoyin da ake yawan yi (Bisa ga Sigogi na Fasaha)

Q1: Shin zan iya tuƙa wannan LED kai tsaye daga fil ɗin microcontroller na 5V?

A: A'a. Fil ɗin microcontroller yawanci yana fitar da 20-40mA. Ko da zai iya fitar da 100mA, ƙarfin lantarki na gaba na LED kusan ~1.6-2.3V ne. Haɗa shi kai tsaye zai yi ƙoƙari ya ja wutar lantarki mai yawa, yana lalata duka LED da microcontroller. Koyaushe yi amfani da da'irar turawa (transistor/MOSFET) tare da resistor mai iyakance wutar lantarki.

Q2: Menene bambanci tsakanin BIN B da BIN E?

A: BIN E yana tabbatar da aƙalla ninki biyu mafi ƙarancin ƙarfin hasken rana na BIN B (62 vs. 30 mW/sr a 100mA). Wannan yana nufin na'urar BIN E za ta samar da katakon infrared mai haske sosai a ƙarƙashin yanayin wutar lantarki iri ɗaya. Ana zaɓar sassan BIN E gabaɗaya don aikace-aikacen da ke buƙatar matsakaicin kewayon ko ƙarfin siginar.

Q3: Ta yaya zan yi amfani da ƙimar kololuwar wutar lantarki na 2A?

A: Wannan ƙimar don aikin bugun jini ne kawai (300pps, faɗin bugun jini na 10µs). Matsakaicin wutar lantarki dole ne har yanzu ya bi ƙa'idodin ci gaba da wutar lantarki da iyakokin rushewar wutar lantarki. Misali, bugun jini na 2A a 10µs da 300Hz yana da tsarin aiki na 0.3% kuma matsakaicin wutar lantarki kawai 6mA, cikin iyakoki sosai. Wannan yana ba da damar walƙiya mai haske, gajerun bugun jini don ganowa mai nisa.

Q4: Me ya sa kwalin yake shudi idan yana fitar da hasken infrared?

A: Rini shudi a cikin epoxy yana bayyana ga hasken infrared na 940nm wanda guntun semiconductor ke samarwa a ciki. Launi ne don ganewar gani da alamar ɗan adam; baya shafar tsawon ra'ayin fitarwa ta haske.

10. Misalin Amfani na Aiki

Ƙirar Mai Haskakawa Mai Nisa na Passive Infrared (PIR) Sensor:

Tsarin tsaro yana amfani da na'urar gano motsi ta PIR wacce ke da kewayon mita 15 a cikin hasken rana amma mita 5 kawai a cikin duhu gaba ɗaya. Don faɗaɗa kewayon dare, an ƙara mai haskakawa na IR.

1. Zaɓin Bangaren:An zaɓi LTE-3271BL (BIN E) saboda ƙarfin hasken rana mai girma, yana tabbatar da isasshen hasken IR ya kai abubuwa masu nisa.

2. Ƙirar Da'ira:Ana tuƙa LED ta hanyar maɓallin MOSFET wanda microcontroller na tsarin ke sarrafa shi. Resistor na jerin yana saita wutar lantarki ta ci gaba zuwa 80mA don hasken yanki na gabaɗaya. Don yanayin 'ƙarfafawa' bayan gano yuwuwar motsi, microcontroller yana buga LED a 1.5A (cikin ƙimar 2A) tare da faɗin bugun jini na 20µs da mitar 100Hz, yana ƙara haɓaka hasken nan take sosai don tabbatar da na'urar.

3. Ƙirar Zafi:PCB ta haɗa da yalwar zubar da tagulla da aka haɗa zuwa jagoran cathode na LED don zama mai sanyaya zafi, yana tabbatar da ci gaba da aiki na 80mA ya kasance cikin iyakar wutar lantarki da aka rage a matsakaicin yanayin yanayi na 60°C.

4. Sakamakon Hasken:Faɗin kusurwar dubawa na digiri 50 na LED ya rufe filin gani na na'urar da kyau, yana sake dawo da kewayon gano tsarin zuwa mita 15 da dare.

11. Ka'idar Aiki

LTE-3271BL na'urar photonic ce ta semiconductor. Lokacin da aka yi amfani da ƙarfin lantarki na gaba wanda ya wuce ƙarfinsa na haɗin gwiwa (V_F), ana allurar electrons a kan haɗin p-n. Waɗannan electrons suna sake haɗuwa tare da ramuka a cikin yanki mai aiki na kayan semiconductor (yawanci aluminum gallium arsenide - AlGaAs). Wannan tsarin sake haɗuwa yana sakin makamashi a cikin nau'in photons. Takamaiman abun da ke ciki na gawa na AlGaAs an ƙera shi ta yadda bandgap na makamashi ya dace da tsawon ra'ayin photon na kusan 940 nanometers, wanda ke cikin yankin infrared na kusa na bakan electromagnetic. Hasken da aka samar ana fitar da shi ta hanyar kwalin epoxy mai bayyana. Ƙarfin hasken rana yana da alaƙa kai tsaye da ƙimar sake haɗuwa mai ɗaukar hoto, wanda yayi daidai da wutar lantarki ta gaba (I_F).

12. Trends na Fasaha

Fasahar mai fitar da infrared tana ci gaba da haɓakawa tare da faɗaɗa trends na LED da na'urorin haske. Manyan kwatance sun haɗa da:

Ƙara Ingantaccen Aiki:Bincike ya mayar da hankali kan inganta ingancin bangon toshe (ƙarfin haske fitarwa / wutar lantarki a ciki) na LEDs na IR, rage samar da zafi da amfani da wutar lantarki don na'urori masu aiki da baturi.

Matsakaicin Ƙarfin Wutar Lantarki:Haɓaka kwalin ma'auni na guntu da kayan sarrafa zafi na ci gaba yana ba da damar samun mafi girman ƙarfin ci gaba da bugun jini daga ƙananan siffofi.

Maganganun Haɗin Kai:Akwai wani yanayi zuwa haɗa mai fitar da IR tare da IC mai turawa, photodiode, ko ma microcontroller a cikin na'ura ɗaya, yana sauƙaƙa ƙirar tsarin don na'urori masu hankali da na'urorin IoT.

Daidaituwar Tsawon Ra'ayi & Iri-iri:Duk da yake 940nm ya zama ruwan dare (kaucewa kololuwar bakan rana don rage tsangwama hasken yanayi), masu fitarwa a 850nm (sau da yawa tare da ɗan walƙiya jajayen gani) da tsayin ra'ayi mai tsayi kamar 1050nm ko 1550nm suna samun karbuwa don takamaiman aikace-aikace kamar LiDAR mai aminci da ido ko gano iskar gas. Ainihin ka'idar aiki ta kasance iri ɗaya, amma ci gaban kimiyyar kayan yana ba da damar waɗannan sabbin tsayin ra'ayi da ingantattun halaye na aiki.