Takardar Bayanin Fasaha na LED Mai Matsakaicin Ƙarfi na SMD 67-21S - Kunshin PLCC-2 - Far Red 720-750nm - 60mA 135mW

1. Bayanin Samfur

Wannan takarda ta yi cikakken bayani game da ƙayyadaddun bayanai na na'urar LED mai matsakaicin ƙarfi da ake haɗawa a saman (SMD) a cikin kunshin PLCC-2. Na'urar tana amfani da guntu na AIGaInP don fitar da haske a cikin bakan Far Red, wanda ya sa ta dace da aikace-aikacen haske na musamman fiye da hasken gabaɗaya. Ƙananan girmanta, faɗin kusurwar gani, da bin ƙa'idodin muhalli (babu gubar, RoHS) sune mahimman fasali.

1.1 Fa'idodi na Asali da Kasuwar Da Ake Nufi

Babban fa'idodin wannan LED sun haɗa da ingantaccen aiki na ajin ƙarfinta da faɗin kusurwar gani na digiri 120, wanda ke tabbatar da rarraba haske mai faɗi da daidaito. Ƙaramin kunshin PLCC-2 yana sauƙaƙa haɗa ƙira cikin nau'ikan fitilun haske daban-daban. Kasuwannin da ake nufi suna da ƙwarewa sosai, suna mai da hankali kan aikace-aikace inda ake buƙatar takamaiman bakan haske, kamar hasken ado don ƙirƙirar tasirin yanayi, hasken nishadi don dandali da ɗakin studio, da kuma ƙara yawan amfani, hasken noma inda aka san tsayin raƙuman Far Red yana tasiri ga ilimin halittar shuka, photomorphogenesis, da martawar furanni.

2. Zurfin Binciken Ma'auni na Fasaha

2.1 Ƙididdiga Mafi Girma Na Gabaɗaya

Waɗannan ƙididdiga suna ayyana iyakokin aiki wanda bayansu lalacewa na dindindin na iya faruwa. An ƙididdige na'urar don ci gaba da ƙarar lantarki na gaba (I_F) na 60 mA, tare da ƙarar lantarki mafi girma na gaba (I_FP) na 120 mA da aka halatta a ƙarƙashin yanayin bugun jini (duty cycle 1/10, faɗin bugun 10ms). Mafi girman ƙarfin da ake ɓata (P_d) shine 135 mW. Kewayon zafin aiki daga -40°C zuwa +85°C ne, tare da ɗan faɗin kewayon zafin ajiya daga -40°C zuwa +100°C. Juriyar zafi daga haɗin gwiwa zuwa wurin gyaɗa (R_{th J-S}) an ƙayyade shi azaman 50 °C/W, wanda yana da mahimmanci ga ƙirar sarrafa zafi. Matsakaicin zafin haɗin gwiwar da aka halatta (T_j) shine 115°C. An ba da jagororin gyaɗa: gyaɗa ta sake kwarara a 260°C na dakika 10 ko gyaɗa ta hannu a 350°C na dakika 3. Wani mahimmin bayanin ya jaddada hankalin na'urar ga zubar da lantarki na electrostatic (ESD), yana buƙatar daidaitattun hanyoyin sarrafawa.

2.2 Halayen Lantarki da Hasken Gani

Ana auna waɗannan ma'auni a ƙarƙashin daidaitattun yanayin gwaji (zafin wurin gyaɗa = 25°C, I_F= 60mA). Ma'aunin aiki mai mahimmanci shine Ƙarfin Radiometric (Iv), wanda ya bambanta daga mafi ƙanƙanta 15 mW zuwa mafi girma 50 mW, tare da ƙimar al'ada da ake nufi a cikin wannan kewayon da ƙimar kuskure na ±11%. Ƙarfin lantarki na gaba (V_F) ya bambanta daga 1.5V zuwa 2.2V tare da ƙimar kuskure na ±0.1V. Kusurwar gani (2θ_1/2) yawanci digiri 120 ne. Ƙarfin lantarki na baya (I_R) an ƙayyade shi da matsakaicin 1.5 µA a ƙarfin lantarki na baya (V_R) na 5V.

3. Bayanin Tsarin Rarrabuwa

Don tabbatar da daidaito da ba da damar zaɓi daidai, ana rarraba LED ɗin cikin kwandon rufi bisa mahimman ma'auni.

3.1 Kwandon Rufe na Ƙarfin Radiometric

Ana rarraba fitar da Radiometric cikin kwandon rufi mai lakabin A3 har zuwa B2. Kwandon rufi A3 ya ƙunshi 15-20 mW, A4 ya ƙunshi 20-25 mW, A5 ya ƙunshi 25-30 mW, B1 ya ƙunshi 30-40 mW, kuma B2 ya ƙunshi 40-50 mW, duk an auna su a I_F=60mA.

3.2 Kwandon Rufe na Ƙarfin Lantarki Na Gaba

Ana rarraba ƙarfin lantarki na gaba cikin matakan 0.1V. Lambobin kwandon rufi 22 zuwa 28 sun dace da kewayon ƙarfin lantarki daga 1.5-1.6V har zuwa 2.1-2.2V, bi da bi (a I_F=60mA).

3.3 Kwandon Rufe na Tsayin Raƙuman Mafi Girma

Wannan muhimmin kwandon rufi ne don aikace-aikacen bakan haske. Ana rarraba fitar da Far Red ta tsayin raƙuman mafi girma: FA3 (720-730 nm), FA4 (730-740 nm), da FA5 (740-750 nm). Ƙimar kuskuren aunawa don tsayin raƙuman da ya fi rinjaye/mafi girma shine ±1nm.

4. Binciken Jadawalin Aiki

Takardar bayanin ta ba da jadawali da yawa da ke kwatanta halayen na'urar a ƙarƙashin yanayi daban-daban.

4.1 Rarraba Bakan Hasken

Jadawalin bakan yana nuna ƙarfin haske mai alaƙa a tsawon raƙuman raƙuman daga kusan 645nm zuwa 795nm, tare da kololuwar da ta fi fice a yankin Far Red (720-750nm), yana tabbatar da halayen fitar da guntu na AIGaInP.

4.2 Halayen Zafi da Lantarki

Hoto na 1: Canjin Ƙarfin Lantarki Na Gaba vs. Zafin Haɗin Gwiwayana nuna cewa V_Fyana raguwa a layi daya yayin da zafin haɗin gwiwa (T_j) ya karu daga 25°C zuwa 115°C, wani hali ne na al'ada ga haɗin gwiwar semiconductor.

Hoto na 2: Ƙarfin Radiometric Mai Alaƙa vs. Ƙarfin Lantarki Na Gabayana nuna alaƙar da ke ƙasa da layi tsakanin ƙarfin tuƙi da fitar da haske, yana nuna raguwar inganci a manyan ƙarfin lantarki.

Hoto na 3: Ƙarfin Hasken Gani Mai Alaƙa vs. Zafin Haɗin Gwiwayana zana daidaitaccen fitar da haske akan T_j, yana nuna raguwar inganci yayin da zafin jiki ya tashi, yana nuna mahimmancin sarrafa zafi.

Hoto na 4: Ƙarfin Lantarki Na Gaba vs. Ƙarfin Lantarki Na Gaba (Lankwaran I-V)yana kwatanta halayen diode na asali a 25°C.

Hoto na 5: Matsakaicin Ƙarfin Lantarki Na Gaba Na Tuƙi vs. Zafin Gyaɗalankwaran rage ƙimar ƙima ne, yana nuna cewa dole ne a rage matsakaicin ƙarfin lantarki na aiki mai aminci yayin da zafin yanayi/wurin gyaɗa ya karu, bisa ga R da aka bayar_{th j-s}na 50°C/W.

Hoto na 6: Jadawalin Radiationzane ne na polar da ke kwatanta rarraba ƙarfin sarari, yana tabbatar da faɗin tsarin fitarwa mai kama da Lambertian.

5. Bayanin Injiniya da Kunshi

5.1 Girman Kunshi

An ba da cikakken zanen girma mai ma'auni na kunshin PLCC-2. Muhimman girma sun haɗa da tsayin gabaɗaya da faɗi, girman da matsayin ramin guntu na LED, da wuraren kushin anode/cathode. Zanen ya ƙayyade daidaitaccen ƙimar kuskure na ±0.1 mm sai dai idan an faɗi akasin haka. Kunshin yana amfani da resin mai tsabta kamar ruwa.

6. Jagororin Gyaɗa da Haɗawa

Ƙididdiga mafi girma na gabaɗaya sun ƙayyade yanayin gyaɗa: 260°C na dakika 10 don sake kwarara ko 350°C na dakika 3 don gyaɗa ta hannu. Sashen \"Abubuwan Kariya Don Amfani\" ya ba da shawarar sosai don amfani da resistors masu iyakancewa ƙarfin lantarki a jere tare da LED, saboda halayen I-V na diode na nuna cewa ƙaramin canjin ƙarfin lantarki zai iya haifar da babban haɓakar ƙarfin lantarki mai yuwuwar lalacewa. Don ajiya, yana da mahimmanci kada a buɗe jakar shinge mai hana danshi har sai an shirya abubuwan don amfani a cikin layin samarwa don hana shan danshi, wanda zai iya haifar da \"popcorning\" yayin gyaɗa ta sake kwarara.

7. Bayanin Kunshi da Oda

7.1 Ƙayyadaddun Kunshi

Ana samar da LED ɗin akan tef da reel masu hana danshi. An ƙayyade girman tef ɗin mai ɗaukar kaya, yana riƙe da guda 4000 a kowace reel. An haɗa cikakkun zane don reel da tef ɗin mai ɗaukar kaya, tare da daidaitattun ƙimar kuskure na ±0.1mm. Tsarin shiryawa ya haɗa da sanya reel a cikin jakar aluminum mai hana danshi tare da abin bushewa da lakabin bayani.

7.2 Bayanin Lakabi

Lakabin reel ya haɗa da filayen: Lambar Samfur na Abokin Ciniki (CPN), Lambar Samfur (P/N), Adadin Shirye-shirye (QTY), Matsayin Ƙarfin Hasken Gani (CAT), Matsayin Tsayin Raƙuman da Ya Fi Rinjaye (HUE), Matsayin Ƙarfin Lantarki Na Gaba (REF), da Lambar Rukuni (LOT No).

8. Shawarwari na Aikace-aikace

8.1 Yanayin Aikace-aikace Na Al'ada

• Hasken Ado da Nishadi:Ana amfani dashi don ƙirƙirar hasken yanayi mai zurfin ja, ƙayyadaddun gine-gine, ko tasiri na musamman a cikin saitin dandali da studio.
• Hasken Noma:Wannan muhimmin aikace-aikace ne. Hasken Far Red (700-750nm) yana hulɗa tare da mai karɓar hasken shuka phytochrome, yana tasiri ga tsiron iri, guje wa inuwa, da furanni. Sau da yawa ana amfani dashi tare da LED ɗin ja da shuɗi a cikin tsarin hasken gandun daji don inganta girma da ci gaban shuka.
• Amfani Gabaɗaya:Ko da yake ana kiransa \"gabaɗaya,\" wannan yana iya nufin fitilun nuni ko fitilun matsayi inda ake son takamaiman launin ja, ko da yake bakan Far Red ba ya da yawa ga ma'auni na al'ada.

8.2 Abubuwan Tunani na Ƙira

Dole ne masu ƙira su aiwatar da ingantaccen tuƙi na lantarki na yau da kullun ko amfani da resistor a jere don hana wuce gona da iri. Sarrafa zafi yana da mahimmanci; juriyar zafi na 50 °C/W tana buƙatar ingantacciyar hanyar zafi daga kushin gyaɗa zuwa mai sanyaya zafi ko zubar da tagulla na PCB don kiyaye ƙananan zafin haɗin gwiwa da tabbatar da amincin dogon lokaci da kwanciyar hankali na fitar da haske. Dole ne a yi la'akari da faɗin kusurwar gani don ƙirar gani don cimma tsarin katako da ake so.

9. Aminci da Gwaji

An zayyana cikakken tsarin gwajin amincin, wanda aka gudanar da matakin amincewa na 90% da 10% Lot Tolerance Percent Defective (LTPD). Gwaje-gwaje sun haɗa da: Juriya ga Zafin Gyaɗa, Kewayon Zafin Jiki (-40°C zuwa +100°C), Rayuwar Zafi/ɗanɗano (85°C/85% RH), Rayuwar Ƙananan Zafi (-40°C), Rayuwar Babban Zafi (60°C da 85°C), Kewayon Kunnawa/Kashe, Girgizar Zafi, da Kewayon Zafin Ƙarfi. Kowane gwaji yana da takamaiman yanayi, tsawon lokaci (har zuwa sa'o'i 3000), girman samfurori (guda 8), da ma'auni na karɓa (ba a yarda da gazawa 0 ba, gazawa 1 ta ƙi rukunin).

10. Kwatancen Fasaha da Bambanci

Idan aka kwatanta da daidaitattun LED masu matsakaicin ƙarfi a cikin kunshin PLCC-2 iri ɗaya (wanda sau da yawa ake amfani dashi don farin haske), babban bambancin wannan na'urar shine takamaiman kayan semiconductor na AIGaInP da ke fitarwa a cikin bakan Far Red. Yayin da daidaitattun LED ɗin na iya amfani da InGaN don shuɗi/kore ko AlGaInP don ja/amber na al'ada, wannan takamaiman tsayin raƙuman da ake nufi (720-750nm) yana dacewa da aikace-aikacen halitta da na ado. An inganta ma'aunin aikin sa (inganci, ƙarfin lantarki) don wannan yanki na bakan.

11. Tambayoyin da Ake Yawan Yi (Dangane da Ma'auni na Fasaha)

Tambaya: Me yasa resistor mai iyakancewa ƙarfin lantarki ya zama dole?

A: Ƙarfin lantarki na gaba na LED yana da ƙimar zafi mara kyau da ƙimar kuskuren masana'antu. Ba tare da resistor ba, ƙaramin haɓakar ƙarfin wadata ko raguwar V_Fsaboda dumama zai iya haifar da haɓakar ƙarfin lantarki a cikin ƙima, wanda zai wuce matsakaicin ƙididdiga na gabaɗaya kuma ya lalata na'urar.

Tambaya: Ta yaya zan fassara lambobin kwandon rufi a cikin lambar sashi?

A: Lambar sashi mai yiwuwa tana ɓoye takamaiman kwandon rufi don Ƙarfin Radiometric (misali, A3, B2), Ƙarfin Lantarki Na Gaba (misali, 22, 28), da Tsayin Raƙuman Mafi Girma (misali, FA4) wanda takamaiman rukunin da aka oda ya cika, yana tabbatar da cewa kuna karɓar LED ɗin tare da halaye masu matsewa.

Tambaya: Zan iya tuƙa wannan LED a ƙarfin lantarki mafi girma (120mA) akai-akai?

A: A'a. Ƙimar ƙarfin lantarki mafi girma na gaba don aikin bugun jini ne kawai (duty cycle 1/10, faɗin bugun 10ms). Aikin ci gaba dole ne bai wuce ƙimar ƙarfin lantarki na gaba na 60mA ba, la'akari da rage ƙimar da Hoto na 5 ya buƙata a manyan yanayin zafi.

12: Misalin Amfani Mai Amfani

Yanayi: Ƙirar ƙarin ƙirar haske don tarkon noma a tsaye wanda ke girma furanni masu hankali ga photoperiod.

Manufar ƙira ita ce samar da ɗan gajeren fashewar hasken Far Red a ƙarshen lokacin hasken yau da kullun don haɓaka furanni. Za a shimfiɗa jerin waɗannan LED ɗin akan PCB na ƙarfe-core (MCPCB) don mafi kyawun zubar da zafi. Za a yi amfani da direban LED na lantarki na yau da kullun da aka saita zuwa 60mA a kowane layi. Faɗin kusurwar gani na digiri 120 yana tabbatar da shiga cikin alfarwa mai kyau ba tare da hadaddun na'urorin gani na biyu ba. Za a zaɓi takamaiman kwandon rufi na tsayin raƙuman (misali, FA4 don 730-740nm) bisa ga martawar phytochrome na nau'in shuka da ake nufi. Za a tsara na'urar don kunna na mintuna 15 bayan manyan fitilun farin haske sun kashe.

13. Ƙa'idar Aiki

Wannan LED diode ne na photodiode na semiconductor da ake aiki a cikin nuna son ra'ayi na gaba. Lokacin da aka yi amfani da ƙarfin lantarki wanda ya wuce ƙarfin lantarki na gaba (1.5-2.2V), ana shigar da electrons da ramuka cikin yankin aiki daga nau'ikan semiconductor na n-type da p-type, bi da bi. A cikin yankin aiki da aka yi da AIGaInP (Aluminum Gallium Indium Phosphide), waɗannan masu ɗaukar caji suna sake haɗuwa. Wani muhimmin ɓangare na wannan taron sake haɗuwa yana sakin makamashi a cikin nau'in photons (haske) ta hanyar tsarin da ake kira electroluminescence. Takamaiman makamashin bandgap na gami na AIGaInP yana ƙayyade tsayin raƙuman photons ɗin da aka fitar, wanda a wannan yanayin yana cikin ɓangaren Far Red na bakan (720-750 nm).

14. Trends na Fasaha

Amfani da LED masu ƙunƙuntaccen band, masu takamaiman tsayin raƙuman kamar wannan na'urar Far Red wani yunkuri ne mai girma a fagagen haske marasa gabaɗaya. A cikin gandun daji, bincike yana haifar da \" girke-girken haske\" ta amfani da daidaitattun haɗuwa da shuɗi, ja, far-red, da kuma wani lokacin kore ko tsayin raƙuman UV don inganta halayen shuka daban-daban (saurin girma, ilimin halittar jiki, abun ciki na gina jiki, furanni). Wannan yana ƙara buƙatar ingantacciyar, amintacciyar LED a cikin waɗannan takamaiman rukunin bakan. Bugu da ƙari, ci gaban a cikin epitaxy na semiconductor yana ba da damar ƙara matse tsayin raƙuman binning da mafi girman inganci a waɗannan tsayin raƙuman dogon lokaci, waɗanda a tarihi sun kasance masu ƙalubale. Haɗa irin waɗannan LED ɗin tare da na'urori masu hankali da sarrafawa don tsarin haske mai daidaitawa yana wakiltar mahimmin alkibla na ci gaba.