Takardar Bayanin Fasaha na LED Super Red PLCC-2 - 2.0x1.25x0.8mm - Ƙarfin Wutar Lantarki 2.0V - Ƙarfin Wuta 40mW - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfurin

Wannan takarda ta yi cikakken bayani game da ƙayyadaddun fasaha na LED Super Red mai hawa a saman, mai ƙarfin haske, a cikin kunshin PLCC-2 (Plastic Leaded Chip Carrier). An tsara shi da farko don aikace-aikacen cikin mota masu ƙarfi, wannan kayan yana haɗa aiki mai dogaro da bin ka'idojin masana'antu. Girman sa mai ƙanƙanta da ƙarfin ginin sun sa ya dace da ayyukan haske masu mahimmanci a cikin dakunan mota masu ƙarancin sarari.

Babban fa'idodin LED sun haɗa da faɗin kusurwar kallo na digiri 120 don haske mai daidaito, matsakaicin ƙarfin haske na millicandelas 600 (mcd) a daidaitaccen ƙarfin lantarki na 20mA, da bin ƙa'idodin mota da muhalli masu tsauri kamar AEC-Q102, RoHS, REACH, da buƙatun marasa halogen. Wannan haɗin yana sanya shi zama zaɓi mai dogaro ga masu ƙira waɗanda ke neman tsawon rai da aiki a cikin yanayin mota.

2. Bincike Mai zurfi na Ma'auni na Fasaha

2.1 Halayen Haskakawa da Na'urar Lantarki

Mahimman ma'auni na aiki suna ayyana iyakar aikin LED. Ƙarfin lantarki na gaba (IF) yana da matsakaicin wurin aiki na 20mA, tare da mafi ƙarancin 5mA da matsakaicin matsakaicin ƙima na 50mA. A 20mA, matsakaicin ƙarfin wutar lantarki na gaba (VF) shine 2.0V, yana kewayo daga mafi ƙarancin 1.75V zuwa matsakaicin 2.75V. Wannan aikin ƙarancin wutar lantarki yana ba da gudummawar amfani da wutar lantarki mai inganci.

Ana siffanta fitarwa na farko na photometric da ƙarfin haske (IV) na mcd 600 (na al'ada), tare da mafi ƙarancin mcd 450 kuma matsakaicin ya kai mcd 1120 a ƙarƙashin daidaitaccen yanayin gwaji. Fitowar haske yana cikin bakan Super Red, tare da tsinkayar haske mai rinjaye (λd) yawanci a 630 nm, yana bambanta tsakanin 627 nm da 639 nm. Faɗin kusurwar kallo na digiri 120 (±5° tolerance) yana tabbatar da rarraba haske mai faɗi, daidai, wanda ke da mahimmanci ga hasken panel da nuni.

2.2 Ma'auni na Zafi da Matsakaicin Matsakaici

Gudanar da zafi yana da mahimmanci ga tsawon rai na LED. Na'urar tana da ƙimar juriya na zafi guda biyu: ainihin juriya na zafi (Rth JS real) na 160 K/W (max) da juriya na zafi na lantarki (Rth JS el) na 125 K/W (max). Waɗannan ƙimar suna nuna hawan zafi a kowace watt na wutar da aka tarwatsa daga haɗin zuwa wurin solder.

Matsakaicin matsakaicin ƙima yana ayyana iyakokin aiki waɗanda ba dole ba ne a wuce don hana lalacewa na dindindin. Matsakaicin tarwatsewar wutar lantarki (Pd) shine 137 mW. Na'urar na iya jure ƙarfin lantarki mai ƙarfi (IFM) na 100 mA don bugun jini ≤ 10 μs tare da ƙaramin aikin aiki (0.005). Yanayin zafi na haɗin (TJ) bai kamata ya wuce 125°C ba, yayin da kewayon yanayin aiki da ajiya ya ƙayyade daga -40°C zuwa +110°C, yana tabbatar da dacewarsa don aikace-aikacen mota. Hanzarin ESD (HBM) an ƙididdige shi a 2 kV.

3. Bincike na Lankwasa Ayyuka

3.1 Alakar Tsarin Haske da ƙarfin Lantarki

Grafin rarraba bakan dangi yana nuna ƙunƙuntaccen lankwasa mai fitarwa mai tsakiya a kusa da 630 nm, wanda ke da halayen LED ja mai tsabta. Ƙarfin lantarki na gaba da ƙarfin wutar lantarki na gaba (IF-VF) lankwasa yana nuna halayen diode na ma'auni. Graf na ƙarfin haske na dangi da ƙarfin lantarki na gaba yana nuna kusan haɓakar fitarwa na haske tare da ƙarfin lantarki har zuwa matsakaicin maki 20mA, tare da jinkirin jujjuyawa a manyan ƙarfin lantarki saboda ƙarin tasirin zafi.

3.2 Dogaro da Yanayin Zafi

Aiki dangane da zafi shine mahimmin abin la'akari na ƙira. Graf na ƙarfin haske na dangi da yanayin zafi na haɗin yana nuna alaƙa mara kyau; yayin da zafi ya ƙaru, fitarwa na haske yana raguwa. Wannan shine halayen al'ada ga LEDs. Akasin haka, ƙarfin wutar lantarki na gaba yana nuna ƙimar zafi mara kyau, yana raguwa a layi daya yayin da yanayin zafi na haɗin ya tashi. Tsinkayar haske mai rinjaye kuma tana canzawa tare da zafi, yawanci yana ƙaruwa (ja canzawa) yayin da haɗin ya yi zafi. Waɗannan lankwasan suna da mahimmanci don ƙirar da'irori tare da ramuwa na zafi don kiyaye haske da launi iri ɗaya.

3.3 Ragewa da Aikin Bugun Jini

Lankwasa rage ƙarfin lantarki na gaba yana da mahimmanci ga dogaro. Yana ƙayyade matsakaicin ƙarfin lantarki na gaba na ci gaba da yarda bisa yanayin zafi na gindin solder (TS). Misali, a yanayin zafi na gindin solder na 110°C, matsakaicin ƙarfin lantarki na ci gaba da yarda shine 35mA. Graf kuma ya ƙayyade mafi ƙarancin ƙarfin lantarki na aiki na 5mA. Teburin iyawar ɗaukar bugun jini da aka yarda yana ba da jagora don aikin bugun jini, yana nuna ƙarfin bugun jini mai iyaka don faɗin bugun jini daban-daban da zagayowar aiki, wanda ke da amfani don aikace-aikacen multiplexing ko PWM dimming.

4. Bayanin Tsarin Rarraba

An rarraba LED zuwa kwandon binne bisa mahimman ma'auni guda uku don tabbatar da daidaito a cikin ayyukan samarwa da don daidaita ƙira.

4.1 Rarraba Ƙarfin Haskakawa

An rarraba ƙarfin haske zuwa kwandon binne na haruffa daga L1 (11.2-14 mcd) har zuwa GA (18000-22400 mcd). Ga wannan takamaiman lambar sashi (65-21-SR0200H-AM), an haskaka kwandon binne mai yuwuwa kuma suna cikin kewayon U1 (450-560 mcd) da U2 (560-710 mcd), suna daidaitawa da ƙayyadaddun mcd 600 na al'ada. Wannan yana ba masu ƙira damar zaɓar sassa tare da ƙarancin ƙarfin haske idan an buƙata.

4.2 Rarraba Tsawon Tsinkayar Haske

An rarraba tsinkayar haske mai rinjaye ta amfani da lambar lambobi huɗu. Kwandon binne sun ƙunshi bakan fadi daga 459 nm zuwa 639 nm. An haskaka kwandon binne masu dacewa don wannan LED Super Red a cikin kewayon 627-639 nm, musamman suna rufe lambobin 2730 (627-630 nm), 3033 (630-633 nm), 3336 (633-636 nm), da 3639 (636-639 nm). Wannan yana tabbatar da daidaiton launi a cikin batutuwan samarwa daban-daban.

4.3 Rarraba Ƙarfin Wutar Lantarki na Gaba

An rarraba ƙarfin wutar lantarki na gaba ta amfani da lambar lambobi huɗu wanda ke wakiltar mafi ƙarancin ƙarfin wutar lantarki da matsakaici a cikin kashi goma na volt. Kwandon binne suna kewayo daga 1012 (1.00-1.25V) zuwa 2730 (2.70-3.00V). Ga wannan LED tare da na al'adaVFna 2.0V, kwandon binne masu dacewa suna iya zama 1720 (1.75-2.00V) da 2022 (2.00-2.25V). Daidaita kwandon binne na ƙarfin wutar lantarki na iya sauƙaƙa ƙirar da'irar iyakancewa na ƙarfin lantarki a cikin layi masu layi.

5. Bayanin Injiniya da Kunshin

An sanya LED a cikin daidaitaccen kunshin PLCC-2 mai hawa a saman. Zanen injiniya (wanda aka nuna ta sashin "Girman Injiniya") zai kasance yawanci yana nuna kunshin tare da jagora biyu a ɓangarori daban-daban. Mahimman girma sun haɗa da tsayin gabaɗaya, faɗi, da tsayi, tazarar jagora, da girman/matsayin ruwan tabarau da aka ƙera. An tsara kunshin don dacewa da sarrafa kayan aikin sarrafa kai da reflow solder da ake amfani da su a cikin samar da na'urorin lantarki masu yawa.

6. Jagororin Solder da Haɗawa

6.1 Bayanin Yanayin Solder na Reflow

Takardar bayanin ta ƙayyade yanayin zafi na solder reflow na 260°C matsakaici don dakika 30. Wannan yana nufin matsakaicin zafi da aka auna a jagora/hadaddun solder. Za a ba da shawarar bayanin reflow yawanci, yana zayyana matakan dumama, jiƙa, reflow, da sanyaya don hana girgizar zafi da tabbatar da haɗin solder mai dogaro ba tare da lalata tsarin ciki na LED ko ruwan tabarau na epoxy ba.

6.2 Tsarin Gindin Solder da Ake Shawarta

An ba da shawarar gindin solder don tabbatar da ingantaccen kwanciyar hankali na injiniya da samuwar fillet na solder. Wannan ƙirar gindin tana inganta ƙarfin haɗin solder da hanyar canja wurin zafi daga gindin zafi na LED (idan akwai) ko jagora zuwa allon da'ira (PCB). Bin wannan shimfidar yana da mahimmanci don yawan samarwa da dogon lokaci na dogaro.

6.3 Abubuwan da Ya Kamata a Kula da su

Abubuwan da ya kamata a kula da su gabaɗaya sun haɗa da guje wa amfani da kayan aiki masu kaifi yayin sarrafawa don hana lalata ruwan tabarau ko jagora. Ya kamata a adana shi a cikin yanayi mai bushewa, anti-static kamar yadda ake ƙididdige matakin hankali na MSL (Moisture Sensitivity Level) 3, wanda ke buƙatar gasa abubuwan idan an fallasa su ga yanayin muhalli fiye da rayuwarsu kafin reflow solder. Hakanan ya kamata a guji fallasa kai tsaye ga hasken UV mai ƙarfi ko wasu sinadarai.

7. Shawarwari na Aikace-aikace

7.1 Yanayin Aikace-aikace na Al'ada

Kamar yadda aka nuna a cikin PDF, aikace-aikacen farko shineHasken Cikin Mota. Wannan ya haɗa da haske don maɓallan dashboard, ƙofofin ƙofa, alamun canza gear, sarrafa tsarin sauti, da hasken yanayi. Aikace-aikacen mahimmanci na biyu shineClusterhaske, yana nufin gungu na kayan aiki ko ma'aunin dashboard, inda ake buƙatar daidaitaccen hasken baya mai dogaro don gumaka, allura, da alamun gargaɗi.

7.2 Abubuwan da Ya Kamata a Yi la'akari da su Lokacin Ɗauki

Lokacin ƙira tare da wannan LED, yi la'akari da waɗannan: Koyaushe yi amfani da resistor mai iyakancewa na jerin ko direba mai ƙarfin lantarki don saita ƙarfin lantarki na gaba, yawanci a 20mA don haske na al'ada. Yi la'akari da kwandon binne na ƙarfin wutar lantarki na gaba da juriyarsa lokacin ƙididdige ƙimar resistor ko ƙarfin fitarwa na direba. Yi la'akari da sarrafa zafi, musamman a cikin wuraren da aka rufe ko manyan yanayin zafi; yi amfani da lankwasa ragewa don daidaita matsakaicin ƙarfin lantarki na tuƙi. Don haske iri ɗaya a cikin LEDs da yawa, zaɓi abubuwan da aka haɗa daga kwandon binne na ƙarfin haske da tsinkayar haske iri ɗaya ko kusa. Faɗin kusurwar kallo yana rage buƙatar na'urorin gani na biyu a yawancin aikace-aikacen haske masu watsewa.

8. Kwatancen Fasaha da Bambanci

Idan aka kwatanta da LEDs na PLCC-2 na gabaɗaya marasa mota, mahimman bambance-bambancen wannan ɓangaren shine cancantarsa ta yau da kullun. Cancantar AEC-Q102 tana nuna cewa ya wuce jerin gwaje-gwajen damuwa da aka ayyana don na'urorin gani na daban-daban a cikin aikace-aikacen mota, gami da rayuwar aiki mai zafi, zagayowar zafi, da juriya ga ɗanɗano. Ƙimar Ƙarfin Lalata Class B1 tana nuna ƙarin juriya ga iskar gas mai lalata kamar sulfur, wanda zai iya kasancewa a wasu yanayin mota. Haɗin faɗin kusurwar kallo na digiri 120 da matsakaicin ƙarfi na 600mcd yana ba da daidaiton haske da tarwatsawa mai kyau don aikace-aikacen ciki.

9. Tambayoyin da Ake Yawan Tambaya (Dangane da Ma'auni na Fasaha)

Q: Shin zan iya tuƙa wannan LED a 30mA don ƙarin haske?

A: Duk da yake matsakaicin matsakaicin ƙima shine 50mA, matsakaicin ƙarfin lantarki na aiki shine 20mA. Tuƙawa a 30mA yana yiwuwa amma zai ƙara yanayin zafi na haɗin kuma zai ƙara raguwar lumen. Dole ne ku tuntubi lankwasa ragewa dangane da yanayin zafi na gindin solder na aikace-aikacen ku don tabbatar da yanayin zafi na haɗin ya kasance ƙasa da 125°C.

Q: Menene bambanci tsakanin ainihin juriya na zafi da na lantarki?

A: Ainihin juriya na zafi (Rth JS real) ana auna shi ta amfani da na'urar firikwensin zafi na zahiri. Juriya na zafi na lantarki (Rth JS el) ana ƙididdige shi ta amfani da ƙimar zafi na ƙarfin wutar lantarki na gaba na LED. Don dalilai na ƙira, ya kamata a yi amfani da ƙimar mafi ra'ayin mazan jiya (mafi girma), 160 K/W a wannan yanayin, don binciken zafi mafi muni.

Q: Shin diode na kariya na baya yana da mahimmanci?

A: Takardar bayanin ta ce na'urar "Ba a tsara ta don aikin baya ba." Yin amfani da ƙarfin wutar lantarki na baya na iya lalata shi. A cikin da'irori inda ƙarfin wutar lantarki na baya zai yiwu (misali, a cikin yanayin zubar da kaya na mota), ana ba da shawarar kariya ta waje kamar diode na jerin ko diode na TVS.

10. Misalin Ɗauki na Aiki

Yi la'akari da ƙirar hasken baya don allon sarrafa yanayi na mota tare da alamomi iri ɗaya 10. Kowane alama yana amfani da LED ɗaya. Ƙarfin wutar lantarki shine tsarin mota na 12V na al'ada. Don tabbatar da tsawon rai, ƙirar tana nufin yanayin zafi na gindin solder na 85°C matsakaici. Daga lankwasa ragewa, a 85°C, matsakaicin ƙarfin lantarki na ci gaba da yarda shine kusan 45mA. Zaɓin wurin aiki mai aminci na 15mA a kowane LED yana ba da gefe kuma yana rage damuwa na zafi. Tare da na al'adaVFna 2.0V, ƙimar resistor na jerin da ake buƙata don kowane LED akan wadataccen 12V shine (12V - 2.0V) / 0.015A = 667 Ω (yi amfani da ƙimar daidaitaccen 680 Ω). Tarwatsewar wutar lantarki a kowane resistor shine (10V)^2 / 680Ω ≈ 0.147W, don haka resistor 1/4W ya isa. Don tabbatar da daidaiton launi da haske, ƙayyade LEDs daga kwandon binne na ƙarfin haske iri ɗaya (misali, U1) da kwandon binne na tsinkayar haske mai rinjaye (misali, 2730) yayin saye.

11. Ka'idar Aiki

Wannan shine diode mai fitar da haske (LED), na'urar haɗin p-n semiconductor. Lokacin da aka yi amfani da ƙarfin wutar lantarki na gaba wanda ya wuce ƙarfin da aka gina a cikin haɗin, ana shigar da electrons da ramuka a kan haɗin. Yayin da waɗannan masu ɗaukar caji suka sake haɗuwa, ana sakin makamashi a cikin nau'in photons (haske). Takamaiman abun da ke ciki na yadudduka na semiconductor (yawanci bisa Aluminum Gallium Arsenide - AlGaAs don LEDs ja) yana ƙayyade tsawon zango (launi) na hasken da aka fitar. Kunshin PLCC-2 yana ɗauke da guntun semiconductor, yana ba da kariya ta injiniya, yana haɗa ruwan tabarau na epoxy da aka ƙera wanda ke siffanta fitarwa na haske don cimma kusurwar kallo na digiri 120, kuma yana ba da jagora don haɗin lantarki da tarwatsa zafi.

12. Trends na Masana'antu

Trend a cikin hasken cikin mota yana ci gaba zuwa ga haɗin kai mafi girma, sarrafawa mai hankali, da inganta ƙwarewar mai amfani. Ana ƙara amfani da LEDs ba kawai don aiki ba amma don yanayi da alama. Wannan yana haifar da buƙatar LEDs tare da inganci mafi girma (ƙarin lumens a kowace watt), ƙarancin launi da ƙarfin haske don kamanni iri ɗaya, da ingantattun ma'auni na dogaro don dacewa da garanti na mota mai tsayi. Hakanan akwai haɗin kai na LEDs tare da direbobi ko ICs na sarrafawa (kamar iC-LEDs) don sauƙaƙe ƙirar da'ira da ba da damar ƙwarewar ci gaba kamar adireshin mutum ɗaya don tasirin haske mai ƙarfi. Bangaren da aka bayyana a nan, tare da cancantarsa na mota da aiki mai daidaito, ya dace da tushen tushen wannan yanayin da ke ci gaba, yana samar da ingantaccen tushen haske na asali don tsarin haske mai sauƙi da rikitarwa.