Takaddun ƙayyadaddun LED - Girman 1.6x0.8x0.4mm - ƙarfin Lantarki 2.6-3.5V - Wutar 0.105W - Hasken Fari - Takaddun Fasaha

1. Bayanin Samfura

Wannan takaddar tana ba da cikakken bayanin fasaha na ƙaramin LED na fari wanda aka tsara don aikace-aikacen fasahar hawa sama (SMT). Samfurin yana da halayen ƙaramin matsayi da faɓin kusurwar kallo, wanda ya sa ya dace da ƙirar lantarki masu ƙunci na sarari waɓanda ke buƙatar ingantaccen alamar gani.

1.1 Matsayin Samfura da Fa'idolin Tushe

LED yana matsayin kayan aiki na alama na gama-gari mai inganci. Fa'idolinsa na tushe sun samo asali ne daga ƙaramin girman fakitin sa na 1.6mm x 0.8mm x 0.4mm, wanda ke ba da damar yin shirye-shiryen PCB masu yawa. Na'urar tana da faɓin kusurwar kallo na digiri 140 (na al'ada), yana tabbatar da ganuwa daga mahanga daban-daban. Yana cikakken biyayya ga hanyoyin haɓa SMT na al'ada, gami da sayar da reflow, kuma yana bin ka'idojin muhalli na RoHS. Matakin hankali na damshi an ƙididdige shi a MSL 3, yana nuna halayen gudanarwa masu ƙarfi ga yawancin wuraren masana'antu.

1.2 Kasuwar da Ake Nufi

Manyan kasuwannin da ake nufi sun haɓa da na'urorin lantarki na mabukaci, sarrafa masana'antu, hasken ciki na mota, da kuma na'urori na gabaɓaya. Aikace-aikacen takamaiman sun faɓaɓi, sun haɓa da hasken baya ga maɓalli da alamomi, alamomin yanayi akan na'urori daban-daban, da kuma hasken gabaɓaya a cikin allunan nunawa inda ƙaramin girman da fitar da haske ke da muhimmanci.

2. Bincike Mai Zurfi na Ma'aunin Fasaha

Sasannin da ke gaba suna ba da cikakken rarraba na mahimman ma'auni na lantarki, na gani, da na zafi da aka ƙayyade don wannan LED, wanda aka auna a daidaitaccen yanayin haɓin haɓin 25°C.

2.1 Halayen Hoto da Lantarki

An ƙayyade ƙarfin haske a cikin ƙarfin lantarki na gaba (I_F) na 5mA. An raba shi zuwa kewayon da yawa, wanda aka nuna da lambobi kamar 1AP (90-120 mcd), G20 (120-150 mcd), 1AW (150-200 mcd), 1AX (200-250 mcd), da 1AY (250-300 mcd). Wannan rabon yana ba masu ƙira damar zaɓen LEDs tare da matakan haske masu daidaito don kamanni iri ɓaya a cikin aikace-aikacen LED da yawa. Tsawon raɓin da ke rinjaye da launi ana samun su ta hanyar amfani da ƙwayar LED shuɓi da aka haɓa da murfin phosphor don samar da hasken fari, tare da takamaiman ma'auni na launi da aka ayyana a cikin tsarin rabon.

2.2 Ma'auni na Lantarki

ƙarfin lantarki na gaba (V_F) ma'auni ne mai mahimmanci wanda ke shafar ƙirar samar da wutar lantarki. A I_F=5mA, V_Fana raba shi a hankali zuwa kewayon goma daga F1 (2.6-2.7V) zuwa J1 (3.4-3.5V). Wannan ƙayyadaddun rabon ƙarfin lantarki yana sauƙaƙe daidaitawar ƙarfin lantarki a cikin da'irori na jerin ko layi daya. An tabbatar da ƙarfin lantarki na baya (I_R) zai zama matsakaicin 10 µA a ƙarfin lantarki na baya (V_R) na 5V, yana nuna kyakkyawan halayen diode da kariya daga ƙananan bambance-bambancen baya. Matsakaicin ma'auni na cikakken yana ayyana iyakokin aiki: madaidaicin ƙarfin lantarki na gaba na 30mA, ƙarfin bugun bugun 60mA (a ƙarƙashin yanayi takamaiman), da matsakaicin ɓarkewar wutar 105mW.

2.3 Halayen Zafi

Gudanar da zafi yana da mahimmanci ga dogon rayuwar LED da kwanciyar hankali na aiki. Juriyar zafi daga haɓin haɓin zuwa wurin solder (R_θJ-S) an ƙayyade shi azaman 450 °C/W (na al'ada). Wannan darajar tana ƙididdige yadda ake canja zafi daga haɓin haɓin semiconductor zuwa PCB. Matsakaicin yanayin zafi na haɓin haɓin da aka halatta (T_J) shine 95°C. Wucewa wannan zafin na iya haifar da saurin raguwar fitar da haske da rage rayuwar aiki. An ƙayyade kewayon zafin aiki da ajiya daga -40°C zuwa +85°C, yana tabbatar da inganci a cikin mawuyacin yanayi.

3. Bayanin Tsarin Raba

Don tabbatar da daidaiton launi da haske a cikin samarwa, ana rarraba LEDs bisa mahimman ma'auni.

3.1 Raba ƙarfin Lantarki na Gaba

Kamar yadda aka ambata, an raba ƙarfin lantarki na gaba zuwa rukuni goma daban-daban (F1, F2, G1, G2, H1, H2, I1, I2, J1, J2). Masu ƙira za su iya amfani da wannan bayanin don rarraba LEDs tare da V_Fmai kama lokacin ƙirar da'irori na turawa na akai-akai, yana rage rashin daidaiton ƙarfin lantarki a cikin layukan layi daya.

3.2 Raba Fitowar Hasken

An raba ƙarfin haske zuwa manyan rukuni biyar (1AP, G20, 1AW, 1AX, 1AY). Wannan yana ba da damar zaɓen LEDs tare da daidaitaccen haske, wanda yake da mahimmanci ga aikace-aikace kamar jerin alamomi ko igiyoyin hasken baya inda daidaiton gani ke da mahimmanci.

3.3 Raba Ma'aunin Launi

An ayyana launin hasken fari a cikin zane na chromaticity na CIE 1931. Takaddun yana ba da lambobin rabon (misali, B3a, B3b, B4a, B4b, da sauransu) tare da jerin ma'auni na (x, y) waɓanda ke ayyana yanki na huɓu a kan ginshiƙin chromaticity. LEDs da suka faɓi cikin waɓannan yankuna suna da daidaitaccen zafin launin fari da launi. Wannan rabon yana da mahimmanci ga aikace-aikacen da ke buƙatar daidaitaccen daidaitawar launi, kamar a cikin nunin LED da yawa ko alamomin yanayi inda fahimtar launi ke da mahimmanci.

4. Bincike na Lanƙwabin Aiki

Yayin da PDF yana nuni ga lanƙwabin halayen gani na al'ada, ba a haɓa takamaiman zane-zane a cikin rubutun da aka bayar ba. Duk da haka, bisa ga bayanan da aka jera, zamu iya fahimtar sauye-sauyen aiki na al'ada.

4.1 Lanƙwabin Halayen IV

Lanƙwabin ƙarfin lantarki na gaba na LED na al'ada (I-V) zai nuna dangantaka mai yawa. Rabe-raben ƙarfin lantarki na gaba yana nuna ƙananan bambance-bambance a cikin ƙarfin lantarki na kunna a cikin raka'o'in samarwa daban-daban. Lanƙwabin zai nuna cewa sama da ƙarfin lantarki na kunna (kusan 2.6V), ƙarfin lantarki yana ƙaru da sauri tare da ƙaramin ƙaru a cikin ƙarfin lantarki, yana nuna wajibcin da'irar iyakancewar ƙarfin lantarki a cikin ƙira na zahiri.

4.2 Dogaro da Yanayin Zafi

Aikin LED yana da hankali ga yanayin zafi. Yawanci, ƙarfin lantarki na gaba yana raguwa tare da ƙaruwar yanayin zafi na haɓin haɓin (coefficient mara kyau na zafi), yayin da fitar da haske shima yana raguwa. An ƙayyade matsakaicin yanayin zafi na haɓin haɓin na 95°C da darajar juriyar zafi sune mahimman don yin samfuri na wannan dogaro. Dole ne masu ƙira su tabbatar da isasshen yanki na tagulla na PCB ko wasu hanyoyin sanyaya don kiyaye T_Ja cikin iyakoki masu lafiya don mafi kyawun fitar da haske da dogon rayuwa.

4.3 Rarraba Bakan

A matsayin LED na fari da aka canza phosphor, rarraba ƙarfin bakan zai ƙunshi babban kololuwa daga ƙwayar LED shuɓi (yawanci kusan 450-460nm) da kuma faɓin kololuwa na biyu a cikin yankin rawaya-kore wanda phosphor ke fitarwa. Haɓuwar yana haifar da hasken fari. Takamaiman siffar bakan da Temperature Color Correlation (CCT) ana sarrafa su ta hanyar abun da ke cikin phosphor kuma ana nuna su a cikin bayanan rabon ma'auni na launi da aka bayar.

5. Bayanin Injiniya da Marufi

5.1 Girman Fakitin

An saka LED a cikin ƙaramin fakitin hawa sama tare da girman gabaɓaya na 1.60mm (L) ± 0.20mm x 0.80mm (W) ± 0.20mm x 0.40mm (H). Cikakkun zane-zane na injiniya sun nuna saman, gefe, da ra'ayoyin ƙasa. Ra'ayin ƙasa yana nuna sarai manyan tashoshi biyu na anode da cathode, waɓanda ke da mahimmanci don ingantaccen ƙirar matakin PCB.

5.2 Ƙirar Pad da Gano Polarity

An ba da tsarin pad na solder da aka ba da shawara a cikin takardun. Girman pad yawanci shine 0.80mm x 0.80mm ga kowane tashoshi tare da tazara na 0.80mm tsakanin su. Bin wannan shawarar yana tabbatar da ingantaccen samuwar haɓin solder da kwanciyar hankali na injiniya yayin reflow. An yiwa polarity alama a sarai akan kayan aikin da kanta; yawanci, gefen cathode ana iya nuna shi ta hanyar tsaga, ƙwaro, ko alamar kore kamar yadda zane ya nuna. Daidaitaccen alkibla yana da mahimmanci ga aikin da'ira.

6. Jagororin Solder da Haɓawa

6.1 Ma'auni na Solder Reflow SMT

Samfurin ya dace da duk hanyoyin haɓa SMT na al'ada. Yayin da ba a bayyana takamaiman ma'auni na bayanin reflow (dumi, jiƙa, kololuwar zafin reflow, sanyaya) a cikin abin da aka ciro ba, daidaitattun bayanan reflow maras gubar (RoHS) tare da kololuwar zafin yawanci ba ya wuce 260°C suna aiki. Matakin hankali na damshi na 3 yana buƙatar a gasa kayan aikin idan an fallasa su ga yanayin yanayi na tsawon lokaci fiye da lokacin da aka ƙayyade (yawanci sa'o'i 168) kafin reflow don hana fashewar popcorn yayin solder.

6.2 Kula da Gudanarwa da Yanayin Ajiya

Ya kamata a kiyaye matakan kariya na ESD (Electrostatic Discharge) na al'ada yayin gudanarwa, saboda na'urar tana da juriyar ESD na 1000V (HBM). Ya kamata a adana kayan aikin a cikin fakitin su na asali mai hana damshi a yanayin zafi tsakanin -40°C da +85°C kuma a cikin damshin dangi ƙasa da matakin da aka ƙayyade don MSL 3. Kauracewa matsin lamba na injiniya akan ruwan tabarau na LED yayin sanyawa ko tsaftacewa.

7. Bayanin Marufi da Oda

7.1 Ƙayyadaddun Marufi

Ana ba da LEDs a cikin tef ɗin ɗaukar kaya da aka yi wa ado a kan reels, wanda shine ma'auni don injinan zaɓe da sanyawa na SMT ta atomatik. Ƙayyadaddun ya haɓa da cikakkun ma'auni don aljihun tef ɗin ɗaukar kaya da reel da kanta don tabbatar da dacewa da masu ciyarwa. Wannan hanyar marufi tana kare kayan aikin daga lalacewa ta jiki da gurƙata yayin jigilar kaya da haɓawa.

7.2 Ƙayyadaddun Lakabi

Lakabin reels sun ƙunshi mahimman bayanai don gano abin da ya faru da amfani daidai, gami da lambar sashi, lambobin rabon don ƙarfin lantarki da ƙarfin haske, adadi, lambar kwanan wata, da lambar kuri'a. Fahimtar wannan lakabin yana da mahimmanci don sarrafa kaya da tabbatar da an yi amfani da bambance-bambancen kayan aikin daidai a cikin samarwa.

8. Shawarwarin Aikace-aikace

8.1 Yanayin Aikace-aikace na Al'ada

Wannan LED ya dace da kyau don:

• Alamomin Gani:Matsayin wutar lantarki, matakin baturi, ko alamomin yanayin aiki a cikin na'urorin da ake ɗauka, na'urorin gida, da kayan aikin masana'antu.
• Hasken Baya na Maɓalli da Alama:Hasken maɓallai, maɓallan maɓalli, ko alamomin zane a kan allunan sarrafawa don haɓaka ganuwa a cikin yanayi mara kyau.
• Hasken Baya na Nunawa:A matsayin tushen haske ga ƙananan nunin da aka raba ko matrix inda ake buƙatar haske mai daidaito, mai yaduwa.
• Hasken Kayan Ado na Gabaɓaya:Hasken fa'ida maras ƙarfi a cikin kayayyakin mabukaci.

8.2 Abubuwan Tunani na Ƙira

Mahimman abubuwan ƙira sun haɓa da:

• Turawa na ƙarfin Lantarki:Koyaushe yi amfani da direban ƙarfin lantarki na akai-akai ko na'urar iyakancewar ƙarfin lantarki a cikin jerin tare da LED. Ya kamata a ƙididdige darajar bisa ga ƙarfin lantarki na gaba da ake so (ba ya wuce 30mA akai-akai) da kuma rabon ƙarfin lantarki na gaba na LED da aka zaɓa.
• Gudanar da Zafi:Don ci gaba da aiki a ƙarfin lantarki mafi girma, yi la'akari da hanyar zafi. Yi amfani da isasshen yanki na tagulla akan PCB ƙarƙashin da kewaye da pads na LED don zama mai sanyaya, yana kiyaye yanayin zafi na haɓin haɓin ƙasa da 95°C.
• Ƙirar Gani:Faɓin kusurwar kallo na digiri 140 yana ba da tsarin haske mai yaduwa. Don ƙarin hasken da aka nufa, ana iya buƙatar ruwan tabarau na waje ko jagororin haske. Ƙaramin girman yana ba da damar haɓawa cikin ƙunƙoshin sarari.

9. Kwatancen Fasaha

9.1 Fa'idolin Banbanci

Idan aka kwatanta da sauran ƙananan LEDs a kasuwa, abubuwan banbanci na wannan samfurin sun haɓa da haɓuwar faɓin kusurwar kallo tare da ƙaramin girman fakitin 1608 (1.6x0.8mm). Yawancin abokan hamayya suna ba da girman iri ɓaya amma tare da ƙunƙataccen kusurwar kallo. Cikakken da faɓaɓin rabon don duka ƙarfin lantarki da ƙarfin haske yana ba da matakin daidaito mafi girma don aikace-aikace masu ƙarfi, yana rage buƙatar daidaitawa bayan samarwa ko da'irori na daidaitawar haske. Matsayinsa na MSL 3 yana ba da mafi kyawun juriya ga damshi fiye da wasu ƙananan ƙwayoyin LED da aka ƙididdige MSL 5 ko 6, yana sauƙaƙe hanyoyin ajiya da gudanarwa.

10. Tambayoyin da Ake Yi Akai-akai

10.1 Tambayoyi na Gabaɓaya Dangane da Ma'auni na Fasaha

Q: Menene manufar rabon ƙarfin lantarki na gaba (V_F) da yawa?

A: V_Frabon yana ba masu ƙira damar zaɓen LEDs tare da halayen lantarki kusan iri ɓaya. Lokacin haɓa LEDs a layi daya, yin amfani da raka'o'i daga V_Frabon ɓaya yana rage rashin daidaiton ƙarfin lantarki, yana tabbatar da daidaiton haske da hana LED ɗaya daƙe ƙarfin lantarki da yin zafi sosai.

Q: Ta yaya zan zaɓi rabon ƙarfin haske daidai?

A: Zaɓi rabon bisa ga ƙarfin haske da ake buƙata don aikace-aikacenku. Don yanayin haske na muhalli mai girma, ƙarin rabon (misali, 1AY) na iya zama dole. Don alamomi marasa ƙarfi ko na cikin gida, ƙananan rabon (misali, 1AP) na iya isa, mai yuwuwa ya ajiye wutar lantarki. Yin amfani da rabon guda ɓaya a cikin samfurin yana tabbatar da daidaiton gani.

Q: Matsakaicin yanayin zafi na haɓin haɓin shine 95°C. Shin yana da lafiya yin aiki akai-akai a wannan zafin?

A: Yayin da na'urar za ta iya jure 95°C, ci gaba da aiki a matsakaicin yanayin zafi na haɓin haɓin zai ƙara haifar da raguwar LED, yana rage fitar da haske a kan lokaci (ragewar lumen). Don dogon lokaci na inganci, yana da kyau a ƙira tsarin don kiyaye T_Jsosai ƙasa, mafi kyau ƙasa da 70-80°C a ƙarƙashin yanayi mafi muni.

11. Lamuran Amfani na Aiki

11.1 Misalan Ƙira da Aikace-aikace

Case 1: Panel Button Multi-Legend:Panel na sarrafawa don injinan masana'antu yana amfani da 20 daga cikin waɓannan LEDs don hasken baya ga labarun maɓallai daban-daban. Ta hanyar ƙayyade LEDs daga rabon ƙarfin haske iri ɓaya (misali, 1AW) da ƙunƙataccen rabon ƙarfin lantarki na gaba (misali, G1), mai ƙira zai iya amfani da darajar resistor na iyakancewar ƙarfin lantarki guda ɓaya don duk LEDs da aka haɓa a layi daya, yana samun daidaitaccen haske a fadin panel ba tare da hadaddun lantarki na turawa ba.

Case 2: Alamar Yanayi na Na'urar Sawa:A cikin ƙaramin na'urar bin sawun motsa jiki, ana amfani da LED guda ɓaya na wannan nau'in azaman alamar caji da sanarwa. Ƙaramin matakin 1.6x0.8mm ya dace cikin ƙunƙataccen sararin ciki. Faɓin kusurwar kallo yana tabbatar da ana ganin haske ko da lokacin da aka saka na'urar a wuyan hannu a kusurwoyi daban-daban. Ƙaramin ƙarfin lantarki na aiki (5-10mA) yana rage tasiri akan rayuwar baturi.

12. Gabatarwar Ka'idar Aiki

12.1 Bayanin Maƙasudin Fasahar LED

Light Emitting Diode wata na'urar semiconductor ce wacce ke fitar da haske lokacin da ƙarfin lantarki ya wuce ta. Wannan al'amari, da ake kira electroluminescence, yana faruwa lokacin da electrons suka haɓu tare da ramukan electron a cikin na'urar, suna sakin makamashi a cikin siffar photons. Launin haske yana ƙayyade ta hanyar tazarar band na makamashi na kayan semiconductor. Wannan takamaiman samfurin LED ne na fari, wanda galibi ana haifar da shi ta hanyar haɓa ƙwayar LED shuɓi tare da murfin phosphor rawaya. Hasken shuɓi daga ƙwayar yana ƙara phosphor, yana sa ya fitar da hasken rawaya. Haɓuwar hasken shuɓi da rawaya idon mutum yana ganin shi azaman fari. Wannan hanyar tana da inganci kuma tana ba da damar daidaita zafin launin fari ta hanyar daidaita abun da ke cikin phosphor.

13. Sauran Ci Gaba

13.1 Bayanin Maƙasudin Sauran Masana'antar LED

Masana'antar LED tana ci gaba da bunkasa zuwa mafi inganci (fiye da lumens kowace watt), ƙananan girman fakitin, da ingantacciyar bayyanar launi. Don alamomi da ƙananan hasken haske, sauye-sauyen sun haɓa da:

• Ƙaruwar Haɓawa:Haɓa ƙwayoyin LED da yawa ko haɓa ICs na sarrafawa cikin fakitin.
• Ingantaccen Inganci:Inganta kayan aiki da marufi don jure yanayin zafi mafi girma da mawuyacin yanayi, musamman don amfanin mota da masana'antu.
• Daidaiton Launi:Ci gaba a cikin fasahar phosphor da hanyoyin rabon don ba da ƙunƙataccen izinin launi kai tsaye daga samarwa, yana rage farashin ga masu amfani na ƙarshe waɓanda ke buƙatar daidaitaccen daidaitawar launi.
• Substrates Mai Sassauƙa da Na Al'ada:Ci gaban LEDs waɓanda za a iya sanyawa akan PCBs masu sassauƙa ko lanƙwashe, suna buɓe sabbin yuwuwar ƙira. Duk da yake wannan takamaiman bangaren wani bangare ne na SMT na tsayayye na al'ada, yana wakiltar ci gaba da rage girman wanda ke ba da damar waɓannan sauye-sauye masu faɓi.