LED Ja PLCC4 3.5x2.8x1.85mm - 2.0-2.6V Wutar Gaba - 70mA - 615nm Tsawon Tagarfi Mai Rinjaye - Bayanin Fasaha

1. Bayani Kan Samfurin

Wannan takardar tana bayar da cikakken bayanin fasaha na LED ja mai ƙarfi (samfurin RF-OMRA30TS-BM-G) da aka ƙera don amfani a haskoki na ciki da na waje na motoci. LED ɗin yana da ƙaramin fakitin PLCC4 mai girman 3.50 mm × 2.80 mm × 1.85 mm kuma an gina shi bisa ci-gaba ta fasahar AlGaInP (Aluminum Gallium Indium Phosphide). Yana ba da haske mai ƙarfi, kusurwar kallo mai fadi, da aikin zafi mai kyau, wanda ya sa ya dace da mawuyacin yanayi na motoci. Na'urar ta bi umarnin RoHS da REACH kuma ta cika buƙatun cancantar AEC-Q101 don na'urorin da ke cikin motoci.

2. Bincike Mai Zurfi Kan Sigogin Fasaha

Ana bayyana halayen lantarki da na gani a yanayin gwaji na IF = 50 mA da zafin solder Ts = 25 °C. Duk ma'auni an yi su a ƙarƙashin yanayin dakin gwaje-gwaje na daidaitaccen tare da iyakokin da aka ambata.

2.1 Wutar Gaba (VF)

Wutar gaba tana daga 2.0 V (mafi ƙanƙanta) zuwa 2.6 V (mafi girma) tare da darajar yawanci ta 2.2 V a 50 mA. Wannan ƙananan wutar gaba yana ba da damar canza wuta mai inganci kuma yana rage ɓataccen zafi. Iyakokin ma'auni shine ±0.1 V. Lokacin tsara da'irori, ya kamata a haɗa resistors a jere don daidaita wuta a kan bambancin wutar lantarki.

2.2 Ƙarfin Haske (IV)

Ƙarfin haske yana daga 2300 mcd (mafi ƙanƙanta) zuwa 4300 mcd (mafi girma) tare da darajar yawanci ta 2900 mcd a 50 mA. Wannan babban matakin haske an cimma shi ta hanyar tsarin AlGaInP da ingantaccen haske ja mara phosphor. Iyakokin ma'auni shine ±10%. An rarraba ƙarfin haske zuwa rukuni uku: N2 (2300–2800 mcd), O1 (2800–3500 mcd), da O2 (3500–4300 mcd).

2.3 Tsawon Tagarfi Mai Rinjaye (Wd)

Tsawon tagarfi mai rinjaye yana daga 612.5 nm (mafi ƙanƙanta) zuwa 620 nm (mafi girma) tare da darajar yawanci ta 615 nm a 50 mA. Wannan ya yi daidai da launi ja mai zurfi. An rarraba tsawon tagarfi zuwa rukuni uku: C2 (612.5–615 nm), D1 (615–617.5 nm), da D2 (617.5–620 nm). Iyakokin ma'auni shine ±0.005 a cikin haɗin launi.

2.4 Halayen Zafi

Juriyar zafi daga haɗin gwiwa zuwa wurin solder (RTHJ-S) yawanci shine 180 °C/W (mafi girma). Mafi girman zafin haɗin gwiwa shine 120 °C. Gudanar da zafi mai kyau yana da mahimmanci don kiyaye dogaro; ya kamata a rage wutar gaba bisa ga zafin solder don hana wuce gona da iri na zafin haɗin gwiwa. Kewayon zafin aiki na yanayi shine -40 °C zuwa +100 °C, kuma kewayon zafin adana shi ne iri ɗaya. Ana ba da kariya daga wutar lantarki mai tsauri har zuwa 2000 V (HBM).

3. Bayanin Tsarin Rarraba

Don tabbatar da daidaito a cikin aiki, an rarraba LED ɗin zuwa rukuni bisa ga wutar gaba, ƙarfin haske, da tsawon tagarfi mai rinjaye a IF = 50 mA.

• Rukunin Wutar Gaba:C1 (2.0–2.1 V), C2 (2.1–2.2 V), D1 (2.2–2.3 V), D2 (2.3–2.4 V), E1 (2.4–2.5 V), E2 (2.5–2.6 V)
• Rukunin Ƙarfin Haske:N2 (2300–2800 mcd), O1 (2800–3500 mcd), O2 (3500–4300 mcd)
• Rukunin Tsawon Tagarfi:C2 (612.5–615 nm), D1 (615–617.5 nm), D2 (617.5–620 nm)

Abokan ciniki na iya ƙayyade haɗin rukuni yayin yin oda don saduwa da ainihin buƙatun aikace-aikace.

4. Binciken Ƙirar Aiki

Ƙirar halayen gani na yau da kullun suna ba da haske game da halayen LED ɗin a ƙarƙashin yanayi daban-daban na aiki.

• Wutar Gaba vs. Gudun Wutar Gaba (Hoto 1-7):Wutar gaba tana ƙaruwa da matsakaici tare da gudun wuta, daga kimanin 1.9 V a 10 mA zuwa 2.4 V a 70 mA. Wannan dangantakar da ba ta daidai ba ita ce ta al'ada na diodes na semiconductor.
• Gudun Wutar Gaba vs. Ƙarfin Haske na Dangantaka (Hoto 1-8):Ƙarfin haske na dangantaka yana ƙaruwa kusan daidai da gudun wutar gaba har zuwa 70 mA, yana nuna kyakkyawan ingancin canjin wuta zuwa haske.
• Zafin Solder vs. Ƙarfin Haske na Dangantaka (Hoto 1-9):Yayin da zafin solder ya tashi daga 20 °C zuwa 120 °C, ƙarfin haske na dangantaka yana raguwa da kusan 30%, yana nuna buƙatar kula da zafi.
• Zafin Solder vs. Gudun Wutar Gaba (Hoto 1-10):Dole ne a rage mafi girman gudun wutar gaba a mafi girman zafin solder don guje wa wuce gona da iri na zafin haɗin gwiwa na 120 °C.
• Wutar Gaba vs. Zafin Solder (Hoto 1-11):Wutar gaba tana raguwa kadan tare da ƙaruwar zafin jiki, kusan -2 mV/°C.
• Tsarin Rarraba Hasken (Hoto 1-12):Kusurwar kallo (2θ1/2) tana da digiri 120, tana ba da rarraba haske mai fadi da daidaitacce wanda ya dace da haskoki na yanki.
• Gudun Wutar Gaba vs. Tsawon Tagarfi Mai Rinjaye (Hoto 1-13):Tsawon tagarfi mai rinjaye yana canzawa kadan zuwa mafi tsayin dabi'u yayin da gudun wuta ya ƙaru, kusan +0.03 nm kowace mA.
• Rarraba Bakan (Hoto 1-14):Kololuwar bakan tana kewaye da 615–620 nm tare da ƙaramin cikakken nisa a rabin mafi girman (FWHM), halayyar LED ja AlGaInP.

5. Bayanin Injiniya da Marufi

5.1 Girman Fakitin

LED ɗin yana cikin fakitin PLCC4 mai girman 3.50 mm (tsayi) × 2.80 mm (faɗi) × 1.85 mm (tsawo). Duban sama yana nuna alamar polarity a bayyane. Duban ƙasa yana nuna tashoshi huɗu: pin 1 (cathode) wanda aka gane ta hanyar kusurwa mai karkata, da pins 2, 3, da 4 (anode da sauran haɗin). Duk girma suna da iyakokin ±0.2 mm sai dai in an faɗi akasin haka.

5.2 Tsarin Pad ɗin Solder

An ba da girman tsarin kasa na PCB (pads na solder) da aka ba da shawarar: 2.60 mm × 1.60 mm don gefen anode da 4.60 mm × 0.80 mm don gefen cathode. Tsarin pad mai kyau yana tabbatar da samuwar haɗin solder mai dogaro da ɓata zafi.

5.3 Gane Polarity

Ana nuna polarity ta hanyar kirtani ko karkata a jikin fakitin. Pin 1 shine cathode (C) kuma pins 2, 3, 4 sune anode (A). Polarity mara daidai na iya lalata LED ɗin; koyaushe tabbatar da alkibla kafin solder.

6. Jagororin Solder da Haɗuwa

6.1 Bayanin Solder na Reflow

Bayanin solder na reflow da aka ba da shawarar yana bin ƙa'idodin JEDEC. Mahimman sigogi sun haɗa da: preheat daga 150 °C zuwa 200 °C na daƙiƙa 60-120, haɓaka zuwa 217 °C (liquidus) a cikin daƙiƙa 60 mafi girma, mafi girman zafin jiki 260 °C na daƙiƙa 10 mafi girma, da sanyaya a 6 °C/s mafi girma. An yarda da zagayowar reflow guda biyu kawai. Idan fiye da sa'o'i 24 suka shuɗe tsakanin zagayowar, LED ɗin na iya ɗaukar danshi kuma suna buƙatar gasa kafin reflow na biyu.

6.2 Solder da gyara da hannu

Don solder da hannu, yi amfani da ƙarfen solder wanda aka saita ƙasa da 300 °C kuma kammala aikin a cikin daƙiƙa 3. An yarda da aikin solder da hannu guda ɗaya kawai. Ba a ba da shawarar gyara bayan reflow ba; idan ya zama dole, yi amfani da ƙarfen solder mai kai biyu kuma tabbatar da aikin LED ɗin.

6.3 Taka Tsanani Lokacin Mu'amala

Silicone encapsulant yana da laushi kuma ana iya lalacewa ta hanyar matsi mai yawa. Yi amfani da nozzles masu ɗauka da sanyawa masu dacewa tare da ƙarfi mai sarrafawa. Ka guji lanƙwasa PCB bayan solder. Kada ka yi amfani da damuwa na inji ko girgiza yayin sanyaya. An haramta sanyaya da sauri (quenching) bayan reflow.

7. Bayanin Marufi da Oda

7.1 Tape ɗin Jigilar Kaya da Reel

Ana ba da LED ɗin akan tape ɗin jigilar kaya mai faɗin 8 mm tare da nau'in 4 mm. Kowane reel yana ƙunshe da raka'a 2,000. Tape ɗin yana da murfin tape da aka cire daga sama. Girman reel: diamita 330 ±1 mm, diamita hub 100 ±1 mm, da faɗi 13.0 ±0.5 mm.

7.2 Marufin Kariyar Danshi

An rufe reels ɗin a cikin jaka mai kariyar danshi (MBB) tare da katin nuna danshi da desiccant. Matsayin rashin lafiyar danshi (MSL) shine Level 2 (rayuwar bene > shekara 1 a ≤30 °C/≤75% RH, amma ana ba da shawarar amfani a cikin sa'o'i 24 bayan buɗewa). Idan jaka ta lalace ko kuma yanayin adana ya wuce, ana buƙatar gasa a 60 ±5 °C na > sa'o'i 24 kafin amfani.

7.3 Bayanin Label

Kowane reel yana ɗauke da label tare da lambar sashi, lambar ƙayyadaddun bayanai, lambar lot, lambar rukuni (ciki har da wutar gaba, ƙarfin haske, da rukunin tsawon tagarfi), adadi, da lambar kwanan wata. Tsarin label yana bin aikin masana'antu na yau da kullun.

8. Shawarwarin Aikace-aikace

LED ɗin an yi shi ne don haskoki na motoci - duka na ciki (dashboard, haskoki na yanayi) da na waje (haskoki na baya, fitilun juyi, fitilun birki). Kusurwar kallo mai faɗi 120° tana da amfani ga aikace-aikacen sigina inda ake buƙatar rarraba haske daidai. Lokacin tsara shirye-shiryen layi, tabbatar da isasshen kula da zafi ta hanyar amfani da PCBs masu tushen ƙarfe ko masu zafi. Ya kamata a haɗa resistors masu iyakance wuta a cikin sassan layi don hana gudun wuta mai haɗari. Na'urar kuma ta dace da fitilun nuni na gaba ɗaya da haskoki na ado inda ake buƙatar haske mai ƙarfi da dogaro.

9. Kwatanta Fasaha

Idan aka kwatanta da LEDs ja na al'ada na through-hole, wannan fakitin PLCC4 yana ba da fa'idodi masu mahimmanci: ƙaramin ɗaukar wuri, jituwa tare da haɗuwa ta atomatik na SMT, kusurwar kallo mai fadi, da tsarin haske mai daidaitacce. Kayan AlGaInP yana ba da ingantaccen haske mai inganci da kwanciyar hankali na zafi fiye da tsoffin fasahohin GaAsP. Bugu da ƙari, cancantar AEC-Q101 tana tabbatar da aiki mai ƙarfi a ƙarƙashin mawuyacin yanayi na motoci (girgiza, danshi, canjin yanayi).

10. Tambayoyin da Akai-akai

Tambaya: Menene shawarar gudun wuta don tsawon rayuwa?

Amsa: Don ingantaccen dogaro, yi aiki a 50 mA na yau da kullun. Mafi girman gudun wutar gaba shine 70 mA (DC) ko 100 mA kololuwa (1/10 na zagayowar aiki, 10 ms bugun jini). Ƙananan gudun wuta yana rage tsawon rayuwa saboda ƙaruwar zafin haɗin gwiwa.

Tambaya: Zan iya amfani da wannan LED ɗin a jere da wasu?

Amsa: Ee, amma tabbatar da cewa jimlar wutar gaba ta wuce wutar lantarki. Yi amfani da resistor a jere don iyakance wuta. Saboda rarraba wutar gaba, sassan layi na layi daya na iya buƙatar resistors daban don daidaita wuta.

Tambaya: Yaya zan tsaftace LED ɗin bayan solder?

Amsa: Yi amfani da barasa isopropyl. Ka guji tsaftacewa da sauti, wanda zai iya lalata haɗin waya na ciki. Kada ka yi amfani da abubuwan da za su iya lalata silicone encapsulant.

Tambaya: Wane kariya na ESD ne ya zama dole?

Amsa: LED ɗin na iya jure 2000 V HBM, amma ana buƙatar kariya daga ESD yayin mu'amala. Yi amfani da wuraren aiki masu ƙasa, ionizers, da marufi anti-static.

11. Misalan Aikace-aikace na Aiki

Hasken Baya na Mota:Shirin layi na LEDs 10-20 da aka sanya akan PCB tare da zafi mai zafi yana ba da haske ja mai haske da daidaitaccen haske na tsayawa/baya. Kusurwar kallo mai fadi tana tabbatar da cika buƙatun ganuwa na ECE R7. Cancantar AEC-Q101 tana ba masu kera motoci amincewa a cikin dogaro na dogon lokaci.

Hasken Yanayi na Ciki:LED guda ɗaya da aka watsa ta hanyar jagorar haske yana ba da haske ja mai laushi don haska dashboard. Ƙaramin fakitin yana ba da damar haɗuwa cikin panel ɗin bakin.

Nunin Matsayi na Masana'antu:Ƙarfin haske mai yawa ya sa ya dace da alamomin waje da fitilun matsayi. Kusurwar haske 120° tana kawar da buƙatar na'urorin gani na biyu a cikin aikace-aikace da yawa.

12. Ka'idar Aiki

Wannan LED ja yana dogara ne akan tsarin AlGaInP (Aluminum Gallium Indium Phosphide) mai yawan rijiyoyin kuzari (MQW). Lokacin da aka yi amfani da wutar gaba, electrons daga Layer n-type da kuma ramuka daga Layer p-type suna sake haɗuwa a yankin aiki, suna fitar da makamashi a cikin nau'in photons. Bandgap na kayan AlGaInP an ƙera shi don samar da haske a cikin bakan ja (612-620 nm). Na'urar an girma akan substrate na GaAs, wanda daga baya ake cirewa ko ragewa don inganta fitar da haske. Fakitin PLCC4 ya haɗa da kofin reflector da silicone encapsulant mai haske wanda ke tsara tsarin haske.

13. Hanyoyin Fasaha

Kasuwar LED mota tana motsawa zuwa inganci mafi girma, ƙananan fakitin, da kuma ingantaccen aikin zafi. LEDs ja na AlGaInP suna ci gaba da inganta ingancin haske da dogaro. Halin zuwa haskoki na matrix da fitilun tuki masu daidaitawa yana ƙara buƙatar LEDs da za a iya magance su daban. Haɗin LEDs tare da direbobi masu hankali da bincike (misali, LIN bus) shima yana girma. Wannan samfurin, tare da cancantar AEC-Q101, ya yi daidai da ƙoƙarin masana'antar don inganci mara lahani a cikin na'urorin lantarki na motoci. Ci gaba na gaba na iya haɗawa da ma fi kunkuntar nisa na bakan don tsabtar launi da kuma mafi girman yanayin zafi don aikace-aikacen da ke ƙarƙashin murfin mota.