Ƙayyadaddun Bayanan Chip LED Shuɗi 1.0x0.5x0.4mm - 2.6-3.4V - 20mA - 70mW

1. Bayanin Samfurin

RF-BU0402TS-CE-B LED ne shuɗi mai ɗora ƙura na sama wanda aka yi ta amfani da chip shuɗi mai inganci. An ƙera shi don nunawa da kuma nuni gabaɗaya inda ake buƙatar kusurwar kallo mai faɗi da ƙaramin sarari. Girman fakitin shine 1.0mm x 0.5mm x 0.4mm, yana sa ya dace da ƙira masu ƙuntataccen sarari. Abubuwan da suka fi muhimmanci sun haɗa da kusurwar kallo mai faɗi sosai, dacewa da haɗa SMT na yau da kullun da ɗora ƙura ta reflow, hankalin danshi mataki na 3, da kuma yarda da RoHS. Aikace-aikace na yau da kullun sun haɗa da nuni na haske, hasken baya na maɓalli, nuni na alamomi, da fitilun matsayi na gabaɗaya.

1.1 Bayani na Gabaɗaya

LED ɗin yana amfani da chip shuɗi wanda ke fitar da haske a cikin kewayon tsawon igiyar ruwa mai rinjaye 465-475 nm. An rufe shi a cikin ƙaramin fakitin 1.0mm x 0.5mm x 0.4mm tare da ruwan tabarau na epoxy bayyananne. Na'urar an ƙera ta don ɗauka-sanya na atomatik na ɗora ƙura na sama kuma tana iya jure har zuwa zagayowar reflow biyu a mafi girman zafin 260°C (bisa ga ma'aunin JEDEC).

1.2 Abubuwan Fasaloli

• Kusurwar kallo mai faɗi sosai (yawanci 140°).
• Ya dace da duk haɗa SMT da kuma hanyoyin ɗora ƙura.
• Hankalin danshi: Mataki na 3 (bisa ga IPC/JEDEC J-STD-020).
• Yarda da RoHS - ba tare da gubar da sauran abubuwan da aka hana ba.
• Ana samunsa a cikin rarrabuwar haske da ƙarfin lantarki da yawa don dacewa da buƙatun ƙira daban-daban.

1.3 Aikace-aikace

• Nunin haske a cikin na'urorin lantarki na mabukaci, kayan aiki, da cikin motoci.
• Hasken baya na maɓalli da alamomi (madannai, maɓallan turawa).
• Hasken baya na nuni don ƙananan LCD ko nuni na yanki.
• Nuni na matsayi na gabaɗaya a cikin kayan masana'antu da na likita.

2. Sigogin Fasaha

Duk ma'aunin lantarki da na gani ana yin su a yanayin gwaji na Ts = 25°C sai dai idan an bayyana akasin haka.

2.1 Halayen Lantarki / Gani (IF = 5 mA)

2.2 Matsakaicin Ƙimar Cikakken (Ts = 25°C)

Lura: Ya kamata a yanke shawarar mafi girman ƙarfin lantarki bayan an auna zafin fakitin. Zafin haɗi bai kamata ya wuce mafi girman ƙimar da aka ƙayyade ba.

3. Tsarin Rarrabuwa

Ana rarraba LED ɗin zuwa rarrabuwa da yawa don ƙarfin lantarki na gaba, tsawon igiyar ruwa mai rinjaye, da ƙarfin haske. Wannan yana bawa masu ƙira damar zaɓar na'urorin da suka dace da ainihin buƙatun kewayawa, suna tabbatar da daidaiton haske da launi a cikin tsarin LED mai yawa.

3.1 Rarrabuwar Ƙarfin Lantarki na Gaba

Ana auna ƙarfin lantarki na gaba a IF = 5 mA. Ana lakanta rarrabuwar daga F1 zuwa J1, suna rufe kewayon daga 2.6V zuwa 3.6V da haɓaka 0.1V. Misali, F1 ya fito daga 2.6-2.8V, F2 ya fito daga 2.7-2.9V, da sauransu. Haƙurin auna shine ±0.1V.

3.2 Rarrabuwar Tsawon Igiyar Ruwa Mai Rinjaye

Ana ƙayyade rarrabuwar tsawon igiyar ruwa a IF = 5 mA. D10 ya rufe 465.0-467.5 nm, D20 ya rufe 467.5-470.0 nm, E10 ya rufe 470.0-472.5 nm, kuma E20 ya rufe 472.5-475.0 nm. Haƙurin auna shine ±2 nm.

3.3 Rarrabuwar Ƙarfin Haske

Ana matsayin rarrabuwar ƙarfin haske (IV) daga B00 (12-18 mcd) zuwa F20 (80-100 mcd). Wannan kewayon mai faɗi yana ɗaukar buƙatun haske daban-daban a cikin nuni, hasken baya, da nuni. Haƙurin rarrabuwa shine ±10%.

4. Nazarin Lanƙwasawan Aiki

4.1 Ƙarfin Lantarki na Gaba da Ƙarfin Lantarki na Gaba

Ƙarfin lantarki na gaba na yau da kullun yana ƙaruwa tare da ƙarfin lantarki na gaba. A 5 mA ƙarfin lantarki na gaba yana kusan 2.7-3.1V dangane da rarrabuwa. Lanƙwasan yana kusan madaidaiciya daga 0 zuwa 25 mA, tare da gangara kimanin 0.1-0.2 V a kowace 10 mA.

4.2 Ƙarfin Lantarki na Gaba da Ƙarfin Haske Mai Dangantaka

Ƙarfin haske mai dangantaka yana ƙaruwa kusan madaidaiciya tare da ƙarfin lantarki na gaba har zuwa 20 mA. A 5 mA ƙarfin haske yana kusan 0.3 dangane da 20 mA. Aiki a ƙarfin lantarki mafi girma yana samar da haske mafi girma amma kuma yana ƙara zafin haɗi.

4.3 Zafin Muhalli da Ƙarfin Haske Mai Dangantaka

Yayin da zafin muhalli ya tashi daga 25°C zuwa 100°C, ƙarfin haske mai dangantaka yana raguwa da kusan 10-15%. Dole ne a yi la'akari da wannan ragewar zafi a aikace-aikacen zafin jiki mai girma.

4.4 Zafin Fil ɗin da Ƙarfin Lantarki na Gaba

Mafi girman ƙarfin lantarki na gaba da aka yarda yana raguwa lokacin da zafin fil (wurin ɗora ƙura) ya wuce kusan 60°C. A zafin fil na 100°C, mafi girman ƙarfin lantarki na gaba mai ci gaba yana raguwa zuwa kusan 15 mA don kiyaye haɗin ƙasa da 95°C.

4.5 Ƙarfin Lantarki na Gaba da Tsawon Igiyar Ruwa Mai Rinjaye

Ƙara ƙarfin lantarki na gaba daga 0 zuwa 30 mA yana haifar da ɗan canji a tsawon igiyar ruwa mai rinjaye (kusan +2 nm), wanda ya zama ruwan dare ga LED InGaN. Wannan tasirin ƙanana ne kuma yawanci ba a kula da shi don aikace-aikacen nuni.

4.6 Ƙarfin Haske Mai Dangantaka da Tsawon Igiyar Ruwa (Bakan)

Rarraba bakan yana koli a kusa da 470 nm tare da cikakken faɗi a rabin matsakaici (FWHM) na kusan 15 nm. Fitarwa tana kunkuntar, tana ba da launi shuɗi mai cikakken ƙarfi.

4.7 Tsarin Radiation

LED ɗin yana nuna tsarin radiation mai kama da Lambertian tare da kusurwar kallo mai faɗi na 140° (kusurwar rabin ƙarfin haske 70°). Wannan ya sa ya dace da nuni na yanki mai faɗi.

5. Bayanin Injiniya da Marufi

5.1 Girman Fakitin

LED ɗin yana cikin fakitin 1.0mm x 0.5mm x 0.4mm (tsawo x faɗi x tsayi). Yana da filayen anode/cathode guda biyu a gefen ƙasa tare da alama mai nuna polarity (duba zane na polarity). Tsarin filayen ɗora ƙura da aka ba da shawara shine 0.5mm x 0.6mm a kowane fil tare da tazarar fil zuwa fil na 0.6mm.

5.2 Polarity da Tsarin Ɗora ƙura

Ana nuna cathode ta wani ɗan ƙaramin ƙyalli a kan kallo na sama ko ƙasa. Na'urar an ƙera ta don ɗora ƙura ta reflow tare da buɗe abin rufe ƙura na yau da kullun na 0.25mm. Duk girma suna cikin millimeters tare da haƙurin ±0.2mm sai dai idan an lura da akasin haka.

5.3 Girman Tef ɗin Ɗaukar kaya da Reel

Ana marufi sassa a cikin tef ɗin ɗaukar kaya mai faɗi 8mm tare da titin 2.0mm. Kowane reel yana ɗaukar kayan 4000. Diamita na waje na reel shine 178mm ±1mm, diamita na cibiya shine 60mm ±0.1mm, kuma faɗin shine 8.0mm +1/-0mm. Tef ɗin yana rufe da tef ɗin rufe na sama kuma ya haɗa da alamar polarity don jagora.

6. Jagorar Ɗora ƙura da Haɗawa

6.1 Bayanin Ɗora ƙura ta Reflow

Bayanin reflow da aka ba da shawara yana bin ƙa'idodin JEDEC. Gabaɗaya zafin daga 150°C zuwa 200°C a cikin 60-120 seconds. Lokacin sama da 217°C (TL) ya kamata ya kasance 60-150 seconds. Matsakaicin zafin (TP) bai kamata ya wuce 260°C na fiye da 10 seconds ba. Saurin sanyaya ya kamata ya kasance ƙasa da 6°C/s. An yarda da matsakaicin zagayowar reflow biyu; idan lokacin tsakanin ayyukan ɗora ƙura biyu ya wuce awanni 24, ana iya lalata LED ɗin.

6.2 Ɗora ƙura da Hannu

Idan ɗora ƙura da hannu ya zama dole, yi amfani da zafin kan ƙarfen ɗora ƙura ƙasa da 300°C na ƙasa da 3 seconds. Ya kamata a yi ɗora ƙura da hannu sau ɗaya kawai. Kada a yi amfani da ƙarfin injiniya yayin dumama.

6.3 Gyara

Ba a ba da shawarar gyara bayan ɗora ƙura ba. Idan ba a iya gujewa ba, yi amfani da ƙarfe mai kai biyu kuma tabbatar cewa halayen LED ba su ragu ba.

6.4 Ajiya da Sarrafa Danshi

LED ɗin yana da hankalin danshi mataki na 3. Kafin buɗe jakar aluminum, ajiye a ≤30°C / ≤75% RH har zuwa shekara ɗaya daga ranar rufewa. Bayan buɗewa, rayuwar shiryayye shine awanni 168 a ≤30°C / ≤60% RH. Idan lokacin ajiya ya wuce ko mai bushewa ya ɓace, ana buƙatar gasa: 60°C ±5°C na akalla awanni 24. Kada a gasa reels ko tire a yanayin zafi mafi girma.

7. Bayanin Marufi da Oda

Marufi na yau da kullun shine kayan 4000 a kowane reel. Kowane reel an rufe shi a cikin jakar hana danshi tare da mai bushewa da katin nuna zafi. Lakabin ya haɗa da lambar sashi, lambar ƙayyadaddun bayanai, lambar kuri'a, lambar rarrabuwa (don flux, chromaticity, ƙarfin lantarki na gaba, da tsawon igiyar ruwa), adadi, da lambar kwanan wata. Ana tattara reels a cikin akwatunan kwali don jigilar kaya.

8. Bayanan Aikace-aikace

8.1 Abubuwan La'akari da Zane na Kewayawa

Koyaushe yi amfani da resistors masu iyakance ƙarfin lantarki a jeri tare da LED don hana ƙarfin lantarki na gaba ya wuce mafi girman ƙimar cikakken (20 mA ci gaba). Ko da ƙananan canje-canjen ƙarfin lantarki na iya haifar da manyan canje-canjen ƙarfin lantarki. Dole ne a ƙera kewayawar direba don ba da damar ƙarfin lantarki na gaba kawai lokacin da LED ke kunne; ƙarfin lantarki mara kyau na iya haifar da ƙaura da lalacewa.

8.2 Sarrafa Zafi

Samar da zafi yana rage fitar da haske kuma yana saurin tsufa. Samar da isasshen zafi ta hanyar filayen ɗora ƙura da filayen jan ƙarfe na PCB. Dole ne zafin haɗi ya kasance ƙasa da 95°C. A cikin yanayin zafin muhalli mai girma, rage ƙarfin lantarki na gaba daidai.

8.3 Ƙuntatawa na Muhalli

Yanayin aiki ya kamata ya ƙunshi ƙasa da 100 ppm na mahadi na sulfur. Abun da ke cikin bromine da chlorine a cikin kayan waje (masu rufewa, manne) kowanne dole ne ya kasance ƙasa da 900 ppm, kuma jimlar su ƙasa da 1500 ppm. VOCs (mahadi masu ƙanshi masu canzawa) daga kayan kayan aiki na iya shiga cikin silicone mai rufewa kuma haifar da canza launi; gwada kayan kafin amfani.

9. Kwatanta Fasaha

Idan aka kwatanta da daidaitattun fakitin 0603 ko 0805, sawun 1.0x0.5x0.4mm yana adana yankin PCB yayin da yake kula da kusurwar kallo mai faɗi 140°. Ƙarancin juriya mai zafi (450 K/W) yana ba da damar canja wurin zafi mai inganci. Rarrabuwar tsawon igiyar ruwa mai kunkuntar (±2.5 nm a kowace rarrabuwa) yana ba da daidaiton launi mafi kyau fiye da yawancin LED shuɗi na gabaɗaya. Matsakaicin ƙimar ESD (1000V HBM) yana ba da ƙarfi a masana'antu da amfani a filin.

10. Tambayoyi da Aka Yi Yawanci (FAQ)

• Menene ƙarfin lantarki na gaba da aka ba da shawara don aikace-aikace na yau da kullun?5-10 mA ya zama ruwan dare don amfani da nuni; har zuwa 20 mA don haske mafi girma, amma tabbatar da iyakokin zafi.
• Zan iya tuka LED ɗin da siginar PWM?Ee, amma kiyaye mafi girman ƙarfin lantarki ƙasa da 60 mA da sake zagayowar aiki ƙasa da 10% don guje wa zafi mai yawa.
• Yaya zan ajiye reels ɗin da ba a buɗe ba?A ≤30°C da ≤75% RH, a cikin jakar hana danshi ta asali.
• Menene ya faru idan LED ɗin ya fallasa ga ESD fiye da 1000V?Yana iya gazawa sosai ko kuma ya nuna ƙaruwar ƙarfin lantarki mai ɗigowa. Yi amfani da kariyar ESD mai dacewa yayin sarrafawa.
• Me yasa ƙarfin lantarki na gaba ya bambanta tsakanin rarrabuwa?Haƙurin masana'antu yana haifar da ɗan bambance-bambance a cikin kaddarorin chip. Rarrabuwa yana tabbatar da daidaiton halayen lantarki a cikin rarrabuwa da aka bayar.

11. Nazarin Aikace-aikace

11.1 Hasken Baya na Ƙaramin LCD Panel

An sanya LED shuɗi guda uku (rarrabuwa E00) a jeri tare da resistor 150Ω kuma an tuka su a 5V. Kowane LED ya sami ~10 mA. Ƙarfin haske da aka haɗa (180 mcd) ya haskaka baya na nuni na haruffa 1.5-inch yadda ya kamata.

11.2 Samar da Haske Fari

Ta hanyar shafa LED shuɗi da phosphor rawaya (ba a haɗa shi ba), ana iya ƙirƙirar LED fari. Bakan shuɗi mai kunkuntar (465-475 nm) ya dace da juyar da phosphor.

11.3 Nuni na Cikin Mota

Kusurwar kallo mai faɗi da ƙaramin fakitin sun ba da damar sanyawa a cikin maɓallin dashboard. LED ɗin ya tsira daga gwajin hawan zafi bisa ga AEC-Q101 saboda ƙaƙƙarfan ginin sa.

12. Ka'idar Aiki

LED ɗin ya dogara ne akan chip semiconductor InGaN (indium gallium nitride). Lokacin da aka kunna gaba, electrons suna sake haɗuwa da ramuka a cikin yankin aiki, suna sakin makamashi a matsayin photons. Bandgap na kayan yana ƙayyade tsawon igiyar ruwa na fitarwa (~470 nm don shuɗi). Ana ɗora chip ɗin akan leadframe kuma a rufe shi da epoxy mai haske don kare haɗin gwiwa da inganta fitar da haske.

13. Al'amuran Ci Gaba

Halin da ake bi na ƙananan LED shuɗi yana ci gaba zuwa ƙananan sawun (misali, 0.6x0.3x0.2mm) da inganci mafi girma (har zuwa 30% WPE). Ana haɗa ingantaccen sarrafa zafi da kariyar ESD. Amfani da LED shuɗi don hasken fari mai jujjuyawar phosphor yana faɗaɗawa a kasuwannin motoci, wayoyin hannu, da haske na gabaɗaya. Masana'antar kuma tana ɗaukar ƙa'idodin rarrabuwa masu tsauri don tabbatar da daidaiton launi a aikace-aikace masu yawa.