Takardar Bayani Na LED RF-GNB170TS-CF - Girma 2.0x1.25x0.7mm - Voltaji na Gaba 2.8-3.4V - Ƙarfin Wutar 105mW - Kolin Kore - Taimako na Fasaha

1. Dubawa Kan Samfur

Wannan na'urar LED ce mai kala da aka yi ta amfani da chip kore. An tsara ta don nuna haske na gabaɗaya, nuna alamar kunnawa da alamar, da sauran aikace-aikace da ke buƙatar tushen haske mai girman SMD mai ƙarami. LED tana da kusurwar gani mai faɗi sosai na digiri 140, wanda ya sa ta dace da aikace-aikace inda rarraba haske daidai yake da muhimmanci. Ta dace da duk hanyoyin haɗa SMT na yau da kullun da kuma aikin walda, kuma ta bi ka'idojin RoHS. Matakin damuwa da danshi yana da mataki na 3, yana buƙatar kula da adanawa da kyau don hana shiga danshi. Girman kunshe yana da 2.0 mm x 1.25 mm x 0.7 mm, yana ba da damar yin amfani da zurfin PCB mai yawan gaske.

2. Bincike Mai Zurfi Kan Sigogin Fasaha

2.1 Halayen Lantarki / Na Haske (a Ts=25°C)

Ana bayyana sigogin lantarki da haske a ƙarƙashin gwajin wutar 20 mA sai dai in an bayyana akasin haka. Voltaji na gaba (VF) an raba shi zuwa ɗakuna da yawa daga mafi ƙanƙanta na 2.8 V (ɗakin G1) zuwa mafi girma na 3.4 V (ɗakin J1), tare da ƙimar al'ada daban a cikin ɗakuna. Tsawon igiyar haske mai rinjaye (λD) ya tashi daga 515.0 nm zuwa 530.0 nm, ya rufe ɗakuna D10 zuwa F20. Ƙarfin haske (IV) yana daga 260 mcd zuwa 900 mcd a cikin ɗakuna 1AU zuwa 1CM. Faɗin rabin bandwidth na haske (Δλ) yawanci 15 nm ne. Kusurwar gani (2θ1/2) yawanci digiri 140 ne. Matsayin wutar baya (IR) a VR=5V yana iyakance ga 10 μA mafi girma. Juriya na zafi daga haɗin kai zuwa maki haɗa (RTHJ-S) shine 450 °C/W mafi girma.

2.2 Matsakaicin Ƙididdiga na Jiki

Ba za a ƙetare matsakaicin ƙididdiga na jiki ba ko da na ɗan lokaci don guje wa lalacewa na dindindin. Ƙarfin wutar (Pd) shine 105 mW. Cigaba da wutar gaba (IF) shine 30 mA, tare da mafi girman wutar gaba (IFP) na 60 mA a lokacin 1/10 na sake zagaye, faɗin bugun 0.1 ms. Matsayin juriyar wutar lantarki (ESD) (HBM) shine 1000 V. Yanayin zafi na aiki (Topr) yana daga -40°C zuwa +85°C. Yanayin zafi na adanawa (Tstg) yana daga -40°C zuwa +85°C. Zafin haɗin kai (Tj) bai kamata ya wuce 95°C ba.

2.3 Hukunce-hukuncen Aunawa

Hukunce-hukuncen aunawa na voltaji na gaba shine ±0.1 V. Hukunce-hukuncen aunawa na tsayin igiyar haske mai rinjaye shine ±2 nm. Hukunce-hukuncen aunawa na ƙarfin haske shine ±10%. Duk aunawa ana yin su ne a ƙarƙashin yanayin gwajin Refond na yau da kullun (lura: an cire sunan masana'anta don bin ka'ida).

3. Tsarin Rarraba Daki

LED tana rarraba ta bisa ga voltaji na gaba, tsayin igiyar haske mai rinjaye, da ƙarfin haske. Ɗakunan voltaji na gaba suna daga G1 (na yau da kullun 2.8 V) zuwa J1 (na yau da kullun 3.4 V). Ɗakunan tsayin igiyar haske sun haɗa da D10 (515.0-517.5 nm), D20 (517.5-520.0 nm), E10 (520.0-522.5 nm), E20 (522.5-525.0 nm), F10 (525.0-527.5 nm), da F20 (527.5-530.0 nm). Ɗakunan ƙarfin haske sune 1AU (260-330 mcd), 1AV (330-430 mcd), 1CG (430-560 mcd), 1CL (560-700 mcd), da 1CM (700-900 mcd). Masu amfani na ƙarshe za su iya tantance haɗin da ake buƙata na ɗakuna don aikace-aikacen su.

4. Bincike Kan Lanƙwasankin Aiki

4.1 Voltaji na Gaba tare da Wutar Gaba

Voltaji na gaba yana ƙaruwa da wutar gaba a cikin dangantaka mai ma'ana ta diode. A wutar gwaji na 20 mA, voltaji na gaba yana cikin ɗakunan da aka ƙayyade. An ba da lanƙwasan a cikin Hoto 1-6 na takardar bayani ta asali.

4.2 Wutar Gaba tare da Ƙarfin Haske na Matsala

Ƙarfin haske na matsala yana ƙaruwa kusan daidai da wutar gaba har zuwa 30 mA, tare da ɗan raguwa a manyan wutar. An nuna wannan dangantaka a Hoto 1-7.

4.3 Zafin Fitsila tare da Ƙarfin Haske na Matsala da Wutar Gaba

Yayin da zafin fitsila yake ƙaruwa, ƙarfin haske na matsala yana raguwa a hankali. Misali, a yanayin zafi na 100°C, ƙarfin haske na matsala ya faɗi zuwa kusan 80% na ƙimarsa a 25°C. Mafi girman wutar gaba da aka yarda shima yana raguwa tare da ƙaruwar zafin fitsila, kamar yadda aka nuna a Hotuna 1-8 da 1-9.

4.4 Canjin Tsayin Igiyar Haske tare da Wuta da Zafi

Tsawon igiyar haske mai rinjaye yana canja dan kadan tare da wutar gaba, yana ƙaruwa da kusan 2-3 nm daga 5 mA zuwa 30 mA (Hoto 1-10). Rarraba haske (Hoto 1-11) ya nuna kololuwa a kusan 520 nm tare da faɗin rabin bandwidth na 15 nm.

4.5 Tsarin Radiyoyi

Tsarin radiyoyi (Hoto 1-12) ya nuna rarraba kusurwa mai faɗi tare da ƙarfin haske na matsala sama da 0.8 har zuwa ±60° daga ginshikin gani. Kusurwar gani na 140° yayi daidai da cikakken faɗin rabin matsakaici.

5. Bayani Kan Injiniya da Tattara

5.1 Girman Kunshe

Kunshe yana auna 2.0 mm (tsayi) x 1.25 mm (faɗi) x 0.7 mm (tsawo). Duban sama ya nuna lankwasa biyu (Lankwasa 1 da Lankwasa 2) don haɗin lantarki. An nuna alamar polarity a duban ƙasa: ɓangaren cathode yana da alamar yanki mai koren kala (kamar yadda aka gyara kwanan nan). Tsarin walda yana ba da shawarar shimfidar lankwasa tare da girma na 1.20 mm x 0.80 mm ga kowane lankwasa, tare da tazarar 3.20 mm tsakanin tsakiyar lankwasa biyun. Duk hukunce-hukuncen girman suna ±0.2 mm sai dai in an bayyana akasin haka.

5.2 Girman Tebur Mai ɗauka

Ana tattara LEDs a cikin tebur mai ɗauka mai faɗi 8.00 mm. Matsayin tsakanin aljihu yana 4.00 mm, kuma tazarar daga rami na sprocket zuwa tsakiyar aljihu yana 1.75 mm. Zurfin aljihu yana 1.42 mm, wanda ya dace da LED mai kauri 0.7 mm. Tebur na sama yana rufe aljihunan, kuma ana ba da alamun polarity don daidaita.

5.3 Girman Gungura

Diamita na gungura yana 178 ± 1 mm, tare da diamita na cibiya na 60 ± 1 mm da faɗin 8.0 ± 0.1 mm. Diamitar ramin arbor yana 13.0 ± 0.5 mm. Ana liƙa lakabi a kan gungura don ganowa.

6. Jagororin Walda da Haɗuwa

6.1 Bayanin Walda ta SMT Reflow

Bayani na walda ta reflow da aka ba da shawarar yana bin JEDEC J-STD-020 na yau da kullun. Matsakaicin haɓakar ɗumama daga Tsmin (150°C) zuwa TP (kololuwa 260°C) bai kamata ya wuce 3°C/s ba. Yankin riga-ɗumama: Tsmin = 150°C, Tsmax = 200°C, tare da lokacin jiƙa na minti 60-120. Lokacin sama da zafin ruwa (TL = 217°C) yakamata ya kasance daƙiƙa 60-150. Zafin kololuwa (TP) yana 260°C tare da iyakar lokaci a cikin 5°C na TP na daƙiƙa 30, kuma lokaci a ainihin zafin kololuwa (tp) bai kamata ya wuce daƙiƙa 10 ba. Matsayin sanyaya bai kamata ya wuce 6°C/s ba. Jimlar lokaci daga 25°C zuwa kololuwa yakamata ya zama ƙasa da mintuna 8.

6.2 Walda da Hannu da Gyara

Walda da hannu yakamata a yi a zafin jiki ƙasa da 300°C na ƙasa da daƙiƙa 3, kuma sau ɗaya kawai. Ba a ba da shawarar gyaran LEDs da aka walda ba; idan ba za a iya kaucewa ba, yi amfani da ƙarfen walda mai kai biyu kuma tabbatar da cewa halayen LED ba su lalace ba.

6.3 Yanayin Ajiyayye da Bushewa

Kafin buɗe jakar aluminum, adana a ≤30°C da ≤75% RH na tsawon shekara ɗaya daga ranar tattara. Bayan buɗewa, dole ne a yi amfani da LEDs a cikin sa'o'i 168 (≧24 hours) a ƙarƙashin ≤30°C da ≤60% RH. Idan katin nuna danshi ya nuna danshi mai yawa ko kuma lokacin ajiyayye ya wuce, bushe LED a 60±5°C na akalla sa'o'i 24 kafin amfani.

7. Bayani Kan Tattara da Oda

7.1 Yawan Tattara

Yawan tattara na yau da kullun shine guda 4000 a kowace gungura. Ana sanya gungura a cikin jakunan hana danshi tare da bushewa da katin nuna danshi. Sa'an nan kuma ana tattara jakunan a cikin akwatunan kwali.

7.2 Bayanin Lakabi

Kowace gungura tana da lakabi mai ɗauke da: Lambar Sashe, Lambar Spec, Lambar Lot, Lambar Bin (tare da bin haske, bin chromaticity, lambar voltaji na gaba, lambar tsayin igiyar haske), Yawan Tattara, da Ranar Ƙera. Ana liƙa lakabin gargaɗin ESD na ƙarin a jakar hana danshi.

8. Bayanan Aikace-aikace

8.1 Aikace-aikace na Yau da Kullun

Wannan LED koren yana da kyau don nunin haske, haskaka baya, haskaka alamun kunnawa da alamar, nunin dashboard, da alamar gabaɗaya. Kusurwar ganin sa mai faɗi ya sa ya dace da nunin wurare masu faɗi inda ake buƙatar gani daga kusurwa da yawa.

8.2 Abubuwan La'akari na Zane

• Iyakance Wutar:Koyaushe yi amfani da resistor na jeri don iyakance wutar. Canjin voltage kaɗan na iya haifar da babban canjin wutar saboda tsananin lanƙwasan I-V. Tabbatar cewa wutar ba ta taɓa wuce matsakaicin ƙididdiga na 30 mA ba.
• Sarrafa Zafi:Ɗumamar zafi yana rage ƙarfin haske kuma yana canja kala. Tsara PCB tare da isasshen yankin jan ƙarfe don ɗaukar zafi. Don gungun manyan yawa, yi la'akari da hanyoyin zafi.
• Kariyar ESD:Na'urar tana da hankali ga fitar da wutar lantarki. Yi amfani da matakan kariyar ESD yayin ɗauka da haɗuwa. Yi la'akari da ƙara diode na kariya ta baya a cikin da'irar tuƙi.
• Dacewa da Muhalli:Guji fallasa ga mahadi na sulfur (ƙasa da 100 ppm). Abun ciki na bromine da chlorine a cikin kayan haɗi ya kamata kowannensu ya zama ƙasa da 900 ppm, kuma jimillar ƙasa da 1500 ppm. Abubuwan ƙwayoyin halitta masu canzawa (VOCs) na iya shiga cikin rufin silicone kuma su yi canza kala; tabbatar da dacewar kayan kafin amfani.
• Ɗauka da Injiniya:Kada a yi amfani da ƙarfin injiniya a kan ruwan tabarau na silicone. Yi amfani da tweezers a ɓangarorin gefe. Kada a lanƙwasa PCB bayan walda. Kada a sanyaya na'urar da sauri bayan reflow.
• Tsaftacewa:Idan ana buƙatar tsaftacewa, yi amfani da isopropyl alcohol. Dole ne a tabbatar da sauran abubuwan narkewar da ba su lalace kunshe ba. Ba a ba da shawarar tsaftacewa da ultrasonic ba saboda yana iya haifar da lalacewa a ciki.

9. Tambayoyin da ake yawan yi

Q1: Menene mafi girman lokacin ajiyayye kafin buɗe jakar da aka rufe?
A: Har zuwa shekara ɗaya a ≤30°C da ≤75% RH.

Q2: Za a iya amfani da LED a aikace-aikacen waje?
A: Kewayon zafin aiki yana daga -40°C zuwa +85°C, wanda ya rufe yawancin yanayin waje. Duk da haka, ya kamata a yi la'akari da kariya daga danshi da hasken UV.

Q3: Yaya zan fassara lambobin bin a kan lakabin?
A: Lambar bin ta ƙunshi bin haske (misali 1AU), bin chromaticity (misali D10), bin voltaji na gaba (misali G1), da lambar tsayin igiyar haske (misali 515). Duba takardar bayanin samfur don daidaitattun iyakoki.

Q4: Menene hanyar tsaftacewa da aka ba da shawarar idan LED ya gurɓata?
A: Ana ba da shawarar isopropyl alcohol. Kada a yi amfani da tsaftacewar ultrasonic.

10. Misalin Aikace-aikace Mai Amfani

Ka yi la'akari da wani kwamitin kunnawa na gida mai wayo tare da alamomin matsayi da yawa. LED koren (tsayin igiyar haske ~520 nm) na iya nuna matsayin 'kunnawa' ko 'haɗi'. Domin wannan LED yana da kusurwar gani mai faɗi na 140°, alamar tana iya gani daga kusan kowane kusurwa. Ƙananan kunshe (2.0x1.25mm) yana ba da damar sanya alamomi da yawa kusa da juna a kan PCB mai ƙarami. Yin amfani da resistor na jeri na kusan ohm 180 (don samar da 5V da voltaji na gaba na yau da kullun 2.8V) yana iyakance wutar zuwa kusan 12 mA, wanda yake cikin iyakar aiki mai aminci. Zanen PCB ya haɗa da shimfidar ƙasa don ɗaukar zafi, yana tabbatar da cewa zafin haɗin kai ya kasance ƙasa da 95°C ko da a cikin rufi mai dumi.

11. Ka'idar Aiki

LED koren (LED mai fitar da haske) shine na'urar semiconductor da ke fitar da haske lokacin da electrons suka sake haɗuwa da holes a cikin yanki mai aiki. Chip koren yawanci ana yinsa ne daga kayan gallium nitride (GaN) ko indium gallium nitride (InGaN). Lokacin da aka yi amfani da madaidaicin gaba, electrons daga yanki n-type da kuma holes daga yanki p-type ana shigar dasu cikin aikin layin rijiyoyin, inda suke sake haɗuwa ta radiyoyi, suna fitar da photons da makamashi daidai da bandgap. Don fitar da kore, bandgap yana kusan 2.3-2.4 eV, daidai da tsayin igiyar haske kusan 520 nm. An rufe na'urar a cikin ruwan tabarau na silicone wanda ke inganta fitar da haske kuma yana kare chip.

12. Hanyoyin Ci Gaban Masana'antu

Kasuwar LEDs na SMD tana ci gaba da buƙatar ƙananan kunshe tare da ƙarfin haske mafi girma da kuma daidaiton kala mafi kyau. Hanyar zuwa ƙanana (misali, 0603, 0402) tana ba da damar ƙarin sassauci a zane. A cikin bakan kore, inganta epitaxial girma da zanen chip suna tura ƙarfin haske sama da 200 lm/W na na'urori masu ƙarfi. Bugu da ƙari, ka'idojin muhalli kamar RoHS da REACH suna motsa kawar da abubuwa masu haɗari. Haɗe da kariyar ESD da inganta juriya da danshi sune ci gaban aminci na ci gaba. A ƙarshe, ɗaukar haske mai wayo da IoT zai ƙara buƙatar amintattun, masu tsawon rai LEDs masu nuna a cikin na'urori masu haɗi.