Bayanan Fitarwar Haske LED RF-A3E31-W60H-B3 - 3.0x3.0x0.55mm - 2.8-3.4V - 1.428W Max - Matsayin Mota

1. Bayanin Samfurin

RF-A3E31-W60H-B3 wani LED farin mai kyau ne wanda aka tsara don aikace-aikacen hasken mota na ciki da waje. Yana amfani da guntu LED shuɗi tare da phosphor da aka tsara daidai don samar da haske fari na halitta. Kunshin yana auna 3.00mm x 3.00mm x 0.55mm, yana dacewa da ƙananan wurare. Tare da wutar lantarki na yau da kullun 2.8-3.4V a 350mA da karfin wutar lantarki mafi girma 1.428W, wannan LED yana ba da haske mai kyau na 105-160 lumens yayin da yake riƙe inganci. Na'urar ta cancanta bisa ga jagororin gwajin damuwa AEC-Q102 don na'urorin semiconductor masu daraja na mota, yana tabbatar da dogaro a yanayin aiki mai wahala.

1.1 Muhimman Abubuwan

• Kunshin EMC (Epoxy Molding Compound) don ƙarfin inji mai ƙarfi da aikin zafi
• Kusurwar gani mai faɗi sosai na 120° (rabin kusurwar ƙarfi)
• Ya dace da duk ayyukan SMT da kuma aikin reflow soldering
• Ana samuwa a kan shiryawa na tef da reel (4000 a kowane reel)
• Matsayin hankali ga danshi: Mataki na 2 (bisa ga JEDEC)
• Ya bi RoHS
• Ƙarfin jure ESD: 8000V (HBM)
• Matsakaicin zafin aiki: -40°C zuwa +125°C
• Matsakaicin zafin ajiya: -40°C zuwa +125°C
• Matsakaicin zafin junction: 150°C

1.2 Aikace-aikacen da aka yi niyya

Wannan LED an tsara shi musamman don tsarin hasken mota, wanda ya haɗa da aikace-aikace na ciki da waje kamar:

• Hasken gudu na rana (DRL)
• Alamomin juyawa
• Hasken birki
• Hasken yanayi na ciki
• Hasken farantin mota
• Hasken matsayi
• Hasken alamar gefe

Matsakaicin zafin aiki mai faɗi da cancantar AEC-Q102 suna tabbatar da aiki mai ƙarfi a yanayin mota mai tsanani.

2. Binciken Ma'aunin Fasaha

2.1 Halaye na Lantarki da na Hasken (a Ts=25°C, IF=350mA)

Matsakaicin wutar lantarki na gaba na 2.8-3.4V a 350mA ya zama na yau da kullun ga LEDs fari masu ƙarfi da ke amfani da guntu shuɗi na InGaN. Rarraba wutar lantarki mai ƙunci (matakan 0.2V) yana tabbatar da sauƙin daidaita LEDs da yawa. Gudun haske daga 105 zuwa 160 lumens yana wakiltar aji mai inganci, tare da inganci na yau da kullun ya wuce 100 lm/W a ƙarƙashin wutar da aka ƙidaya. Kusurwar gani mai faɗi 120° tana ba da rabon haske mai kyau don ayyukan sigina da haskakawa na mota.

2.2 Matsakaicin Ƙididdiga na Cikakken

Matsakaicin ƙididdiga na cikakken sun ayyana iyakokin aiki mai aminci. Gudun gaba mafi girma na 420mA da gudu mafi girma na 700mA suna ba da damar aiki na bugun jini a aikace-aikace kamar alamomin juyawa. Ƙididdigar ESD mai girma na 8kV HBM tana tabbatar da ƙarfi yayin sarrafawa da haɗuwa. Gudanar da zafi yana da mahimmanci: zafin junction bai kamata ya wuce 150°C ba don hana lalacewa.

2.3 Fassarar Juriya na Zafi

Ana samar da ƙimar juriya na zafi guda biyu: Rth JS real (14°C/W na yau da kullun, 21°C/W mafi girma) da Rth JS electrical (9°C/W na yau da kullun, 13°C/W mafi girma). Hanyar lantarki tana amfani da ma'auni mai hankali ga zafi (wutar lantarki ta gaba) don kimanta zafin junction, yayin da hanyar haqiqa ke amfani da auna zafi na jiki. Waɗannan ƙididdiga suna nuna cewa ga kowane watt na wutar da aka raba, zafin junction yana tashi da 9-21°C sama da zafin wurin solder. A 350mA da VF na yau da kullun = 3.1V, rarrabuwar wutar kusan 1.085W, yana haifar da hawan zafi daga junction zuwa solder ~15°C (ta amfani da Rth real). Masu zane dole ne su tabbatar da isasshen heat sink don kiyaye zafin junction a ƙasa da 150°C, musamman lokacin aiki a yanayin zafi mai girma (125°C).

3. Tsarin Rabe-rabe

3.1 Rabe-raben Wutar Lantarki ta Gaba (IF=350mA)

3.2 Rabe-raben Gudun Haske (IF=350mA)

3.3 Rabe-raben Launi (CIE 1931)

Hatsin launi ana raba su cikin ƙungiyoyi bakwai na VM (VM1 zuwa VM7) bisa ga zane na chromaticity CIE 1931. Kowanne rabe ana ayyana shi ta hanyar maki huɗu na kusurwar quadrilateral (x,y). Misali, VM1: (0.3150,0.2995), (0.3115,0.3212), (0.3268,0.3371), (0.3282,0.3162). Waɗannan rabe-raben sun yi daidai da zafin launi na fari mai sanyi kusan 5000-6000K, wanda ya dace da ƙayyadaddun haske fari na mota. Rabe-rabe yana tabbatar da daidaiton launi a cikin yawan samarwa.

4. Binciken Ƙirar Aiki

4.1 Wutar Lantarki ta Gaba vs. Gudun Gaba (Ƙirar I-V)

Hoto 1-7 yana nuna halayen I-V na yau da kullun na jam'i. A 2.8V gudu yana da ƙanana, yayin da a 3.4V ya kai kimanin 420mA. Ƙirar tana nuna cewa ƙananan bambancin wutar lantarki na haifar da manyan canje-canje na gudu, yana jaddada buƙatar daidaita gudu (driver IC ko resistor) don guje wa gudu na zafi mara iyaka.

4.2 Gudun Haske na Dangantaka vs. Gudun Gaba

Hoto 1-8 yana kwatanta cewa gudun haske yana ƙaruwa kusan daidai da gudu har zuwa 350mA, sannan a hankali yana cika. A 350mA gudun dangantaka kusan ~100%, yayin da a 100mA kusan 35%. Wannan dangantaka madaidaiciya tana sauƙaƙa rage haske ta amfani da PWM ko sarrafa gudu na analog.

4.3 Zafin Junction vs. Gudun Haske na Dangantaka

Hoto 1-9 yana nuna ƙididdigar zafi mara kyau: gudun dangantaka ya faɗi zuwa ~85% a 125°C junction (daga 100% a 25°C). Wannan asarar ~15% dole ne a yi la'akari da ita a cikin ƙirar zafi. A yanayin zafi mai girma, rage gudu na iya zama dole.

4.4 Zafin Solder vs. Rage Gudun Gaba

Hoto 1-10 yana ba da mafi girman gudu na gaba da aka yarda a matsayin aikin zafin wurin solder. A 25°C, ana ba da izinin 420mA; a 125°C, kusan 250mA ne kawai ake ba da izini don kiyaye zafin junction a ƙasa da 150°C. Wannan ƙirar rage yana da mahimmanci don aiki mai aminci.

4.5 Canjin Wutar Lantarki vs. Zafin Junction

Hoto 1-11 yana nuna wutar lantarki na gaba tana raguwa da zafi a ƙimar kusan -2mV/°C. A 150°C, VF ta faɗi ~0.25V daga darajar 25°C. Wannan ƙididdigar zafi mara kyau tana taimakawa daidaita gudu a cikin jerin layi daya amma yana buƙatar ramawa a cikin da'irori masu tsauri.

4.6 Tsarin Haske

Hoto 1-12 yana kwatanta tsarin haske mai kama da Lambertian tare da rabin ƙarfi a ±60°, yana tabbatar da kusurwar gani 120°. Wannan rarraba mai faɗi yana da kyau don hasken sigina na mota da ke buƙatar bayyane mai faɗi.

4.7 Canjin Launi vs. Zafi da Gudu

Hoto 1-13 da 1-14 suna nuna ƙananan canje-canje a cikin haɗin CIE (ΔCx, ΔCy) tare da zafi da gudu. A cikin kewayon -40°C zuwa 150°C, ΔCx yana canzawa kusan -0.02 kuma ΔCy kusan +0.01. Tare da gudu daga 0 zuwa 400mA, canje-canje suna cikin ±0.01. Waɗannan canje-canje suna da ƙanana don riƙe daidaiton launi mai karɓuwa.

4.8 Rarraba Bakan

Hoto 1-15 yana nuna bakan LED fari na yau da kullun tare da kololuwa shuɗi a ~450nm da kuma fitowar phosphor mai fadi daga 500-700nm. Ƙarfin kololuwar shuɗi kusan 0.4 ne gwargwadon kololuwar phosphor. Wannan bakan yana haifar da ma'aunin nuna launi mai girma wanda ya dace da hasken cikin mota inda bambancin launi yake da muhimmanci.

5. Bayanin Injiniya da Kunshin

5.1 Girman Kunshin

Kunshin LED yana auna 3.00mm (tsawon) x 3.00mm (fadin) x 0.55mm (tsawo). Jurewa ±0.2mm ne sai dai in an lura daban. Duban kasa yana nuna filaye biyu na anode (2.60mm x 0.65mm da 0.50mm x 0.65mm) da filaye biyu na cathode (1.55mm x 0.65mm da 0.30mm x 0.65mm). Ana samar da filin zafi (2.30mm x 2.40mm) don rarraba zafi. Alamar polarity ana nuna ta ta wani yanki na kusurwa.

5.2 Tsarin Solder da aka Shawarta

Hoto 1-5 yana nuna sawun PCB da aka shawarta: filaye biyu masu girma na rectangular don anode/cathode (fadin 0.65mm) da babban filin zafi na tsakiya (2.30mm x 2.40mm). Tsarin stencil solder mai kyau yana tabbatar da isasshen adadin solder don haɗin zafi da lantarki.

6. Jagororin Solder da Haɗuwa

6.1 Bayanin Reflow

LED yana dacewa da reflow soldering mara gubar. Muhimman ma'aunai: ƙimar hawa ≤3°C/s (Tsmax zuwa TP), preheat daga 150°C zuwa 200°C na 60-120s, lokaci sama da 217°C (TL) mafi girma 60s, zafin kololuwa 260°C tare da lokaci a cikin 5°C na kololuwa ≤30s (tp ≤10s). Ƙimar sanyaya ≤6°C/s. Jimlar lokaci daga 25°C zuwa kololuwa ≤8 mintuna.

6.2 Tsare-tsare

• Kada ku wuce zagaye biyu na reflow. Idan lokaci tsakanin zagaye ya wuce awanni 24, LEDs na iya ɗaukar danshi kuma suna buƙatar gasa.
• Guje wa sanya damuwa na inji a saman silicone yayin zafi.
• Kada ku yi amfani da PCBs marasa daidai; bayan soldering, guje wa lankwasa allon.
• Babu sanyaya gaggawa bayan reflow.
• Don gyara, yi amfani da ƙarfen soldering mai kai biyu; tabbatar da cewa babu lahani ga LED.
• Rufin silicone yana da laushi; yi amfani da ƙarfin bututun pick-and-place mai dacewa.

6.3 Yanayin Ajiya

7. Bayanin Shiryawa da Oda

7.1 Adadin Kunshin

Shiryawa na yau da kullun: guda 4,000 a kowane reel.

7.2 Girman Tef ɗin Dako

Tef ɗin dako mai ƙwannafi: fadin 8.00±0.1mm, tazarar aljihu 4.00±0.1mm, kauri 0.20±0.05mm. Girman aljihu: A0=3.30±0.1mm, B0=3.50±0.1mm, K0=0.90±0.1mm. Fadin tef ɗin rufe 5.30±0.1mm. Girman reel: 180±1mm (diamita flange), 60±1mm (diamita hub), 13.0±0.5mm (ramin hub).

7.3 Bayanin Lakabi

Lakabin ya haɗa da: Lambar Sashe (PART NO.), Lambar Spec (SPEC NO.), Lambar Lot (LOT NO.), Lambar Rabe (BIN CODE), Gudun Haske (Φ), Rabe Launi (XY), Wutar Lantarki ta Gaba (VF), Lambar Tsawon Kalaman (WLD), Adadi (QTY), da Kwanan wata (DATE).

8. Shawarwarin Ƙirar Aikace-aikace

8.1 Gudanar da Zafi

Ganin mafi girman wutar 1.428W da juriya na zafi 14°C/W, heat sinking mai dacewa ya zama dole. Yi amfani da babban yanki na jan ƙarfe akan PCB wanda aka haɗa da filin zafi. Don aikace-aikacen mota, yi la'akari da PCBs na karfe (MCPCB) don yada zafi zuwa gidan. Dole ne a kiyaye zafin junction a ƙasa da 150°C a ƙarƙashin yanayi mafi muni (125°C).

8.2 Ƙirar Lantarki

Koyaushe yi amfani da resistors masu iyakance gudu ko drivers na gudu akai. Ƙirar I-V mai tsatsauran ra'ayi na nufin ƙaruwar 0.1V na iya ɗaga gudu da 15-20%, yana haɗarin wuce gona da iri. Sanya resistor a jere tare da kowane LED ko yi amfani da driver LED mai sadaukarwa tare da thermal foldback. Don aiki na bugun jini (misali, alamomin juyawa), tabbatar da gudu mafi girma bai wuce 700mA ba kuma aikin aiki ≤10%.

8.3 Ƙirar Hasken

Kusurwar gani 120° tana ba da ɗaukar hoto mai faɗi. Don hasken da aka samu (misali, hasken gaba), ana buƙatar na'urorin gani na biyu kamar reflectors ko TIR lenses. Kunshin 3x3mm mai ƙarami yana dacewa da na'urorin gani na yau da kullun da aka tsara don LEDs 3030 ko 3535.

8.4 La'akari da Muhalli

Don amfanin mota, LED dole ne ya jure girgiza, danshi, da zagayen zafi. Cancantar AEC-Q102 tana tabbatar da dogaro, amma ana ba da shawarar gwajin matakin tsarin (misali, girgiza zafi, fesa gishiri). Guje wa fallasa ga mahadi masu ɗauke da sulfur (>100ppm) da halogens (Br+Cl<1500ppm) don hana lalacewar jagororin da aka yi da azurfa da kuma lalacewar phosphor.

9. Kwatanta Fasaha: Kunshin EMC vs. PLCC na Gargajiya

Kunshin EMC (Epoxy Molding Compound) yana ba da fa'idodi da yawa fiye da kunshin PLCC (Plastic Leaded Chip Carrier) na al'ada:

• Dogaro mafi girma:EMC yana da mannewa mafi kyau ga leadframes, yana rage haɗarin delamination.
• Juriya na zafi mafi kyau:Ƙananan impedance na zafi saboda ƙaramin molding.
• Ƙarfin zafi mafi girma:Zai iya jure 260°C reflow mafi girma ba tare da tsattsage ba.
• Ingantaccen aiki na gani:Ƙananan sha haske a cikin kayan molding.
• Ya dace da mota:Mafi kyawun kariya daga danshi da gurɓata.

Duk da haka, kunshin EMC gabaɗaya sun fi tsada fiye da PLCC. RF-A3E31 yana amfani da EMC, yana mai da shi manufa don aikace-aikacen mota inda dogaro na dogon lokaci yake da mahimmanci.

10. Tambayoyin da Aka Yi Yawan yi (FAQ)

Tambaya 1: Zan iya tuka wannan LED a 350mA ci gaba ba tare da heatsink ba?

A 350mA, rarrabuwar wutar ~1.1W. Ba tare da heatsink ba, zafin junction zai iya wuce 150°C a yanayin ɗaki, yana haifar da lalacewa cikin sauri. Ana buƙatar heatsink ko MCPCB don aiki ci gaba.

Tambaya 2: Menene zafin launi na yau da kullun?

Rabe-raben launi (VM1-VM7) sun yi daidai da fari mai sanyi kusan 5000-6500K. CCT na ainihi ya dogara da rabe.

Tambaya 3: Shin wannan LED ya dace da dabaru na 5V?

Wutar lantarki ta gaba ita ce 2.8-3.4V. Ana buƙatar resistor mai iyakance gudu lokacin tuka daga 5V. Misali, tare da VF=3V da IF=350mA, R = (5-3)/0.35 = 5.7Ω (yi amfani da 5.6Ω na yau da kullun). Tabbatar da ƙimar wutar resistor (0.7W).

Tambaya 4: Nawa LEDs za a iya sanya a jere?

A tsarin mota tare da wutar 12V, yawanci LEDs 3-4 a jere (12V - driver dropout). Tare da VF=3.2V, 3 a jere yana ba da ~9.6V yana barin sarari don driver.

Tambaya 5: Shin LED yana buƙatar kariyar ESD?

Ko da yake an ƙididdige shi don 8kV HBM, ana ba da shawarar ƙarin kariyar ESD akan allon (misali, diode TVS) don aikace-aikacen mota don tabbatar da ƙarfi a kan wutar lantarki mai wucewa.

11. Nazarin Harka na Aikace-aikace: Hasken Gudu na Rana (DRL)

Wani tsarin DRL na yau da kullun yana amfani da LEDs farin da yawa da ke aiki da driver na gudu akai. RF-A3E31-W60H-B3, tare da kusurwar gani mai faɗi da gudun haske mai girma, za a iya amfani da shi a cikin jerin layi na LEDs 6-8. Kowanne LED yana aiki a 350mA, yana samar da jimlar ~800-1200 lumens. Ana ɗora LEDs akan MCPCB tare da haɗin zafi zuwa gidan aluminum. Mai sauƙin buck ko driver na layi (misali, TPS92518) yana daidaita gudu. Kusurwar gani mai faɗi tana tabbatar da bin ka'idodin ECE R87 don rarraba haske na DRL. Cancantar AEC-Q102 tana ba da kwarin gwiwa a yanayin -40°C zuwa 85°C.

12. Ƙa'idar Aiki

LED fari yana aiki bisa ƙa'idar canza phosphor. Guntu LED shuɗi InGaN/GaN yana fitar da haske shuɗi a kusan 450 nm. Wannan haske shuɗi yana wucewa ta hanyar phosphor mai fitar da rawaya (yawanci YAG:Ce) wanda ke ɗaukar wani ɓangare na haske shuɗi kuma ya sake fitarwa a cikin bakan rawaya-kore mai faɗi (500-700 nm). Haɗin haske shuɗi da aka watsa da haske rawaya wanda phosphor ya canza yana samar da haske fari. Rarraba bakan daidai yana ƙayyade zafin launi da aka haɗa (CCT) da ma'aunin nuna launi (CRI). Ana haɗa phosphor da silicone kuma a watsa shi akan guntu yayin masana'anta. Canje-canjen zafi yana shafar ingancin guntu LED da ingancin phosphor quantum, yana haifar da ƙananan canje-canjen launi kamar yadda aka nuna a cikin ƙirar aiki.

13. Hanyoyin Ci gaba a Hasken LED na Mota

Kasuwar LED na mota tana tafiya zuwa inganci mafi girma, ƙarami kunshin, da haɗin kai mai yawa. Muhimman hanyoyi:

• Jerin Micro-LEDdon fitilolin gaba na ADB tare da sarrafa matakin pixel.
• LEDs masu haske mai girmaya wuce 200 lm/mm² don haske kamar laser.
• Samfuran LED masu hankalitare da haɗin drivers da sadarwa (LIN, CAN).
• Rage juriya na zafita amfani da sabbin kayan substrate (misali, AlN, SiC).
• Ingantaccen dogarota hanyar haɗaɗɗen rufi (silicone, hybrid).
• Hasken da ya shafi ɗan adamtare da CCT mai daidaitawa don kwanciyar hankali na ciki.

RF-A3E31, tare da kunshin EMC da takaddun shaida AEC-Q102, yana da matsayi mai kyau don ƙarni na yanzu na hasken waje na mota. Ci gaba na gaba na iya buƙatar ƙarami har ma da sawun (misali, 2016, 1616) da kuma gudun haske mafi girma don fitilolin matrix.