Ƙayyadaddun Farar LED PLCC2 - Girma 2.8x3.5x0.7mm - Ƙarfin Lantarki 3.1V - Ƙarfi 612mW - AEC-Q101 Matsayin Mota

1. Bayanin Samfurin

Wannan farar LED an yi ta ne ta hanyar amfani da chip shuɗi da aka haɗa da phosphor don samar da hasken fari. Na'urar tana cikin ƙaramin fakitin PLCC2 mai auna 2.80mm × 3.50mm × 0.70mm, yana sa ta dace da amfani da hasken ciki da waje na mota inda sarari ke da ƙuntatawa. Tare da kusurwar gani mai faɗi sosai na digiri 120 da kuma bin ka'idodin gwajin damuwa na AEC-Q101, wannan LED an tsara shi don yanayin dogara mai girma. Matsayin hankali na danshi ya kai mataki na 2, kuma samfurin ya cika buƙatun RoHS da REACH.

2. Siffofi na Fasaha da Fassara

2.1 Halayen Lantarki

A yanayin gwaji na IF = 150mA da Ts = 25°C, ƙarfin lantarki na gaba (VF) yana daga 2.8V (mafi ƙanƙanta) zuwa 3.4V (mafi girma), tare da ƙimar al'ada ta 3.1V. Halin baya (IR) a VR = 5V an iyakance shi zuwa mafi girma na 10µA. Matsayin ɓata wutar lantarki (PD) shine 612mW. Madaidaicin halin gaba mai ƙarfi shine 180mA, yayin da kololuwar halin gaba (1/10 aiki, bugun 10ms) na iya kaiwa 350mA. Bai kamata ƙarfin lantarkin baya ya wuce 5V ba. Kewayon zazzabin aiki shine -40°C zuwa +110°C, kuma zazzabin ajiya iri ɗaya ne. Matsayin haɗin gwiwa (TJ) mafi girma shine 125°C. Waɗannan sigogi suna tabbatar da aiki mai ƙarfi a ƙarƙashin yanayin zafi na mota.

2.2 Halayen Haske

Hasken haske (Φ) a IF = 150mA yana daga 55.3 lm (mafi ƙanƙanta) zuwa 75.3 lm (mafi girma), tare da ƙimar al'ada ta 65 lm. Kusurwar gani mai faɗi na digiri 120 (2θ1/2) yana ba da rarraba haske iri ɗaya. Launi an bayyana shi ta hanyar bin chromaticity 60N, tare da haɗin kai kamar yadda aka nuna a zanen CIE. Rabar bakan al'ada tana kaiwa kusan 450nm (shuɗi) da kuma faffadan phosphor a kusan 550-600nm, yana ba da bayyanar fari mai sanyi.

2.3 Halayen Zazzabi

Matsayin juriyar zafi daga haɗin gwiwa zuwa wurin solder (RTHJ-S) yawanci shine 21°C/W. Wannan ƙananan juriyar zafi yana ba da damar ɓata zafi yadda ya kamata, wanda ke da mahimmanci don kiyaye daidaiton haske da tabbatar da tsawon rayuwa a aikace-aikacen mota. Masu zane dole ne su tabbatar cewa zazzabin wurin solder bai wuce mafi girman ƙididdiga ba, kuma zazzabin haɗin gwiwa ya kasance ƙasa da 125°C.

3. Tsarin Binning

3.1 Bins na Ƙarfin Lantarki na Gaba da Hasken Haske

A IF = 150mA, ƙarfin lantarki na gaba ya kasu zuwa bins shida: G1 (2.8-2.9V), G2 (2.9-3.0V), H1 (3.0-3.1V), H2 (3.1-3.2V), I1 (3.2-3.3V), I2 (3.3-3.4V). Hasken haske ya kasu zuwa bins uku: PA (55.3-61.2 lm), PB (61.2-67.8 lm), QA (67.8-75.3 lm). Wannan binning yana ba abokan ciniki damar zaɓar na'urori masu juriya mai tsauri don daidaiton fitar da haske da halayen lantarki a cikin tsararru.

3.2 Binning na Chromaticity

Zanen CIE chromaticity yana nuna bin 60N tare da haɗin kai huɗu: (0.3157,0.3211), (0.3142,0.3430), (0.3311,0.3584), (0.3301,0.3337). Wannan bin yana dacewa da wani yanki na farin launi da ya dace da hasken sigina da nuni na mota. Matsayin haƙuri na auna haɗin kai shine ±0.005.

4. Binciken Ƙididdigar Ayyuka

4.1 Ƙarfin Lantarki na Gaba vs. Halin Gaba (I-V Curve)

Hoto 1-7 yana nuna dangantakar I-V mai haɓaka. A 2.2V halin yanzu ya kusan sifili; a 3.0V halin yanzu ya kai kusan 100mA; a 3.2V ya kai 150mA; kuma a 3.4V ya wuce 200mA. Wannan ƙididdiga tana taimaka wa masu zane su hango canjin halin yanzu tare da ƙarfin lantarki da zaɓar masu juriya masu dacewa.

4.2 Halin Gaba vs. Ƙarfin Dangantaka

Yayin da halin gaba ya ƙaru daga 0 zuwa 200mA, ƙarfin dangantaka yana ƙaruwa kusan kai tsaye, yana kaiwa kusan 125% a 200mA idan aka kwatanta da 100% a 150mA. Wannan daidaiton yana sauƙaƙa sarrafa haske ta hanyar canjin halin yanzu.

4.3 Tasirin Zazzabi

Hotuna 1-9 da 1-10 suna nuna tasirin zazzabin solder. Hasken haske mai dangantaka yana raguwa a hankali daga 100% a 25°C zuwa kusan 70% a 120°C, yana nuna raguwar zazzabi. Ƙididdigar rage halin gaba ta nuna cewa a Ts=110°C, mafi girman halin ci gaba ya ragu zuwa kusan 150mA. Hoto 1-11 yana nuna ƙarfin lantarki na gaba yana raguwa tare da ƙaruwar zazzabi (ƙididdigar zazzabi mara kyau). Hoto 1-12 yana nuna canjin launi tare da zazzabi: haɗin kai CIE yana motsawa kadan zuwa X da Y mafi girma yayin da zazzabi ya tashi (canji ja). Waɗannan ƙididdigar suna da mahimmanci don sarrafa zazzabi da daidaiton bayyanar launi.

4.4 Tsarin Hasken Radiyo da Bakan

Hoto 1-13 yana nuna tsarin haske irin na Lambertian tare da ƙarfin dangantaka yana raguwa zuwa 50% a kusan ±60° daga axis. Bakan (Hoto 1-14) yana nuna kololuwa shuɗi a kusan 450nm da kuma faffadan phosphor daga 500nm zuwa 700nm, tare da ƙarfin dangantaka daidaita zuwa 1.0 a kololuwa. Wannan bakan shine na al'ada ga farar LEDs da aka canza ta phosphor.

5. Bayanin Injiniya da Marufi

5.1 Girman Fakitin da Tsarin Solder

Fakitin yana da hangen sama na 2.80mm × 3.50mm, tare da tsayi na 0.70mm. Hangen ƙasa yana nuna pads biyu: pad anode (mafi girma, 1.05mm × 0.55mm) da pad cathode (2.00mm × 0.55mm). Ana nuna polarity ta hanyar kusurwa mai karkace a fakitin. An ba da tsarin solder da aka bada shawara a Hoto 1-5, tare da girma 2.45mm (faɗi) da 1.50mm (tsayi) don pad anode, da 2.30mm (faɗi) da 1.05mm (tsayi) don pad cathode. Haƙuri shine ±0.2mm sai dai in an faɗi.

5.2 Girman Teburin Jigilar Kaya da Reel

LEDs ana bayar da su a kan tef da reel tare da 4000 guda a kowane reel. Faɗin tef ɗin jigilar kaya shine 8.0±0.1mm, tare da alkiblar ciyarwa da alamar polarity. Reel yana da diamita na waje na 178±1mm, diamita na hub 60±1mm, da kauri 13.0±0.5mm. Lakabi a kan reel ya ƙunshi lambar sashi, lambar lot, lambar bin (flux, chromaticity, voltage), adadi, da lambar kwanan wata.

5.3 Marufi Mai Juriya da Danshi

Samfurin an tattara shi a cikin jakar hana danshi tare da bushewa da katin nuna danshi. Matsayin hankali na danshi shine 2, don haka bayan buɗe jakar, ya kamata a yi amfani da LEDs a cikin sa'o'i 24 idan an adana su a ≤30°C da ≤60% RH. Idan yanayin ajiya ya wuce, ana buƙatar gasa a 60±5°C na > sa'o'i 24 kafin amfani.

6. Jagororin Solder da Haɗa

6.1 Tsarin Solder na Reflow

Tsarin solder na reflow da aka bada shawara ya dogara da ka'idodin JEDEC. Matsakaicin hauhawar hauhawar daga 150°C zuwa 200°C bai kamata ya wuce 3°C/s ba. Preheating (150°C zuwa 200°C) yana ɗaukar daƙiƙa 60-120. Za a kiyaye zazzabi sama da 217°C (TL) na matsakaicin daƙiƙa 60. Kololuwar zazzabi (TP) shine 260°C tare da matsakaicin lokaci na daƙiƙa 10. Matsakaicin sanyaya bai kamata ya wuce 6°C/s ba. An ba da izinin zagayowar reflow biyu kawai, kuma idan fiye da sa'o'i 24 suka wuce tsakanin zagayowar, LEDs na iya lalacewa saboda shan danshi.

6.2 Solder da Hannu da Gyara

Idan ana buƙatar solder da hannu, dole ne zazzabin ƙarfe ya kasance ƙasa da 300°C kuma lokacin tuntuɓar ya kasance ƙasa da daƙiƙa 3. An ba da izinin aikin solder hannu ɗaya kawai. Ana ƙin gyara bayan reflow; idan ba zai yuwu ba, ya kamata a yi amfani da ƙarfe mai kai biyu, kuma dole ne a tabbatar da tasirin a kan siffofin na'urar kafin a yi.

6.3 Kariya ta Kulawa

Encapsulant shine silicone, mai laushi kuma yana da sauƙin lalacewa ta matsin inji. Kada a yi matsin lamba mai ƙarfi a saman ruwan tabarau yayin ɗauka; yi amfani da ƙarfin bututu mai dacewa. PCB bai kamata ya karkace yayin haɗawa ba. Bayan solder, ka nisanci matsin inji da sanyaya mai sauri. Muhalli na aiki dole ne ya kasance da abun ciki na sulfur ƙasa da 100 ppm, da abun ciki na halogen (bromine <900 ppm, chlorine <900 ppm, jimlar <1500 ppm). VOCs daga kayan haɗin na iya canza launin silicone; don haka, an bada shawara a gwada dacewa. Ana bada shawara a tsaftace da isopropyl alcohol; ba a bada shawara a tsaftace da ultrasonic ba. Dole ne a kiyaye kariyar ESD (HBM ≥ 8000V) yayin kulawa.

7. Bayanin Marufi da Oda

Marufi na yau da kullun shine 4000 guda a kowane reel a kan tef ɗin 8mm. Ana rufe kowane reel a cikin jakar hana danshi tare da bushewa da lakabi. Akwatin kwali na waje yana ɗauke da reels da yawa. Lakabin ya ƙunshi Lambar Sashi (RF-A1T28-W6SE-A6), Lambar Spec, Lambar Lot, Lambar Bin (VF, Φ, XY), Adadi, da Kwanan wata. Abokan ciniki dole ne su ƙayyade bins ɗin flux da voltage da ake so yayin yin oda don tabbatar da daidaito.

8. Shawarwarin Aikace-aikace

8.1 Aikace-aikace na Yau da Kullun

Wannan LED an tsara shi musamman don hasken ciki da waje na mota, gami da alamun dash, fitulun taswira, hasken yanayi, sigina, da fitulun ado na ciki. Kusurwar gani mai faɗi da babban dogaro sun sa ta dace da hasken aiki da ado inda daidaiton launi da haske ke da mahimmanci.

8.2 La'akari da Zane

Lokacin zanen da'irar tuki, tabbatar da cewa halin gaba bai wuce matsakaicin ƙididdiga na 180mA ba. Yi amfani da resistor mai iyakance halin yanzu ko mai tuki na halin yanzu mai ci gaba don hana guduwar zazzabi. Yin amfani da bayanan zafi yana da mahimmanci; dole ne a kiyaye zazzabin wurin solder ƙasa da 110°C don kula da zazzabin haɗin gwiwa a ƙarƙashin 125°C. Dole ne a yi la'akari da kewayon zazzabin aiki mai faɗi (-40°C zuwa +110°C) don faɗaɗa da ƙanƙanta mai zafi. Don tsararru a jere / layi daya, daidaita bins ɗin ƙarfin lantarki na gaba don daidaita rarraba halin yanzu. Idan ana buƙatar bayyanar launi daidai a cikin kewayon zazzabi duka, dole ne a yi la'akari da canjin launi tare da zazzabi.

9. Kwatancen Fasaha da Fa'idodin Gasa

Idan aka kwatanta da LEDs na PLCC2 na yau da kullun, wannan na'urar tana da cancantar mota AEC-Q101, wanda ke ba da tabbacin babban dogaro a ƙarƙashin girgizar zazzabi, babban danshi, da gwaje-gwaje na tsawon rai. Kusurwar gani 120° ya fi yawancin samfuran da yawa faɗi (yawanci 110°), yana ba da haske mai daidaituwa. Juriya ta zafi na 21°C/W tana da ƙananan gaske ga wannan girman fakitin, yana sauƙaƙa ɓata zafi mai kyau. Samuwar binning mai tsauri (matakan ƙarfin lantarki na 0.1V, matakan flux na ~6 lm) yana ba da babban yawan amfani a aikace-aikacen LED da yawa. Kariyar ESD na 8000V (HBM) ya wuce yawan ƙididdiga na 2000V, yana rage rashin nasara masu alaƙa da ESD yayin haɗawa.

10. Tambayoyi Akai-akai

Q: Menene mafi girman halin yanzu da zan iya tuka wannan LED akai?
A: Mafi girman halin gaba mai ƙarfi shine 180mA, amma halin aiki da aka bada shawara shine 150mA. Don aiki mai bugu, har zuwa 350mA a madaidaicin aiki na 1/10 an yarda.

Q: Ta yaya zan kula da LED don guje wa lalacewa?
A: Ka nisanci taɓa ruwan tabarau na silicone. Yi amfani da tweezers a gefe. Tabbatar da kariyar ESD (madaurin wuyan hannu, filin aiki mai gudanarwa). Ajiye a bushe yanayi kuma gasa idan ana zargin shan danshi.

Q: Zan iya amfani da wannan LED a aikace-aikacen mota na waje?
A: E, an tsara na'urar don hasken waje bisa ga AEC-Q101. Duk da haka, tabbatar da cewa kayan haɗin suna ba da ingantaccen sarrafa zazzabi da kariya daga gurɓataccen muhalli.

Q: Menene ma'anar lambar bin "60N"?
A: Wani bin chromaticity ne a cikin sararin launi na CIE 1931 wanda aka ayyana ta haɗin kai huɗu. An jera takamaiman haɗin kai a cikin takardar bayanai. Wannan bin yana dacewa da yanki na farin launi da ake amfani da shi yawanci don sigina.

11. Shari'o'in Aikace-aikace na Aiki

Misali 1: Hasken Yanayi na Cikin Mota
Wani OEM ya buƙaci ƙwanƙolin haske na faɗin 10mm don hasken ƙofar. Yin amfani da LEDs 8 a kowane ƙwanƙolin a 150mA, jimlar flux ɗin ya kai ~520lm. Tare da zane mai zafi a hankali (PCB aluminum), zazzabin haɗin gwiwa ya kasance ƙasa da 90°C. Kusurwar gani mai faɗi ta tabbatar da haske mai daidaituwa ba tare da wurare masu zafi ba.

Misali 2: Alamar Sigina
Wani sigina ya yi amfani da LEDs 6 a jere tare da mai tuki na halin yanzu ci gaba a 150mA. Binning na ƙarfin lantarki (H1) ya tabbatar da rashin daidaituwa mafi ƙanƙanta na VF. Kusurwar gani 120° ta ba da ganuwa isa bisa ga ƙa'idodin mota. Cancantar AEC-Q101 ta ba da kwarin gwiwa game da dogaro na dogon lokaci a ƙarƙashin hawan zazzabi.

12. Ƙa'idar Aiki

Wannan farar LED ta dogara ne akan chip shuɗi na InGaN (indium gallium nitride) wanda ke fitar da haske a kusan 450nm. Chip ɗin an rufe shi da phosphor YAG (yttrium aluminum garnet) wanda ke ɗaukar wani ɓangare na hasken shuɗi kuma ya sake fitar da shi azaman hasken rawaya. Haɗin ragowar hasken shuɗi da hasken rawaya yana samar da hasken fari. Zazzabin launi da ƙididdigar nuna an ƙaddara ta abun ciki da kauri na phosphor. Fakitin PLCC2 yana ba da kariyar inji, haɗin lantarki, da rami mai haske don haɓaka fitar da haske.

13. Hanyoyin Fasaha da Hasashen Gaba

Farar LEDs suna ci gaba zuwa mafi kyawun inganci, ingancin launi, da ƙaramin marufi. Hanyar a cikin hasken mota tana zuwa ga ƙarami, haɗin kai tare da sarrafa wayo (misali, PWM dimming, daidaita launi), da bin ƙa'idodin dogaro masu tsauri (AEC-Q102 don LEDs na mota). Ci gaba na gaba na iya haɗawa da marufi na chip-scale (CSP) don ƙaramin filin, mafi yawan flux, da ingantaccen aikin zazzabi. Bugu da ƙari, ci gaban phosphor yana ba da damar binning na launi mafi daidai da raguwar zazzabi mafi ƙasƙanci. Ana kuma bincika amfani da kayan ƙasa na yumbu ko silicone-based encapsulants tare da haɓaka juriya na UV don tsawaita rayuwa a yanayi mai wahala.