LED RGB SMD 1.6x1.7x1.6mm - Ƙarfin Lantarki R:1.7-2.4V G:2.5-3.3V B:2.5-3.3V - Power 48-49.5mW - Cikakken Launi Bayanin Fasaha na Turanci

1. Bayanin Samfur

Wannan na'urar LED cikakken-launi ita ce RGB SMD (Na'urar Haɗa Sama) wacce aka ƙera don aikace-aikace masu girma tare da fuska baki. Samfur yana auna 1.6mm x 1.7mm x 1.6mm, yana dacewa da ƙwaƙƙwaran pixels a cikin allon bidiyo na waje da cikin gida. Kallon kusurwa mai faɗi 110° yana tabbatar da rarraba haske daidai a kan manyan nuni. LED tana da ƙarfin haske mai girma, ƙarancin lalata wutar, aminci mai kyau, da tsawon rayuwa. An ƙididdige ta IPX6 mai hana ruwa kuma ta cika Matsayin Moisture Sensitivity Level 5a (MSL5a), yana buƙatar kulawa mai kyau kafin walda. Abubuwan sun dace da RoHS kuma sun dace da aikin walda na sake kunnawa ba tare da gubar ba. Fuskantar matte tana rage haske da inganta bambanci a cikin hasken rana kai tsaye.

2. Binciken Siffofin Fasaha

2.1 Halayen Lantarki da Haske

A yanayin gwaji na 25°C (Ts=25°C), an ƙayyade ma'aunin lantarki da haske ga kowane chip (R, G, B). Halin juyawa (IR) a VR=5V an iyakance shi zuwa 6 μA mafi girma ga duk tashoshi, yana tabbatar da ƙarancin fashewa. Girman wutar lantarki (VF) sune: Ja: 1.7V mafi ƙanƙanta zuwa 2.4V mafi girma; Kore: 2.5V mafi ƙanƙanta zuwa 3.3V mafi girma; Shudi: 2.5V mafi ƙanƙanta zuwa 3.3V mafi girma. Tsibin tsawon raƙuman haske (λD) sune: Ja 617–628 nm (5nm kowane tsibi), Kore 520–545 nm (3nm kowane tsibi), Shudi 460–475 nm (3nm kowane tsibi). Faɗin radiation (Δλ) ga Ja 24 nm, Kore 38 nm, Shudi 30 nm. Ƙarfin haske (IV) a gwajin wutar (Ja 10mA, Kore 10mA, Shudi 5mA) yana nuna mafi ƙanƙanta, matsakaici, da mafi girma dabi'u: Ja: min 120 mcd, avg 195 mcd, max 310 mcd; Kore: min 290 mcd, avg 470 mcd, max 750 mcd; Shudi: min 20 mcd, avg 35 mcd, max 55 mcd. Rabon tsibi ga kowane launi 1:1.3. Kallon kusurwa (2θ1/2) 110° daidai.

2.2 Matsakaicin Matsakaici Masu Izini

Matsakaicin matsakaici masu izini a Ts=25°C suna bayyana iyakokin aminci. Girman wutar gaba (IF) mafi girma: Ja 20 mA, Kore 15 mA, Shudi 15 mA. Girman wutar juyawa (VR) mafi girma: 5 V kowane tashoshi. Yanayin zafin aiki: -30°C zuwa +85°C. Yanayin zafin ajiya: -40°C zuwa +100°C. Lalata wutar (PD) mafi girma: Ja 48 mW, Kore 49.5 mW, Shudi 49.5 mW. Jimlar zafin junction (TJ) mafi girma: 100°C ga duk chips. Kariyar wutar lantarki (ESD) (HBM) an ƙididdige ta 1000V, yana buƙatar matakan hana lantarki na yau da kullun yayin sarrafawa.

2.3 Bayanin Tsarin Tsibi

LED an tsara ta ta hanyar tsawon raƙuman haske da ƙarfin haske zuwa tsibin. Tsibin tsawon raƙuman haske ga Ja 5 nm kowane tsibi, ga Kore da Shudi 3 nm kowane tsibi. Tsibin ƙarfin haske suna biye da rabo 1:1.3, ma'ana kowane matsayi yana rufe iyaka inda babba yake 1.3 sau mafi ƙanƙanta. Wannan tsarin tsibi yana tabbatar da daidaiton launi da haske tsakanin LEDs da yawa a cikin nuni. Lambobin tsibi na musamman ana buga su akan lakabin samfur. Abokan ciniki dole ne su zaɓi tsibin da suka dace don aikace-aikacen su don cimma daidaito na gani.

3. Binciken Lanƙwason Aiki

3.1 Girman Wutar Gaba vs. Girman Wutar Gaba (I-V Lanƙwasa)

Lanƙwason I-V na yau da kullun suna nuna dangantaka mara mizani ta al'ada ga LEDs. A ƙaramin wutar lantarki, wutar tana da ƙanƙanta; sama da ƙofar wutar lantarki (kusan 1.8V ga Ja, 2.6V ga Kore/Shudi), wutar tana ƙaruwa da sauri. Lanƙwason an ba da su ga chips Ja, Kore, da Shudi, suna nuna cewa wutar lantarki ta bambanta da launi. Masu ƙira dole ne su yi la'akari da waɗannan bambance-bambance yayin fitar da LEDs a cikin jerin ko daidaitattun tsari.

3.2 Girman Wutar Gaba vs. Ƙarfin Haske Dangantaka

Ƙarfin haske dangantaka yana ƙaruwa tare da wutar gaba amma yana nuna ma'auni a manyan wutar. Ga chip Ja, ƙarfin haske dangantaka a 60 mA kusan 500% idan aka kwatanta da 10 mA. Kore da Shudi suna nuna irin wannan al'ada amma tare da mabambantan ganga. Wannan rashin daidaito dole ne a yi la'akari da shi yayin ƙira PWM dimming ko tsarin wutar akai-akai.

3.3 Ƙarfin Haske vs. Yanayin Zafin Waje

Yayin da yanayin zafin waje ya tashi, ƙarfin haske yana raguwa. A 85°C, ƙarfin haske dangantaka ya faɗi zuwa kusan 60–70% na darajar 25°C, dangane da launi. Ja yana nuna mafi ƙarancin raguwa, yayin da Kore da Shudi suke raguwa da yawa. Gudanar da zafi yana da mahimmanci don kiyaye daidaiton haske a cikin yanayin zafin.

3.4 Rarraba Bakan

Lanƙwason rarraba bakan suna nuna ƙarfin fitarwa dangantaka da tsawon raƙuman haske. Ja yana da kololuwa kusa da 620–625 nm, Kore kusa da 530 nm, Shudi kusa da 465 nm. Faɗin bakan (faɗin rabin-ikon) sun dace da dabi'un Δλ da aka bayyana. Wannan tsarkin bakan yana tabbatar da kyakkyawan gamut na launi don aikace-aikacen nuni.

3.5 Kusurwar Radiation

Lanƙwason bangaskiya (X-X da Y-Y gatura) suna nuna ƙarfin haske dangantaka da kusurwa. Kallon kusurwa 110° (rabin kusurwa) ya dace da kusurwar inda ƙarfi ya faɗi zuwa 50% na darajar axis. Tsarin radiation yana kusan Lambertian, yana ba da rarraba haske mai faɗi da daidaituwa wanda ya dace da allon waje.

4. Bayani Kan Injiniya da Marufi

4.1 Girman Fakitin da Ƙarfin Polarity

Girman fakitin: kallon sama yana nuna jiki 1.6 mm x 1.7 mm tare da tsawo 1.15 mm. Kallon gefe yana nuna jimlar tsawo 1.6 mm. Kallon ƙasa ya haɗa da pads huɗu masu lakabi 1+ (anode gama), 2R- (cathode Ja), 3G- (cathode Kore), 4B- (cathode Shudi). Alamar polarity (PIN-MARK) an nuna a sarari. Tsarin walda (PCB sawun da aka ba da shawarar) an ba da shi tare da ma'auni: 0.7 mm x 0.5 mm pads tare da tazara na musamman. Shawarar cikawa da manne: tsawo cikawa dole ne ≥ 0.65 mm. Duk haƙuri ±0.1 mm sai dai in an bayyana akasin haka.

4.2 Girman Tef na Jigilar Kaya da Ril

LEDs an tattara su a cikin tef na jigilar kaya daidai da kayan aikin pick-and-place na yau da kullun. Girman ril: A=400±2 mm, B=100.0±0.4 mm, C=14.3±0.3 mm, D=2.6±0.2 mm, E=12.4±0.3 mm, F=8.6+0.2/-0.3 mm, T=1.9±0.2 mm. Kowane ril ya ƙunshi 15,500 guda. Zanen aljihu tef yana tabbatar da daidaitaccen shugabanci da kariya yayin sufuri.

4.3 Lakabi da Jakar Kariya daga Danshi

Kowane ril an lakaba shi da lambar sashi, lambar yawa, tsibin ƙarfin haske, tsibin wutar lantarki, tsibin tsawon raƙuman haske, wutar gaba, adadi, da kwanan wata. Marufin ya haɗa da mai bushewa da kati mai nuna danshi (HIC) a cikin jakar aluminum anti-static mai hana danshi. Jakar an rufe ta da vacuum don kiyaye ƙarancin danshi (<10% RH) yayin ajiya. Yanayin ajiya: zafin jiki ≤30°C, danshi ≤60% RH kafin buɗewa; bayan buɗewa, yi amfani da cikin 12 hours kuma adana a ≤30°C / ≤10% RH tare da buƙatar gasa kafin amfani na gaba.

5. Jagororin Walda da Haɗuwa

5.1 Tsarin Walda na Reflow

Tsarin reflow da aka ba da shawarar ya dogara ne akan walda ba tare da gubar ba tare da kololuwar zafin jiki (TP) na 245°C (max 10 seconds). Preheating daga 150°C zuwa 200°C a kan 60-120 seconds. Ramp-up rate ≤4°C/s zuwa TP, da sanyaya rate ≤6°C/s. Lokacin sama da 217°C (TL) dole ne ya wuce 60 seconds. Jimlar lokaci daga 25°C zuwa kololuwa ≤8 minutes. Za a iya sake kewayawa reflow guda ɗaya kawai. Ana ba da shawarar amfani da yanayin nitrogen don hana iskar oxygen da lalacewar gani.

5.2 Walda da Hannu da Gyara

Idan walda da hannu ya zama dole, yi amfani da ƙarfe na walda a<300°C na ƙasa da 3 seconds, kuma yi sau ɗaya kawai. Don gyara, a yi amfani da ƙarfe mai kai biyu, kuma dole ne a tabbatar da tasiri akan halayen LED tukuna. Ana hana gyara bayan reflow.

5.3 Tsaftacewa

Kada a yi amfani da ruwa, benzene, ko thinner. Ana ba da shawarar wanki mai tsaftacewa shine isopropyl alcohol (IPA). Ka guje wa wanki da ke ɗauke da chlorine (Cl) ko sulfur (S). Tabbatar cewa tsaftacewa baya lalata saman LED ko fakitin.

6. Bayanin Marufi da Oda

Marufi na yau da kullun: 15,500 guda kowane ril. Kowane ril ana sanya shi a cikin jakar hana danshi tare da mai bushewa da HIC. An rufe jakar sannan a tattara shi a cikin kwalin kwali (ma'aunin da aka bayyana akwai a cikin bayanan). Tsarin lakabi ya haɗa da duk lambobin bin diddigi masu mahimmanci. Don oda, cikakken lambar sashi ya haɗa da lambobin tsibi. Abokan ciniki su ƙayyade tsibin tsawon raƙuman haske da ƙarfin haske da ake buƙata don aikace-aikacen su. Samfurin an rarraba shi azaman MSL5a, don haka sarrafa danshi mai tsauri ya zama dole.

7. Jagorancin Aikace-aikace

7.1 Aikace-aikace na Yau da Kullun

Allon bidiyo cikakken-launi na waje (ƙananan pixels), haske na ado na ciki da waje, kayan wasanni, da alamomi na gabaɗaya. Fuskar baƙar fata mai girma tana inganta bambanci da ake gani a cikin yanayin waje. IPX6 mai hana ruwa yana ba da damar amfani a wurare da aka fallasa tare da ruwan sama ko ruwa.

7.2 La'akari da Ƙira

Kowane chip LED dole ne a sarrafa shi ta hanyar tushen wutar akai-akai, kuma wutar gaba ba za ta taɓa wuce matsakaicin matsakaici masu izini ba. A cikin matrix drive, tabbatar da wutar juyawa ba ta wuce 5V ba. Gudanar da zafi: kiyaye zafin saman LED ƙasa da 55°C da zafin haɗin walda ƙasa da 75°C don aminci na dogon lokaci. Yi amfani da ingantaccen zafi da shimfidar PCB tare da isasshen yankin jan ƙarfe. Ka guje wa haɗin jeri na LEDs masu launi daban-daban saboda bambancin wutar lantarki; yi amfani da masu sarrafa wutar akai-akai masu zaman kansu kowane launi. Don manyan nuni, yi la'akari da tsibi da tsufa don tabbatar da daidaito. A cikin yanayin danshi ko mai lalata (bakin teku, wuraren zafi), ana iya buƙatar ƙarin siminti na kariya.

8. Kwatancen Fasaha tare da Magani Masu Gasa

Idan aka kwatanta da daidaitattun RGB SMD LEDs ba tare da fuskar baƙar fata ba, wannan samfur yana ba da matsayin bambanci mafi girma a cikin hasken rana saboda fakitin baƙi. Matsayin IPX6 ya fi na yau da kullun IPX4 ko LEDs marasa hana ruwa. Kallon kusurwa mai faɗi (110°) ya dace da ƙa'idodin masana'antu don nuni na waje. Duk da haka, mahimmanci na MSL5a ya fi na yau da kullun MSL3, yana buƙatar sarrafa danshi mai tsauri. Girmar tsibi (5nm ga Ja, 3nm ga Kore/Shudi, 1:1.3 rabon ƙarfi) yana kwatankwacin manyan LEDs nuni.

9. Tambayoyi Masu Yawan Tambaya

Q: Menene shawarar rayuwar ajiya kafin buɗewa?
A: Har zuwa watanni 6 a ≤30°C da ≤60% RH.

Q: Zan iya amfani da wannan LED a cikin tsarin matrix drive tare da multiplexing?
A: Ee, amma tabbatar da wutar juyawa ba ta wuce 5V ba, kuma yi amfani da iyakance wutar da ta dace.

Q: Menene kiyaye lumen a tsawon rayuwa?
A: Rayuwar L70 na yau da kullun ta dogara da wutar tuki da yanayin zafi; koma ga bayanan aminci (sa'o'i 1000 a 85°C/85%RH bai nuna gazawa ba).

Q: Shin wannan samfur ya dace da amfani a waje?
A: Ee, tare da matsayin IPX6 da kewayon zafin jiki mai faɗi, an ƙera shi don allon waje.

Q: Zan iya sake reflow walda wannan LED sau biyu?
A: A'a, za a iya sake kewayawa reflow guda ɗaya kawai.

10. Misalan Aikace-aikace na Aiki

Misali 1: Nuni LED na waje mai ƙananan pixels (P4-P8)
Wani masana'anta ya ƙera na'ura 320x160 mm ta amfani da pixels 64x32 (RGB kowane pixel). Ta amfani da wannan LED, sun sami haske na 5000 nits a 20% duty cycle. Fuskar baƙar fata ta ba da bambanci mai girma ko da a cikin hasken rana. Tsibi mai kyau ya tabbatar da daidaiton launi a duk faɗin allon.

Misali 2: Hasken layi na ado don gine-gine
Wani kamfanin hasken gine-gine ya yi amfani da LED akan PCBs masu sassauƙa don ƙirƙirar tarkon RGB. Tare da kariyar IPX6, an shigar da tarkon a waje na gini ba tare da ƙarin siminti ba. Kallon kusurwa mai faɗi (110°) ya tabbatar da haske daidaituwa tare da facade.

11. Bayanin Ƙa'idar Aiki

Wannan LED ya ƙunshi matattara masu zaman kansu uku (Ja, Kore, Shudi) a cikin fakitin guda ɗaya tare da anode gama. Kowace matattara ita ce hadewar p-n wacce ke fitar da haske idan an ƙara wutar gaba. Tsawon raƙuman haske da aka fitar an ƙaddara shi ta hanyar kayan semiconductor: Ja yana amfani da AlInGaP, Kore da Shudi suna amfani da InGaN. Ruyin epoxy baƙi yana ɗaukar haske na waje don inganta bambanci na kunnawa/kashe. Lead ɗin an yi su da azurfa don iya walda kuma fakitin an ƙera shi don haɗa saman. Tsarin anode gama yana sauƙaƙa da'irar tuki ta amfani da wutar lantarki mai kyau ɗaya da tashoshi marasa kyau uku don sarrafa RGB.

12. Hanyoyin Fasaha da Duban Gaba

Cikakken-launi SMD LEDs suna ci gaba da raguwa cikin girman yayin da suke ƙara haske da bambanci. Wannan fakitin 1.6x1.7mm yana wakiltar samfurin zamani na yau da kullun don nuni na waje masu ƙananan pixels. Hanyoyi na gaba sun haɗa da kara ƙanƙanta (misali, 1.0x1.0mm), ingantacciyar aiki, da ingantaccen gudanar da zafi. Ana samun karɓuwar tsarin cathode gama (don rage wutar lantarki). Duk da haka, anode gama ya kasance sananne don nuni masu yawa. IPX6 da mafi girma matsayin hana ruwa (IPX8) suna zama daidaitattun aikace-aikacen waje. Ci gaban microLED na iya ƙalubalanci SMD LEDs don ƙanƙanta pixels, amma SMD ya kasance mai rinjaye don mafi yawan nuni na matsakaici zuwa babba saboda farashi da aminci.