LED PLCC-2 Fari Bayani - Girma 3.5x2.75x0.7mm - Wutar Lantarki 3.0-3.4V - Ƙarfi 0.2W

1. Bayanin Samfur

Wannan LED fari ya samo asali ne daga guntun shuɗi tare da fasahar canza phosphor, yana ba da inganci mai girma da kewayon zafin launi mai faɗi. Kunshin shine PLCC-2 na yau da kullun (plastic leaded chip carrier) mai girman 3.5mm × 2.75mm × 0.7mm, wanda ya dace da haɗuwa ta atomatik ta saman. Yana ba da haske na al'ada na 26-28 lumens a 60mA na gaba, tare da ƙarfin gaba na 3.0V zuwa 3.4V. Na'urar tana nuna kusurwar kallo mai faɗi na digiri 120, yana mai da shi manufa don haskakawa gabaɗaya da aikace-aikacen nuni. Yana yarda da RoHS kuma yana da matakin laushi na 3. LED yana samuwa a yawancin zafin launi: 3000K (ERP 2780-3110K), 4000K (ERP 3770-4330K), 5700K (ANSI 5350-6050K), 6000K (ERP 5740-6530K), da 6500K (ERP 6050-6950K). An tsara samfurin don aikace-aikace kamar nunin cikin gida, fitilu tubular, da haskakawa gabaɗaya. Lura: ba a ba da shawarar don igiyoyi masu sassauƙa ba saboda damuwa da ƙarfin injiniya.

2. Binciken Fasaha Mai Zurfi

2.1 Halayen Gani da Lantarki

A yanayin gwaji na Ts=25°C da IF=60mA, ƙarfin gaba na yau da kullun shine 3.12V (min 3.0V, max 3.4V). Reverse current a VR=5V yana da iyaka na 10μA, yana nuna gyara mai kyau. Haske mai yawa ga duk nau'ikan CCT ya kai 26.5lm (min 26lm, max 28lm), tare da sigar 3000K ya rage kadan zuwa 25.5lm (min 24lm, max 28lm). Ma'aunin launi (CRI) yana da 71.5 (min 70), wanda ya karɓu don haskakawa gabaɗaya amma ba don aikace-aikacen high-CRI ba. Juriyar zafi daga junction zuwa wurin solder (RthJ-S) shine 60°C/W, wanda dole ne a yi la'akari da shi a cikin ƙira ta zafi.

2.2 Matsakaicin Ƙarfin Ƙarfi

Ƙarfin wutar lantarki yana iyakance zuwa 204mW, ƙarfin gaba zuwa 65mA (peak 120mA tare da duty cycle 1/10, pulse width 0.1ms). Matsakaicin reverse voltage shine 5V. Juriyar ESD (HBM) shine 2000V, tare da sama da kashi 90% na samarwa a wannan matakin. Kewayon zafin aiki shine -40 zuwa +85°C, ajiya -40 zuwa +100°C, kuma matsakaicin zafin junction shine 110°C. Dole ne a kiyaye waɗannan ƙididdiga don tabbatar da dogaro.

3. Tsarin Binning

3.1 Binning na Ƙarfin Gaba da Haske Mai Yawa

A IF=60mA, an raba ƙarfin gaba zuwa ƙungiyoyi huɗu: H1 (3.0-3.1V), H2 (3.1-3.2V), I1 (3.2-3.3V), I2 (3.3-3.4V). An raba haske mai yawa ga duk CCTs kamar QIA (26-28lm). Binning mai ƙarfi yana sauƙaƙe aiki mai daidaituwa a cikin ƙirar aikace-aikace.

3.2 Binning na Launi

Tsarin launi na CIE 1931 yana nuna takamaiman bins guda biyar don daban-daban zafin launi: E30 (fari mai ɗumi mai ƙari, ~3000K), E40 (fari mai ɗumi, ~4000K), A57 (fari tsaka-tsaki, ~5700K), E60 (fari mai sanyi, ~6000K), E65 (fari na rana, ~6500K). Kowane bin yana da ma'anar haɗin kai huɗu (X1Y1 zuwa X4Y4) waɗanda ke ayyana yankin launi da aka karɓa. Misali, E30 yana da haɗin kai: X1=0.4357, Y1=0.4144; X2=0.4212, Y2=0.3837; X3=0.4443, Y3=0.3916; X4=0.4588, Y4=0.4223. Waɗannan bins suna tabbatar da daidaituwar launi a cikin daban-daban tsarin samarwa.

4. Binciken Kwatancen Aiki

4.1 Ƙarfin Gaba vs. Ƙarfin Gaba

Hoto 1-7 yana nuna alaƙar mai ƙarfi: yayin da ƙarfin gaba ya ƙaru daga 2.85V zuwa 3.20V, ƙarfin yana tashi daga kusa da sifili zuwa 70mA. A wurin aiki na yau da kullun na 3.12V, ƙarfin shine 60mA. Wannan kwatance yana da mahimmanci don ƙayyade madaidaicin resistor a cikin da'irar tuƙi mai ƙarfi na wutar lantarki.

4.2 Ƙarfin Dangantaka vs. Ƙarfin Gaba

Hoto 1-8 yana nuna haɓaka kusan layi madaidaici a cikin ƙarfin dangantaka daga 0% a 0mA zuwa 100% a 60mA, kuma bayan haka. Yin aiki sama da 60mA na iya ƙara haske amma yana iya rage rayuwa saboda haɓakar zafin junction.

4.3 Halayen Zafi

Hoto 1-9 yana nuna ƙarfin haske mai dangantaka yana raguwa tare da haɓaka zafin wurin solder: a 85°C, haske ya faɗi zuwa kusan 85% na ƙimar 25°C. Hoto 1-10 yana nuna raguwar matsakaicin ƙarfin gaba: a 85°C, ƙarfin da aka yarda shine kusan 40mA (vs 70mA a 25°C) don kiyaye zafin junction ƙasa da 110°C. Hoto 1-11 yana nuna ƙarfin gaba yana raguwa kaɗan tare da zafi (kimanin -2mV/°C). Waɗannan kwatance suna da mahimmanci don sarrafa zafi a cikin ƙirar fitilar.

4.4 Tsarin Radiation

Hoto 1-12 yana nuna tsarin radiation mai kama da Lambertian: ƙarfin dangantaka shine 100% a kusurwa 0° kuma yana faɗuwa zuwa 50% a kusan ±60°, yana tabbatar da kusurwar kallo 120°. Tsarin yana da daidaito, ya dace da haskakawa mai faɗi.

4.5 Rarraba Siffar Sama

Hoto 1-13 yana nuna rarraba ƙarfin siffar sama don 3000K, 4000K, da 6500K. Siffar 3000K tana da ƙarfin shuɗi mai ƙarfi a ~450nm da faffadan haske mai rawaya/ja na phosphor daga 550-650nm. Siffar 6500K tana da ƙarfin shuɗi mafi bayyana kuma ƙarancin abun ciki na ja. Waɗannan siffofin sun bi ka'idodin ERP da ANSI don daban-daban bins na CCT.

5. Bayanin Injiniya da Marufi

5.1 Girman Kunshin

Hoton saman yana nuna jikin kunshin na tsawon 3.50mm da faɗin 2.75mm. Hoton gefe yana nuna tsayi 0.70mm (ba tare da fentin solder ba). Hoton ƙasa yana nuna fenti biyu: anode (A) da cathode (C). Ana nuna polarity ta alamar “+” kusa da anode. An bayar da tsarin solder don shimfidar PCB: girman fentin da aka ba da shawarar shine 2.10mm × 0.40mm ga kowane fenti (duka 2.10mm × 1.10mm don yanki rectangular) tare da tazara 2.10mm tsakanin fenti. Duk haƙuri suna ±0.05mm sai dai idan an lura. Raka'a suna cikin millimeters.

5.2 Tape da Reel na Mai ɗaukar kaya

Tape mai ɗaukar kaya yana da faɗin 8mm tare da matakin aljihu na 4.00mm. Kowane aljihu yana ɗauke da LED guda ɗaya tare da alamar polarity da ke nuna alkibla. Hanyar ciyarwa tana kan tsawon tape. Reel yana da girman: A=12.4mm ±0.3mm, B=400mm ±2mm, C=100mm ±0.4mm, D=14.3mm ±0.3mm (diamita na ciki). Lakabi akan reel yana fayyace lambar sashi, lambar spec, lambar lot, lambobin bin (flux, chromaticity, voltage), wavelength (idan ya dace), yawa, da kwanan wata.

6. Jagororin Solder da Haɗuwa

6.1 Bayanin Solder Reflow

Bayani na reflow mara gubar da aka ba da shawarar: matsakaicin hawan hawan ≤3°C/s; preheat daga 150°C zuwa 200°C na daƙiƙa 60-120; lokaci sama da 217°C (TL) har zuwa daƙiƙa 60; matsakaicin zafi 260°C na max daƙiƙa 10; saurin sanyaya ≤6°C/s. Lokaci duka daga 25°C zuwa matsakaicin zafi ya kamata ya zama ≤8 mintuna. Kar a yi fiye da sau biyu na reflow. Ka guji damuwa ta injiniya yayin zafi. Solder da hannu: zafin ƙarfe<300°C na

6.2 Taka tsantsan na Gudanarwa

Rufin shine silicone, wanda yake laushi. Ka guji matsi a saman. Kada a saka akan PCB mara daidaituwa. Ka guji sanyaya da sauri bayan solder. Yanayin aiki ya kamata ya iyakance mahadi na sulfur zuwa<100PPM; bromine<900PPM; chlorine<900PPM; duka Br+Cl<1500PPM. VOCs daga kayan fitilar na iya canza launin silicone; gwada dacewa. Yi amfani da forceps don riƙe ta gefen gefe. Tsara da'irar tare da resistors masu iyakance ƙarfi don hana ƙonewa daga canjin wutar lantarki. Tsarin zafi yana da mahimmanci: zafin junction dole ne ya kasance ƙasa da 110°C.

7. Bayanin Marufi da Tsari

7.1 Bayanin Marufi

Matsakaicin yawan marufi shine 23,000 pcs a kowane reel. Ana sanya reel a cikin jakar hana danshi tare da desiccant da katin nuna danshi. Sannan ana sanya jakar a cikin akwatin kwali. Matakin laushi na 3: bayan bude jakar, dole ne a yi amfani da na'urorin a cikin sa'o'i 24 idan an adana a ≤30°C/60%RH. Idan ba haka ba, ana buƙatar gasa: sa'o'i 24 a 60°C ±5°C.

7.2 Bayanin Lakabi

Lakabin ya haɗa da: Part No., Spec No., Lot No., Bin Code (don flux, chromaticity, voltage), Wavelength (idan ya dace), Yawa, da Kwanan wata. Tsarin suna na samfurin ya dogara ne akan tsarin ciki na Refond (an nuna shi azaman RF-PxxMI32DS-AF-N-Y), wanda ke ƙididdige CCT, nau'in kunshin, da sauran siffofi.

8. Shawarwarin Aikace-aikace

8.1 Aikace-aikace na Yau da Kullun

Wannan LED ya dace da masu nuna haske, nunin cikin gida, aikace-aikacen hasken tubular, da haskakawa gabaɗaya. Kusurwar kallo mai faɗi da zaɓuɓɓukan CCT da yawa sun sa ya zama mai sassauƙa don haske na yanayi. A cikin ƙirar hasken tubular, ana iya sanya LEDs da yawa akan PCB madaidaiciya don samun rarraba haske daidai.

8.2 Abubuwan La'akari na Ƙira

Koyaushe yi aiki ƙasa da matsakaicin ƙididdiga. Yi amfani da resistors masu dacewa don daidaita ƙarfi. Ba da isasshen sanyaya zafi, musamman a yanayin zafi mai girma. Ka guji sanya LEDs a wurare masu yawan sulfur. Don aikace-aikacen waje, ana iya buƙatar ƙarin kariya daga danshi. Lens ɗin silicone mai laushi na iya jawo ƙura; tsaftace da isopropyl alcohol idan an buƙata. Ba a ba da shawarar tsaftacewa da ultrasonic ba.

9. Kwatanta Fasaha

Idan aka kwatanta da LEDs na gargajiya na through-hole, wannan kunshin PLCC-2 yana ba da ƙaramin sawu, ƙananan matsayi, da dacewa da tsarin SMT na atomatik, yana rage farashin haɗuwa. Idan aka kwatanta da wasu kunshin SMD (misali, 2835, 3528), wannan na'urar 3.5×2.75mm tana ba da daidaituwa tsakanin fitar da haske da aikin zafi. Juriyar zafi na 60°C/W matsakaici ne, yana buƙatar ƙirar zafi mai hankali don aikace-aikacen ƙarfi mai girma. Kusurwar kallo 120° ya fi yawancin LEDs masu jagora, yana sa ya dace da haskakawa daidai. CRI na 70-71 yana da yawa ga LEDs fari na yau da kullun; don aikace-aikacen da ke buƙatar haske mai kyau, ya kamata a yi la'akari da wasu samfuran da CRI>80.

10. Tambayoyi na Yau da Kullun

Tambaya: Za a iya tuƙi wannan LED a 65mA koyaushe?Amsa: Eh, 65mA shine matsakaicin ƙarfin gaba a 25°C. Duk da haka, ana buƙatar ragewa a yanayin zafi mafi girma; duba kwatance na ragewa (Fig 1-10). Don dogon lokaci mai aminci, ana ba da shawarar 60mA.

Tambaya: Menene tsawon rayuwa na yau da kullun?Amsa: Duk da cewa ba a fayyace a sarari a cikin takaddun bayanai ba, LEDs fari na yau da kullun tare da wannan ginin suna da rayuwar L70 fiye da sa'o'i 50,000 a ƙarfin da aka ƙididdige kuma sarrafa zafi mai kyau, bisa ga ƙa'idodin masana'antu.

Tambaya: Shin wannan LED ya dace da rage haske ta hanyar pulse-width modulation (PWM)?Amsa: Eh, ana iya rage haske ta na'urar ta hanyar PWM idan ƙarfin kololuwa bai wuce 120mA ba kuma an iyakance duty cycle (misali, 1/10) don kiyaye matsakaicin ƙarfi a cikin iyaka. Tabbatar cewa mitar PWM ta fi 100Hz don guje wa firgita mai gani.

Tambaya: Yaya launi yake da hankali ga ƙarfin tuƙi?Amsa: LEDs fari suna nuna ɗan canjin launi tare da ƙarfi saboda canje-canje a zafin junction da ingancin phosphor. Don daidaituwar launi, yi amfani da tuƙi mai ƙarfi akai-akai da yanayin zafi mai kwanciyar hankali.

11. Misali na Ƙira Mai Aiki

Yi la'akari da hasken tubular 20W ta amfani da guda 100 na wannan LED. Kowane LED ana tuƙi shi a 60mA, 3.1V (yau da kullun), yana haifar da ~0.186W kowane LED, duka 18.6W. PCB ita ce allon aluminum don watsa zafi. Matsakaicin haske mai yawa kowane LED shine 26.5lm, duka 2650lm. Tare da asarar gani na 15%, fitar da fitilar zai kasance kusan 2250lm, yana samun inganci na tsarin kusan 120lm/W. An zaɓi bin chromaticity E40 (4000K) don bayyanar fari tsaka-tsaki. Ana sanya LEDs a cikin layi madaidaiciya tare da tazara 10mm, kuma diffuser yana ba da rarraba haske daidai. Misalin zafi yana nuna zafin junction ƙasa da 85°C a yanayin zafi 25°C, yana tabbatar da dogon rayuwa.

12. Ka'idar Aiki

LED fari yana amfani da guntu InGaN/GaN mai fitar da shuɗi (~450nm) wanda ke motsa shi Layer phosphor YAG:Ce mai fitar da rawaya. Haɗin haske shuɗi da rawaya yana samar da haske fari. Ayyukan zafin launi yana ƙayyade ta hanyar abun cikin phosphor da kauri. Wannan fasaha ce mai kyau don LEDs fari masu inganci. Don takamaiman bins na CCT, ana amfani da nau'ikan phosphor daban-daban (misali, ƙara phosphor ja don CCT mai ɗumi kamar 3000K). Na'urar tana aiki a ƙarƙashin forward bias inda electrons da holes suka haɗu a cikin rijiyar quantum don fitar da photons. Kusurwar kallo mai faɗi ta samu ta hanyar rufin silicone mai siffar dome wanda yake aiki azaman lens.

13. Hanyoyin Ci Gaba

Hanyar ci gaba a cikin LEDs fari tana ci gaba zuwa inganci mafi girma (>200 lm/W), ingantaccen CRI (>90), da ƙaramin kunshin. Sabbin fasahohin phosphor (misali, phosphor nitride) suna ba da faɗin launi mafi faɗi da mafi kyawun kwanciyar hankali. Haɗin LEDs tare da sarrafa wayo (misali, canza launi) yana ƙaruwa da buƙata. Wannan kunshin PLCC-2 na iya maye gurbinsa da kunshin chip-scale (CSP) don ma ƙaramin sawu. Duk da haka, PLCC ya kasance sananne ga haskakawa gabaɗaya saboda dogaro da sauƙin sarrafa shi. Amfani da kayan marasa gubar da yarda da RoHS ya zama daidai. Ci gaba na gaba na iya haɗawa da haɓakar ƙarfin halin yanzu da ingantaccen juriyar zafi don rage farashin tsarin.