LED Infrared PLCC4 3.5x2.8x1.85mm - 1.5V Ƙarfin Gaba - 100mA - 940nm Tsawon Tashin Haske - 190mW Ragewar Ƙarfi - Bayanan Fasaha

1. Bayanin Samfurin

1.1 Bayani na Gabaɗaya

Ana yin LED Infrared ta amfani da fasahar AlGaAs epitaxial bisa tudu, yana samar da haske mai inganci a cikin bakan kusa da infrared. Na'urar tana cikin kundi na PLCC4 mai girma 3.5mm x 2.8mm x 1.85mm, wanda ya sa ta dace da ƙananan ƙira da haɗa kai ta saman. LED ɗin yana fitar da tsawon tashin haske na 940nm, wanda ya dace da aikace-aikace kamar remote control, hangen dare, da hasken mota.

1.2 Siffofi

• Kundi na PLCC4 don dacewa da SMT
• Kusurwar gani mai faɗi sosai na 120°
• Ya dace da duk matakan haɗa kai da siyarwa na SMT
• Ana samuwa a kan tef da reel don sanyawa ta atomatik
• Matakin damshin damshi: Mataki na 3
• Ya bi ka'idojin RoHS da REACH
• An tabbatar da shi bisa ga gwajin damuwa na AEC-Q102 don masu sarrafa kwakwalwa na mota

1.3 Aikace-aikace

• Hasken mota na ciki da waje (misali, hasken yanayi, haskaka firikwensin)
• Tsarin remote control na infrared
• Firikwensin gani da encoders
• Kayan aikin hangen dare

2. Bayanan Fasaha

2.1 Halayen Lantarki da Gani (a Ts=25°C, IF=100mA)

2.2 Matsakaicin Ƙarfin da aka Halatta (a Ts=25°C)

2.3 Kewayon Bin don VF, Ie, da Tsawon Tashin Haske (IF=100mA)

Ana ware LEDs a cikin bini don ƙarfin gaba, ƙarfin haske, da tsawon tashin haske don tabbatar da daidaito. Bini da ke akwai sune kamar haka:

3. Lambobin Ayyuka

3.1 Ƙarfin Gaba vs. Kwararar Gaba (Hoto 1-7)

Lambar VF-IF na yau da kullun tana nuna alaƙar da ba ta daidaita ba: a kananan kwarara (10mA) ƙarfin yana kusan 1.2V, yana tashi zuwa kusan 1.5V a 100mA da 1.7V a 200mA. Wannan halayyar exponential ita ce ta al'ada ga LEDs infrared kuma dole ne a yi la'akari da ita lokacin tsara masu tafiyar da kwarara akai-akai.

3.2 Ƙarfin Haske vs. Kwararar Gaba (Hoto 1-8)

Fitowar haske yana ƙaruwa kusan daidai da kwararar gaba har zuwa 100mA. A 100mA ana daidaita ƙarfin haske zuwa 100%; a 50mA yana kusan 60%. Yin aiki fiye da 100mA (yanayin bugu kawai) yana samar da mafi girman fitowar amma dole ne a iyakance ta duty cycle.

3.3 Zazzabi na Solder vs. Ƙarfin Haske (Hoto 1-9)

Yayin da zazzabi na solder ya tashi, ingancin LED yana raguwa. A 100°C ƙarfin haske ya ragu zuwa kusan 70% na darajar a 25°C. Duban zazzabi mai kyau yana da mahimmanci don kiyaye aikin gani.

3.4 Zazzabi na Solder vs. Matsakaicin Kwararar Gaba (Hoto 1-10)

Don kiyaye zazzabi na haɗuwa ƙasa da 120°C, dole ne a rage madaidaicin kwararar gaba tare da ƙarar zazzabi na yanayi. A 25°C ana iya amfani da cikakken 100mA; a 100°C kwararar da aka halatta tana raguwa zuwa kusan 20mA.

3.5 Ƙarfin Gaba vs. Zazzabi na Solder (Hoto 1-11)

Ƙarfin gaba yana raguwa daidai da zazzabi a kimanin -2.5 mV/°C. Dole ne a yi la'akari da wannan matsaya na zazzabi mara kyau lokacin tsara madaukai na tsarin kwarara.

3.6 Tsarin Hasken (Hoto 1-12)

LED yana nuna tsarin fitowar Lambertian tare da kusurwar ƙarfi 50% na ±60°, wanda ya dace da kusurwar gani gabaɗaya na 120°. Hasken yana da daidaito kuma yana bazuwa daidai a kan kusurwa mai faɗi, yana sa ya dace da aikace-aikace masu buƙatar ɗaukar manyan wurare.

3.7 Kwararar Gaba vs. Tsawon Tashin Haske (Hoto 1-13)

Tsawon tashin haske yana canzawa kaɗan da kwarara: daga 940nm a 65mA zuwa 946nm a 105mA. Wannan canjin ja na kusan 0.2 nm/mA na al'ada ne ga masu fitar da infrared kuma yana iya buƙatar ramawa a aikace-aikace masu damuwa da tsawon tashin haske.

3.8 Rarraba Bakan (Hoto 1-14)

Bakan fitowar yana tashi a 940nm tare da cikakken faɗi a rabin madaidaici (FWHM) na kusan 40nm. Bakan yana da tsabta ba tare da wasu madaidaitan matsananci ba, yana tabbatar da tsabta mai girma don tacewa da ganowa.

4. Bayanan Injiniya

4.1 Girman Kundi (Hoto 1-1 zuwa 1-4)

Kundi na LED shine PLCC4 mai girma gabaɗaya na 3.5mm x 2.8mm x 1.85mm. Hoto na sama yana nuna tashoshi huɗu: cathode (pin 1) wanda aka yiwa alama da ƙwanƙolin polarity, anode (pin 2), da tashoshi biyu (pins 3 da 4) waɗanda aka haɗa a lantarki da ɗaukar zafi don inganta rage zafi. Hoto na ƙasa yana nuna kushin zafi na 2.6mm x 1.6mm. Tsarin soldering da aka ba da shawarar yana da kushin tsakiya na 4.6mm x 2.6mm tare da kushin pin na 0.8mm x 0.7mm.

4.2 Tsarin Soldering (Hoto 1-5)

Shirya PCB mai kyau yana da mahimmanci don aikin zazzabi da lantarki. Wurin fili da aka ba da shawarar ya haɗa da babban kushin zafi a ƙarƙashin kundi don tafiyar da zafi. Duk girma a cikin millimeters tare da haƙuri na ±0.2mm sai dai in an ambata.

5. Bayanan Marufi

5.1 Girman Tef da Reel (Hoto 2-1, 2-2)

Ana tattara LEDs a cikin tef da reel tare da adadin 2000 guda a kowace reel. Tef ɗin yana da matakin aljihu na 4.0mm, nisa na 12.0mm, da zurfin ɓangaren da aka inganta don kundi na PLCC4. Reel ɗin yana da diamita na 330mm, diamita na cibiya na 60mm, da nisa na 12.6mm.

5.2 Bayanan Label (Tebur 2-2)

Ana yiwa kowace reel alama da lambar ɓangare, lambar spec, lambar lot, lambar bin don haske, bin chromaticity, bin ƙarfin gaba, bin tsawon tashin haske, adadi, da lambar kwanan wata. Lambobin bin sun dace da kewayon da aka ware a cikin Sashe na 2.3.

5.3 Marufin Juriya da Damshi

Ana jigilar LEDs a cikin jakar hana damshi tare da desiccant da katin nuna damshi. Matakin damshin damshi (MSL) shine Mataki na 3, ma'ana rayuwar bene shine sa'o'i 168 bayan buɗe jakar a ƙarƙashin yanayi ≤30°C/60%RH. Idan rayuwar bene ta wuce ko jakar ta lalace, ana buƙatar gasa a 60±5°C na > sa'o'i 24 kafin amfani.

6. Gwajin Amincewa

6.1 Abubuwan Gwajin Amincewa (Tebur 2-3)

6.2 Matsayin Rashin Taba

Bayan gwajin amincewa, ana ɗaukar LED a matsayin da ta gaza idan an wuce iyaka: ƙarfin gaba > 1.1 × babban iyaka na spec (USL), kwararar baya > 2.0 × USL, ko ƙarfin haske<0.7 × ƙaramin iyaka na spec (LSL).

7. Jagororin Soldering

7.1 Tsarin Refow Soldering na SMT

Dole ne soldering reflow ya bi tsarin zazzabi da aka ba da shawara: preheat daga 150°C zuwa 200°C sama da daƙiƙa 60-120, ƙimar hawan ≤3°C/s, lokaci sama da 217°C (liquidus) har zuwa daƙiƙa 60, madaidaicin zazzabi 260°C tare da lokaci a cikin 5°C na madaidaici don kada ya wuce daƙiƙa 30 (mafi ƙarancin daƙiƙa 10 a ainihin madaidaici), da ƙimar sanyaya ≤6°C/s. Jimlar lokaci daga 25°C zuwa madaidaici bai kamata ya wuce mintuna 8 ba. Kar a yi reflow fiye da sau biyu. Idan fiye da sa'o'i 24 suka wuce tsakanin reflows, ana buƙatar gasa.

7.2 Soldering da Hannu

Ana ba da izinin soldering da hannu sau ɗaya kawai tare da zazzabin ƙarfe ƙasa da 300°C da lokacin tuntuɓar ƙasa da daƙiƙa 3. Guji yin matsi kai tsaye akan ruwan tabarau na silicone yayin soldering.

7.3 Gyara

Ba a ba da shawarar gyara ba. Idan ba zai yuwu ba, yi amfani da ƙarfen soldering mai kai biyu kuma a duba a hankali cewa halayen LED ba su lalace ba.

8. Tsare-tsaren Kulawa

8.1 Yanayin Ajiyewa

Kafin buɗe jakar hana damshi: ajiye a ≤30°C da ≤75% RH, rayuwa a kan shiryayye shekara 1. Bayan buɗewa: yi amfani a cikin sa'o'i 24 a ≤30°C da ≤60% RH. Idan ba a yi amfani da shi a cikin wannan lokacin ba, gasa a 60±5°C na > sa'o'i 24.

8.2 La'akarin Muhalli

Guji fallasa ga mahadin sulfur da ke sama da 100 ppm a kewayen LED. Haka kuma guji manyan matakan bromine da chlorine (kowanne ƙasa da 900 ppm, jimillar ƙasa da 1500 ppm) don hana lalata. Yi amfani da kayan da ba su fitar da mahadin kwayoyin halitta masu canzawa (VOCs) waɗanda zasu iya canza launin rufin silicone.

8.3 Kulawa da Injiniya

Kar a yi matsi kai tsaye akan ruwan tabarau na silicone; riƙe kundi ta gefen. Yi amfani da nozzles masu ɗauka da kuma ajiyewa masu dacewa tare da ƙarfin da aka sarrafa. Kar a ɗora LEDs a kan PCBs da suka lankwasa ko lankwasa allon bayan soldering.

8.4 Kariya daga Fitowar Lantarki (ESD)

LED yana da hankali ga ESD. Yi amfani da wurin aiki da aka ɗora ƙasa, madauri na wuyan hannu, da ionizers. Matsayin HBM shine 2000V; duk da haka, fiye da 90% na na'urori suna wucewa a wannan matakin, don haka har yanzu ana buƙatar kulawa.

8.5 Tsarin Zazzabi

Zazzabi na haɗuwa bai kamata ya wuce 120°C ba. Juriya na zazzabi zuwa wurin solder shine 130°C/W. Tsara PCB tare da isasshen yankin jan ƙarfe da ɗaukar zafi don kiyaye zazzabin wurin solder ƙasa. Yi la'akari da rage kwarara idan zazzabin yanayi yana da yawa.

9. La'akari da Aikace-aikace

9.1 Hasken Mota

Tare da cancantar AEC-Q102, wannan LED ya dace da aikace-aikacen hasken mota na ciki da waje. Kusurwar gani mai faɗi ya sa ya dace da hasken yanayi da ayyukan nuni. Tabbatar da bin ka'idodin EMC na mota da buƙatun zazzabi.

9.2 Shawarwarin Zane

• Yi amfani da mai tafiyar da kwarara akai-akai don guje wa canjin ƙarfin gaba yana haifar da rashin daidaiton kwarara a cikin layukan layi.
• Haɗa resistor mai jeri a kowane layi don hana guduwar zazzabi.
• Samar da isassun hanyoyin zazzabi a ƙarƙashin kushin zafi.
• Don aiki tare da bugu (misali, sadarwa), kiyaye madaidaicin kwarara (700mA) da duty cycle (1/10).
• Tace ko rufe fitowar IR don guje wa tsangwama da wasu na'urori masu hankali da IR.

10. Bin Ka'idoji

An tsara wannan samfurin don bin ka'idojin RoHS (Hanu da Abu Mai Haɗari) da REACH (Rijista, Kimantawa, Izinin, da Hana Sinadarai). Yana kuma cika buƙatun amincewa na AEC-Q102 don gwajin damuwa na mota. Rabe-raben MSL shine Mataki na 3 bisa ga JEDEC J-STD-020. Na'urar ba ta da halogen kuma ba ta da antimony.