Bayani na Fasaha na LED 1.6x0.8x0.7mm Kore-Rawaya - Wutar lantarki 1.8-2.4V - Ƙarfi 72mW

1. Bayanin Samfur

Wannan LED SMD na kore-rawaya an ƙera shi don amfanin nuni da alama gabaɗaya. An yi na'urar ta amfani da guntun kore-rawaya kuma an sanya ta a cikin ƙaramin marufi mai girman 1.6mm x 0.8mm x 0.7mm. Tana bayar da faɗin kusurwar gani mai digiri 140, wanda ya sa ta dace da aikace-aikacen da ke buƙatar gani mai faɗi. LED ta dace da duk hanyoyin haɗa SMT da ƙera, kuma ta cika buƙatun RoHS. Matsayin kula da danshi ta na 3, yana buƙatar yanayin ajiya da kulawa daidai.

Mahimman abubuwa sun haɗa da zaɓuɓɓukan ƙarfin haske mai girma daga 12 mcd zuwa 80 mcd (a 20 mA), zaɓin tsawon raƙuman haske daga 562.5 nm zuwa 575.0 nm, da sassan wutar gaba daga 1.8 V zuwa 2.4 V. Samfurin ya dace da alamomi na gani, maɓallai, nuni na alamu, da haske na gabaɗaya.

2. Binciken Ƙaddarar Fasaha

2.1 Halayen Lantarki/Haske (Ta=25°C)

Tebur mai zuwa ya taƙaita mahimman sigogi na lantarki da haske waɗanda aka auna a igiyar gaba ta 20 mA sai dai an faɗi akasin haka:

• Wutar Gaba (VF):An raba VF zuwa ƙungiyoyi da yawa: B0 (1.8-2.0V), C0 (2.0-2.2V), D0 (2.2-2.4V). Faɗin bakan rabin haske yawanci 15 nm.
• Tsawon Raƙuman Haske (λD):Zaɓuɓɓukan sassa sun haɗa da A20 (562.5-565 nm), B10 (565.0-567.5 nm), B20 (567.5-570.0 nm), C10 (570.0-572.5 nm), C20 (572.5-575.0 nm).
• Ƙarfin Haske (IV):Sassan sun haɗa daga B00 (12-18 mcd), C00 (18-28 mcd), D00 (28-43 mcd), E00 (43-65 mcd), zuwa F10 (65-80 mcd).
• Kusurwar Gani (2θ1/2):Yawanci digiri 140 a 20 mA.
• Igilar Baya (IR):Matsakaicin 10 μA a VR=5V.
• Juriya na Zafi (RTHJ-S):Matsakaicin 450°C/W a 20 mA.

2.2 Matsakaicin Ƙima na Cikakken Matsayi

Dole ne a ƙetare matsakaicin ƙima na cikakken matsayi yayin aiki don hana lalacewa ta dindindin:

• Rushewar Ƙarfi (Pd): 72 mW
• Igilar Gaba (IF): 30 mA
• Igilar Gaba mafi Girma (Pulse, 1/10 aiki, 0.1ms): 60 mA
• ESD (HBM): 2000 V
• Zafin Aiki (Topr): -40°C zuwa +85°C
• Zafin Ajiya (Tstg): -40°C zuwa +85°C
• Zafin Haɗin (Tj): 95°C

Lura: Duk auna an yi su a ƙarƙashin yanayi daidaitattun. Dole ne a kula don tabbatar da rushewar ƙarfi bai wuce matsakaicin ƙima ba. Ya kamata a ƙayyade iyakar igilar gaba bisa yanayin zafin marufi na gaske da bazuwar zafi don kiyaye zafin haɗin ƙasa da iyaka.

3. Bayanin Tsarin Raba Sassa

3.1 Raba Sassa na Wutar Lantarki

An raba wutar gaba zuwa manyan sassa uku: B0 (1.8-2.0V), C0 (2.0-2.2V), da D0 (2.2-2.4V). Wannan yana bawa abokan ciniki damar zaɓar na'urorin da suka dace da ƙirar kewayawa, yana rage bambancin igiya yayin amfani da ingantaccen resistor.

3.2 Raba Sassa na Tsawon Raƙuman Haske

An raba tsawon raƙuman haske zuwa sassa na 5 nm: A20 (562.5-565 nm), B10 (565-567.5 nm), B20 (567.5-570 nm), C10 (570-572.5 nm), C20 (572.5-575 nm). Wannan yana tabbatar da daidaiton launi don aikace-aikacen da ke buƙatar daidaitaccen inuwa.

3.3 Raba Sassa na Ƙarfin Haske

An raba ƙarfin haske zuwa sassa shida: B00 (12-18 mcd), C00 (18-28 mcd), D00 (28-43 mcd), E00 (43-65 mcd), F10 (65-80 mcd). Masu ƙira zasu iya zaɓar sashin da ya dace don samun matakin haske da ake so.

4. Binciken Lanƙwasa Aiki

Lanƙwasa halaye na haske na yau da kullun suna ba da fa'idodi masu mahimmanci don ƙirar kewayawa:

• Wutar Gaba vs. Igilar Gaba (Hoto 1-6):Yana nuna alaƙar juzu'i; a 20 mA VF yana kusan 2.0V na yau da kullun.
• Igilar Gaba vs. Ƙarfi na Dangantaka (Hoto 1-7):Fitowar haske na dangantaka yana ƙaruwa da igiya har zuwa 30 mA. Jikewa yana farawa a manyan igiyoyi.
• Zafin Fitarwa vs. Ƙarfi na Dangantaka (Hoto 1-8):Yayin da zafi yake ƙaruwa, ƙarfi na dangantaka yana raguwa (~20% raguwa daga 25°C zuwa 85°C). Gudanar da zafi yana da mahimmanci.
• Zafin Fitarwa vs. Igilar Gaba (Hoto 1-9):Yana nuna raguwar da ake buƙata don guje wa guduwar zafi.
• Igilar Gaba vs. Tsawon Raƙuman Haske (Hoto 1-10):Tsawon raƙuman haske yana canza kadan tare da igiya (kusan 1-2 nm a cikin kewayon).
• Ƙarfi na Dangantaka vs. Tsawon Raƙuman Haske (Hoto 1-11):Maɗaukakin bakan yana kusa da 570 nm (kore-rawaya).
• Zane na Radda (Hoto 1-12):Tsarin fitarwa yana kama da Lambertian tare da kusurwar rabin-ƙarfi na ±70°.

5. Bayanin Injiniya da Marufi

5.1 Girman Marufi

LED tana da girman 1.6mm (tsawo) x 0.8mm (faɗi) x 0.7mm (tsayi). ƙasan kallo yana nuna gurɓatattun katodi da anodi biyu. An nuna polarity ta hanyar kusurwa mai ɓarna akan marufi. Tsarin da aka ba da shawara na gurɓatattun ƙarfe shine 0.8mm x 0.8mm tare da tazara 2.4mm tsakanin gurɓatattun. Tolerances sune ±0.2mm sai dai an faɗi akasin haka.

5.2 Tepe na Jigilar Kaya da Nadi

Marufi na yau da kullun shine 4,000 guda a kowane nadi. Tepe na jigilar kaya yana da nisan 4.00mm, faɗi 8.00mm, kuma ya ƙunshi alamar polarity. Diamita na waje na nadi shine 178±1mm, cibiya ta ciki 60±1mm, da kaurin flange 13.0±0.5mm.

5.3 Lakabi da Jaka mai hana Danshi

Kowane nadi an yi masa lakabi da lambar sashi, lambar ƙayyadaddun bayanai, lambar kuri'a, lambar sassa (wanda ya haɗa da yawan haske, sassa na chromaticity, wutar gaba, tsawon raƙuman haske), yawa, da kwanan wata. An rufe nadi a cikin jaka mai hana danshi tare da bushewa da katin nuna danshi.

6. Jagororin ƙera da Haɗa

6.1 Tsarin ƙera na Reflow

Tsarin reflow da aka ba da shawara yana bin ƙa'idodin JEDEC tare da matsakaicin zafin jiki na 260°C na mafi ƙarancin daƙiƙa 10. Fara preheat daga 150°C zuwa 200°C na daƙiƙa 60-120. ƙimar hawan ≤3°C/s, ƙimar saukowa ≤6°C/s. Jimlar lokaci daga 25°C zuwa kololuwa yakamata ya kasance ≤ mintuna 8. Kada a yi ƙera fiye da sau biyu, kuma idan tazarar tsakanin reflows biyu ta wuce sa'o'i 24, ana buƙatar gasa don hana lalacewa daga danshi.

6.2 ƙera da Hannu

Idan an buƙaci ƙera da hannu, yi amfani da zafin ƙarfe na ƙera ƙasa da 300°C na ƙasa da daƙiƙa 3. Aikin ƙera da hannu daya kawai aka yarda.

6.3 Ajiya da Gasa

Kafin buɗe jaka mai hatimi, ya kamata a adana LED a ≤30°C da ≤75% RH har zuwa shekara ɗaya. Bayan buɗewa, dole ne a yi amfani da na'urorin a cikin sa'o'i 168 (≤30°C, ≤60% RH). Idan ba a cika waɗannan sharuɗɗan ba, gasa a 60±5°C na ≥ sa'o'i 24.

7. Bayanan Marufi da Umarnin Oda

Adadin nadi na yau da kullun shine 4,000 guda a kowane nadi. Girman akwatin kwali na waje daidaitaccen ne ga nadi na SMD. Lakabi ya ƙunshi duk bayanan sawa da ake buƙata. Babu takamaiman lambar oda fiye da lambar sashi RF-GSB190TS-BC da aka bayar; abokan ciniki suna ƙayyade sassan da ake buƙata na VF, tsawon raƙuman haske, da ƙarfin haske.

8. Shawarwarin Aikace-aikace

Aikace-aikace na yau da kullun sun haɗa da alamomi na gani (misali, fitilun hali), hasken baya na maɓallai, nuni na alamu, da nuni gabaɗaya a cikin kayan lantarki na mabukaci, cikin motoci, da kayan sarrafa masana'antu. Saboda faɗin kusurwar gani, LED ta dace da allunan haske na gefe da haske na yanki inda ake son rarraba haske daidai. Masu ƙira yakamata su haɗa resistor mai iyakance igiya don hana wuce gona da iri. ƙirar zafi tana da mahimmanci—ana ba da shawarar yankin jan ƙarfe na PCB da isasshen zafi yayin aiki kusa da matsakaicin ƙima. Kada a fallasa LED ga yanayi mai yawan sulfur da ya wuce 100 ppm, ko ga kayan da ke saki halogens (Bromine<900 ppm, Chlorine<900 ppm, jimla<1500 ppm) don guje wa lalatawar firam ɗin jagora na azurfa. VOCs daga adhesives ko kayan daɗaɗɗen ruwa na iya canza launin encapsulant na silicone; ana ba da shawarar gwajin dacewa.

9. Tambayoyi na Fasaha na Yau da Kullun

9.1 Yadda ake kula da hankalin ESD?

Wannan LED tana da ƙimar ESD na 2000V (HBM). Ya kamata a yi amfani da matakan kariya na ESD na yau da kullun (wuraren aiki da ke ƙasa, tabarmi masu gudanarwa, mundaye na antistatic) yayin aiki da haɗawa.

9.2 Idan lokacin ajiya bayan buɗewa ya wuce?

Idan lokacin ajiya na sa'o'i 168 ya wuce, gasa na'urorin a 60±5°C na ≥ sa'o'i 24 kafin ƙera don guje wa fashewa.

9.3 Za a iya tuka LED da PWM?

E, amma tabbatar da igiyar kololuwa ba ta wuce 60 mA ba (faɗin bugun 0.1ms, aikin zagaye 1/10). Don PWM na gabaɗaya, ana iya buƙatar rage ƙima bisa matsakaicin igiya.

9.4 Me yasa ake raba wutar gaba zuwa sassa?

Raba sassa yana bawa damar sarrafa VF sosai don daidaiton haske a cikin tsararru masu layi-daidaita. Yin amfani da sashin VF guda ɗaya yana tabbatar da raba igiya daidai.

10. Nazarin Tsarin Aiki na Aiki

Yi la'akari da fitilar alama don kayan aikin gida. Abokin ciniki yana buƙatar LED kore-rawaya tare da tsawon raƙuman haske kusa da 570 nm da ƙarfin haske na 20-30 mcd. Ta zaɓar sashin C00 don ƙarfi da B20 don tsawon raƙuman haske, ƙirar ta sami daidaiton launi da haske. Resistor 120Ω tare da samar da 5V yana iyakance igiya zuwa kusan 20 mA (ana ɗauka VF ~2.0V). Tsarin PCB ya haɗa da hanyoyin zafi a ƙarƙashin gurɓatattun LED don kiyaye zafin haɗin ƙasa da 85°C ko da a cikin rufaffiyar marufi. Haɗin yana bin tsarin reflow da aka ba da shawara kuma ya wuce gwajin dogaro na sa'o'i 1000 a 25°C.

11. Ƙa'idar Aiki na LED

Wannan LED kore-rawaya ta dogara ne akan guntun semiconductor InGaN (indium gallium nitride) ko GaP (gallium phosphide). Lokacin da aka tura gaba, electrons da holes suna haɗuwa a cikin yanki mai aiki, suna fitar da photons tare da makamashi daidai da bandgap. Tsarin guntun musamman yana ba da tsawon raƙuman haske na kololuwa kusa da 570 nm, wanda ake gani a matsayin kore-rawaya. Encapsulant na silicone yana kare guntun kuma yana aiki a matsayin ruwan tabarau don ƙara fitar da haske da ayyana tsarin radda.

12. Yanayin Fasaha da Hasashen Gaba

Yanayin kasuwa na ƙananan LED SMD na ci gaba zuwa ƙananan girma (misali, 1.0x0.5mm), inganci mafi girma, da faɗin kewayon launi. Wannan marufi na 1.6x0.8mm ya kasance sananne saboda daidaiton girman da sauƙin sarrafawa. Ci gaban gaba na iya haɗawa da ingantaccen sarrafa zafi (ƙananan RTHJ-S) da ƙarfin ESD mafi girma. Ga LED kore-rawaya, ƙirar da aka canza ta phosphor suna fitowa don samun launuka masu cikawa, amma guntun fitarwa kai tsaye kamar wannan yana ba da inganci mafi kyau da sauƙi.

13. Taƙaitaccen Gwajin Dogaro

LED ta cancanci ta gwajin dogaro na yau da kullun a kowace JEDEC: Reflow (260°C, sau 2), Zagayen Zafin Jiki (-40°C zuwa 100°C, zagaye 100), Girgizar Zafi (-40°C zuwa 100°C, zagaye 300), Ajiya a Babban Zafin Jiki (100°C, sa'o'i 1000), Ajiya a ƙananan Zafin Jiki (-40°C, sa'o'i 1000), da Gwajin Rayuwa (25°C, 20 mA, sa'o'i 1000). ƙa'idodin yanke hukunci suna ba da damar VF ya ƙaru har zuwa 1.1x USL, IR har zuwa 2x USL, da faɗuwar yawan haske ba ƙasa da 0.7x LSL.