Takardar Bayani na PLCC-4 Super Red LED - 3.5x3.0x1.9mm - 2.35V - 0.1175W - Takardar Fasaha ta Hausa

1. Bayyani Game da Samfur

Wannan takarda ta bayyana cikakkun bayanai na babban LED Super Red mai aiki mai kyau a cikin kunshin PLCC-4 (Plastic Leaded Chip Carrier) wanda ake hawa a saman. An tsara na'urar da farko don aikace-aikacen hasken mota masu bukatu, na ciki da na waje. Babban fa'idodinta sun hada da babban karfin haske, faffadan kusurwar kallo, da ingantaccen gini wanda ya dace da madaidaicin matakan amincin mota kamar AEC-Q102, juriya ga sulfur (Class A1), da bin ka'idojin RoHS, REACH, da bukatu marasa halogen. Kasuwar da ake nufi ta hada da masu kera motoci (OEMs) da masu kawowa na mataki na farko (tier-1) wadanda ke haɓaka ingantattun tsarin haske.

2. Bincike Mai Zurfi na Sigogi na Fasaha

2.1 Halayen Haske da Lantarki

Ana siffanta aikin LED a karkashin matsakaicin halin yanzu na gaba (IF) na 50mA. Matsakaicin karfin haske (IV) shine 1800 millicandelas (mcd), tare da mafi kankanta na 1400 mcd da mafi girma na 2800 mcd, wanda ke nuna yuwuwar rarrabe su don haske. Matsakaicin karfin lantarki na gaba (VF) shine 2.35V, yana tafiya daga 2.0V zuwa 2.75V, wannan yana da muhimmanci ga zangon tuƙi da lissafin zafin wutar lantarki. Babban tsayin raƙuman ruwa (λd) yana tsakiya a 630 nm (bakan Super Red), tare da kewayon daga 627 nm zuwa 639 nm. Babban fasali shine faffadan kusurwar kallo (φ) na digiri 120, yana ba da haske mai faɗi da daidaito wanda ya dace da siginar ishara da hasken yanayi.

2.2 Matsakaicin Matsakaicin Iyaka da Gudanar da Zafin Jiki

Dole ne a kiyaye iyakokin mahimmanci don tabbatar da tsawon rayuwar na'urar. Matsakaicin halin yanzu na ci gaba na gaba shine 70 mA, tare da halin yanzu na guguwa (IFM) na 100 mA don bugun jini ≤10 μs. Matsakaicin zafin haɗin gwiwa (TJ) shine 125°C, kewayon zafin aiki (Topr) daga -40°C zuwa +110°C, wanda ya dace da mawuyacin yanayin mota. Gudanar da zafin jiki yana da mahimmanci; juriya na zafi daga haɗin gwiwa zuwa wurin solder (Rth JS) an ƙayyade shi da ƙima biyu: ma'auni na \"hakika\" (Typ. 70 K/W, Max 95 K/W) da ma'auni na \"lantarki\" (Typ. 50 K/W, Max 67 K/W). Wannan siga yana haɗa kai tsaye da zafin wutar lantarki (Pd = VF * IF) zuwa hawan zafin jiki a haɗin gwiwa. Lankwasa rage ƙarfi yana nuna cewa dole ne a rage halin yanzu na gaba yayin da zafin wurin solder ya karu, misali, zuwa 57 mA a zafin wurin solder na 110°C.

3. Bayanin Tsarin Rarrabawa

Don tabbatar da daidaito a cikin samarwa, ana rarraba LED zuwa kwandon asusun mahimman sigogi.

3.1 Rarrabawar Karfin Haske

An ayyana rukunoni uku na karfi: AB (1400-1800 mcd), BA (1800-2240 mcd), da BB (2240-2800 mcd). Hakanan an ba da kewayon kwararar haske (don tunani).

3.2 Rarrabawar Babban Tsayin Raƙuman Ruwa

Ana rarraba tsayin raƙuman ruwa a matakan 3-nanometer, daga 2730 (627-630 nm) zuwa 3639 (636-639 nm). Wannan yana ba da damar zaɓar LED tare da takamaiman maki launi.

3.3 Rarrabawar Karfin Lantarki na Gaba

An ayyana kwandon asusun wutar lantarki a cikin ƙaruwa na 0.25V, daga 1720 (1.75-2.00V) zuwa 2527 (2.50-2.75V). Daidaita kwandon asusun VF na iya zama mahimmanci don daidaita halin yanzu a cikin jerin LED masu yawa.

4. Bincike na Lankwasa Aiki

4.1 Lankwasa IV da Matsakaicin Dangantaka

Graf na Halin Yanzu na Gaba da Karfin Lantarki na Gaba yana nuna alaƙar alaƙa ta musamman. Lankwasa Matsakaicin Haske Dangane da Halin Yanzu na Gaba yana kusan layi har zuwa matsakaicin 50mA, yana nuna ingantacciyar inganci a cikin kewayon aiki na yau da kullun.

4.2 Dogaro da Zafin Jiki

Graf da yawa suna kwatanta aikin zafin jiki. Matsakaicin Karfin Lantarki na Gaba Dangane da Zafin Haɗin Gwiwa yana da ƙimar mara kyau, yana raguwa da kusan 0.2V a kan kewayon 150°C, wanda za'a iya amfani dashi don ganin zafin jiki. Matsakaicin Haske Dangane da Zafin Haɗin Gwiwa yana nuna fitarwa yana raguwa yayin da zafin jiki ya tashi, wani muhimmin abu ne don ƙirar zafin jiki. Canjin Babban Tsayin Raƙuman Ruwa Dangane da Zafin Haɗin Gwiwa yana nuna jujjuyawar ja (ƙaruwa a cikin tsayin raƙuman ruwa) tare da dumama, wanda ya zama ruwan dare ga LED na AlInGaP.

4.3 Rarraba Bakan da Tsarin Radiation

Graf na Halayen Tsayin Raƙuman Ruwa yana nuna ƙaƙƙarfan kololuwar bakan kusa da 630 nm, yana tabbatar da launin ja mai tsabta. Takamaiman Zane na Halayen Radiation yana wakiltar tsarin kusurwar kallo na digiri 120 a zahiri.

4.4 Ƙarfin Sarrafa Bugun Jini

Graf yana cikakken bayani game da halin yanzu na bugun jini da aka halatta da faɗin bugun jini don matakan aiki daban-daban. Wannan yana da mahimmanci don ƙirar kewayon aikin bugun jini, kamar a cikin PWM dimming ko tsarin sadarwa.

5. Bayanin Injiniya da Kunshin

LED yana amfani da daidaitaccen kunshin PLCC-4. Zanen injiniya (wanda aka nuna ta hanyar sashin tunani) zai ƙayyade ainihin girmansa (yawanci kusan 3.5mm x 3.0mm x 1.9mm), tazarar jagora, da lissafin ruwan tabarau. Ana nuna polarity ta hanyar siffar kunshin da/ko alama a saman ko ƙasa. An ba da shimfidar wurin solder da aka ba da shawarar don tabbatar da ingantaccen haɗin solder da kuma ingantaccen zubar da zafi yayin sake kunnawa.

6. Jagororin Solder da Taro

An ƙididdige na'urar don sake kunnawar solder a kololuwar zafin jiki na 260°C na dakika 30, bin daidaitaccen bayanin martaba tare da sarrafa haɓaka, jiƙa, da ƙimar sanyaya. Abubuwan kariya sun haɗa da guje wa matsin lamba na injiniya akan ruwan tabarau, hana gurɓatawa, da tabbatar da cewa an yi solder da kyau don mafi kyawun canja wurin zafi. Yanayin ajiya ya kamata ya kasance a cikin ƙayyadaddun kewayon -40°C zuwa +110°C a cikin yanayi mai bushewa.

7. Bayanin Kunshin da Oda

Kunshin yawanci akan tef da reel ne don haɗa kai ta atomatik. Tsarin lambar sashi ana fassara shi kamar haka: 67-41 (Iyalin), SR (Launin Super Red), 050 (Halin yanzu na gwaji na 50mA), 1 (Firam ɗin jagoran Zinariya), H (Matsayin haske mai girma), AM (Aikace-aikacen mota). Wannan lambar yana ba da damar tantance halayen aikin na'urar daidai.

8. Shawarwarin Aikace-aikace

8.1 Yanayin Aikace-aikace na Yau da Kullun

Aikace-aikacen farko sune hasken waje na mota (misali, fitilun tsakiyar babban tsayawa - CHMSL, fitilun haɗin baya, alamomin gefe) da hasken ciki (misali, hasken baya na dashboard, hasken maɓalli, hasken yanayi). Babban haske da faffadan kusurwa sun sa ya dace da aikace-aikacen kallo kai tsaye da jagorar haske/bututu.

8.2 Abubuwan Tunani na Ƙira

Dole ne masu ƙira su yi la'akari da iyakance halin yanzu, yawanci ta amfani da direba mai ci gaba ko resistor a cikin jerin tare da tushen wutar lantarki mai tsayi. Gudanar da zafin jiki yana da mahimmanci; shimfidar PCB dole ne ya ba da wurin zafi mai isa da yuwuwar hanyoyin zafi don zubar da zafi. Hankalin ESD na 2kV (HBM) yana buƙatar matakan kula da ESD na yau da kullun yayin haɗawa. Don wurare masu wadatar sulfur, ya kamata a tabbatar da ƙimar ƙarfin sulfur na Class A1 daidai da takamaiman yanayin aikace-aikace.

9. Kwatancen Fasaha da Bambance-bambance

Idan aka kwatanta da daidaitattun LED ja, tsarin wannan na'urar na \"Super Red\" yana ba da babban karfin haske da launi mai cika. Kunshin PLCC-4 yana ba da ingantaccen haɗin gwiwa na injiniya da zafin jiki fiye da ƙananan kunsoshi kamar 0603 ko 0805. Haɗin cancantar AEC-Q102, faffadan kewayon zafin jiki, da juriya ga sulfur suna nufin shi musamman don amfanin mota, suna bambanta shi da kayan kasuwanci waɗanda ba za su iya rayuwa ba a cikin mawuyacin rayuwar mota.

10. Tambayoyin da ake yawan yi (Dangane da Sigogi na Fasaha)

Q: Wane halin yanzu na direba ya kamata in yi amfani da shi?

A: Matsakaicin halin yanzu na aiki shine 50mA, yana ba da ƙayyadaddun 1800mcd. Ana iya tuƙi har zuwa 70mA ci gaba don mafi girman fitarwa, amma dole ne a yi amfani da rage ƙarfin zafin jiki kamar yadda aka nuna a cikin graf. Kada ku yi aiki a ƙasa da 5mA.

Q: Ta yaya zan fassara ƙimar juriya na zafin jiki daban-daban guda biyu?

A: \"Hakika\" Rth JS ana auna shi ta zahiri kuma yana da ra'ayi mafi girma. \"Lantarki\" Rth JS an samo shi daga sigogin lantarki kuma yana iya zama ƙasa. Don ingantaccen ƙirar zafin jiki, ana ba da shawarar amfani da mafi girman ƙimar \"hakika\" (Max 95 K/W).

Q: Shin zan iya amfani da PWM don dimming?

A: Ee, graf na ƙarfin sarrafa bugun jini yana ba da jagorori. Misali, a matakin aiki na 1% (D=0.01), gajerun bugun jini da yawa sama da 70mA suna halatta, suna ba da damar ingantaccen dimming na PWM.

Q: Shin ana buƙatar heatsink?

A> Don ci gaba da aiki a 50mA ko sama, musamman a cikin manyan yanayin zafi na yanayi, ingantaccen zubar da zafi ta wurin zafin jiki na PCB yana da mahimmanci don kiyaye zafin haɗin gwiwa a ƙasa da 125°C da kuma kiyaye fitar da haske da tsawon rai.

11. Ƙira Mai Amfani da Lamarin Amfani

Harka: Ƙirar CHMSL (Fitilar Tsakiyar Babban Tsayawa)

Mai ƙira yana buƙatar LED 15 don jerin CHMSL. Suna zaɓar LED daga kwandon ƙarfin BA (1800-2240 mcd) da kwandon tsayin raƙuman ruwa na 3033 (630-633 nm) don daidaiton launi. Ta amfani da tsarin lantarki na mota na 13.8V da kuma niyyar 50mA kowace LED, suna ƙirar kewayon tare da layi uku masu layi daya na LED 5 kowanne. An lissafa resistor na jerin don kowane layi dangane da matsakaicin VF na 2.35V (5 * 2.35V = 11.75V). Ƙimar resistor shine (13.8V - 11.75V) / 0.05A = 41 Ohms. An ƙera PCB tare da zubar da tagulla mai ƙarƙashi a ƙarƙashin wurin zafin jiki na LED don zama heatsink, yana kiyaye zafin wurin solder a ƙasa da 80°C don ba da damar cikakken aikin 50mA kamar yadda lankwasa rage ƙarfi ya nuna.

12. Gabatarwar Ka'idar Aiki

Wannan diode ne mai fitar da haske na tushen semiconductor na Aluminium Indium Gallium Phosphide (AlInGaP). Lokacin da aka yi amfani da karfin lantarki na gaba wanda ya wuce ƙarfin bandgap, electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki, suna sakin makamashi a cikin nau'in photons. Takamaiman abun da ke cikin yadudduka na AlInGaP yana ƙayyade ƙarfin bandgap, wanda yayi daidai da tsayin raƙuman hasken ja da aka fitar (kusan 630 nm). Ruwan tabarau na epoxy na kunshin PLCC yana siffanta fitar da haske don cimma kusurwar kallo na digiri 120.

13. Trends na Fasaha da Ci gaba

Trend a cikin LED na mota yana zuwa ga mafi inganci (lumens da yawa kowace watt), ƙara yawan ƙarfin wutar lantarki, da mafi girman haɗin kai (misali, kunsoshi masu yawa-chip, masu tuƙi haɗin kai). Hakanan akwai turawa don ingantaccen kwanciyar hankali na launi akan zafin jiki da tsawon rai. Bugu da ƙari, sabbin tsarin kunshin tare da ingantaccen aikin zafin jiki, kamar tushen yumbu ko ingantattun kunsoshi, suna fitowa don ɗaukar matakan wutar lantarki mafi girma da ake buƙata don aikace-aikace kamar igiyoyin tuƙi masu daidaitawa (ADB) da ƙananan hasashe. Bin ka'idoji kamar AEC-Q102 da takamaiman juriya na sinadarai (sulfur, zafi) ya ci gaba da zama muhimmin bambanci ga kayan aikin mota.