Bayanin Fasaha na EL083L EL086L Jerin: 8-Pin SOP 3.3V Dual Channel Mai Sauri 15Mbit/s Logic Gate Photocoupler

1. Bayanin Samfur

Jerin EL08XL suna wakiltar iyali na dual-channel, mai sauri logic gate photocouplers (opto-isolators) da aka tsara don aikace-aikacen keɓewar dijital na zamani. Waɗannan na'urori sun haɗa diode mai fitar da infrared wanda aka haɗa ta hanyar haske zuwa ginin lantarki na CMOS detector a cikin ƙaramin 8-pin Small Outline Package (SOP). Babban aikin shine samar da keɓewa tsakanin shigar da kewayon fitarwa yayin watsa sigina na dijital mai sauri tare da ƙaramin karkacewa.

Babban fa'idar wannan jerin yana cikin haɗin saurin aiki (har zuwa Megabits 15 a kowace dakika), dacewa da ƙananan lantarki 3.3V da 5V CMOS logic families, da kuma ƙaƙƙarfan halayen keɓewa. An ƙera na'urorin don maye gurbin transformers na bugun jini da sauran hanyoyin keɓewa a cikin aikace-aikace masu ƙarfi, suna ba da amintaccen bayani, ƙanƙanta, da mafita mai iya hawa sama. Kasuwannin da aka yi niyya sun haɗa da sarrafa kai, sadarwa, sarrafa wutar lantarki, na'urorin kwamfuta, da kowane tsarin da ke buƙatar watsa bayanai marasa hayaniya a cikin yankunan ƙarfin lantarki.

2. Zurfin Binciken Sigogi na Fasaha

2.1 Matsakaicin Matsakaicin Matsakaici

An ƙayyade na'urar don aiki mai dogaro a cikin ƙayyadaddun iyakoki. Manyan matsakaicin matsakaicin matsakaici sun haɗa da: gaba mai gaba (I_F) na 20 mA don shigar da LED, juzu'in ƙarfin lantarki (V_R) na 5V, da iyakokin ɓarnawar wutar lantarki na 35 mW don shigarwa da 85 mW don fitarwa. Ƙarfin wutar lantarki (V_CC) da ƙarfin fitarwa (V_O) dole ne kada su wuce 5.5V. Ma'auni mai mahimmanci shine ƙarfin keɓewa (V_ISO) na 3750 V_rmsna minti ɗaya, an gwada shi a ƙarƙashin takamaiman yanayin ɗanɗano tare da gajarta shigar da fitarwa daban. Kewayon zafin aiki daga -40°C zuwa +85°C.

2.2 Halayen Lantarki

Cikakkun sigogi na DC suna tabbatar da dacewa da ƙirar tsarin. Shigar da LED yana da matsakaicin ƙarfin lantarki na gaba (V_F) na 1.4V a 8mA, tare da matsakaicin 1.8V. An ayyana halayen fitarwa don duka 3.3V da 5V aikin samar da wutar lantarki. Babban matakin fitarwa ƙarfin lantarki (V_OH) an tabbatar da cewa yana cikin 1V na V_CC(min) lokacin nutsewa 4mA. Ƙananan matakin fitarwa ƙarfin lantarki (V_OL) yawanci 0.21V (3.3V) ko 0.17V (5V) lokacin samar da 4mA tare da shigar da LED da aka tuƙa a 8mA, yana tabbatar da ƙaƙƙarfan matakan dabaru. Ƙimar shigar da ƙimar ƙarfin lantarki (I_FT) don ingantaccen ƙananan fitarwa yawanci 2.5 mA, tare da matsakaicin 5 mA.

2.3 Halayen Sauya

Wannan sashe yana ayyana aikin motsa jiki. Lokacin jinkirin yaduwa (t_PHLda t_PLH) yawanci 38-41 ns don samar da 3.3V da 35-46 ns don samar da 5V, tare da matsakaicin 60 ns a ƙarƙashin ƙayyadaddun yanayin gwaji (I_F=8mA, C_L=15pF). Karkatar da faɗin bugun jini (|t_PHL– t_PLH|), wanda ke tasiri ga ingancin sigina, yawanci 6-8 ns tare da matsakaicin 30 ns. Lokacin tashi da faɗuwar fitarwa (t_r, t_f) yawanci 5.5-6 ns. Babban bambanci shine Common Mode Transient Immunity (CMTI). Bambancin EL086L yana ba da garantin mafi ƙarancin 10,000 V/µs don duka manyan jihohin fitarwa da ƙananan, yayin da EL083L ke ba da garantin 5,000 V/µs. Wannan ma'auni yana da mahimmanci a cikin yanayi mai hayaniya tare da saurin canzawa na ƙasa.

3. Binciken Lanƙwasa Aiki

Bayanin bayanin yana nuni zuwa cikakkun lanƙwasa halayen lantarki-haske. Duk da yake ba a ƙididdige takamaiman zane-zane a cikin rubutun da aka bayar, irin waɗannan lanƙwasa yawanci suna kwatanta alaƙar tsakanin gaba mai gaba da ƙarfin lantarki na gaba don shigar da LED, jinkirin yaduwa da zafin jiki, da aikin keɓewa na gama gari. Waɗannan lanƙwasa suna da mahimmanci ga masu ƙira don fahimtar halayen na'urar a ƙarƙashin yanayin da ba daidai ba kuma don inganta wurin aiki don sauri, wutar lantarki, da dogaro.

4. Bayanin Injiniya da Kunshin

4.1 Girman Kunshin

An ajiye na'urar a cikin kunshin SOP 8-pin. Zanen girma yana ba da ma'auni mai mahimmanci don ƙirar sawun PCB, gami da tsawon kunshin gabaɗaya, faɗi, tsayi, tsarin gubar (yawanci 1.27mm), da girman gubar. Yin bin waɗannan girma yana da mahimmanci don ingantaccen gini da dacewar injiniya.

4.2 Saitin Pin da Polarity

Pinout kamar haka ne: Pin 1 (Anode 1), Pin 2 (Cathode 1), Pin 3 (Cathode 2), Pin 4 (Anode 2), Pin 5 (Ƙasa), Pin 6 (V_OUT2), Pin 7 (V_OUT1), Pin 8 (V_CC). Wannan tsari yana goyan bayan tashoshi biyu masu zaman kansu. Daidai polarity haɗin kai don shigar da LEDs (Anode/Cathode) da samar da fitarwa (V_CC/GND) wajibi ne don hana lalata na'urar.

4.3 Shawararriyar Tsarin Pad na PCB

An ba da shawarar tsarin pad na hawa sama. Bayanin ya jaddada cewa wannan ƙirar tunani ce kuma ya kamata a gyara ta bisa takamaiman hanyoyin samar da PCB da buƙatun zafi. Ƙirar pad tana nufin tabbatar da ingantattun fillets na gini da ƙarfin injiniya bayan sake ginin gini.

5. Jagororin Gini da Taro

Matsakaicin matsakaicin matsakaici yana ƙayyadad da zafin gini (T_SOL) na 260°C na dakika 10. Wannan yayi daidai da yanayin sake dawowa mara gubar. Yana da mahimmanci don bin shawarar sake dawowa don takamaiman taron PCB don guje wa lalacewar zafi. Dole ne a adana na'urar a ƙarƙashin yanayi masu dacewa (T_STG: -55°C zuwa +125°C) kafin amfani don kiyaye iya gini.

6. Shawarwari na Aikace-aikace

6.1 Daidaitattun Kewayon Aikace-aikace

Manyan aikace-aikacen da aka jera sune masu karɓar layi, tsarin watsa bayanai, haɗa bayanai, keɓewar amsawar wutar lantarki mai sauyawa, maye gurbin transformer na bugun jini, musaya na gefen kwamfuta, da keɓewar ƙasa na dabaru mai sauri. A cikin daidaitaccen kewayon, gefen shigarwa yana tuƙa ta hanyar sigina ta hanyar resistor mai iyakancewa don saita I_F. Gefen fitarwa yana buƙatar capacitor mai wucewa (0.1µF ko mafi girma, tare da kyawawan halaye na mitar) wanda aka haɗa kusa da kusa tsakanin V_CCda GND pins don tabbatar da aiki mai ƙarfi da rage hayaniya.

6.2 Abubuwan Tunani na Ƙira

• Cire Wutar Lantarki:Amfani da capacitor na wucewa na gida a gefen fitarwa yana da mahimmanci don cimma ƙayyadaddun saurin gudu da kariya daga hayaniya.
• Saitin Ƙarfin Shigarwa:Gaba mai gaba (I_F) ya kamata a saita shi bisa ga saurin da ake buƙata da kuma garantin I_FT. Yin aiki a shawarar 8mA yana tabbatar da ingantaccen gefen hayaniya da saurin sauyawa.
• Abubuwan Tunani na Kaya:Fitarwa na iya tuƙa har zuwa 10 daidaitattun kaya na CMOS. Bayanin bayanin yana ƙayyadad da yanayin gwaji tare da I_O= ±4mA don V_OH/V_OL.
• Zaɓin Tashoshi:Zaɓi tsakanin EL083L (5kV/µs CMTI) da EL086L (10kV/µs CMTI) bisa yanayin hayaniyar lantarki na aikace-aikacen.

7. Kwatancen Fasaha da Bambance-bambance

Jerin EL08XL sun bambanta kansu ta hanyar ƙirar su ta dual-channel a cikin daidaitaccen kunshin SOP-8, suna ba da tanadin sararin allo idan aka kwatanta da na'urori guda biyu. Garantin saurin 15Mbit/s a 3.3V/5V alama ce ta aiki mai mahimmanci don musayar dijital na zamani. Babban Common Mode Transient Immunity, musamman ma darajar 10kV/µs na EL086L, yana ba da mafi girman aiki a cikin yanayin masana'antu mai hayaniya da canjin wutar lantarki idan aka kwatanta da daidaitattun optocouplers. Bin cikakken halayen, RoHS, REACH, da manyan ƙa'idodin aminci na duniya (UL, cUL, VDE, da sauransu) ya sa ya dace da kasuwannin duniya.

8. Tambayoyin da ake yawan yi (Bisa Sigogi na Fasaha)

Q: Zan iya amfani da samar da 5V don fitarwa idan dabaru na 3.3V?

A: Matakin fitarwa yana dacewa da duka matakan CMOS na 3.3V da 5V. Koyaya, dole ne ka tabbatar na'urar dabaru mai karɓa tana da haƙuri na 5V idan ka yi amfani da V na 5V_CC. V_OHzai kasance kusa da 5V.

Q: Menene manufar ƙayyadaddun CMTI?

A: CMTI yana auna ikon na'urar don ƙin saurin canjin ƙarfin lantarki tsakanin shigar da ƙasa na fitarwa. Babban CMTI (misali, 10kV/µs) yana hana waɗannan saurin canjin haifar da kuskuren sauyawar fitarwa, wanda yake da mahimmanci a cikin tuƙi na mota, wutar lantarki, da PLCs na masana'antu.

Q: Ta yaya zan iya ƙididdige resistor na jerin shigarwa?

A: R_series= (V_driver- V_F) / I_F. Yi amfani da V_Fdaga bayanin bayanin (max 1.8V) kuma zaɓi I_F(misali, 8mA don cikakken aiki). Tabbatar mai tuƙi zai iya samar da ƙarfin da ake buƙata.

Q: Ana buƙatar ja sama/ja ƙasa na waje akan fitarwa?

A: A'a. Fitarwa mataki ne mai aiki na CMOS push-pull, yana ba da duka ikon samar da ruwa da nutsewa.

9. Harka na Ƙira na Aiki

Yanayi:Keɓe sigina na UART na 3.3V (115200 baud) tsakanin microcontroller akan allo mai sarrafa mota mai hayaniya da kuma na'urar sadarwa akan allo mai tsabta na dabaru.

Ai watar:Yi amfani da tashoshi ɗaya na EL086L. A gefen microcontroller, haɗa pin TX ta hanyar resistor 180Ω (don ~8mA I_Ftare da direba 3.3V) zuwa shigar da photocoupler (Anode). Haɗa cathode zuwa ƙasa. A gefen keɓe, ba da wutar lantarki V_CCpin (Pin 8) tare da 3.3V daga samar da na'urar sadarwa. Sanya capacitor 0.1µF na yumbu kai tsaye tsakanin Pin 8 (V_CC) da Pin 5 (GND). Haɗa fitarwa (Pin 7, V_OUT1) zuwa pin RX na na'urar sadarwa. Babban CMTI na EL086L yana tabbatar da ingancin bayanai duk da hayaniyar ƙasa daga direban mota.

10. Ka'idar Aiki

Na'urar tana aiki akan ka'idar keɓewar haske. Wutar lantarki da aka yi amfani da ita don shigar da infrared Light Emitting Diode (LED) yana sa ta fitar da haske. Wannan haske yana ratsa shingen keɓewa na gani (yawanci polymer da aka ƙera). A ɗayan gefen, ginin lantarki guda ɗaya na CMOS integrated circuit photodetector yana canza ƙarfin hasken da aka karɓa zuwa sigina na lantarki. Wannan CMOS IC ya haɗa da haɓakawa, siffatawa, da matakin fitarwa na turawa don samar da tsari mai tsabta na dijital. Hanyar haske tana ba da keɓewar galvanic, saboda babu haɗin lantarki tsakanin shigar da fitarwa, kawai hasken haske.

11. Trends na Masana'antu

Trend a cikin keɓewar dijital yana zuwa ga mafi girman sauri, ƙananan amfani da wutar lantarki, ƙananan fakitoci, da mafi girman haɗin kai. Duk da yake daidaitattun optocouplers kamar wannan jerin suna ci gaba da zama sananne don sauƙinsu da babban ƙarfin keɓewa, fasahohin madadin dangane da capacitive (amfani da SiO₂shinge) ko haɗin maganadisu (giant magnetoresistance) suna fitowa. Waɗannan na iya ba da mafi girman sauri, mafi kyawun daidaiton lokaci, da tsawon rayuwa yayin da ba su da LED don lalacewa. Koyaya, manyan ƙarfin lantarki optocouplers suna ci gaba da mamaye a cikin aikace-aikacen da ke buƙatar ƙaƙƙarfan ƙarfin aiki na keɓewa (kV da yawa) da ingantaccen dogaro. Haɗin ƙarin ayyuka kamar isar da wutar lantarki a kan shinge (masu canza DC-DC keɓe) ko tashoshi masu yawa tare da ƙarin ƙimar aminci kuma babban ci gaban ci gaba ne.