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74FCT3807DQGI8 ic cihp isku dhafka elektiroonigga ah ee kulul iibiso cusub oo asal ah oo kaliya hal goob iibso adeegga bom

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Sifooyinka Alaabta

NOOCA SHARAXA
Qaybta Wareegyada isku dhafan (ICs)

Saacadda/Waqtiga

Clock Buffers, Darawalada

Mfr Hal qayb oo ka mid ah Renesas Electronics America Inc
Taxane 74FCT
Xidhmada Cajalad & Gariir (TR)
Xidhmada caadiga ah 3000
Xaaladda Alaabta Firfircoon
Nooca Qaybinta Fanout (Qaybinta)
Tirada wareegyada 1
Saamiga - Gelida: Wax-soo-saarka 1:10
Kala duwanaansho - Wax-soo-gelin: Wax-soo-saar Maya/Maya
Gelida LVTTL
Wax soo saarka CMOS, TTL
Soo noqnoqda - ugu badnaan 166 MHz
Voltage - Supply 3V ~ 3.6V
Heerkulka shaqada -40°C ~ 85°C
Nooca Koritaanka Dusha sare
Xidhmada / Kiis 20-SSOP (0.154 ", ballac 3.90mm)
Xidhmada Aaladda Bixiyaha 20-QSOP
Lambarka Alaabta Saldhigga 74FCT3807

 

Nooca Wareegga Isku-dhafan

1LED waa nooc cusub oo ah aaladda isha iftiinka semiconductor ee deegaanka u fiican.Marka la barbardhigo ilaha kale ee iftiinka, LED waxay leedahay faa'iidooyin weyn xagga iftiinka baabuurta waxayna leedahay rajo ballaaran oo codsi ah.Siyaabo kala duwan oo isku-darka LED-yada taxane ah iyo isbarbar-dhigga si loo sameeyo arrays LED ayaa loo isticmaalaa si loo buuxiyo shuruudaha xoojinta iftiinka baabuurta.

Horumarka tignoolajiyada iyo horumarka degdega ah ee dhaqaalaha bulshada, wax soo saarka LED ayaa si weyn loogu isticmaalay nolosha dadka.Qarnigii 21-aad, wax-soo-saarka LED-yada iyo miisaanka suuqyadu waxay gaadheen heer aan hore loo arag, suuqa ugu muhiimsan ee arjiyada LED-ku waa meelo kala duwan oo lagu soo bandhigo, noocyada kala duwan ee telefoonnada gacanta, iyo wixii la mid ah.Intaa waxaa dheer, LED-yadu waxay door muhiim ah ka ciyaaraan waddooyinka, iftiinka dhismaha, qurxinta gudaha, iyo meelo kale oo badan.Horumarka degdega ah ee warshadaha baabuurta, wareegyada darawallada LED-ka ayaa si weyn loogu isticmaalay qalabka elektaroonigga ah ee casriga ah, ilihii hore ee iftiinka baabuurta sida nalalka hore ayaa si tartiib tartiib ah loogu beddelayaa iyaga.Isla mar ahaantaana, LED waxay leedahay hufnaan sare oo iftiin leh, waqti jawaab celin gaaban (jawaab degdeg ah), qaab dhismeed is haysta (xajmiga yar), nolosha adeegga dheer, iyo sifooyin kale, waxaa loo isticmaali doonaa nalalka hore ee baabuurta iyo sidoo kale waxay leedahay midab takoor xoog leh iyo anti-bararka. - sifooyinka iftiimaya.Si kastaba ha ahaatee, sababtoo ah xaddidaadaha arrimo kala duwan, LED weli waxay leedahay cillado gaar ah, waxay u baahan yihiin inay sii wanaajiyaan tignoolajiyada LED-ka, si ay si fiican u daboolaan baahiyaha qalabka elektaroonigga ah.

2.LED waa aalad semiconductor iftiin bixisa diode, kaas oo ka samaysan semiconductors gaar ah.LED waa il iftiin leh oo iska caabin wanaagsan u leh gariir iyo shoog, waxaa lagu ilaaliyaa koofiyadda resin epoxy, xudunta waa mid aad u yar, xuduntuna waa xudunta isgoysyada PN, sidaas darteed waxay leedahay astaamaha isku xirka PN, tusaale ahaan gudbinta hore. , Goyn-goynta iyo burburka xad-dhaafka ah, iwm. Qaar ka mid ah kuwa gaarka ah Xaalado gaar ah oo gaar ah, waxa kale oo lagu tilmaami karaa inay tahay iftiin-bixiye.

3.Wareegyada wadista LED-ku waxay u qaybsan yihiin laba nooc oo wadis ah: wadida danabka joogtada ah iyo wadista joogtada ah ee joogtada ah.Sababtoo ah nooca wadida joogtada ah ee LED-ka, qaab dhismeedka isugeynta PN-ku-saleysan, waxay noqon kartaa xiriir jibbaaro ah oo matala korantada LED-ka iyo isbeddellada hadda jira, sidaa darteed si ballaaran ayaa loo isticmaalaa.Habka wadista korantada ee joogtada ah guud ahaan waa isticmaalka awoodda iska caabinta hoos u dhigista ama shaandhaynta transformer-ka-hoos-u-soo-saarka, isticmaalka dabaylaha korantada ama habka korantada beddelka, sahayda korantada LED, laakiin sifooyinka iftiinka LED waxay ahaan doonaan kuwa hadda jira. si joogto ah u beddela saamaynta u dhiganta.Nidaamiyaha tooska ah ee habka wadista joogtada ah ee hadda jira wuxuu leeyahay laba nooc: isbarbar socda iyo taxane, xudunta waa triode korantada ama MOSFET oo ka shaqeysa aagga toosan oo ah iska caabin si firfircoon loo hagaajin karo si loo xakameeyo culeyska.Voltaga iyo hadda ee labada daraf ee LED ma aha xidhiidh toos ah, laguma shaqayn karo si toos ah il danab ah, waxaana loo baahan yahay in la xaddido iyada oo la xaddidayo wakhtiga xaadirka ah si looga hortago qulqulka xad-dhaafka ah ee LED-ka.Iftiinka iftiinka LED-ka iyo hadda ma aha qulqulka iftiinka iftiinka maaha mid u dhigma kan hadda jira, qulqulka iftiinka ayaa sii kordhaya kan hadda jira, waxay wataan heerar kala duwan oo awood koronto ah, caabbinta gudaha, iyo caqabadaha suurtagalka ah maaha kuwo isku mid ah, markaa lama isticmaali karo si toos ah barbar socda.Dooro habka wadista saxda ah ee macquulka ah waa in ay tixgeliyaan codsiga iyo caqli-galnimadeeda, nooc kasta oo ka mid ah, ayaa looga baahan yahay in lagu doorto habka korantada korantada, codsiga inta badan waa PFM, qaabka PWM, iyo xakamaynta filimka slide, kuwaas oo qaab dhismeedka kontoroolka PWM fudud oo dabacsan, wuxuu ilaalin karaa soo noqnoqoshada xasilloon ee hawlgalka, laakiin sidoo kale waxay u baahan tahay in laga fikiro aragtida tamarta-badbaadinta iyo jihooyinka kale, si loo hagaajiyo iftiinka isla markiiba LED, iyo in la yareeyo isticmaalka awoodda LED.


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