Iibiyaha Elektarooniga ah ee Isku-dhafan ee Wareega ah oo Cusub iyo Asalka ku jira Adeegga Bom ee Kaydka TPS22965TDSGRQ1
Sifooyinka Alaabta
| NOOCA | SHARAXA |
| Qaybta | Wareegyada isku dhafan (ICs) |
| Mfr | Qalabka Texas |
| Taxane | Gawaarida, AEC-Q100 |
| Xidhmada | Cajalad & Gariir (TR) Jaran Cajalad (CT) Digi-Reel® |
| SPQ | 3000 T&R |
| Xaaladda Alaabta | Firfircoon |
| Nooca beddelka | Ujeedada Guud |
| Tirada Waxsoosaarka | 1 |
| Saamiga - Gelida: Wax-soo-saarka | 1:1 |
| Habaynta wax soo saarka | Dhinaca Sare |
| Nooca wax soo saarka | N-Channel |
| Interface | Dami/Dami |
| Voltage - Load | 2.5V ~ 5.5V |
| Korantada - Alaabta (Vcc/Vdd) | 0.8V ~ 5.5V |
| Hadda - Wax-soo-saarka (Max) | 4A |
| Rds On (Nooca) | 16mOhm |
| Nooca Gelitaanka | Aan leexleexad lahayn |
| Astaamaha | Soo daynta Xamuulka, Qiimaha Dilalka waa la xakameeyay |
| Ilaalinta qaladka | - |
| Heerkulka shaqada | -40°C ~ 105°C (TA) |
| Nooca Koritaanka | Dusha sare |
| Xidhmada Aaladda Bixiyaha | 8-WSON (2x2) |
| Xidhmada / Kiis | 8-WFDFN suuf qaawan |
| Lambarka Alaabta Saldhigga | TPS22965 |
Shixnadaha rarka waa badbaadinta meel bannaan, furayaasha korantada ee isku dhafan.Furayaashan waxaa loo isticmaali karaa 'kala-goynta' nidaamyada hoosaadka tamarta-gaajaysan (marka lagu jiro qaabka heeganka) ama kantaroolka-load-ka si loo fududeeyo isku xigxiga awoodda.Furayaasha daaranadaha ayaa la sameeyay markii talefannada casriga ahi ay caan noqdeen;markii ay telefoonadu soo kordhiyeen hawlkarnimo dheeraad ah, waxay u baahdeen looxa wareegyada cufnaanta sare iyo boosku wuu gabaabsi noqday.Dareemaha culeyska isku dhafan ayaa xalliya dhibaatadan: ku celinta booska guddiga naqshadeeyaha iyada oo la isku darayo shaqeyn dheeraad ah.
Waa maxay faa'iidooyinka wareejinta culeyska isku dhafan marka loo eego wareegga kala duwan?
Xalka gaarka ah ee caadiga ah wuxuu ka kooban yahay P-channel birta oxide semiconductor field effect transistor (MOSFET), N-channel MOSFET, iyo iska caabin soo jiidasho leh.Iyadoo tani ay tahay xalka la xaqiijiyay ee wareejinta biraha korontada, waxay leedahay raad weyn.Xal badan oo is haysta ayaa hadda la heli karaa, sida furayaasha xamuulka sida Texas Instruments TPS22915 - waxay leeyihiin raad ka yar 1mm2!Jaantuska 2 waxa uu muujinayaa isbarbardhigga hal macaamiil fulintiisa iyo xalkan TI, kaas oo u sahlay TPS22968 in uu hoos u dhigo cagtiisa in ka badan 80% iyada oo la isku darayo sifooyin badan sida heerka lulida la kantaroolo iyo soo saarista degdega ah.
Maxay tahay sababta aan ugu baahanahay heerka laynta la kantaroolo?
Dhammaan furayaasha xamuulka TI waxay leeyihiin heer lulid la kantaroolo si loo yareeyo qulqulka hadda, sidoo kale loo yaqaan 'shaqada bilawga jilicsan.Iyada oo si tartiib tartiib ah u kordhinaysa heerka dallaca ee capacitors-yada wax soo saarka, beddelka culeyska ayaa ka hortagaya korantada sahayda "hoos u dhac" sababtoo ah ku dallaca degdegga ah ee capacitors load.Macluumaad dheeraad ah oo ku saabsan dhimista qulqulka hadda, fadlan akhri qoraalka codsiga: "Maaraynta Xakamaynta Hadda".
Waa maxay Soo saarista Degdegga ah?
Shaqada soo saarista degdega ah, ee laga heli karo furayaasha xamuulka intooda badan, waxay hubisaa in culeyska go'ay ama naafo uusan sabbeyn.Sida ku cad Jaantuska 3 ee kore, gelinta hoose ee 'on' waxay damisaa curiyaha kanaalka oo shid transistor-ka saamaynta garoonka (FET) iyada oo loo sii marayo rookaha.Tani waxay abuurtaa waddo ka timaada VOUT ilaa GND, iyada oo hubinaysa in culayska si degdeg ah loogu celin karo xaalad 0V ah oo la yaqaan.
