Hal adeeg oo joogsi ah 2022+ kaydka ku jira Asalka & Cusub ee IC CHIPS Electronics LM25118Q1MH/NOPB
Sifooyinka Alaabta
| NOOCA | SHARAXA |
| Qaybta | Wareegyada isku dhafan (ICs) PMIC - Xakamaynta korantada - Kontaroolayaasha beddelka DC DC |
| Mfr | Qalabka Texas |
| Taxane | Gawaarida, AEC-Q100 |
| Xidhmada | Tube |
| SPQ | 73Tube |
| Xaaladda Alaabta | Firfircoon |
| Nooca wax soo saarka | Darawalka Transistor |
| Shaqada | Kor-u-qaad, Hoos-u-dhac |
| Habaynta wax soo saarka | Wanagsan |
| Topology | Buck, Kobcinta |
| Tirada Waxsoosaarka | 1 |
| Wejiyada wax soo saarka | 1 |
| Korantada - Alaabta (Vcc/Vdd) | 3V ~ 42V |
| Soo noqnoqda - Beddelka | Ilaa 500kHz |
| Wareegtada Waajibka (Max) | 75% |
| Dib-u-habayn isku xidhan | No |
| Isku xirka saacada | Haa |
| Interfaces taxane ah | - |
| Tilmaamaha Xakamaynta | Daar, Xakamaynta Joogtada, Ramp, Bilowga Jilicsan |
| Heerkulka shaqada | -40°C ~ 125°C (TJ) |
| Nooca Koritaanka | Dusha sare |
| Xidhmada / Kiis | 20-PowerTSSOP (0.173, 4.40mm ballac) |
| Xidhmada Aaladda Bixiyaha | 20-HTSSOP |
| Lambarka Alaabta Saldhigga | LM25118 |
Farqiga
A. Waa maxay faraqa u dhexeeya maamulaha danab iyo xoojiye?
Xakamaynta korantada iyo kor u qaadayaasha, mabda'a ahaan, maamulayaasha korantada iyo kor u qaadayaasha maaha kuwo aad u kala duwan, iyo xakamaynta korantada iyo kor u qaadayaasha shaqada iyo adeegsiga, xakamaynta tamarta iyo kor u qaadayaasha ayaa leh farqi weyn.
Xakamaynta Voltage waxaa inta badan loo isticmaalaa xasillooni la'aanta danab, iyo isbedbeddelka danabku waa kuwo aad u weyn, isbedbeddelkeeda danabku ma buuxin karaan isticmaalka caadiga ah ee shuruudaha qalabka korontada, iyo korantada korantada, waa isbeddelka weyn, xasilinta danab, xasilloonida korantada ee a qiyam kala duwan, si loo hubiyo in qalabka korantada uu si caadi ah u shaqayn karo.
Xakamaynta korantada ee habka hawlgalka, waxaa jiri doona danab aad u hooseeya iyo sidoo kale mid aad u sarreeya, marka korantadu aad u hooseyso, xakamaynta korantadu waxay noqon doontaa in ka badan shaqada kor u qaadista khadka, marka danabku aad u sarreeyo, korantada regulator waa danabka shaqada buck.Si loo hubiyo in danabku siman yahay.Markaa maareeyayaasha danab ee kor loo qaadi karo, waxay sidoo kale noqon kartaa lacag.
Kobciyeyaasha, laga bilaabo magaca waxaan ka arki karnaa isticmaalka alaabta, taas oo ah, danab si kor loogu qaado qalabka qalabka, iyo qalabkani wuxuu bixiyaa oo kaliya shaqada kor u qaadista tamarta.Oo waa in la bixiyo qiimaha kor u go'an, sida kor u kicinta qiimaha waa 100V, marka danab ka 300V in 400V, danab wax soo saarka ee xoojisaa sidoo kale noqon doonaa ka 400V in 500V, xoojisay in isticmaalka geeddi-socodka, oo kaliya kor loogu qaado karaa. danab, laakiin ma xasilin karo danab, sidaas xoojiye guud ahaan loo isticmaalo meelaha ay danab waa xad xasilloon.Haddii jawiga isbedbeddelka korantada ee soo noqnoqda, tamarta wax soo saarka ayaa sidoo kale isbeddelaysa.
Dhab ahaantii, xoojiyayaasha iyo daneeyayaasha danab in ay is barbar dhigaan, sababtoo ah shaqada labada ma awoodaan, isticmaalka aan la isticmaali karin, sidaas darteed labaduba ma samayn karaan isbarbardhigga, oo aan xukumi karin cidda ka fiican iyo kan ka xun, taas oo u baahan in la xukumo. deegaanka awgeed.Isticmaalka qalabka saxda ah ayaa door ka ciyaari kara, haddii isticmaalka khaldan, markaa qalabku ma shaqeyn doono.
In kasta oo labada aan lagu xukumi karin wanaag ama xumaan, haddii aynaan hubin in la isticmaalo korantada ama xakamaynta tamarta, haddii aan haysano lacag ku filan miisaaniyadda, waxaan si toos ah u dooran karnaa xakamaynta tamarta.Tani waa sababta oo ah nidaamiyaha danabku wuxuu si fiican ugu habboon yahay shuruudaha xoojinta iyo dabeecadda shaqada xoojisa, marka la eego isticmaalkeeda iyo waxqabadkeeda.Deegaannada iyo adeegsigooda oo kala duwan awgeed, maamulaha iyo xoojinta lama barbardhigi karo, markaa lama odhan karo yaa wanaagsan iyo kan xun.
B.Maxaa loola jeedaa sixitaan isku mid ah?Waa maxay farqiga u dhexeeya synchronous iyo non-synchronous?
Sixitaanka caadiga ah waa isticmaalka astaamaha hal-dooriyaha diode si loo saxo hadda, habka sixiddu uma baahna xakamaynta aadanaha.Sababtoo ah horay u sii socda, dib u goynta, laakiin sababtoo ah diode lafteedu waxay yeelan doontaa hadda iyada oo loo marayo hoos u dhaca danabka, habka hagaajinta ayaa lumin doona tamarta, taas oo keenta kulayl, iyo waxtarka beddelka awoodda ee marxaladdan sixitaanka ayaa hoos loo dhigi doonaa.
Sixitaan isku dhafan macnaheedu waa in halkii laga isticmaali lahaa diode ee qaybta hagaajinta, MOS ayaa la isticmaalayaa.Sababtoo ah MOS waxay ku shaqeysaa iska caabin aad u yar, jiilka kulaylku waa tamarta ugu yar ee luminta, sidaas darteed waxtarka beddelka awoodda ayaa kordhay.Habka dib-u-hagaajinta isku-dhafka ah waa sida marka tamarta laga soo wareejiyo dhinaca hoose ee loo baahan yahay dhinaca labaad, tuubada MOS ee u dhiganta dhinaca labaad ayaa furma oo u oggolaanaysa hadda inay dhex socoto.Taa beddelkeeda, marka wareejinta tamarta aan loo baahnayn, tuubada MOS waa la daminayaa, taas oo ka hortagaysa inuu hadda socdo.
Tusaale ahaan, dib-u-duulid, marka tuubada beddelka ee ugu weyni ay dansan tahay, tuubada toosiyaha MOS ee dhinaca labaad waa shid, taasoo u oggolaanaysa in hadda uu socdo.Marka tubbada beddelka ee muhiimka ah la furo, toosiyaha MOS ee isku midka ah waa la daminayaa si uu hadda u joojiyo socodka oo tafaftiruhu kaydiyaa tamarta.Habka dhamaystirka isku midka ah, waxaa lagama maarmaan ah in la xakameeyo wakhtiyada shidan iyo kuwa ka baxsan ee labada qaybood ee MOS, si kala duwan loo furo oo loo xiro si ay u sameeyaan hagaajin isku mid ah, sidaas darteed waxaa loo yaqaan 'synchronous rectification'.Nidaamku aad ayuu u adag yahay marka la barbar dhigo hagaajinta diode.
Ku saabsan Badeecada
LM25118-Q1 baaxadda korantada ballaaran ee kontoroolka wareejinta ee Buck-Boost wuxuu soo bandhigayaa dhammaan howlaha lagama maarmaanka u ah si loo hirgeliyo maamule sare-u-qaadista waxtarka sare leh, oo kharash-ool ah iyadoo la adeegsanayo ugu yaraan qaybaha dibadda.Topology-ga Buck-Boost waxa ay ilaalisaa nidaaminta danab-soo-saarka marka korantada wax-soo-saarka ay ka yar tahay ama ka weyn tahay tamarta wax-soo-saarka taasoo ka dhigaysa mid ku habboon codsiyada baabuurta.LM25118 waxa uu u shaqeeyaa sidii haye buck halka korantada wax soo galinta uu si ku filan uga weyn yahay korantada wax soo saarka ee la habeeyey oo si tartiib tartiib ah ugu gudubta habka kor u qaadida marka korantada wax soo galinta uu ku soo dhawaado wax soo saarka.Habkan laba-habka ah waxa uu ilaalinayaa nidaaminta tiro balaadhan oo koronto gelin ah oo leh hufnaanta beddelka ugu wanaagsan ee qaabka buck-ka iyo wax soo saarka bilaa-la'aanta ah inta lagu jiro kala-guurka qaabka.Kantaroolahan fudud ee la istcimaali karo waxaa ka mid ah darawalada dhanka sare ee MOSFET iyo kor u qaadista MOSFET ee dhinaca hoose.Habka xakamaynta ee nidaamiyaha waxa uu ku salaysan yahay habka hadda loo kantaroolo iyada oo la isticmaalayo ramabka hadda socda.Xakamaynta qaabka hadda jirta ee la dayacay waxa ay yaraynaysaa dareenka sanqadha wareegga habaynta garaaca wadnaha, taas oo u oggolaanaysa in la xakameeyo la isku halayn karo ee wareegyada shaqada ee aadka u yar ee lagama maarmaanka u ah codsiyada korantada sare.Tilmaamaha ilaalinta dheeraadka ah waxaa ka mid ah xadka hadda jira, xiritaanka kulaylka, iyo wax gelinta karti.Qalabku waxa uu ku jiraa baakad HTSSOP ah oo awood leh oo 20-pin ah oo ay ka muuqato suufka dhinta ee daboolan si uu u caawiyo kala-baxa kulaylka.
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