Izitolo Ezithengisa Ingxenye Yoqobo Umsabalalisi we-IC Chip TPS62420DRCR IC Chip
Izimfanelo Zomkhiqizo
UHLOBO | DESCRIPTION |
Isigaba | Izifunda Ezihlanganisiwe (ICs) |
Mfr | Texas Instruments |
Uchungechunge | - |
Iphakheji | I-Tape & Reel (TR) Cut Tape (CT) I-Digi-Reel® |
SPQ | 3000 T&R |
Isimo somkhiqizo | Iyasebenza |
Umsebenzi | Isinyathelo-Phansi |
Ukucushwa Kokukhiphayo | Okuhle |
I-Topology | Buck |
Uhlobo Lokukhiphayo | Kuyalungiseka |
Inombolo Yemiphumela | 2 |
I-Voltage - Okokufaka (Okuncane) | 2.5V |
I-Voltage - Okokufaka (Ubukhulu) | 6V |
I-Voltage - Okukhiphayo (Okuncane/Okulungisiwe) | 0.6V |
I-Voltage - Okukhiphayo (Ubukhulu) | 6V |
Okwamanje - Okukhiphayo | 600mA, 1A |
Imvamisa - Ukushintsha | 2.25MHz |
I-synchronous Rectifier | Yebo |
Izinga Lokushisa Lokusebenza | -40°C ~ 85°C (TA) |
Uhlobo Lokukhweza | INtaba Engaphezulu |
Iphakheji / Ikesi | I-10-VFDFN Exposed Pad |
Iphakheji Yedivayisi Yomhlinzeki | I-10-VSON (3x3) |
Inombolo Yomkhiqizo Eyisisekelo | I-TPS62420 |
Ngokukhula okusheshayo kokukhanyisa kwe-LED ku-elekthronikhi yezimoto, izinselele ezintsha ze-LED zivele.Lesi sihloko sichaza izingqinamba eziyinhloko abaklami bamandla okukhanyisa banamuhla ababhekana nazo futhi sihlola ukuthi lezi zingasingathwa kanjani ngemojula ye-LED yezimoto entsha ye-MPS - i-MPM6010-AEC1 3.
Izinzuzo zempilo ende, usayizi omncane, nokusetshenziswa kwamandla okuphansi kwama-LED kufanelana kahle nezidingo zezimoto zanamuhla ezihambisana nemvelo futhi kube nomthelela ekwazisweni kwama-LED ekukhanyeni kwezimoto.Kusukela ekukhanyeni kwe-ambient, izinkomba zesignali, kanye nokukhanyisa kwesikrini sedijithali ngaphakathi kwemoto ukuze iphendule amasignali, amalambu amabhuleki, amalambu enkungu, namalambu akhanya emini ngaphandle kwemoto, ama-LED asevele asetshenziswa yonke indawo ngaphakathi nangaphandle.Esikhathini esizayo esiseduze, ama-LED kulindeleke ukuthi athathe indawo ye-halogen noma amalambu anamandla amakhulu asekelwe ku-xenon.
Onjiniyela bokukhanyisa izimoto banamuhla babhekene nenani lezinselele zobuchwepheshe ekuklameni ama-LED abe mancane futhi ahluke kakhulu, kuyilapho ngesikhathi esifanayo bethuthukisa ukwethembeka, ukungavikeleki ekuphazamisekeni kozibuthe, nokuthuthukisa ukusebenza okushisayo.
Ukuthembeka okuphezulu kubalulekile kubunjiniyela bezimoto, futhi lokhu kubaluleke kakhulu ekukhanyeni kwemoto yangaphandle, lapho isimo semoto (ukujika, ukuma, ama-alamu, njll.) sincike kukho.Umgomo ojwayelekile wokukhulisa ukwethembeka ukunciphisa inani lezingxenye ebhodini: izingxenye ezimbalwa, amaphuzu angaba khona okuhluleka, kanye nezinto ezincane ezidingekayo.Ukuklama kulula, kuba lula ukuthuma nokuletha emakethe.
Ngaphezu kwalokho, njengoba amasistimu e-LED ancipha, ama-elekthronikhi ahambisana nawo awashayelayo nawo kufanele anciphe.Enye indlela evamile yokufeza imiklamo yebhodi emincane ukwandisa imvamisa yokushintsha yomshayeli, ngaleyo ndlela unciphise usayizi wama-inductors nama-capacitor ahlobene.Kodwa-ke, amaza okushintsha aphezulu abangela ukwanda okukhulu ekuphazamisekeni kwamandla kazibuthe;ubudlelwano obuyisikwele phakathi kokuphazanyiswa kazibuthe kagesi kanye nefrikhwensi yokushintsha kusho ukuthi ukuphinda kabili imvamisa yokushintsha kukhulisa ukuphazamiseka kukazibuthe ngokuphindwe kane.Ukuze uxazulule le nkinga, abaklami kufanele bathuthukise isakhiwo sesekhethi futhi bakhethe izingxenye ezilahlekelwa kancane kuyilapho benciphisa amaluphu azwelayo lapho ama-currents adlulayo asebenza khona;lezi zindlela ezibucayi ngokuvamile ziqukethe amaswishi, ama-inductors okugcina amandla, nama-decoupling capacitor.Enye indlela yokunciphisa i-EMI ukwengeza ukuvikela kwensimbi, okufika nokwenyuka okukhulu kwezindleko, okungamukeleki emakethe yokukhanyisa ezwela intengo.
Ngaphezu kwalokho, nakuba ama-LED enamandla amancane kune-halogen noma amalambu e-incandescent, ukuphathwa kokushisa kuseyinkinga enkulu njengoba kuhlobene ngokuqondile neminyaka yokuphila ye-LED.Ama-LED aziwa ngamakhulu ezinkulungwane zamahora okusebenza, kodwa amazinga okushisa aphezulu e-junction angabangela impilo yawo yehle, futhi izimo zezulu ezinzima lapho izimoto zingasebenza khona zinganciphisa impilo ye-LED.