Iihoyileseyili zeNdawo zoMsasazi we-IC Chip TPS62420DRCR IC Chip
Iimpawu zeMveliso
UHLOBO | INKCAZO |
Udidi | IiSekethe eziDityanisiweyo (ICs) |
Mfr | Texas Instruments |
Uthotho | - |
Iphakheji | Iteyiphu & neReel (TR) Sika iTape (CT) Digi-Reel® |
SPQ | 3000 T&R |
Ubume beMveliso | Iyasebenza |
Umsebenzi | Yehla |
Uqwalaselo Lwemveliso | Okuhle |
I-Topology | Buck |
Uhlobo Lwemveliso | Iyahlengahlengiswa |
Inani leZiphumo | 2 |
I-Voltage-Igalelo (uMzu) | 2.5V |
I-Voltage-Input (Ubukhulu) | 6V |
Voltage-Imveliso (Min/Fixed) | 0.6V |
Voltage-Imveliso (Ubukhulu) | 6V |
Okwangoku -Isiphumo | 600mA, 1A |
Ukuphindaphinda-Ukutshintsha | 2.25MHz |
Ungqamaniso loLungisanisi | Ewe |
Ubushushu bokusebenza | -40°C ~ 85°C (TA) |
Uhlobo lokuNqamisa | INtaba engaphezulu |
Ipakethe / Ityala | I-10-VFDFN eveziweyo yePad |
Supplier Device Package | I-10-VSON (3x3) |
Inombolo yeMveliso esisiseko | TPS62420 |
Ngokukhula okukhawulezayo kokukhanya kwe-LED kwi-elektroniki yeemoto, imingeni emitsha ye-LED iye yavela.Eli nqaku lichaza imiqobo ephambili abajongene nayo abaqulunqi bamandla okukhanyisa namhlanje kwaye iphonononga ukuba ezi zinokushukuxwa njani ngemodyuli entsha ye-LED yemoto ye-MPS - iMPM6010-AEC1 3.
Izibonelelo zobomi obude, ubungakanani obuncinci, kunye nokusetyenziswa kwamandla aphantsi kwee-LED zihambelana ngokugqibeleleyo neemfuno zezithuthi zanamhlanje ezihambelana nokusingqongileyo kwaye zibe negalelo ekudumeni kwee-LED ekukhanyeni kweemoto.Ukusuka ekukhanyeni kwe-ambient, izikhombisi zesignali, kunye ne-digital screen backlighting ngaphakathi kwemoto ukuguqula iimpawu, izibane ze-brake, izibane zenkungu, kunye nezibane ezikhanyayo zasemini ngaphandle kwemoto, ii-LED sele zisetyenziswa kuyo yonke indawo ngaphakathi nangaphandle.Kwixesha elizayo elingekude, ii-LED zikwalindeleke ukuba zithathe indawo ye-halogen okanye i-xenon-based high-powered headlights.
Iinjineli zokukhanyisa iimoto zanamhlanje zijongene nemiceli mngeni yobugcisa ekuyileni ii-LED ukuba zibe zincinci kwaye zizodwa ngakumbi, ngelixa kwangaxeshanye ziphucula ukuthembeka, ukungakhuseleki kukuphazamiseka kwe-electromagnetic, kunye nokwenza ngcono ukusebenza kobushushu.
Ukuthembeka okuphezulu kubaluleke kakhulu kubunjineli beemoto, kwaye oku kubaluleke kakhulu ekukhanyeni kwemoto yangaphandle, apho imeko yesithuthi (ukujika, ukumisa, i-alamu, njl.) kuxhomekeke.Umgaqo-jikelele wokwandisa ukuthembeka kukunciphisa inani lamacandelo ebhodini: amacandelo ambalwa, iindawo ezimbalwa ezinokuthi zingaphumeleli, kunye nezinto ezincinci ezifunekayo.Uyilo olulula, kulula ukuthuma kunye nokuzisa kwintengiso.
Ukongeza, njengoko iinkqubo ze-LED zicutheka, ii-elektroniki ezinxulumene nazo eziziqhubayo kufuneka zicutheke.Enye indlela eqhelekileyo yokufezekisa iiplani zebhodi ezincinci kukunyusa ukutshintshwa rhoqo komqhubi, ngokunciphisa ubungakanani bee-inductors kunye ne-capacitors ezinxulumene nazo.Nangona kunjalo, i-frequencies ephezulu yokutshintsha ibangela ukunyuka okunyukayo kokuphazamiseka kwe-electromagnetic;Ubudlelwane obuphindwe kabini phakathi kophazamiseko lwe-electromagnetic kunye nokutshintsha frequency kuthetha ukuba ukuphinda-phinda kabini i-frequency switching kwandisa uphazamiseko lombane ngokuphindwe kane.Ukuyicombulula le ngxaki, abaqulunqi kufuneka baphucule ubume besekethe kwaye bakhethe amacandelo elahleko ephantsi ngelixa unciphisa iilophu ezibuthathaka apho ii-currents ezidlulayo zisebenza;ezi ndlela ezibuthathaka ziqulathe utshintsho, ii-inductors zokugcina amandla, kunye ne-decoupling capacitors.Enye indlela yokunciphisa i-EMI kukongeza i-metal shielding, leyo ngokuqinisekileyo iza kunye nokunyuka okukhulu kweendleko, okungamkelekanga kwimarike yokukhanyisa ixabiso.
Ngaphezu koko, nangona ii-LED zinamandla angaphantsi kune-halogen okanye izibane ze-incandescent, ulawulo lwe-thermal lusengumcimbi omkhulu njengoko luhambelana ngqo nexesha lokuphila le-LED.Ii-LED ziyaziwa ngamakhulu amawaka eeyure zokusebenza, kodwa ubushushu obuphezulu be-junction bunokubangela ukuba ubomi babo bube phantsi, kwaye iimeko zemozulu ezinzima apho izithuthi zinokusebenza khona zinokunciphisa ngakumbi ubomi be-LED.