Diodes Inc. yana nufin sabon mai sarrafawa ya dace da aikace-aikace inda ake buƙatar wutar lantarki akai-akai ko akai-akai don fitar da nuni da fitilun baya.A gefen LCD, wannan na iya haɗawa da amfani azaman direban hasken baya don LCD TVs, LCD masu saka idanu, da nunin panel.A gefen LED, wannan na iya nufin amfani azaman direban LED don aikace-aikacen hasken kasuwanci.
Na'urar tana ɗaukar ƙarfin shigarwar daga 9V zuwa 40V.Wannan yana ba shi damar sauƙin daidaitawa da nau'ikan ƙarfin lantarki na gama gari, kamar 12V, 24V, da 36V, ba tare da ƙarin daidaitawa ko asarar inganci ba.
Matsayin dimming ana sarrafa shi ta hanyar shigarwar PWM na dijital (modulation mai faɗin bugun jini), wanda aka canza zuwa ƙarfin lantarki na analog don aiwatar da sarrafa ainihin dimming.AL3353 na iya goyan bayan siginar PWM tare da mitoci daga 5kHz zuwa 50kHz.
Bugu da ƙari, AL3353 yana kiyaye layi a cikin yanayin zafi da bambance-bambancen tsari.Ana cim ma wannan ta hanyar aiwatar da dabarar ramuwa mai tsauri ta Diodes, wacce ke amfani da da'irar sokewar da'ira.
AL3353 yana ƙunshe da direban haɓaka PWM wanda ke amfani da sarrafa yanayin halin yanzu da ƙayyadaddun aikin mitar don daidaita hasken LED na yanzu.Hasken LED na yanzu yana wucewa ta hanyar resistor halin yanzu na waje.Ana kwatanta ƙarfin wutar lantarki a fadin resistor sensing da matakin tunani na 400mV.Ana amfani da bambanci tsakanin ƙarfin wutar lantarki guda biyu don sarrafa girman bugun jini na wutar lantarki, da kuma ba da izinin daidaita abubuwan da ke gudana ta cikin LED.
Hakanan za'a iya amfani da AL3353 a cikin yanayin da ke buƙatar sarrafa ƙarfin fitarwa, maimakon sarrafawar halin yanzu.Yana yin haka ta hanyar yin ma'auni tare da hanyar sadarwa ta hanyar sadarwa da ke da alaƙa da tashar fitarwa na na'urar.
Don kare kanta da LEDs ɗin da yake sarrafawa, AL3353 ya ƙunshi wasu mahimman fasalulluka na aminci.Waɗannan sun haɗa da:
AL3353 na iya maye gurbin abubuwa masu hankali da yawa kuma zai iya rage farashin BOM, da kuma rage sararin jirgi tare da ƙaramin girmansa:
Idan aka yi la’akari da amfanin wannan ɓangaren, ba abin mamaki ba ne cewa akwai sauran masu shiga wannan filin.Kuma, yayin da AL3353 ke ba da fitarwa guda ɗaya, wasu masana'antun suna ba da sassan da har zuwa abubuwan fitarwa guda huɗu.Ga kadan:
Lokacin aikawa: Mayu-29-2019