Saukewa: LT8620EMSE#TRPBF

LT®8620 ƙarami ne, babban inganci, babban saurin daidaitawa monolithic mataki-ƙasa mai daidaita sauyawa wanda ke karɓar kewayon ƙarfin shigarwar mai faɗi har zuwa 65V, kuma yana cinye 2.5µAofquiescent halin yanzu.Ana haɗa maɓallan wuta na sama da ƙasa tare da duk abubuwan da suka dace don rage buƙatar abubuwan haɗin waje.Low Ripple Fashe Mode aiki yana ba da damar babban inganci har zuwa ƙarancin fitarwa yayin da ake ajiye ripple ɗin ƙasa da 10mVP-P.Fitin SYNC yana ba da damar aiki tare zuwa agogon waje.Diyya ta ciki tare da mafi girman yanayin yanayin yanayin yanzu yana ba da damar amfani da ƙananan inductor kuma yana haifar da amsa mai sauri da sauri da kwanciyar hankali mai kyau.Fitin EN/UV yana da madaidaicin madaidaicin madaidaicin 1V kuma ana iya amfani dashi don shirye-shiryen kullewar ƙarancin wutar lantarki ta VIN ko kuma rufe LT8620 yana rage shigar da shigar yanzu zuwa 1µA.A capacitor a kan TR/SS fil yana shirye-shiryen ƙimar ƙarfin ƙarfin fitarwa yayin farawa.Tutar PG tana sigina lokacin da VOUT ke tsakanin ± 9% na ƙarfin fitarwa da aka tsara da kuma yanayin kuskure.Ana samun LT8620 a cikin ƙaramin 16-Lead MSOP da 3mm × 5mmQFNpackages tare da fakitin fallasa don ƙarancin juriya na thermal.

LT8620 monolithic ne, akai-akai akai-akai, yanayin halin yanzu mai juyawa DC/DC.Oscillator, tare da saita mitar ta amfani da resistor akan fil ɗin RT, yana kunna babban babban wuta na ciki a farkon kowane zagayowar agogo.A halin yanzu a cikin inductor sannan yana ƙaruwa har sai na'ura mai canzawa na yanzu yana tafiya kuma ya kashe maɓallin wuta na sama.Ƙwararrun inductor na yanzu wanda babban maɓallin ke kashe ana sarrafa shi ta hanyar ƙarfin lantarki akan kumburin VC na ciki.Amplifier kuskure yana aiki da kumburin VC ta hanyar kwatanta ƙarfin lantarki akan fil ɗin VFB tare da tunani na 0.97V na ciki.Lokacin da nauyin halin yanzu ya ƙaru yana haifar da raguwa a cikin ƙarfin amsawa dangane da ma'anar da ke jagorantar amplifier kuskure don ɗaga wutar lantarki ta VC har sai matsakaicin matsakaicin inductor na yanzu ya dace da sabon nauyin halin yanzu.Lokacin da maɓallin wuta na sama ya kashe, maɓallin wuta na aiki tare yana kunna har sai lokacin zagaye na gaba ya fara ko inductor na yanzu ya faɗi zuwa sifili.Idan yanayin lodi ya haifar da fiye da 3.9A da ke gudana ta cikin maɓallin ƙasa, za a jinkirta zagayowar agogo na gaba har sai an dawo da halin yanzu zuwa matakin aminci.