Monga chimodzi mwazinthu zofunika kwambiri pagawo la semiconductor, MOSFET imagwiritsidwa ntchito kwambiri pamapangidwe a IC ndi ma board-level circuit applications. Ndiye mumadziwa bwanji za magawo osiyanasiyana a MOSFET? Monga katswiri wamagetsi apakati ndi otsika a MOSFET,Olukeyadzakufotokozerani mwatsatanetsatane magawo osiyanasiyana a MOSFET!
VDSS pazipita kukhetsa-gwero kupirira voteji
Mphamvu yamagetsi ya drain-source pamene madzi akukhetsa afika pamtengo wina (akukwera kwambiri) pansi pa kutentha kwina ndi pachipata-gwero lalifupi. Mphamvu ya drain-source pankhaniyi imatchedwanso avalanche breakdown voltage. VDSS ili ndi kutentha kwabwino. Pa -50°C, VDSS ndi pafupifupi 90% ya izo pa 25°C. Chifukwa chigamulo kawirikawiri anasiya kupanga yachibadwa, ndi chigumukire kuwonongeka voteji waMOSFETnthawi zonse imakhala yayikulu kuposa ma voliyumu ovomerezeka mwadzina.
Chikumbutso chofunda cha Olukey: Pofuna kutsimikizira kudalirika kwa mankhwala, pansi pazikhalidwe zoipitsitsa kwambiri, tikulimbikitsidwa kuti magetsi ogwira ntchito asapitirire 80 ~ 90% ya mtengo wake.
VGSS pazipita chipata-gwero kupirira voteji
Zimatanthawuza mtengo wa VGS pamene mphamvu yobwerera pakati pa chipata ndi gwero ikuyamba kuwonjezeka kwambiri. Kupitilira mtengo wamagetsiwa kumapangitsa kuwonongeka kwa dielectric pachipata cha oxide, chomwe ndi kuwonongeka kowononga komanso kosasinthika.
ID yochuluka ya drain-source current
Zimatanthawuza kuchuluka kwaposachedwa komwe kumaloledwa kudutsa pakati pa kukhetsa ndi gwero pomwe transistor yam'munda imagwira ntchito bwino. Kugwira ntchito kwa MOSFET sikuyenera kupitilira ID. Parameter iyi idzasintha pamene kutentha kwa mphambano kumawonjezeka.
IDM maximum pulse drain-source current
Imawonetsa kuchuluka kwa kugunda kwamphamvu komwe chipangizochi chimatha kugwira. Parameter iyi idzachepa pamene kutentha kwa mphambano kumawonjezeka. Ngati chizindikirochi ndi chaching'ono kwambiri, dongosololi likhoza kukhala pachiwopsezo chophwanyidwa ndi pano pakuyesa kwa OCP.
PD pazipita mphamvu dissipation
Zimatanthawuza kutayika kwakukulu kwa mphamvu ya gwero lololedwa popanda kusokoneza ntchito ya transistor yam'munda. Akagwiritsidwa ntchito, mphamvu yeniyeni yogwiritsira ntchito transistor yam'munda iyenera kukhala yochepa kuposa ya PDSM ndikusiya malire ena. Izi nthawi zambiri zimatsika pamene kutentha kwa mphambano kumawonjezeka.
TJ, TSTG ntchito kutentha ndi kusungirako kutentha osiyanasiyana
Zigawo ziwirizi zimayang'anira kutentha kwa mphambano komwe kumaloledwa ndi malo ogwiritsira ntchito ndi kusunga. Mtundu wa kutenthawu wakhazikitsidwa kuti ukwaniritse zofunikira zochepa za moyo wa chipangizocho. Ngati chipangizocho chitsimikiziridwa kuti chikugwira ntchito mkati mwa kutentha uku, moyo wake wogwira ntchito udzakulitsidwa kwambiri.
Nthawi yotumiza: Dec-15-2023
