Olukey anotsanangura maparamita eMOSFET kwauri!

Seimwe yemidziyo yakakosha mumunda we semiconductor, MOSFET inoshandiswa zvakanyanya mune ese ari maviri IC dhizaini uye bhodhi-level redunhu maseketi. Saka yakawanda sei iwe yaunoziva nezve akasiyana ma paramita eMOSFET? Senyanzvi mune yepakati uye yakaderera voltage MOSFETs,Olukeyichakutsanangurira zvakadzama maparamita akasiyana eMOSFET!

VDSS yakakura drain-source inomira voltage

Iyo drain-source voltage kana iyo inoyerera inoyerera inosvika kune chaiyo kukosha (inowedzera zvakanyanya) pasi peiyo tembiricha uye gedhi-sosi pfupi dunhu. Iyo drain-source voltage mune iyi kesi inonziwo avalanche breakdown voltage. VDSS ine yakanaka tembiricha coefficient. Pa -50°C, VDSS inoita 90% yeiyo pa25°C. Nekuda kwemvumo inowanzosiiwa mukugadzirwa kwakajairwa, iyo avalanche breakdown voltage yeMOSFETinogara yakakura kupfuura inomina rated voltage.

Chiyeuchidzo chinodziya chaOlukey: Kuti uve nechokwadi chekuvimbika kwechigadzirwa, pasi pemamiriro ekushanda akaipisisa, zvinokurudzirwa kuti magetsi ekushanda haafaniri kudarika 80 ~ 90% yehuwandu hwehuwandu.

VGSS yakanyanya gedhi-tsime inomira voltage

Inoreva kukosha kweVGS apo reverse ikozvino pakati pegedhi uye sosi inotanga kuwedzera zvakanyanya. Kupfuura iyi voltage kukosha kunokonzeresa kuparara kwedielectric yegedhi oxide layer, inoparadza uye isingadzokeki kuparara.

ID yakawanda drain-source ikozvino

Inoreva iyo yakanyanya ikozvino inotenderwa kupfuura pakati pemvura uye sosi kana munda mhedzisiro transistor iri kushanda zvakajairika. Ikozvino kushanda kweMOSFET hakufanirwe kudarika ID. Iyi parameter ichadzikira sezvo tembiricha yejunction inowedzera.

IDM yakanyanya pulse drain-source current

Inoratidza mwero we pulse current iyo mudziyo unogona kubata. Iyi parameter ichadzikira sezvo tembiricha yejunction inowedzera. Kana iyi parameter iri diki zvakanyanya, sisitimu inogona kunge iri panjodzi yekuputswa neizvino panguva yekuyedzwa kweOCP.

PD yakanyanya simba kupera simba

Iyo inoreva kune yakanyanya kudonhedza-source simba dissipation inotenderwa pasina kushatisa mashandiro emunda mhedzisiro transistor. Kana yashandiswa, iyo chaiyo simba rekushandisa yemunda mhedzisiro transistor inofanira kunge iri shoma pane iyo yePDSM uye kusiya imwe margin. Iyi parameter kazhinji inodzikira sezvo tembiricha yejunction inowedzera.

TJ, TSTG inoshanda tembiricha uye yekuchengetedza nharaunda tembiricha renji

Aya ma paramita maviri anokwenenzvera tembiricha yejoni inotenderwa nenzvimbo yekushandisa uye yekuchengetera mudziyo. Iri tembiricha renji rakaiswa kuti rizadzikise hudiki hwehupenyu hwekushandisa zvinodiwa zvemudziyo. Kana mudziyo ukavimbiswa kushanda mukati meiyi tembiricha renji, hupenyu hwayo hwekushanda huchawedzerwa zvakanyanya.