Tsananguro yeimwe neimwe parameter yesimba MOSFETs

VDSS Maximum Drain-Source Voltage

Iine gedhi sosi rakapfupikiswa, iyo drain-source voltage rating (VDSS) ndiyo yakanyanya voltage iyo inogona kuiswa kune yekudonhedza-sosi pasina kuparara kweavalanche. Zvichienderana nekupisa, iyo chaiyo avalanche breakdown voltage inogona kunge yakaderera pane yakayerwa VDSS. Kuti uwane tsananguro yakadzama yeV(BR)DSS, ona Electrostatic

Kuti uwane tsananguro yakadzama yeV(BR)DSS, ona Electrostatic Characteristics.

VGS Maximum Gate Source Voltage

Iyo VGS voltage rating ndiyo yakanyanya voltage iyo inogona kuiswa pakati pegedhi sosi matanda. Chinangwa chikuru chekuseta iyi voltage rating ndeyekudzivirira kukuvadzwa kwegedhi oxide kunokonzerwa nekunyanyisa voltage. Iyo chaiyo voltage iyo gedhi oxide inogona kumira yakakwira zvakanyanya kupfuura yakayerwa voltage, asi ichasiyana nemaitiro ekugadzira.

Iyo chaiyo gedhi oxide inogona kumira yakakwira voltages kupfuura yakayerwa voltage, asi izvi zvichasiyana nemaitiro ekugadzira, saka kuchengeta VGS mukati meiyo yakayerwa voltage kunovimbisa kuvimbika kwechishandiso.

ID - Inoenderera Kudonha Kwezvino

ID inotsanangurwa seyepamusoro inotenderwa inoenderera mberi DC iripo pahupamhi yakayerwa tembiricha yekusangana, TJ(max), uye tembiricha yehubhu ye25°C kana kupfuura. Iyi parameter ibasa reyakayerwa kupisa kupisa pakati pejenji uye kesi, RθJC, uye tembiricha yenyaya:

Kuchinja kurasikirwa hakubatanidzwi muID uye zvakaoma kuchengetedza tembiricha yepamusoro pechubhu pa25 ° C (Tcase) kuti ishandiswe. Nokudaro, iyo chaiyo yekushandura ikozvino mumashandisirwo akaoma-kuchinja inowanzova isingasviki hafu yeID rating @ TC = 25 ° C, kazhinji muhuwandu hwe1/3 kusvika 1/4. compementary.

Pamusoro pezvo, iyo ID pane imwe tembiricha inogona kufungidzirwa kana thermal kuramba JA ikashandiswa, inova kukosha kwechokwadi.

IDM - Impulse Drain Current

Iyi parameter inoratidza huwandu hwe pulsed ikozvino iyo mudziyo unogona kubata, iyo yakakwira zvakanyanya kupfuura inoenderera DC ikozvino. Chinangwa chekutsanangura IDM ndechekuti: ohmic nharaunda yemutsara. Kune imwe gedhi-source voltage, iyoMOSFETinoitisa ine yakanyanya drain ikozvino iripo

current. Sezvinoratidzwa mumufananidzo, kune yakapihwa gedhi-source voltage, kana nzvimbo yekushanda iri munzvimbo ine mutsara, kuwedzera kwekudonhedza ikozvino kunosimudza iyo drain-source voltage, iyo inowedzera kurasikirwa kwekuita. Kushanda kwenguva refu pamagetsi akakwirira kunozokonzera kukanganisa kwechigadzirwa. Nokuda kwechikonzero ichi

Naizvozvo, iyo yezita IDM inoda kuiswa pazasi pedunhu payakajairwa gedhi drive voltages. Iyo cutoff point yedunhu iri pamharadzano yeVgs uye curve.

Naizvozvo, iyo yepamusoro ikozvino density muganho inofanirwa kusetwa kudzivirira chip kuti isanyanya kupisa uye kupisa kunze. Izvi zvinonyanya kudzivirira kuyerera kwazvino kuburikidza nepakeji inotungamira, sezvo mune dzimwe nguva "iyo isina kusimba yekubatanidza" pane chip yese haisi iyo chip, asi iyo package inotungamira.

Tichifunga nezvekudzivirirwa kwemhedzisiro yekupisa paIDM, kuwedzera tembiricha kunoenderana nehupamhi hwepurusi, nguva yekufamba pakati pemapurusi, kupisa kwekupisa, iyo RDS (pa), uye waveform uye amplitude yepulse ikozvino. Kungogutsa kuti pulse yazvino haipfuure iyo IDM muganho haivimbisi kuti tembiricha yejunction.

haipfuure huwandu hunobvumirwa kukosha. Tembiricha yekusangana pasi pe pulsed ikozvino inogona kufungidzirwa nekutaura kune nhaurirano yenguva pfupi yekupisa kupisa muThermal uye Mechanical Properties.

PD - Yese Inobvumidzwa Channel Simba Kubvisa

Total Allowable Channel Power Dissipation inogadzirisa simba guru rinoparadza rinogona kuparara nemudziyo uye rinogona kuratidzirwa sekushanda kwehupamhi hwekupisa kwejoni uye kupisa kwekushisa pane imwe nyaya ye25 ° C.

TJ, TSTG - Kushanda uye Kuchengeta Ambient Temperature Range

Aya ma paramita maviri anokwenenzvera tembiricha yejoni inotenderwa nenzvimbo yekushandisa nekuchengetedza yemudziyo. Iri tembiricha renji rakagadzirirwa kusangana nehupenyu hushoma hwekushandisa hwechishandiso. Kuve nechokwadi chekuti mudziyo unoshanda mukati meiyi tembiricha renji ichawedzera zvakanyanya hupenyu hwayo hwekushandisa.

EAS-Single Pulse Avalanche Breakdown Energy

 

Kana iyo voltage overshoot (kazhinji nekuda kwekudonha ikozvino uye kurasika inductance) isingapfuure kuparara kwemagetsi, chishandiso hachizoitirwe kuparara kweavalanche uye nekudaro hachidi kugona kuparadzira kuparara kweavalanche. Iyo avalanche yekupwanya simba inogonesa iyo yechinguvana overshoot iyo mudziyo unogona kushivirira.

Avalanche breakdown energy inotsanangura kukosha kwakachengeteka kweiyo yenguva pfupi yakawandisa overshoot voltage iyo mudziyo unogona kushivirira, uye zvinoenderana nehuwandu hwesimba rinoda kubviswa kuti avalanche iparare.

Chishandiso chinotsanangudza avalanche yekuputsika kwesimba chiyero chinowanzo tsanangura chiyero cheEAS, icho chakafanana nechirevo chechiyero cheUIS, uye chinotsanangura kuti ingani reverse avalanche yekuputsa simba iro mudziyo unogona kunwa zvakachengeteka.

L ndiyo inductance kukosha uye iD ndiyo yepamusoro ikozvino inoyerera muinductor, iyo inongoerekana yashandurwa kuti idonhe ikozvino muchiyero chekuyera. Iyo voltage inogadzirwa pane iyo inductor inodarika iyo MOSFET yekuputsa voltage uye inokonzeresa kuparara kweavalanche. Kana kuparara kweavalanche kuchiitika, ikozvino mune inductor inoyerera kuburikidza neMOSFET mudziyo kunyangwe iyoMOSFETyadzima. Simba rakachengetwa muinductor rakafanana nesimba rakachengetwa mune yakarasika inductor uye yakaraswa neMOSFET.

Kana maMOSFET akabatanidzwa mukufanana, iwo mavhiriji ekuparara haana kumbofanana pakati pemidziyo. Chinowanzoitika ndechekuti imwe mudziyo ndiyo yekutanga kusangana nekuparara kweavalanche uye ese anotevera avalanche breakdown currents (simba) anoyerera nemumudziyo iwoyo.

NZEVE - Simba reKudzokorora Avalanche

Iyo simba rekudzokorora avalanche rave "industry standard", asi pasina kuseta frequency, kumwe kurasikirwa uye kuwanda kwekutonhora, iyi parameter haina chirevo. Kupisa kwekupisa (kutonhora) mamiriro kazhinji kunotonga iyo inodzokororwa avalanche simba. Zvakaomawo kufanotaura mwero wesimba rinogadzirwa nekuparara kweavalanche.

Zvakaomawo kufanotaura mwero wesimba rinogadzirwa nekuparara kweavalanche.

Chirevo chaicho chechiyero cheEAR ndechekugadzirisa iyo yakadzokororwa avalanche yekuputsa simba iyo mudziyo unogona kumira. Tsanangudzo iyi inofungidzira kuti hapana kuganhurirwa pa frequency kuitira kuti mudziyo urege kupisa, izvo zvinogoneka kune chero chishandiso chinogona kuitika kuparara kweavalanche.

Iyo Ipfungwa yakanaka kuyera tembiricha yemudziyo uri kushanda kana kupisa sink kuti uone kana iyo MOSFET mudziyo uri kupisa panguva yekuongororwa kwedhizaini yedhizaini, kunyanya kune zvishandiso izvo zvinogona kuitika kuparara kweavalanche.

IAR - Avalanche Kuparara Kwezvino

Kune mamwe maturusi, maitiro eiyo yazvino seti mupendero pane chip panguva yekuputsika kweavalanche inoda kuti iyo avalanche yazvino IAR ive shoma. Nenzira iyi, iyo avalanche ikozvino inova "yakanaka kudhinda" yeavalanche kuputsa kwesimba kutsanangurwa; inoratidza kugona kwechokwadi kwemudziyo.

Chikamu II Static Electrical Characterization

V(BR)DSS: Drain-Source Breakdown Voltage (Destruction Voltage)

V(BR) DSS (dzimwe nguva inodaidzwa kuti VBDSS) idrain-source voltage parizvino inoyerera nemudhiraini inosvika pamutengo chaiwo pane imwe tembiricha uye gedhi rakapfupikiswa. Iyo drain-source voltage mune iyi kesi ndeye avalanche breakdown voltage.

V(BR)DSS itembiricha yakanaka coefficient, uye pakudzika kwetembiricha V(BR)DSS ishoma pane mwero wepamusoro wedrain-source voltage pa25°C. Pa -50°C, V(BR)DSS ishoma pane mwero mukuru wedrain-source voltage pa -50°C. Pa -50°C, V(BR)DSS ingangoita 90% yehupamhi hwekudonhedza-source voltage rating pa25°C.

VGS(th), VGS(yakadzimwa): Threshold voltage

VGS(th) ndiyo voltage iyo iyo yakawedzera gedhi sosi voltage inogona kuita kuti dhizai ritange kuve neazvino, kana ikozvino kunyangarika kana MOSFET yadzimwa, uye mamiriro ekuyedzwa (drain current, drain source voltage, junction. tembiricha) inotsanangurwa zvakare. Kazhinji, ese MOS gedhi zvishandiso zvakasiyana

threshold voltages ichave yakasiyana. Saka, huwandu hwekusiyana kweVGS (th) hunotsanangurwa. VGS (th) itembiricha isina kunaka, kana tembiricha ichikwiraMOSFETichabatidza pa gedhi rine simba rakaderera.

RDS(pa): Kuramba

RDS(on) ndiko kudonhedza-sosi kuramba kunoyerwa pane chaiyo yekudonhedza ikozvino (kazhinji hafu yeID yazvino), gedhi-source voltage, uye 25°C. Iyo RDS(on) ndiko kudonhedza-sosi kuramba yakayerwa pane chaiyo yekudonha ikozvino (kazhinji hafu yeID yazvino), gedhi-source voltage, uye 25°C.

IDSS: zero gedhi voltage drain current

IDSS ndiyo inodonha iripo pakati pedhiraini uye sosi pane chaiyo drain-source voltage kana gedhi-source voltage iri zero. Sezvo kuvuza kwazvino kuchiwedzera tembiricha, IDSS inotsanangurwa mukamuri uye tembiricha yepamusoro. Kuraswa kwemagetsi nekuda kwekudonha kwazvino kunogona kuverengerwa nekuwanza IDSS nevoltage pakati pezvinobvamo, izvo zvinowanzo shaya basa.

IGSS - Gedhi Source Leakage Yazvino

IGSS ndiyo inodonha ikozvino inoyerera nepagedhi pane chaiyo gedhi sosi voltage.

Chikamu III Dynamic Electrical Characteristics

Ciss : Input capacitance

Iyo capacitance pakati pegedhi nenzvimbo, yakayerwa neiyo AC chiratidzo nekupfupisa kudonhedza kune iyo sosi, ndiyo yekupinza capacitance; Ciss inoumbwa nekubatanidza gedhi drain capacitance, Cgd, uye gedhi sosi capacitance, Cgs, yakafanana, kana Ciss = Cgs + Cgd. Chishandiso chinovhurwa kana iyo yekuisa capacitance ichibhadhariswa kune chikumbaridzo voltage, uye inodzimwa kana ichinge yaburitswa kune imwe kukosha. Naizvozvo, mutyairi wedunhu uye Ciss ane mhedzisiro yakananga pakutendeuka uye kudzima kunonoka kwechigadzirwa.

Coss : Output capacitance

Iyo inobuda capacitance ndiyo capacitance pakati pedhiraini uye sosi yakayerwa neiyo AC chiratidzo kana gedhi rapfupika, Coss inoumbwa nekufananidza iyo drain-source capacitance maCD uye gedhi-drain capacitance Cgd, kana Coss = Cds + Cgd. Kune zvinyoro-kuchinja zvikumbiro, Coss yakakosha nekuti inogona kukonzera resonance mudunhu.

Crss: Reverse Transfer Capacitance

Capacitance yakayerwa pakati pedhireni negedhi rine tsime rakadzika ndiyo reverse transfer capacitance. Iyo reverse yekuchinjisa capacitance yakaenzana negedhi drain capacitance, Cres = Cgd, uye inowanzonzi Miller capacitance, inova imwe yeakakosha maparamita ekusimuka nekudonha kwekuchinja.

Iyo yakakosha parameter yekuchinja kusimuka uye kudonha nguva, uye zvakare inokanganisa kudzima-kudzima nguva yekunonoka. Iyo capacitance inodzikira sezvo iyo drain voltage inowedzera, kunyanya iyo inobuda capacitance uye reverse yekuchinjisa capacitance.

Qgs, Qgd, uye Qg: Gedhi Charge

Kukosha kwegedhi rekutengesa kunoratidza mutero wakachengetwa pane capacitor pakati pematerminals. Sezvo kubhadharisa pane capacitor kuchinje nevoltage panguva yekuchinja, mhedzisiro yekuchaja gedhi inowanzotariswa paunenge uchigadzira gedhi mutyairi maseketi.

Qgs ndiyo inochaja kubva pa0 kusvika padanho rekutanga, Qgd ndicho chikamu kubva kune yekutanga kusvika kune yechipiri inflection point (inonziwo "Miller" charge), uye Qg ndiyo chikamu kubva pa0 kusvika pane iyo VGS yakaenzana nedhiraivha chaiyo. voltage.

Shanduko mukudonhedza ikozvino uye leakage sosi voltage ine diki mhedzisiro pane yegedhi yekuchaja kukosha, uye gedhi rinochaja harichinji nekupisa. Mamiriro ekuedzwa anotsanangurwa. Girafu yekuchaja yegedhi inoratidzwa mubepa re data, kusanganisira rinoenderana gedhi rekuchajisa kusiyanisa macurves kune yakagadziriswa leakage ikozvino uye inosiyana yekuvuza sosi voltage.

Iyo inoenderana gedhi yekuchaja kusiyanisa macurves eiyo yakagadziriswa drain ikozvino uye akasiyana drain source voltage inosanganisirwa mumadhetabheti. Mune girafu, iyo plateau voltage VGS (pl) inowedzera zvishoma nekuwedzera ikozvino (uye inodzikira nekudzikira ikozvino). Iyo voltage yeplateau inoenzanawo neiyo voltage pachikumbaridzo, saka imwe yepakati voltage inoburitsa imwe yakasiyana yemagetsi.

voltage.

Dhiagiramu inotevera inotsanangurwa zvakanyanya uye inoshandiswa:

td (pa): pane-nguva yekunonoka nguva

Iyo yekunonoka-nguva nguva inguva kubva apo gedhi sosi voltage inokwira kusvika ku10% yegedhi dhiraivha yemagetsi kusvika painodonha ikozvino inokwira kusvika ku10% yeinotsanangurwa ikozvino.

td(off): Kudzima nguva yekunonoka

Iyo yekudzima-yekunonoka nguva inguva yakapfuura kubva apo gedhi sosi voltage inodonha kusvika 90% yegedhi drive voltage kusvika painodonha ikozvino inodonha kusvika 90% yeinotsanangurwa ikozvino. Izvi zvinoratidza kunonoka kwakaitika kusati kwaendeswa kumutoro.

tr: Nguva yekusimuka

Nguva yekusimuka ndiyo nguva inotora kuti dhizaini risimuke kubva pa10% kusvika 90%.

tf : Nguva yekudonha

Nguva yekudonha ndiyo nguva inotora kuti dhizaini ikozvino idonhe kubva pa90% kusvika 10%.