Imininingwane evame ukusetshenziswa yephakheji ye-SMD MOSFET yokulandelana kwephinikhodi

Iyini indima yama-MOSFET?

Ama-MOSFET adlala indima ekulawuleni amandla kagesi alo lonke uhlelo lokuphakelwa kukagesi. Njengamanje, awekho ama-MOSFET amaningi asetshenziswa ebhodini, ngokuvamile angaba ngu-10. Isizathu esiyinhloko ukuthi ama-MOSFET amaningi ahlanganiswe ku-IC chip. Njengoba indima eyinhloko ye-MOSFET ukuhlinzeka nge-voltage ezinzile yezesekeli, ngakho-ke ivame ukusetshenziswa ku-CPU, i-GPU nesokhethi, njll.Ama-MOSFETngokuvamile ngenhla nangaphansi ifomu leqembu lababili livela ebhodini.

Iphakheji ye-MOSFET

I-chip ye-MOSFET ekukhiqizeni isiqediwe, udinga ukwengeza igobolondo ku-chip ye-MOSFET, okungukuthi, iphakheji ye-MOSFET. Igobolondo le-chip ye-MOSFET linokwesekwa, ukuvikela, umphumela wokupholisa, kodwa futhi ne-chip ukunikeza uxhumano lukagesi nokuhlukaniswa, ukuze idivayisi ye-MOSFET nezinye izakhi zenze isifunda esiphelele.

Ngokuhambisana nokufakwa ngendlela ye-PCB yokuhlukanisa,I-MOSFETIphakheji inezigaba ezimbili eziyinhloko: Nge-Hole ne-Surface Mount. kufakwe iphinikhodi ye-MOSFET ngezimbobo ezikhwezwayo ze-PCB ezishiselwe ku-PCB. I-Surface Mount iyiphinikhodi ye-MOSFET ne-heat sink flange eshiselwe kumaphedi angaphezulu e-PCB.

 

 

 

Ukucaciswa Kwephakheji Okujwayelekile KUYA Ephaketheni

I-TO (Transistor Out-line) ukucaciswa kwephakheji kwangaphambi kwesikhathi, okufana ne-TO-92, TO-92L, TO-220, TO-252, njll. kungumklamo wephakheji we-plug-in. Eminyakeni yakamuva, isidingo semakethe ye-surface Mount senyukile, futhi amaphakheji we-TO athuthukele kumaphakheji angaphezulu.

I-TO-252 ne-TO263 amaphakheji wokukhweza ngaphezulu. I-TO-252 yaziwa nangokuthi i-D-PAK kanti i-TO-263 yaziwa nangokuthi i-D2PAK.

Iphakheji ye-D-PAK I-MOSFET inama-electrode amathathu, isango (G), i-drain (D), umthombo (S). Iphinikhodi eyodwa ye-drain (D) isikwa ngaphandle kokusebenzisa ingemuva le-sink yokushisa yokudonsa (D), ishiselwe ngqo ku-PCB, ngakolunye uhlangothi, ukuze kukhishwe amandla aphezulu, ngakolunye uhlangothi, ngokusebenzisa Ukuchithwa kokushisa kwe-PCB. Ngakho-ke kukhona amaphedi e-PCB D-PAK amathathu, iphedi yokudonsa (D) inkulu.

Iphakheji TO-252 pin idayagramu

Iphakheji ye-Chip edumile noma ekabili emgqeni wephakheji, ebizwa ngokuthi i-DIP (Iphakheji ye-Dual ln-line). Iphakheji le-DIP ngaleso sikhathi linokufakwa kwe-PCB efanelekile (ibhodi lesifunda eliphrintiwe) elinezimbobo, okulula kunohlobo lwe-TO-izintambo ze-PCB nokusebenza. kulula kakhulu nokunye kwezinye izici zesakhiwo sephakeji yayo ngesimo samafomu amaningana, kufaka phakathi i-multi-layer ceramic dual in-line DIP, ungqimba olulodwa lwe-Ceramic Dual In-Line

I-DIP, i-lead frame DIP nokunye. Okuvame ukusetshenziswa kuma-transistors amandla, iphakethe le-chip yesilawuli se-voltage.

 

I-chipI-MOSFETIphakheji

Iphakheji ye-SOT

I-SOT (I-Small Out-Line Transistor) iphakethe elincane le-transistor. Le phakheji iyiphakheji ye-SMD encane yamandla e-transistor, encane kunephakheji ye-TO, ngokuvamile esetshenziselwa amandla amancane e-MOSFET.

Iphakheji ye-SOP

I-SOP (Iphakheji Elincane Eliphuma Emgqeni) lisho ukuthi "Iphakheji Lohlaka Oluncane" ngesiShayina, i-SOP ingenye yamaphakheji angaphezulu, izikhonkwane ezivela ezinhlangothini ezimbili zephakheji zisesimweni sephiko le-gull (elimise u-L), impahla. ipulasitiki ne-ceramic. I-SOP ibizwa nangokuthi i-SOL ne-DFP. Amazinga wephakheji we-SOP ahlanganisa i-SOP-8, i-SOP-16, i-SOP-20, i-SOP-28, njll. Inombolo engemva kwe-SOP ibonisa inani lamaphini.

Iphakethe le-SOP le-MOSFET livame ukusebenzisa ukucaciswa kwe-SOP-8, imboni ivamise ukushiya u-"P", obizwa nge-SO (Small Out-Line).

Iphakheji ye-SMD MOSFET

Iphakethe lepulasitiki le-SO-8, alikho ipuleti lesisekelo esishisayo, ukuchithwa kokushisa okungekuhle, ngokuvamile okusetshenziselwa i-MOSFET enamandla aphansi.

I-SO-8 yaqala ukuthuthukiswa yi-PHILIP, bese kancane kancane itholakala ku-TSOP (iphakheji elincane le-outline encane), i-VSOP (iphakheji elincane kakhulu le-outline), i-SSOP (encishisiwe i-SOP), i-TSSOP (i-SOP encishisiwe encane) nezinye izincazelo ezijwayelekile.

Phakathi kwalokhu kucaciswa kwephakheji etholiwe, i-TSOP ne-TSSOP zivame ukusetshenziselwa amaphakheji e-MOSFET.

Chip MOSFET Amaphakheji

I-QFN (i-Quad Flat Non-leaded package) ingelinye lamaphakeji wokukhweza ngaphezulu, amaShayina abizwa nge-four-side non-lead flat package, iwusayizi wephedi mncane, mncane, ipulasitiki njengendawo yokuvala ye-chip ephezulu ephumayo. ubuchwepheshe bokupakisha, manje okwaziwa kakhulu njenge-LCC. Manje isibizwa nge-LCC, futhi i-QFN yigama elishiwo yi-Japan Electrical and Mechanical Industries Association. Iphakheji ilungiselelwe ngoxhumana nabo be-electrode kuzo zonke izinhlangothi.

Iphakheji ilungiselelwe ngoxhumana nabo be-electrode kuzo zonke izinhlangothi ezine, futhi njengoba kungabikho umkhondo, indawo yokukhweza incane kune-QFP futhi ukuphakama kuphansi kune-QFP. Le phakheji yaziwa nangokuthi i-LCC, i-PCLC, i-P-LCC, njll.