Zambiri zomwe zimagwiritsidwa ntchito pagulu la SMD MOSFET latsatana

Kodi ntchito ya MOSFET ndi chiyani?

Ma MOSFET amatenga gawo pakuwongolera mphamvu yamagetsi amagetsi onse. Pakalipano, palibe ma MOSFET ambiri omwe amagwiritsidwa ntchito pa bolodi, kawirikawiri pafupifupi 10. Chifukwa chachikulu ndi chakuti ambiri a MOSFET amaphatikizidwa mu chip IC. Popeza udindo waukulu wa MOSFET ndi kupereka voteji khola Chalk, choncho nthawi zambiri ntchito CPU, GPU ndi socket, etc.Zithunzi za MOSFETNthawi zambiri amakhala pamwamba ndi pansi mawonekedwe a gulu la awiri amawonekera pa bolodi.

Phukusi la MOSFET

Chip MOSFET mu kupanga yatha, muyenera kuwonjezera chipolopolo kwa MOSFET Chip, ndiye phukusi MOSFET. MOSFET Chip chipolopolo ali ndi thandizo, chitetezo, kuzirala tingati, komanso Chip kupereka kugwirizana magetsi ndi kudzipatula, kuti chipangizo MOSFET ndi zigawo zina kupanga dera wathunthu.

Malinga ndi unsembe mu njira PCB kusiyanitsa,MOSFETphukusi lili ndi magulu awiri akulu: Kupyolera mu Hole ndi Surface Mount. anaikapo ndi MOSFET pini kudzera mabowo PCB woyika welded pa PCB. Surface Mount ndi pini ya MOSFET ndi sink flange yowotcherera ku PCB pamwamba pads.

Zolemba Zapaketi Zokhazikika KWA Phukusi

TO (Transistor Out-line) ndizomwe zimapangidwira phukusi, monga TO-92, TO-92L, TO-220, TO-252, ndi zina zambiri. M'zaka zaposachedwa, kufunikira kwa msika wokwera pamwamba kwakula, ndipo ma phukusi a TO apita patsogolo mpaka pamaphukusi okwera.

TO-252 ndi TO263 ndi mapaketi okwera pamwamba. TO-252 imadziwikanso kuti D-PAK ndipo TO-263 imadziwikanso kuti D2PAK.

Phukusi la D-PAK MOSFET lili ndi maelekitirodi atatu, chipata (G), kukhetsa (D), gwero (S). Pini imodzi yakuda (D) imadulidwa popanda kugwiritsa ntchito kumbuyo kwa sinki yotentha kuti ikhetse (D), yowotcherera mwachindunji ku PCB, mbali imodzi, kuti itulutse pakalipano, mbali imodzi, kudzera Kutentha kwa PCB. Chifukwa chake pali mapadi atatu a PCB D-PAK, pad (D) pad ndi yayikulu.

Phukusi TO-252 pini chithunzi

Phukusi la Chip lodziwika bwino kapena lapawiri pamzere, lomwe limatchedwa DIP (DIP lapawiri ln-line Package) .DIP phukusi panthawiyo lili ndi PCB yoyenera (lodi losindikizidwa) lopangidwa ndi perforated, losavuta kuposa TO-mtundu PCB wiring ndi ntchito. ndizosavuta komanso zina mwa mawonekedwe a kapangidwe kake kaphatikizidwe kamitundu ingapo, kuphatikiza ma multilayer ceramic dual in-line DIP, single-wosanjikiza Ceramic Dual In-Line.

DIP, kutsogolera chimango DIP ndi zina zotero. Amagwiritsidwa ntchito popanga ma transistors amagetsi, phukusi lamagetsi lamagetsi.

ChipMOSFETPhukusi

Phukusi la SOT

SOT (Small Out-Line Transistor) ndi phukusi laling'ono la transistor. Phukusili ndi phukusi laling'ono la SMD lamagetsi, laling'ono kuposa phukusi la TO, lomwe limagwiritsidwa ntchito pamagetsi ang'onoang'ono a MOSFET.

Phukusi la SOP

SOP (Phukusi Laling'ono Laling'ono) limatanthawuza "Phukusi Laling'ono Laling'ono" mu Chitchaina, SOP ndi imodzi mwamapaketi okwera pamwamba, zikhomo zochokera kumbali ziwiri za phukusi zomwe zimakhala ngati mapiko a gull (zooneka ngati L), zinthuzo. ndi pulasitiki ndi ceramic. SOP imatchedwanso SOL ndi DFP. Miyezo ya phukusi la SOP ikuphatikizapo SOP-8, SOP-16, SOP-20, SOP-28, etc. Nambala pambuyo pa SOP imasonyeza chiwerengero cha mapini.

Phukusi la SOP la MOSFET nthawi zambiri limagwiritsa ntchito mawonekedwe a SOP-8, makampaniwa amakonda kusiya "P", yotchedwa SO (Small Out-Line).

Phukusi la SMD MOSFET

SO-8 phukusi pulasitiki, palibe mbale matenthedwe m'munsi, osauka kutentha dissipation, ambiri ntchito otsika mphamvu MOSFET.

SO-8 inayamba kupangidwa ndi PHILIP, ndiyeno pang'onopang'ono inachokera ku TSOP (phukusi laling'ono laling'ono), VSOP (phukusi lachidule laling'ono kwambiri), SSOP (yochepetsedwa SOP), TSSOP (yoonda yochepetsetsa SOP) ndi zina zodziwika bwino.

Mwa izi zotengera phukusi, TSOP ndi TSSOP amagwiritsidwa ntchito kwambiri pamaphukusi a MOSFET.

Chip MOSFET Phukusi

QFN (Quad Flat Non-leaded package) ndi imodzi mwamaphukusi okwera pamwamba, aku China omwe amatchedwa kuti mbali zinayi zopanda kutsogolera phukusi lathyathyathya, ndi kukula kwa pad ndi kakang'ono, kakang'ono, pulasitiki ngati chinthu chosindikizira cha chip chip. Ukadaulo wopakapaka, womwe tsopano umadziwika kuti LCC. Tsopano ikutchedwa LCC, ndipo QFN ndi dzina lolembedwa ndi Japan Electrical and Mechanical Industries Association. Phukusili limapangidwa ndi ma electrode olumikizana nawo mbali zonse.

Phukusili limapangidwa ndi ma electrode contacts kumbali zonse zinayi, ndipo popeza palibe kutsogolera, malo okwera ndi ochepa kuposa QFP ndipo kutalika kwake ndi kochepa kuposa kwa QFP. Phukusili limadziwikanso kuti LCC, PCLC, P-LCC, ndi zina.