He aha ke kuleana o nā MOSFET?
He kuleana ko nā MOSFET i ka hoʻoponopono ʻana i ka volta o ka ʻōnaehana lako mana holoʻokoʻa. I kēia manawa, ʻaʻole nui nā MOSFET i hoʻohana ʻia ma ka papa, ma kahi o 10. ʻO ke kumu nui ʻo ia ka hapa nui o nā MOSFET i hoʻohui ʻia i ka chip IC. No ka mea ʻo ka hana nui o ka MOSFET ka hāʻawi ʻana i kahi volta paʻa no nā mea pono, no laila hoʻohana maʻamau ia i ka CPU, GPU a me ke kumu, etc.MOSFETAia ma luna a ma lalo ke ʻano o kahi hui ʻelua e ʻike ʻia ma ka papa.
Pūʻolo MOSFET
Ua hoʻopau ʻia ka chip MOSFET i ka hana, pono ʻoe e hoʻohui i kahi pūpū i ka chip MOSFET, ʻo ia hoʻi, MOSFET package. He kākoʻo ko MOSFET chip shell, pale, hopena hoʻoluʻu, akā no ka chip e hoʻolako i ka pilina uila a me ka kaʻawale, i hiki ai i ka MOSFET a me nā mea ʻē aʻe ke hana i kahi kaapuni piha.
E like me ka hoʻokomo ʻana i ke ala PCB e ʻike ai,MOSFETʻElua mahele nui o ka pūʻolo: Ma o ka Hole a me Surface Mount. Hoʻokomo ʻia ka pine MOSFET ma o nā puka kau PCB i wili ʻia ma ka PCB. ʻO Surface Mount ka pine MOSFET a me ka flange wela i hoʻopaʻa ʻia i nā pā ʻili PCB.
Nā ʻōlelo kikoʻī maʻamau TO Package
ʻO TO (Transistor Out-line) ka ʻōlelo kikoʻī mua, e like me TO-92, TO-92L, TO-220, TO-252, a pēlā aku. I nā makahiki i hala iho nei, ua hoʻonui ʻia ka noi ʻana o ka mākeke mauna mauna, a ua holomua nā pūʻolo TO i nā pūʻolo mauna i luna.
ʻO TO-252 a me TO263 nā pūʻolo mauna ili. ʻIke ʻia ka TO-252 ʻo D-PAK a ʻo ka TO-263 ka inoa ʻo D2PAK.
He ʻekolu mau electrodes ʻo D-PAK MOSFET, ʻīpuka (G), ka wai (D), kumu (S). Hoʻokiʻoki ʻia kekahi o ka pine (D) me ka hoʻohana ʻole ʻana i ke kua o ka wela wela no ke kahawai (D), i hoʻopili pololei ʻia i ka PCB, ma kekahi ʻaoʻao, no ka hoʻopuka ʻana o ke au kiʻekiʻe, ma kekahi ʻaoʻao, ma o ka ʻO ka hoʻopau ʻana i ka wela PCB. No laila, ʻekolu mau ʻāpana PCB D-PAK, ʻoi aku ka nui o ka pahu wai (D).
Pūʻolo TO-252 pin diagram
ʻO ka pōʻai Chip kaulana a i ʻole pālua i loko o ka laina, i kapa ʻia ʻo DIP (Dual ln-line Package). ʻoi aku ka maʻalahi a pēlā aku kekahi o nā hiʻohiʻona o ke ʻano o kāna pūʻolo ma ke ʻano o nā ʻano he nui, me ka multi-layer ceramic dual in-line DIP, single-layer Ceramic Dual In-Line.
DIP, ka pahu alakai DIP a pela aku. Hoʻohana maʻamau i nā transistors mana, puʻupuʻu chip regulator voltage.
ChipMOSFETPūʻolo
Pūʻolo SOT
ʻO SOT (Small Out-Line Transistor) kahi pūʻolo transistor outline liʻiliʻi. ʻO kēia pūʻolo he pūʻolo transistor mana liʻiliʻi SMD, ʻoi aku ka liʻiliʻi ma mua o ka pūʻolo TO, hoʻohana maʻamau no ka MOSFET mana liʻiliʻi.
Pūʻolo SOP
SOP (Small Out-Line Package) 'o ia ho'i "Small Outline Package" ma ka 'ōlelo Haina, 'o SOP kekahi o nā pū'olo mauna ili, nā pine mai nā 'ao'ao 'elua o ka pū'olo i ke 'ano o ka eheu gull (L-like), ka mea. ʻo ka plastik a me ka keramika. Kapa ʻia ʻo SOP ʻo SOL a me DFP. Aia nā maʻamau o ka pūʻolo SOP SOP-8, SOP-16, SOP-20, SOP-28, a pēlā aku. ʻO ka helu ma hope o SOP e hōʻike ana i ka helu o nā pine.
ʻO ka pūʻolo SOP o MOSFET ka hapa nui o ka SOP-8 kikoʻī, makemake ka ʻoihana e haʻalele i ka "P", i kapa ʻia ʻo SO (Small Out-Line).
Pūʻolo SMD MOSFET
ʻO ka pōʻai plastik SO-8, ʻaʻohe pā wela wela, ka wela wela, hoʻohana maʻamau no ka MOSFET haʻahaʻa.
Hoʻokumu mua ʻia ʻo SO-8 e PHILIP, a laila loaʻa mālie mai TSOP (paʻi kikoʻī liʻiliʻi liʻiliʻi), VSOP (puʻi kikoʻī liʻiliʻi liʻiliʻi), SSOP (SOP hoʻemi ʻia), TSSOP (SOP i hoʻemi ʻia) a me nā kikoʻī maʻamau.
Ma waena o kēia mau ʻōlelo kikoʻī i loaʻa, TSOP a me TSSOP ka mea maʻamau no nā pūʻolo MOSFET.
Puke MOSFET Chip
ʻO QFN (Quad Flat Non-leaded package) ʻo ia kekahi o nā puʻupuʻu mauna ʻili, ua kapa ʻia ʻo Kina ka ʻaoʻao ʻehā ʻaoʻao ʻole alakaʻi pālahalaha, he liʻiliʻi liʻiliʻi, liʻiliʻi, plastic e like me ka mea hoʻopaʻa inoa o ka puʻupuʻu mauna e puka mai ana. ʻenehana hōkeo, ʻike ʻia i kēia manawa ʻo LCC. Kapa ʻia ʻo ia i kēia manawa ʻo LCC, a ʻo QFN ka inoa i ʻōlelo ʻia e ka Japan Electrical and Mechanical Industries Association. Hoʻonohonoho ʻia ka pūʻolo me nā pilina electrode ma nā ʻaoʻao āpau.
Hoʻonohonoho ʻia ka pūʻolo me nā pilina electrode ma nā ʻaoʻao ʻehā, a no ka mea ʻaʻohe alakaʻi, ʻoi aku ka liʻiliʻi o ka wahi kau ma mua o QFP a ʻoi aku ke kiʻekiʻe ma mua o ka QFP. ʻIke ʻia kēia pūʻolo he LCC, PCLC, P-LCC, etc.
Ka manawa kau: Apr-12-2024
