Nyocha ọdịda MOSFET: Nghọta, Mgbochi, na Ngwọta

Nyocha ọdịda MOSFET: Nghọta, Mgbochi, na Ngwọta

Oge nzipu: Dec-13-2024

Nchịkọta ngwa ngwa:MOSFET nwere ike daa n'ihi nrụgide eletrik dị iche iche, ọkụ na igwe. Ịghọta ụdị ọdịda ndị a dị oke mkpa maka ịmepụta sistemu eletriki eletrik a pụrụ ịdabere na ya. Ntuziaka a zuru oke na-enyocha usoro ọdịda nkịtị na atụmatụ mgbochi.

Nkezi-ppm-maka-dị-iche-MOSFET-ọdịdị-ỤdịỤdị ọdịda MOSFET na-emekarị yana ihe kpatara ya

1. Voltaji metụtara ọdịda

  • Ọnụ ụzọ ámá oxide mmebi
  • Oke oke mmiri ozuzo
  • Punch-site
  • Mmebi mkpofu kwụ ọtọ

2. Mmebi metụtara okpomọkụ

  • Mgbasa nke abụọ
  • Thermal agba ọsọ
  • Delamination ngwugwu
  • Mgbapụ waya ebuli elu
Ụdị ọdịda Ihe kpatara ya Ihe ịrịba ama ịdọ aka ná ntị Ụzọ mgbochi
Ọnụ ụzọ ámá Oxide mmebi Oke VGS, mmemme ESD Mmụba ọpụpụ ọnụ ụzọ ámá Nchekwa voltaji ọnụ ụzọ, usoro ESD
Thermal na-agba ọsọ Oke ike mkpofu Okpomọkụ na-ebili, belata ọsọ ngbanwe Kwesịrị ekwesị thermal imewe, derating
Oke oke mmiri ozuzo Ọkpụkpụ voltaji, mgbanwe inductive na-enweghị mgbachi Mgbapu-isi iyi mkpụmkpụ Snubber sekit, voltaji clamps

Ngwọta MOSFET siri ike nke Winsok

Ọgbọ MOSFET ọhụrụ anyị nwere usoro nchebe dị elu:

  • SOA emelitere (mpaghara ọrụ nchekwa)
  • Ịrụ ọrụ ọkụ emelitere
  • Nchedo ESD arụnyere n'ime ya
  • Atụmatụ oke oke mmiri ozuzo

Nyocha zuru ezu nke usoro ọdịda

Ọnụ ụzọ ámá Oxide mmebi

Oke dị egwu:

  • Ọnụ Ụzọ Ámá-Isi Iyi Voltaji kacha: ± 20V ụdị
  • Ọkpụrụkpụ Oxide Ọnụ ụzọ: 50-100nm
  • Ike ubi mmebi: ~ 10 MV / cm

Usoro mgbochi:

  1. Tinye voltaji ọnụ ụzọ ámá
  2. Jiri usoro resistors ọnụ ụzọ ámá
  3. Wụnye diode TVS
  4. Omume nhazi PCB kwesịrị ekwesị

Njikwa okpomọkụ na mgbochi ọdịda

Ụdị ngwugwu Oke Junction Nkwacha akwadoro Ngwọta jụrụ oyi
TO-220 175°C 25% Heatsink + Fan
D2PAK 175°C 30% Mpaghara ọla kọpa buru ibu + Heatsink nhọrọ
SOT-23 150°C 40% PCB ọla kọpa wụsa

Ndụmọdụ chepụta dị mkpa maka ntụkwasị obi MOSFET

Nhazi PCB

  • Wedata mpaghara akaghị ọnụ ụzọ ámá
  • Ike dị iche iche na mgba mgbaama
  • Jiri njikọ isi mmalite Kelvin
  • Kwalite ikpo ọkụ site na ntinye

Nchekwa sekit

  • Tinye sekit mmalite dị nro
  • Jiri snubbers kwesịrị ekwesị
  • Tinye ihe nchebe voltaji
  • Nyochaa okpomọkụ ngwaọrụ

Usoro nyocha na nnwale

Usoro nyocha MOSFET bụ isi

  1. Nlele Parameters Static
    • voltaji ọnụ ụzọ ámá (VGS(th))
    • Mgbapu-isi iyi na-eguzogide (RDS(na))
    • Ọnụ ụzọ mgbapụ ugbu a (IGSS)
  2. Nnwale dị egwu
    • Oge mgbanwe (ton, toff)
    • Njirimara ụgwọ ọnụ ụzọ ámá
    • Ike mmepụta

Ọrụ nkwalite ntụkwasị obi Winsok

  • Nyochaa ngwa zuru oke
  • Nyocha nke thermal na njikarịcha
  • Nnwale ntụkwasị obi na nkwado
  • Nkwado ụlọ nyocha ọdịda ọdịda

Ndekọ ntụkwasị obi na nyocha oge ndụ

Usoro ntụkwasị obi isi

Ọnụego FIT (ọdịda n'oge)

Ọnụọgụ ọdịda kwa ijeri ngwaọrụ-awa

0.1 - 10 dabara adaba

Dabere na usoro MOSFET ọhụrụ Winsok n'okpuru ọnọdụ aha

MTTF (nke pụtara oge ọdịda)

Oge ndụ ndị a tụrụ anya n'okpuru ọnọdụ akọwapụtara

>10^6 awa

Na TJ = 125 ° C, voltaji ọnụ

Ọnụnọ nlanarị

Pasent ngwaọrụ dị ndụ gafere oge ikike

99.9%

Na afọ 5 nke ọrụ na-aga n'ihu

Ihe ndị na-emebi ndụ oge ndụ

Ọnọdụ ọrụ Isi ihe na-emebi emebi Mmetụta na ndụ
Okpomọkụ (kwa 10 Celsius C karịa 25 Celsius C) 0,5x Mbelata 50%.
Nchegbu voltaji (95% nke oke oke) 0,7x Mbelata 30%.
Ugboro ngbanwe (2x nominal) 0,8x Mbelata 20%.
iru mmiri (85% RH) 0,9x Mbelata 10%.

Nkesa puru omume ogologo ndụ

onyonyo (1)

Nkesa Weibull nke MOSFET oge ndụ na-egosi ọdịda mmalite, ọdịda enweghị usoro, na oge ike ọgwụgwụ

Ihe na-akpata nrụgide gburugburu ebe obibi

Ịnya igwe okpomọkụ

85%

Mmetụta na mbelata oge ndụ

Ịgba ígwè ike

70%

Mmetụta na mbelata oge ndụ

Nchegbu Mechanical

45%

Mmetụta na mbelata oge ndụ

Nsonaazụ Nnwale Ndụ agbakwunyere

Ụdị ule Ọnọdụ Ogologo oge Ọnụọgụ ọdịda
HTOL (Ndụ na-arụ ọrụ okpomọkụ dị elu) 150°C, Max VDS 1000 awa <0.1%
THB (Okpomọkụ iru mmiri bias) 85°C/85% RH 1000 awa <0.2%
TC (Ịnya igwe okpomọkụ) -55°C ruo +150°C 1000 okirikiri <0.3%

Mmemme mmesi obi ike nke Winsok

2

Nlele nyocha

  • Nnwale mmepụta 100%.
  • Nnwale nke oke
  • Njirimara dị ike
  • Nyocha anya

Ule ntozu

  • Nyochaa nrụgide gburugburu ebe obibi
  • Nkwenye ntụkwasị obi
  • Nnwale iguzosi ike n'ezi ihe ngwugwu
  • Nlekọta ntụkwasị obi ogologo oge