Difference between mosfet with and without logic level in inverter???

[SAUHING LEE]

I am looking for a replacement for AOD444, a n-channel mosfet in an
inverter
http://www.aosmd.com/web/products/product_display.jsp?displayType=mos...

www.aosmd.com/pdfs/datasheet/AOD444.pdf

AOD 444 , vds :60v, vgs:20v, id: 12A

I checked digikey.com, but only 2 similar one are available. They are
IPD640N06L G
http://www.infineon.com/dgdl/IPD640N06L+G+Rev1.2.pdf?folderId=db3a304...

and

MTD3055VL
http://www.fairchildsemi.com/ds/MT/MTD3055VL.pdf

They both look similar to AOD 444, but they are logic level.

QUUESTION 1
Will it work if i substitute a mosfet (without logic level ) with
another mosfet that has logic level?

Also, i found another similar one ,std12nf06l
http://dkc1.digikey.com/Redirect.aspx?url=http://www.st.com/stonline/...

The Continuous drain current ID at 25 degree C is the same as aod444.
BUT it is smaller than AOD444 at 100 C.

QUUESTION 2
When replacing mosfet, do we have to consider the ID at TC=100
degree?

 

[Jamie]

I am looking for a replacement for AOD444, a n-channel mosfet in an
inverter
http://www.aosmd.com/web/products/product_display.jsp?displayType=mos...

www.aosmd.com/pdfs/datasheet/AOD444.pdf

AOD 444 , vds :60v, vgs:20v, id: 12A

I checked digikey.com, but only 2 similar one are available. They are
IPD640N06L G
http://www.infineon.com/dgdl/IPD640N06L+G+Rev1.2.pdf?folderId=db3a304...

and

MTD3055VL
http://www.fairchildsemi.com/ds/MT/MTD3055VL.pdf

They both look similar to AOD 444, but they are logic level.

QUUESTION 1
Will it work if i substitute a mosfet (without logic level ) with
another mosfet that has logic level?

Also, i found another similar one ,std12nf06l
http://dkc1.digikey.com/Redirect.aspx?url=http://www.st.com/stonline/...

The Continuous drain current ID at 25 degree C is the same as aod444.
BUT it is smaller than AOD444 at 100 C.

QUUESTION 2
When replacing mosfet, do we have to consider the ID at TC=100
degree?

the MTD3055VL seems to be a better Rds(on), than the original which is
in your favor...
I would go with that one.

The others, I could link to for some reason..

 

[SAUHING LEE]

the MTD3055VL seems to be a better Rds(on), than the original which is
in your favor...
I would go with that one.

The others, I could link to for some reason..

Will the inverter work if the original one had not logic level, and
MTD3055VL has logic level?

 

[Jamie]

Will the inverter work if the original one had not logic level, and
MTD3055VL has logic level?

via the spec's you gave, the original one is a logic level.. It just
does not state that.
logic level normally means the on state voltage required, which is a
low level.

Since both the original and your selected are very close, your the
selection is fine, also since this used in a inverter. It's a perfect
fit.


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