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tutuca2003 Guest
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Posted: Fri Feb 19, 2010 12:49 pm Post subject: as replacing stu407 |
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hi!
I have to change the IC STU407D.
In Argentina there.
Instead I put a P-channel MOSFET and one n-channel and I do not work, anyone know why?
I have done to replace other IC as the AP4511 and went perfect
Greetings and thanks |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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Posted: Fri Feb 19, 2010 11:44 pm Post subject: |
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Should be close but perhaps your replacement transistor specs are not close enough or may have additional problem elsewhere? When substituting, Pay particular attention to Rds, Vgs and Tr on/off.
Also the two drains are tied within the STU407D |
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