This is a multi-part message in MIME format. --------------040607000305050007000408 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by pch.mit.edu id l3Q26h1Q001720 Crist=F3v=E3o Dalla Costa wrote: > On 4/25/07, Gerhard Fiedler wrote: >> rlistas wrote: >> >>> Microchip TC4420. >>> >>> Easy to use, very robust. >> You still have to create your source-referenced gate voltage, right? >=20 >=20 > I settled for Microchip TC4426. >=20 > Microchip=B4s MOSFET drivers take 10-15V on their supply but their digi= tal > input considers > 2.4V to be logic high so they can be driven directly = from > a 5 V or 3 V signal level. Nothing else needed. Sort of. If you have a clock signal or PIC pin or whatever to drive the TC44xx chip, you can get your top side supply as shown in the attached gif. 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