2010. 6. 16 1/6 semiconductor technical data KF3N40W n channel mos field effect transistor revision no : 0 general description this planar stripe mosfet has better characteristics, such as fast switching time, low on resistance, low gate charge and excellent avalanche characteristics. it is mainly suitable for led lighting and switching mode power supplies. features h v dss(min.) = 400v, i d = 2a h drain-source on resistance : r ds(on) =3.4 ? (max) @v gs =10v h qg(typ.) =4.4nc maximum rating (tc=25 ? ) * : drain current limited by maximum junction temperature. ** : surface mounted on fr4 board 2 inch ? 2 inch ? 1mm. characteristic symbol rating unit drain-source voltage v dss 400 v gate-source voltage v gss ? 30 v drain current @t c =25 ? i d 2* a @t c =100 ? 1.2* pulsed (note1) i dp 6* single pulsed avalanche energy (note 2) e as 52 mj repetitive avalanche energy (note 1) e ar 0.2 mj peak diode recovery dv/dt (note 3) dv/dt 4.5 v/ns drain power dissipation t a =25 ? p d 2** w derate above25 ? 0.02 w/ ? maximum junction temperature t j 150 ? storage temperature range t stg -55 q 150 ? thermal characteristics thermal resistance, junction-to-case r thjc 10.0 ? /w thermal resistance, junction-to- ambient r thja 62.5** ? /w pin connection downloaded from: http:///
2010. 6. 16 2/6 KF3N40W revision no : 0 electrical characteristics (tc=25 ? ) characteristic symbol test condition min. typ. max. unit static drain-source breakdown voltage bv dss i d =250 a, v gs =0v 400 - - v breakdown voltage temperature coefficient bv dss / t j i d =250 a, referenced to 25 ? - 0.4 - v/ ? drain cut-off current i dss v ds =400v, v gs =0v, - - 10 a gate threshold voltage v th v ds =v gs , i d =250 a 2.5 - 4.5 v gate leakage current i gss v gs = ? 30v, v ds =0v - - ? 100 na drain-source on resistance r ds(on) v gs =10v, i d =1a - 2.8 3.4 ? dynamic total gate charge q g v ds =320v, i d =2.2a v gs =10v (note4,5) - 4.4 5.8 nc gate-source charge q gs - 1.0 - gate-drain charge q gd - 2.0 - turn-on delay time t d(on) v dd =200v, i d =2.2a r g =25 ? (note4,5) v gs =10v - 10 - ns turn-on rise time t r - 11 - turn-off delay time t d(off) - 20 - turn-off fall time t f - 17 - input capacitance c iss v ds =25v, v gs =0v, f=1.0mhz - 163 211 pf output capacitance c oss - 26 - reverse transfer capacitance c rss - 2.5 - source-drain diode ratings continuous source current i s v gs |