AOT20N25 250v,20a n-channel mosfet v ds i d (at v gs =10v) 20a r ds(on) (at v gs =10v) < 0.17 w symbol parameter absolute maximum ratings t a =25c unless otherwise noted 300v@150 AOT20N25 the AOT20N25 is fabricated using an advanced high voltage mosfet process that is designed to deliver high levels of performance and robustness in popular ac- dc applications.by providing low r ds(on) , c iss and c rss along with guaranteed avalanche capability this device ca n be adopted quickly into new and existing offline power supply designs.this device is ideal for boost converters a nd synchronous rectifiers for consumer, telecom, indus trial power supplies and led backlighting. units g d s symbol v ds v gs i dm i as e as peak diode recovery dv/dt dv/dt t j , t stg t l symbol r q ja r q cs r q jc c/w AOT20N25 units a c mj w w/ o c -55 to 150 0.6 v/ns c/w 0.5 c maximum junction-to-case 208 1.7 avalanche current c single pulsed avalanche energy g 608 parameter maximum case-to-sink a maximum lead temperature for soldering purpose, 1/8" from case for 5 seconds junction and storage temperature range derate above 25 o c t c =25c 4.5 5 power dissipation b p d v 30 gate-source voltage 20 continuous drain current t c =25c i d a 51 pulsed drain current c 14 t c =100c v parameter drain-source voltage AOT20N25 250 units maximum junction-to-ambient a,d c/w 65 300 thermal characteristics www.freescale.net.cn 1/5 general description features
symbol min typ max units 250 300 bv dss / ? tj 0.25 v/ o c 1 10 i gss gate-body leakage current 100 n a v gs(th) gate threshold voltage 3.2 3.8 4.5 v r ds(on) 0.14 0.17 w g fs 16 s v sd 0.72 1 v i s maximum body-diode continuous current 20 a i sm 51 a c iss 1028 pf c oss 167 pf c rss 11 pf r g 1.9 3.9 5.9 w q g 20 25 nc q gs 5.7 nc q gd 8 nc t d(on) 27 ns t r 31 ns t d(off) 70 ns bv dss maximum body-diode pulsed current input capacitance output capacitance turn-on delaytime dynamic parameters turn-on rise time m a v ds =0v, v gs =30v v drain-source breakdown voltage i d =250 a, v gs =0v, t j =25c i d =250 a, v gs =0v, t j =150c i s =1a,v gs =0v v ds =40v, i d =10a forward transconductance zero gate voltage drain current id=250 a, vgs=0v turn-off delaytime v gs =10v, v ds =125v, i d =20a, r g =25 w gate resistance v gs =0v, v ds =0v, f=1mhz total gate charge v gs =10v, v ds =200v, i d =20a gate source charge gate drain charge switching parameters electrical characteristics (t j =25c unless otherwise noted) static parameters parameter conditions static drain-source on-resistance v gs =10v, i d =10a reverse transfer capacitance v gs =0v, v ds =25v, f=1mhz i dss zero gate voltage drain current v ds =250v, v gs =0v diode forward voltage v ds =5v, i d =250 m a v ds =200v, t j =125c t d(off) 70 ns t f 25 ns t rr 179 ns q rr 1.6 m c body diode reverse recovery charge i f =20a,di/dt=100a/ m s,v ds =100v turn-off delaytime r g =25 w turn-off fall time body diode reverse recovery time i f =20a,di/dt=100a/ m s,v ds =100v a. the value of r q ja is measured with the device in a still air environm ent with t a =25 c. b. the power dissipation p d is based on t j(max) =150 c, using junction-to-case thermal resistance, and i s more useful in setting the upper dissipation limit for cases where additional heatsi nking is used. c. repetitive rating, pulse width limited by juncti on temperature t j(max) =150 c, ratings are based on low frequency and duty cycl es to keep initial t j =25 c. d. the r q ja is the sum of the thermal impedance from junction t o case r q jc and case to ambient. e. the static characteristics in figures 1 to 6 are obtained using <300 m s pulses, duty cycle 0.5% max. f. these curves are based on the junction-to-case t hermal impedance which is measured with the device mounted to a large heatsink, assuming a maximum junction temperature of t j(max) =150 c. the soa curve provides a single pulse rating. g. l=60mh, i as =4.5a, v dd =150v, r g =25 ? , starting t j =25 c www.freescale.net.cn 2/5 AOT20N25 250v,20a n-channel mosfet
typical electrical and thermal characteristics 0 5 10 15 20 25 30 0 5 10 15 20 25 30 i d (a) v ds (volts) fig 1: on-region characteristics v gs =5.5v 6v 10v 6.5v 0.1 1 10 100 2 4 6 8 10 i d (a) v gs (volts) figure 2: transfer characteristics - 55 c v ds =40v 25 c 125 c 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0 5 10 15 20 25 r ds(on) ( w w w w ) i d (a) figure 3: on - resistance vs. drain current and gate v gs =10v 0 0.5 1 1.5 2 2.5 3 -100 -50 0 50 100 150 200 normalized on-resistance temperature (c) figure 4: on-resistance vs. junction temperature v gs =10v i d =10a 40 1e-04 1e-03 1e-02 1e-01 1e+00 1e+01 1e+02 0.2 0.4 0.6 0.8 1.0 i s (a) v sd (volts) figure 6: body-diode characteristics (note e) 25 c 125 c figure 3: on - resistance vs. drain current and gate voltage 0.8 0.9 1 1.1 1.2 -100 -50 0 50 100 150 200 bv dss (normalized) t j ( c) figure 5:break down vs. junction temparature www.freescale.net.cn 3/5 AOT20N25 250v,20a n-channel mosfet
typical electrical and thermal characteristics 0 3 6 9 12 15 0 5 10 15 20 25 30 35 v gs (volts) q g (nc) figure 7: gate-charge characteristics v ds =200v i d =20a 1 10 100 1000 10000 0.1 1 10 100 capacitance (pf) v ds (volts) figure 8: capacitance characteristics c iss c oss c rss 0.01 0.1 1 10 100 0.1 1 10 100 1000 i d (amps) v ds (volts) 10 m s 10ms 1ms dc r ds(on) limited t j(max) =150 c 100 m s 0 5 10 15 20 25 0 25 50 75 100 125 150 current rating i d (a) t case ( c) v ds (volts) figure 10: maximum forward biased safe operating area for AOT20N25 (note f) t case ( c) figure 9: current de-rating (note b) 0.001 0.01 0.1 1 10 1e-06 1e-05 0.0001 0.001 0.01 0.1 1 10 z q q q q jc normalized transient thermal resistance pulse width (s) figure 11: normalized maximum transient thermal imp edance for AOT20N25 (note f) d=t on /t t j,pk =t c +p dm .z q jc .r q jc r q jc =0.6 c/w in descending order d=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse single pulse t on t p d www.freescale.net.cn 4/5 AOT20N25 250v,20a n-channel mosfet
- + vdc ig vds dut - + vdc vgs vgs 10v qg qgs qgd charge gate charge test circuit & waveform - + vdc dut vdd vgs vds vgs rl rg vgs vds 10% 90% resistive switching test circuit & waveforms t t r d(on) t on t d(off) t f t off id + l vgs vds bv unclamped inductive switching (uis) test circuit & waveforms vds dss 2 e = 1/2 li ar ar vdd vgs vgs rg dut - + vdc vgs id vgs i ig vgs - + vdc dut l vgs vds isd isd diode recovery tes t circuit & waveforms vds - vds + i f ar di/dt i rm rr vdd vdd q = - idt t rr www.freescale.net.cn 5/5 AOT20N25 250v,20a n-channel mosfet
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