AO4494 30v n-channel mosfet general description product summary v ds (v) = 30v i d = 18a (v gs = 10v) r ds(on) < 6.5m w (v gs = 10v) (v gs = 4.5v) 100% uis tested 100% r g tested symbol v ds v gs i dm i ar e ar t j , t stg symbol typ max 28 40 59 75 r q jl 16 24 w 3.1 maximum junction-to-lead steady-state c/w steady-state c/w maximum junction-to-ambient a d units maximum junction-to-ambient a t c =25c t c =70c power dissipation b p d a i d 18 14 mj avalanche current c 51 a maximum units parameter absolute maximum ratings t a =25c unless otherwise noted the AO4494 combines advanced trench mosfet technology with a low resistance package to provide extremely low r ds(on) . this device is for pwm applications. v v 20 gate-source voltage drain-source voltage 30 t 10s c/w parameter r q ja junction and storage temperature range -55 to 150 c thermal characteristics r ds(on) < 9.5m w t c =25c 2 t c =70c 32 130 pulsed drain current c continuous drain current repetitive avalanche energy l=0.1mh c soic-8 top view bottom view d d d d s s s g g d s alpha & omega semiconductor, ltd. w ww.aosmd.com nt?qtu5[pg ?pqls? w w w . w h x p c b . c o m
AO4494 symbol min typ max units bv dss 30 v v ds =30v, v gs =0v 1 t j =125c 5 i gss 100 na v gs(th) gate threshold voltage 1.5 2 2.5 v i d(on) 130 a 5.4 6.5 t j =125c 8.4 10.1 7.5 9.5 m w g fs 70 s v sd 0.75 1 v i s 3 a c iss 1270 1590 1900 pf c oss 170 240 310 pf c rss 87 145 200 pf r g 0.8 1.5 2.3 w q g (10v) 24 30 36 nc q g (4.5v) 12 15 18 nc q gs 4.2 5.2 6.2 nc q gd 4.7 7.8 11 nc t d(on) 6.7 ns t r 3.5 ns t d(off) 22.5 ns t f 4 ns t rr 22 28 34 ns q rr 19 24 30 nc components in life support devices or systems are not authorized. aos does not assume any liability arising out of such applications or uses of its products. aos reserves the right to improve product design, functions and reliability without notice. body diode reverse recovery charge i f =18a, di/dt=500a/ m s maximum body-diode continuous current input capacitance output capacitance turn-on delaytime dynamic parameters turn-on rise time turn-off delaytime v gs =10v, v ds =15v, r l =0.83 w , r gen =3 w gate resistance v gs =0v, v ds =0v, f=1mhz turn-off fall time total gate charge v gs =10v, v ds =15v, i d =18a gate source charge gate drain charge total gate charge m w i s =1a,v gs =0v v ds =5v, i d =18a v gs =4.5v, i d =16a forward transconductance diode forward voltage r ds(on) static drain-source on-resistance i dss m a v ds =v gs i d =250 m a v ds =0v, v gs = 20v zero gate voltage drain current gate-body leakage current electrical characteristics (t j =25c unless otherwise noted) static parameters parameter conditions body diode reverse recovery time drain-source breakdown voltage on state drain current i d =250 m a, v gs =0v v gs =10v, v ds =5v v gs =10v, i d =18a reverse transfer capacitance i f =18a, di/dt=500a/ m s v gs =0v, v ds =15v, f=1mhz switching parameters a. the value of r q j a is measured with the device mounted on 1in 2 fr-4 board with 2oz. copper, in a still air environment with t a =25c. the p ower dissipation p dsm is based on r q j a and the maximum allowed junction temperature of 150c. the value in any given application depends o n the user's specific board design. b. the power dissipation p d is based on t j(max) =150c, using junction-to-case thermal resistance, and is more useful in setting the upper d issipation limit for cases where additional heatsinking is used. c. repetitive rating, pulse width limited by junction temperature t j(max) =150c. ratings are based on low frequency and duty cycles to keep initial t j =25c. d . the r q j a is the sum of the thermal impedence from junction to case r q j c 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 thermal impedence which is measured with the device mounted to a large heatsink, assuming a maximum junction temperature of t j(max) =150c. the soa curve provides a single pulse ratin g. r ev1: nov. 2010 alpha & omega semiconductor, ltd. www.aosmd.com nt?qtu5[pg ?pqls? w w w . w h x p c b . c o m
AO4494 typical electrical and thermal characteristics 17 5 2 10 0 18 40 0 20 40 60 80 100 0 1 2 3 4 5 6 v gs (volts) figure 2: transfer characteristics (note e) i d (a) 2 4 6 8 10 12 0 5 10 15 20 25 30 i d (a) figure 3: on-resistance vs. drain current and gate voltage (note e) r ds(on) (m w w w w ) 1.0e-05 1.0e-04 1.0e-03 1.0e-02 1.0e-01 1.0e+00 1.0e+01 1.0e+02 0.0 0.2 0.4 0.6 0.8 1.0 1.2 v sd (volts) figure 6: body-diode characteristics (note e) i s (a) 25c 125c 0.8 1 1.2 1.4 1.6 1.8 0 25 50 75 100 125 150 175 temperature (c) figure 4: on-resistance vs. junction temperature (note e) normalized on-resistance v gs =4.5v i d =16a v gs =10v i d =18a 0 5 10 15 20 25 2 4 6 8 10 v gs (volts) figure 5: on-resistance vs. gate-source voltage (note e) r ds(on) (m w w w w ) 25c 125c v ds =5v v gs =4.5v v gs =10v i d =18a 25c 125c 0 20 40 60 80 100 120 140 0 1 2 3 4 5 v ds (volts) fig 1: on-region characteristics (note e) i d (a) v gs =3v 3.5v 10v 4v 4.5v 7v 5v 6v alpha & omega semiconductor, ltd. www.aosmd.com nt?qtu5[pg ?pqls? w w w . w h x p c b . c o m
AO4494 typical electrical and thermal characteristics 0 2 4 6 8 10 0 5 10 15 20 25 30 q g (nc) figure 7: gate-charge characteristics v gs (volts) 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 0 5 10 15 20 25 30 v ds (volts) figure 8: capacitance characteristics capacitance (pf) c iss c oss c rss v ds =15v i d =18a 10 m s 0.0 0.1 1.0 10.0 100.0 1000.0 0.1 1 10 100 v ds (volts) i d (amps) figure 9: maximum forward biased safe operating area (note f ) 10 m s 10s 1ms dc r ds(on) limited t j(max) =150c t a =25c 100 m s 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 0.000001 0.00001 0.0001 0.001 time in avalanche, t a (s) figure 12: single pulse avalanche capability (note c) i d (a), peak avalanche current t a =25c t a =150c t a =100c t a =125c 1 10 100 1000 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 pulse width (s) figure 15: single pulse power rating junction-to-ambient (note f) power (w) t a =25c 10ms 100ms alpha & omega semiconductor, ltd. www.aosmd.com nt?qtu5[pg ?pqls? w w w . w h x p c b . c o m
AO4494 typical electrical and thermal characteristics 40 0.001 0.01 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 pulse width (s) figure 16: normalized maximum transient thermal impedance (note f) z q q q q ja normalized transient thermal resistance single pulse d=t on /t t j,pk =t a +p dm .z q ja .r q ja t on t p d in descending order d=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse r q ja =40c/w alpha & omega semiconductor, ltd. w ww.aosmd.com nt?qtu5[pg ?pqls? w w w . w h x p c b . c o m
AO4494 - + 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 vdd vgs id vgs rg dut - + vdc l vgs vds id vgs bv i unclamped inductive switching (uis) test circuit & waveforms ig vgs - + vdc dut l vds vgs vds isd isd diode recovery test circuit & waveforms vds - vds + i f a r dss 2 e = 1/2 li di/dt i rm r r vdd v dd q = - idt ar a r t rr alpha & omega semiconductor, ltd. w ww.aosmd.com nt?qtu5[pg ?pqls? w w w . w h x p c b . c o m
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