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absolute maximum ratings parameter units i d @ v gs = 12v, t c = 25c continuous drain current 34 i d @ v gs = 12v, t c = 100c continuous drain current 21 i dm pulsed drain current 136 p d @ t c = 25c max. power dissipation 150 w linear derating factor 1.2 w/c v gs gate-to-source voltage 20 v e as single pulse avalanche energy 500 mj i ar avalanche current 34 a e ar repetitive avalanche energy 15 mj dv/dt peak diode recovery dv/dt 5.5 v/ns t j operating junction -55 to 150 t stg storage temperature range lead temperature 300 (0.063 in. (1.6mm) from case for 10s) weight 9.3 (t ypical) g pre-irradiation international rectifier?s radhard tm hexfet ? technology provides high performance power mosfets for space applications. this technology has over a decade of proven performance and reliability in satellite applications. these devices have been characterized for both total dose and single event effects (see). the combination of low rdson and low gate charge reduces the power losses in switching applications such as dc to dc converters and motor control. these devices retain all of the well established advantages of mosfets such as voltage control, fast switching, ease of paralleling and temperature stability of electrical parameters. o c a radiation hardened power mosfet thru-hole (to-254aa) www.irf.com 1 IRHM7150 jansr2n7268 100v, n-channel ref: mil-prf-19500/603 rad hard ? hexfet ? technology product summary part number radiation level r ds(on) i d qpl part number IRHM7150 100k rads (si) 0.065 ? 34a jansr2n7268 irhm3150 300k rads (si) 0.065 ? 34a jansf2n7268 irhm4150 500k rads (si) 0.065 ? 34a jansg2n7268 irhm8150 1000k rads (si) 0.065 ? 34a jansh2n7268 features: single event effect (see) hardened low r ds(on) low total gate charge simple drive requirements ease of paralleling hermetically sealed ceramic eyelets light weight for footnotes refer to the last page to-254aa pd - 90675d
2 www.irf.com IRHM7150, jansr2n7268 pre- irradiation electrical characteristics @ tj = 25c (unless otherwise specified) parameter min typ max units t est conditions bv dss drain-to-source breakdown voltage 100 ? ? v v gs =0 v, i d = 1.0ma ? bv dss / ? t j temperature coefficient of breakdown ? 0.13 ? v/c reference to 25c, i d = 1.0ma voltage r ds(on) static drain-to-source ? ? 0.065 v gs = 12v, i d = 21a on-state resistance ? ? 0.076 ? v gs = 12v, i d = 34a v gs(th) gate threshold voltage 2.0 ? 4.0 v v ds = v gs , i d = 1.0ma g fs forward transconductance 8.0 ? ? s ( )v ds > 15v, i ds = 21a i dss zero gate voltage drain current ? ? 25 v ds = 80v,v gs =0v ? ? 250 v ds = 80v v gs = 0v, t j = 125c i gss gate-to-source leakage forward ? ? 100 v gs = 20v i gss gate-to-source leakage reverse ? ? -100 v gs = -20v q g total gate charge ? ? 160 v gs = 12v, i d = 34a q gs gate-to-source charge ? ? 35 nc v ds = 50v q gd gate-to-drain (?miller?) charge ? ? 65 t d (on) turn-on delay time ? ? 45 v dd = 50v, i d = 14a, t r rise time ? ? 190 v gs = 12v, r g = 2.35 ? t d (off) turn-off delay time ? ? 170 t f fall time ? ? 130 l s + l d total inductance ? 6.8 ? c iss input capacitance ? 4300 ? v gs = 0v, v ds = 25v c oss output capacitance ? 1200 ? p f f = 1.0mhz c rss reverse transfer capacitance ? 200 ? na ? nh ns a note: corresponding spice and saber models are available on the international rectifier website. for footnotes refer to the last page thermal resistance parameter min typ max units t est conditions r thjc junction-to-case ? ? 0.83 r thcs case-to-sink ? 0.21 ? r thja junction-to-ambient ? ? 48 t ypical socket mount c/w source-drain diode ratings and characteristics parameter min typ max units t est conditions i s continuous source current (body diode) ? ? 34 i sm pulse source current (body diode) ? ? 136 v sd diode forward voltage ? ? 1.4 v t j = 25c, i s = 34a, v gs = 0v t rr reverse recovery time ? ? 570 ns t j = 25c, i f = 34a, di/dt 100a/ s q rr reverse recovery charge ? ? 5.8 c v dd 50v t on forward turn-on time intrinsic turn-on time is negligible. turn-on speed is substantially controlled by l s + l d . a measured from drain lead (6mm/0.25in. from package) to source lead (6mm/0.25in. from package)
www.irf.com 3 pre-irradiation IRHM7150, jansr2n7268 table 1. electrical characteristics @ tj = 25c, post total dose irradiation parameter 100k rads(si) 1 300 - 1000k rads (si) 2 units test conditions min max min max bv dss drain-to-source breakdown voltage 100 ? 100 ? v v gs = 0v, i d = 1.0ma v gs(th) gate threshold voltage 2.0 4.0 1.25 4.5 v gs = v ds , i d = 1.0ma i gss gate-to-source leakage forward ? 100 ? 100 na v gs = 20v i gss gate-to-source leakage reverse ? -100 ? -100 v gs = -20 v i dss zero gate voltage drain current ? 25 ? 50 a v ds =80v, v gs =0v r ds(on) static drain-to-source ? 0.065 ? 0.09 ? v gs = 12v, i d =21a on-state resistance (to-3) r ds(on) static drain-to-source ? 0.065 ? 0.09 ? v gs = 12v, i d =21a on-state resistance (to-254aa) international rectifier radiation hardened mosfets are tested to verify their radiation hardness capability. the hardness assurance program at international rectifier is comprised of two radiation environments. every manufacturing lot is tested for total ionizing dose (per notes 5 and 6) using the to-3 package. both pre- and post-irradiation performance are tested and specified using the same drive circuitry and test conditions in order to provide a direct comparison. radiation characteristics 1. part number IRHM7150 (jansr2n7268) 2. part numbers irhm3150 (jansf2n7268), irhm4150 (jansg2n7268) and irhm8150 (jansh2n7268) fig a. single event effect, safe operating area v sd diode forward voltage ? 1.4 ? 1.4 v v gs = 0v, i s = 34a international rectifier radiation hardened mosfets have been characterized in heavy ion environment for single event effects (see). single event effects characterization is illustrated in fig. a and table 2. for footnotes refer to the last page 0 20 40 60 80 100 120 0-5-10-15-20-25 vgs vds cu br table 2. single event effect safe operating area ion let energy range v ds(v) (mev/(mg/cm 2 )) (mev) (m) @ v gs =0v @ v gs =-5v @ v gs =-10v @ v gs =-15v @ v gs =-20v cu 28 285 43 100 100 100 80 60 br 36.8 305 39 100 90 70 50 ?
4 www.irf.com IRHM7150, jansr2n7268 pre- irradiation post-irradiation fig 2. typical response of on-state resistance vs. total dose exposure fig 1. typical response of gate threshhold voltage vs. total dose exposure fig 3. typical response of transconductance vs. total dose exposure fig 4. typical response of drain to source breakdown vs. total dose exposure
www.irf.com 5 pre-irradiation IRHM7150, jansr2n7268 post-irradiation fig 6. typical on-state resistance vs. neutron fluence level fig 5. typical zero gate voltage drain current vs. total dose exposure fig 8b. v dss stress equals 80% of b vdss during radiation fig 7. typical transient response of rad hard hexfet during 1x10 12 rad (si)/sec exposure fig 8a. gate stress of v gss equals 12 volts during radiation
6 www.irf.com IRHM7150, jansr2n7268 pre- irradiation post-irradiation radiation characteristics fig 10. typical output characteristics post-irradiation 100k rads (si) fig 9. typical output characteristics pre-irradiation fig 11. typical output characteristics post-irradiation 300k rads (si) fig 12. typical output characteristics post-irradiation 1 mega rads(si) note: bias conditions during radiation: v gs = 12 vdc, v ds = 0 vdc
www.irf.com 7 pre-irradiation IRHM7150, jansr2n7268 radiation characteristics fig 15. typical output characteristics post-irradiation 300k rads (si) fig 16. typical output characteristics post-irradiation 1 mega rads(si) fig 13. typical output characteristics pre-irradiation fig 14. typical output characteristics post-irradiation 100k rads (si) note: bias conditions during radiation: v gs = 0 vdc, v ds = 80 vdc
8 www.irf.com IRHM7150, jansr2n7268 pre- irradiation fig 20. normalized on-resistance vs. temperature fig 18. typical output characteristics fig 17. typical output characteristics fig 19. typical transfer characteristics
www.irf.com 9 pre-irradiation IRHM7150, jansr2n7268 fig 24. maximum safe operating area fig 22. typical gate charge vs. gate-to-source voltage fig 21. typical capacitancevs. drain-to-source voltage fig 23. typical source-drain diode forward voltage
10 www.irf.com IRHM7150, jansr2n7268 pre- irradiation fig 26a. switching time test circuit v ds 9 0% 1 0% v gs t d(on) t r t d(off) t f fig 26b. switching time waveforms

1

0.1 %
v gs + - fig 27. maximum effective transient thermal impedance, junction-to-case fig 25. maximum drain current vs. case temperature
www.irf.com 11 pre-irradiation IRHM7150, jansr2n7268 q g q gs q gd v g charge d.u.t. v d s i d i g 3ma v gs .3 f 50k ? .2 f 12v current regulator same type as d.u.t. current sampling resistors + - fig 29b. gate charge test circuit fig 29a. basic gate charge waveform fig 28c. maximum avalanche energy vs. drain current fig 28b. unclamped inductive waveforms fig 28a. unclamped inductive test circuit t p v (br)dss i as r g i as 0.01 ? t p d.u.t l v ds + - v dd driver a 15v 20v v gs
12 www.irf.com IRHM7150, jansr2n7268 pre- irradiation pulse width 300 s; duty cycle 2% total dose irradiation with v gs bias. 12 volt v gs applied and v ds = 0 during irradiation per mil-std-750, method 1019, condition a. total dose irradiation with v ds bias. 80 volt v ds applied and v gs = 0 during irradiation per mll-std-750, method 1019, condition a. repetitive rating; pulse width limited by maximum junction temperature. v dd = 25v, starting t j = 25c, l= 0.86mh peak i l = 26a, v gs = 12v i sd 26a, di/dt 190a/ s, v dd 100v, t j 150c foot notes: caution beryllia warning per mil-prf-19500 packages containing beryllia shall not be ground, sandblasted, machined or have other operations performed on them which will produce beryllia or beryllium dust. furthermore, beryllium oxide packages shall not be placed in acids that will produce fumes containing beryllium. case outline and dimensions ? low-ohmic to-254aa 3.81 [.150] 0.12 [.005] 1.27 [.050] 1.02 [.040] 6.60 [.260] 6.32 [.249] c
3x 0.36 [.014] b a 1.14 [.045] 0.89 [.035] 2x 3.81 [.150] 20.32 [.800] 20.07 [.790] 13.84 [.545] 13.59 [.535] 3.78 [.149] 3.53 [.139] 17.40 [.685] 16.89 [.665] a 123 13.84 [.545] 13.59 [.535]
b 2. all dimensions are shown in millimeters [inches]. 1. dimensioning & tolerancing per asme y14.5m-1994. 4. conforms to jedec outline to-254aa. 3. controlling dimension: inch. pin assignments 1 = drain 2 = source 3 = gate ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 ir leominster : 205 crawford st., leominster, massachusetts 01453, usa tel: (978) 534-5776 tac fax: (310) 252-7903 visit us at www.irf.com for sales contact information . data and specifications subject to change without notice. 05/2006

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