copyright ? harris corporation 1995 5-21 semiconductor RURD410, rurd415, rurd420, RURD410s, rurd415s, rurd420s 4a, 100v - 200v ultrafast diodes features ? ultrafast with soft recovery . . . . . . . . . . . . . . . . . <30ns ? operating temperature . . . . . . . . . . . . . . . . . . . . +175 o c ? reverse voltage up to . . . . . . . . . . . . . . . . . . . . . . . 200v ? avalanche energy rated ? planar construction applications ? switching power supplies ? power switching circuits ? general purpose description RURD410, rurd415, rurd420, RURD410s, rurd415s, and rurd420s (ta49034) are ultrafast diodes with soft recovery characteristics (t rr < 30ns). they have low forward voltage drop and are ion-implanted epitaxial planar construction. these devices are intended for use as freewheeling/clamping diodes and recti?ers in a variety of switching power supplies and other power switching applications. their low stored charge and ultrafast soft recovery minimize ringing and electrical noise in many power switching circuits, reducing power loss in the switching transistors. april 1995 package jedec style to-251 jedec style to-252 symbol packaging availability part number package brand RURD410 to-251 rur410 rurd415 to-251 rur415 rurd420 to-251 rur420 RURD410s to-252 rur410 rurd415s to-252 rur415 rurd420s to-252 rur420 note: when ordering, use the entire part number. anode cathode cathode (flange) anode cathode cathode (flange) k a absolute maximum ratings t c = +25 o c, unless otherwise speci?ed RURD410 RURD410s rurd415 rurd415s rurd420 rurd420s units peak repetitive reverse voltage. . . . . . . . . . . . . . . . . .v rrm 100 150 200 v working peak reverse voltage . . . . . . . . . . . . . . . . . . v rwm 100 150 200 v dc blocking voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v r 100 150 200 v average rectified forward current . . . . . . . . . . . . . . . . i f(av) 444a (t c = +159 o c) repetitive peak surge current. . . . . . . . . . . . . . . . . . . . .i fsm 888a (square wave, 20khz) nonrepetitive peak surge current . . . . . . . . . . . . . . . . . .i fsm 40 40 40 a (halfwave, 1 phase, 60hz) maximum power dissipation . . . . . . . . . . . . . . . . . . . . . . . p d 30 30 30 w avalanche energy (l = 40mh) . . . . . . . . . . . . . . . . . . . . e avl 10 10 10 mj operating and storage temperature . . . . . . . . . . . . t stg , t j -65 to +175 -65 to +175 -65 to +175 o c file number 3614.3
5-22 speci?cations RURD410, rurd415, rurd420, RURD410s, rurd415s, rurd420s electrical speci?cations t c = +25 o c, unless otherwise speci?ed symbol test condition limits units RURD410 RURD410s rurd415 rurd415s rurd420 rurd420s min typ max min typ max min typ max v f i f = 4a, t c = +25 o c - - 1.0 - - 1.0 - - 1.0 v v f i f = 4a, t c = +150 o c - - 0.83 - - 0.83 - - 0.83 i r v r = 100v, t c = +25 o c v r = 150v, t c = +25 o c v r = 200v, t c = +25 o c - - - - - - 100 - - - - - - - - - 100 - - - - - - - - - 100 m a i r v r = 100v, t c = +150 o c v r = 150v, t c = +150 o c v r = 200v, t c = +150 o c - - - - - - 500 - - - - - - - - - 500 - - - - - - - - - 500 m a t rr i f = 1a, di f /dt = 100a/ m s - -30- -30- -30 ns i f = 4a, di f /dt = 100a/ m s - -35- -35- -35 t a i f = 4a, di f /dt = 100a/ m s - 11 - - 11 - - 11 - t b i f = 4a, di f /dt = 100a/ m s-9- -9- -9- q rr i f = 4a, di f /dt = 100a/ m s - 12 - - 12 - - 12 - nc c j v r = 10v, i f = 0a - 15 - - 15 - - 15 - pf r q jc --5--5--5 o c/w definitions v f = instantaneous forward voltage (pw = 300 m s, d = 2%). i r = instantaneous reverse current. t rr = reverse recovery time (see figure 2), summation of t a + t b . t a = time to reach peak reverse current (see figure 2). t b = time from peak i rm to projected zero crossing of i rm based on a straight line from peak i rm through 25% of i rm (see figure 2). r q jc = thermal resistance junction to case. e avl = controlled avalanche energy (see figures 9 and 10). pw = pulse width. d = duty cycle. figure 1. t rr test circuit figure 2. t rr waveforms and definitions c1 l loop dut q 3 r 3 q 4 q 2 r 1 r 2 -v 4 q 1 -v 2 0 0 +v 1 t 1 t 2 t 3 r 4 +v 3 v 1 amplitude controls i f v 2 amplitude controls di f /dt l 1 = self inductance of t 1 3 5t a(max) t 2 > t rr t 3 > 0 l 1 r 4 t a(min) 10 r 4 + l loop dt di f i f t rr t a t b 0 i rm 0.25 i rm v r v rm
5-23 RURD410, rurd415, rurd420, RURD410s, rurd415s, rurd420s typical performance curves figure 3. typical forward current vs forward voltage drop figure 4. typical reverse current vs reverse voltage figure 5. typical t rr , t a and t b curves vs forward current figure 6. typical t rr , t a and t b curves vs forward current figure 7. typical t rr , t a and t b curves vs forward current figure 8. current derating curve for all types v f , forward voltage (v) i f , forward current (a) 1 20 0.5 10 0 0.25 0.5 0.75 1 1.25 1.5 +100 o c +175 o c +25 o c v r , reverse voltage (v) 0 200 50 150 100 100 0.01 0.1 1 10 +25 o c +100 o c +175 o c 0.001 i r , reverse current ( m a) i f , forward current (a) 1 0 15 25 20 0.5 4 t rr t b 10 5 t a t c = +25 o c t, recovery times (ns) i f , forward current (a) t, recovery times (ns) 1 0 30 50 40 0.5 4 20 10 t rr t b t a t c = +100 o c i f , forward current (a) 1 0 60 100 80 0.5 4 40 20 t b t a t rr t c = +175 o c t, recovery times (ns) 5 1 0 155 160 170 150 175 165 2 3 4 dc t c , case temperature ( o c) i f(av) , average forward current (a) sq. wave
5-24 RURD410, rurd415, rurd420, RURD410s, rurd415s, rurd420s figure 9. avalanche energy test circuit figure 10. avalanche current and voltage waveforms 12v q 2 q 1 12v 130 w dut current sense + l r 1m w v dd 130 w i max = 1a l = 40mh r < 0.1 w e avl = 1/2li 2 [v avl /(v avl - v dd )] q 1 and q 2 are 1000v mosfets - v dd iv t 0 t 1 t 2 i l v avl t i l
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