08/29/02 ? reduced rfi and emi reduced snubbing extensive characterization of recovery parameters hermetic ceramic eyelets features description these ultrafast, soft recovery diodes are optimized to reduce losses and emi/rfi in high frequency power conditioning systems. an extensive characterization of the recovery behavior for different values of current, temperature and di/dt simplifies the calculations of losses in the operating conditions. the softness of the recovery eliminates the need for a snubber in most applications. these devices are ideally suited for power converters, motors drives and other applications where switching losses are significant portion of the total losses. ultrafast, soft recovery diode fred v r = 1200v i f(av) = 15a q rr = 370ns note: d.c. = 50% rect. wave 1/2 sine wave, 60 hz , p.w. = 8.33 ms HFA35HB120C www.irf.com 1 parameter max. units v r cathode to anode voltage ( per leg ) 1200 v i f(av) continuous forward current, t c =100 c 15 i fsm single pulse forward current, t c = 25c ( per leg ) 80 p d @ t c = 25c maximum power dissipation 63 w t j, t stg operating junction and storage temperature range -55 to +150 c a absolute maximum ratings case style to-254aa (isolated base) anode common anode cathode pd - 20371d
2 www.irf.com HFA35HB120C thermal - mechanical characteristics parameter typ. max. u nits r thjc junction-to-case, single leg conducting ? 2.0 wt weight 9.3 ? g c/w dynamic recovery characteristics (per leg) @ t j = 25c (unless otherwise specified) a/s nc a parameter min. typ. max. units test conditions t rr1 reverse recovery time ? 58 100 ns t j = 25c see fig. t rr2 ? 110 165 t j = 125c 5 i f = 7a i rrm1 peak recovery current ? 5.4 8.1 t j = 25c see fig. i rrm2 ? 7.2 10.8 t j = 125c 6 v r = 200v q rr1 reverse recovery charge ? 185 370 t j = 25c see fig. q rr2 ? 395 590 t j = 125c 7 di f /dt = 200a/s di (rec)m /dt1 peak rate of fall of recovery current ? 255 380 t j = 25c see fig. di (rec)m /dt2 during t b ? 160 240 t j = 125c 8 parameter min. typ. max. units test conditions v br cathode anode breakdown voltage 1200 ? ? v i r = 250a v fm max forward voltage ? ? 3.3 i f = 7.0a see fig. 1 ? ? 4.4 v i f = 15a ? ? 2.8 i f = 7.0a, t j = 125c i rm max reverse leakage current ? ? 10 a v r = v r rated see fig. 2 ? ? 1.0 ma v r = v r rated, t j = 125c c t junction capacitance, see fig. 3 ? 10 15 pf v r = 200v l s series inductance ? 8.7 ? nh measured from anode lead to cathode lead, 6mm ( 0.025 in) from package electrical characteristics (per leg) @ t j = 25c (unless otherwise specified)
www.irf.com 3 HFA35HB120C fig. 4 - maximum thermal impedance z thjc characteristics ( per leg ) fig. 2 - typical reverse current vs. reverse voltage ( per leg ) fig. 3 - typical junction capacitance vs. reverse voltage ( per leg ) fig. 1 - maximum forward voltage drop vs. instantaneous forward current ( per leg ) 0.001 0.01 0.1 1 10 100 1000 0 300 600 900 1200 r r reverse volta g e - v (v) reverse current - i (a) t = 125c j t = 25c j t = 150c j 1 10 100 1 10 100 1000 reverse volta g e - v ( v ) r t junction capacitance - c (pf) a t = 25c j 0.01 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 1 notes: 1. duty factor d = t / t 2. peak t = p x z + t 1 2 j dm thjc c p t t dm 1 2 t , rectangular pulse duration (sec) thermal response (z ) 1 thjc 0.01 0.02 0.05 0.10 0.20 d = 0.50 single pulse (thermal response) 1 10 100 1.0 3.0 5.0 7.0 fm f instantaneous forward current - i (a) forward volta g e dro p - v ( v ) t = 150c t = 125c t = 25c j j j
4 www.irf.com HFA35HB120C fig. 7 - typical stored charge vs. di f /dt fig. 8 - typical di (rec)m /dt vs. di f /dt fig. 5 - typical reverse recovery vs. di f /dt fig. 6 - typical recovery current vs. di f /dt 0 30 60 90 120 150 100 1000 trr - (ns) f di /dt - ( a/ s ) i = 14a i = 7a i = 3.5a f f f v = 200v t = 125c t = 25c r j j 1 10 100 100 1000 f di /dt - ( a/ s ) rrm i - (a) i = 14a i = 7a i = 3.5a f f f v = 200v t = 125c t = 25c r j j 10 100 1000 100 1000 f di /dt - ( a/ s ) rr q - (nc) i = 14a i = 7a i = 3.5a f f f v = 200v t = 125c t = 25c r j j 10 100 1000 10000 100 1000 f di /dt - ( a/ s ) di(rec)m/dt - (a/s) v = 200v t = 125c t = 25c r j j i = 7a f i = 14a f i = 3.5a f qrr- (nc)
www.irf.com 5 HFA35HB120C 4. q rr - area under curve defined by t rr and i rrm t rr x i rrm q rr = 2 5. di (rec)m /dt - peak rate of change of current during t b portion of t rr fig. 10 - reverse recovery waveform and definitions fig. 9 - reverse recovery parameter test circuit t a t b t rr q rr i f i rrm i rrm 0.5 di(rec)m/dt 0.75 i rrm 5 4 3 2 0 1 di /dt f 1. di f /dt - rate of change of current through zero crossing 2. i rrm - peak reverse recovery current 3. trr - reverse recovery time measured from zero crossing point of negative going i f to point where a line passing through 0.75 i rrm and 0.50 i rrm extrapolated to zero current reverse recovery circuit irfp250 d.u.t. l = 70h v = 200v r 0.01 ? g d s dif/dt adjust ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 tac fax: (310) 252-7903 visit us at www.irf.com for sales contact information . data and specifications subject to change without notice. 08/02 case outline and dimensions ? to-254aa 6.60 [.260] 6.32 [.249] 1.27 [.050] 1.02 [.040] 0.12 [.005] 13.84 [.545] 13.59 [.535] 13.84 [.545] 13.59 [.535] 3.81 [.150] 2x 17.40 [.685] 16.89 [.665] a 1.14 [.045] 0.89 [.035] 0.36 [.014] b a 3x b 20.32 [.800] 20.07 [.790] 3.78 [.149] 3.53 [.139] 123 pin ass ignments 17.40 [.685] 16.89 [.665] 3.81 [.150] 0.84 [.033] max. c 1 = drain pin as s ignme nt s 1 = anode 1 2 = common cathode 3 = anode 2 2x not es : 1. dimens ioning & t ole rancing per as me y14.5m-1994 . 2. all dimens ions are s hown in millimet ers [inches ] . 3. cont rol l ing dime ns ion: inch. 4. conforms to jedec outline to-254aa.
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