PD -2.459 rev. B 01/99 HFA70NC60CSM TM HEXFRED Ultrafast, Soft Recovery Diode VR = 600V VF(typ.) = 1.2V Features • Reduced RFI and EMI • Reduced Snubbing • Extensive Characterization of Recovery Parameters IF(AV) = 70A Qrr (typ.) = 210nC IRRM(typ.) = 6A trr(typ.) = 30ns di(rec)M/dt (typ.) = 180A/µs Description TM HEXFRED 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. SM D-61-8 Absolute Maximum Ratings (per Leg) Parameter VR IF @ TC = 25°C IF @ TC = 100°C IFSM EAS PD @ TC = 25°C PD @ TC = 100°C TJ TSTG Cathode-to-Anode Voltage Continuous Forward Current Continuous Forward Current Single Pulse Forward Current Non-Repetitive Avalanche Energy Maximum Power Dissipation Maximum Power Dissipation Operating Junction and Storage Temperature Range Soldering Temperature, for 10 sec. Max. Units 600 56 27 200 220 150 59 V A µJ W -55 to +150 °C 300 (0.063 in. (1.6mm) from case) Thermal - Mechanical Characteristics Parameter RthJC Wt Junction-to-Case, Single Leg Conducting Junction-to-Case, Both Legs Conducting Weight Min. Typ. Max. Units –––– –––– –––– –––– –––– 4.3 (0.15) 0.85 0.42 –––– °C/W K/W g (oz) Note: Limited by junction temperature L = 100µH, duty cycle limited by max TJ 125°C 1 HFA70NC60CSM PD-2.459 rev. B 01/99 Electrical Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified) Parameter V BR V FM Cathode Anode Breakdown Voltage Max Forward Voltage IRM Max Reverse Leakage Current CT LS Junction Capacitance Series Inductance Min. Typ. Max. Units 600 ––– ––– 1.3 ––– 1.5 ––– 1.2 ––– 2.0 ––– 0.50 ––– 68 ––– 5.5 ––– 1.5 1.7 1.4 10 2.0 100 ––– V V µA mA pF nH Test Conditions IR = 100µA IF = 35A IF = 70A See Fig. 1 IF = 35A, TJ = 125°C VR = VR Rated See Fig. 2 TJ = 125°C, VR = 480V VR = 200V See Fig. 3 Lead to lead 5mm from package body Dynamic Recovery Characteristics (per Leg) @ TJ = 25°C (unless otherwise specified) Parameter t rr trr1 trr2 IRRM1 IRRM2 Qrr1 Qrr2 di(rec)M/dt1 di(rec)M/dt2 Reverse Recovery Time Peak Recovery Current Reverse Recovery Charge Peak Rate of Fall of Recovery Current During tb Min. Typ. Max. Units ––– ––– ––– ––– ––– ––– ––– ––– ––– 30 ––– 70 110 ns 115 180 6.0 11 A 9.0 16 210 580 nC 520 1400 280 ––– A/µs 180 ––– Test Conditions IF = 1.0A, dif/dt = 200A/µs, VR = 30V TJ = 25°C See Fig. TJ = 125°C IF = 35A 5 TJ = 25°C See Fig. TJ = 125°C VR = 200V 6 TJ = 25°C See Fig. 7 TJ = 125°C dif/dt = 200A/µs TJ = 25°C See Fig. TJ = 125°C 8 Outline D61- 8-SM Dimensions in millimeters and (inches) 2 HFA70NC60CSM PD-2.459 rev. B 01/99 10000 R e ve rse C u rre n t - I R (µ A ) 100 TJ = 150°C 1000 100 TJ = 125°C 10 1 0.1 TJ = 25°C 0.01 TJ = 150°C 0 TJ = 125°C 10 1000 1 0.8 1.2 1.6 2.0 2.4 400 600 Fig. 2 - Typical Reverse Current vs. Reverse Voltage, (per Leg) TJ = 25°C 0.4 200 R e ve rse V o lta g e - V R (V ) Ju n ctio n C a p a cita n ce - C T (p F ) In sta n ta n e o u s F o rw a rd C u rre n t - I F (A ) 1000 2.8 3.2 F o rw a rd V o lta g e D ro p - V FM (V ) Fig. 1 - Maximum Forward Voltage Drop vs. Instantaneous Forward Current, (per Leg) A TJ = 25°C 100 10 1 10 100 1000 R e ve rse V o lta g e - V R (V ) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage, (per Leg) T h e rm a l Im p e d a n c e - Z th J C (K /W ) 1 D = 0.50 D = 0.33 D = 0.25 D = 0.1 7 PD M D = 0.08 t 0.1 S in g le P u lse (Th e rm a l R e s is ta n ce ) 1 t2 N o te s: 1 . D u ty fa cto r D = t 1 /t 2 2 . P e a k TJ = P D M x Z th JC + TC 0.01 0.0001 0.001 0.01 0.1 1 10 100 t 1 , R e cta n g u la r P u lse D u ra tio n (S e co n d s) Fig. 4 - Maximum Thermal Impedance Zthjc Characteristics, (per Leg) 3 HFA70NC60CSM PD-2.459 rev. B 01/99 150 40 VR = 2 0 0 V T J = 1 2 5 °C T J = 2 5 °C VR = 2 0 0 V T J = 1 2 5 °C T J = 2 5 °C 30 I F = 70A I F = 35A 90 t rr - (n s) t rr - (n s) 120 I F = 15A I F = 70 A 20 I F = 35A I F = 15A 60 10 30 100 d i f /d t - (A /µ s) 0 100 1000 d i f /d t - (A /µ s) 1000 Fig. 6 - Typical Recovery Current vs. dif/dt, (per Leg) Fig. 5 - Typical Reverse Recovery vs. dif/dt, (per Leg) 10000 1600 VR = 2 0 0 V T J = 1 2 5 °C T J = 2 5 °C VR = 2 0 0 V T J = 1 2 5 °C T J = 2 5 °C d i(re c)M /d t - (A /µ s) 1200 Q R R - (n C ) I F = 70A I F = 35A 800 I F = 15A I F = 15A 1000 I F = 35A I F = 70A 100 400 0 100 d i f /d t - (A /µ s) 1000 Fig. 7 - Typical Stored Charge vs. dif/dt, (per Leg) 4 10 100 1000 d i f /d t - (A /µ s) Fig. 8 - Typical di(rec)M/dt vs. dif/dt, (per Leg) HFA70NC60CSM PD-2.459 rev. B 01/99 3 t rr IF tb ta 0 R E V E R S E R E C O V E R Y C IR C U IT Q rr V R = 2 00 V 2 I RRM 4 0.5 I R R M di(rec)M /dt 0.01 Ω L = 70µH 1 D .U .T. d if/d t A D JU S T IR F P 2 50 4. Qrr - Area under curve defined by trr and IRRM trr X IRRM Qrr = 2 2. IRRM - Peak reverse recovery current 3. trr - Reverse recovery time measured from zero crossing point of negative going IF to point where a line passing through 0.75 IRRM and 0.50 IRRM extrapolated to zero current S Fig. 9 - Reverse Recovery Parameter Test Circuit 5. di(rec)M/dt - Peak rate of change of current during tb portion of trr Fig. 10 - Reverse Recovery Waveform and Definitions I L(PK ) L = 1 00 µ H H IG H -S P E E D S W IT C H DUT R g = 2 5 o hm CURRENT M O N IT O R di f /dt 1. dif/dt - Rate of change of current through zero crossing D G 5 0.75 I R R M F R E E -W H E E L D IO D E + DECAY T IM E V d = 5 0V V (AV A L) V R (R AT E D ) Fig. 11 - Avalanche Test Circuit and Waveforms WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 U.S.A. Tel: (310) 322 3331. Fax: (310) 322 3332. EUROPEAN HEADQUARTERS: Hurst Green, Oxted, Surrey RH8 9BB, U.K. Tel: ++ 44 1883 732020. Fax: ++ 44 1883 733408. 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