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| Bulletin PD-20637 12/01 70CRU04 Ultrafast Rectifier Features * * * * * * * Two Common-Cathode Diodes Ultrafast Reverse Recovery Ultrasoft Reverse Recovery Current Shape Low Forward Voltage Drop Low Leakage Current Optimized for Power Conversion: Welding and Industrial SMPS Applications Up to 175C Operating Junction Temperature trr = 38ns IF(AV) = 70Amp @TC = 116C VR = 400V Description/ Applications The 70CRU04 integrates two state-of-the-art International Rectifier's Ultrafast recovery rectifiers in the commoncathode configuration. The planar structure of the diodes, and the platinum doping life-time control, provide a Ultrasoft recovery current shape, together with the best overall performance, ruggedness and reliability characteristics. These devices are thus intended for high frequency applications in which the switching energy is designed not to be predominant portion of the total energy, such as in the output rectification stage of Welding machines, SMPS, DCDC converters. Their extremely optimized stored charge and low recovery current reduce both over-dissipation in the switching elements (and snubbers) and EMI/RFI. Absolute Maximum Ratings Parameters VR IF(AV) IFSM PD TJ, TSTG Cathode to Anode Voltage Continuous Forward Current Single Pulse Forward Current Maximum Power Dissipation TC = 116C TC = 25C TC = 100C Per Diode Per Diode Per Module Max 400 35 300 47 - 55 to 175 Units V A W C Operating Junction and Storage Temperatures Case Styles 70CRU04 Base Common Cathode 2 1 3 2 Anode 1 Anode 2 TO-218 www.irf.com Common Cathode 1 70CRU04 Bulletin PD-20637 12/01 Electrical Characteristics per Diode @ TJ = 25C (unless otherwise specified) Parameters VBR, Vr VF Breakdown Voltage, Blocking Voltage Forward Voltage Min Typ Max Units Test Conditions 400 V V V V A mA pF IR = 100A IF = 35A IF = 35A, TJ = 125C IF = 35A, TJ = 175C VR = VR Rated TJ = 150C, VR = VR Rated VR = 400V 1.11 1.32 0.98 1.14 0.92 1.05 70 100 2 - IR Reverse Leakage Current - CT Junction Capacitance - Dynamic Recovery Characteristics per Diode @ TJ = 25C (unless otherwise specified) Parameters trr Reverse Recovery Time Min Typ Max Units Test Conditions 32 38 ns TJ = 25C IF = 1A VR = 30V diF /dt = 200A/s trr Reverse Recovery Time - 72 130 7.7 16.5 0.28 1.08 - ns TJ = 25C TJ = 125C IF = 35A VR = 200V diF /dt = 200A/s IRRM Peak Recovery Current - A TJ = 25C TJ = 125C Qrr Reverse Recovery Charge - C TJ = 25C TJ = 125C Thermal - Mechanical Characteristics Parameters RthJC RthJC RthCS (1) Wt Thermal Resistance, Junction to Case Thermal Resistance, Junction to Case Thermal Resistance, Case to Heatsink Weight Per Diode Both Diodes Min - Typ 0.8 0.4 0.2 4 0.13 - Max 1.6 0.8 2.4 20 Units K/W g (oz) N*m lbf.in T Mounting Torque 1.2 10 !(1) Mounting Surface, Flat, Smooth and Greased 2 www.irf.com 70CRU04 Bulletin PD-20637 12/01 1000 Reverse Current - I R (A) 1000 Tj = 175C 100 10 150C 125C 1 0.1 0.01 25C Instantaneous Forward Current - I F (A) 100 0.001 50 Tj = 175C Tj = 125C Tj = 25C 100 150 200 250 300 350 400 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage 1000 Junction Capacitance - C T (pF) Tj = 25C 10 100 1 0 0.5 1 1.5 2 2.5 3 Forward Voltage Drop - VFM (V) Fig. 1 - Typical Forward Voltage Drop Characteristics (Per Diode) 10 1 10 100 1000 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage 10 Thermal Impedance Z thJC (C/W) 1 PDM t1 0.1 Single Pulse (Thermal Resistance) t2 Notes: 1. Duty factor D = t1/ t2 2. Peak Tj = Pdm x ZthJC + Tc 0.01 0.0001 0.001 0.01 0.1 t1, Rectangular Pulse Duration (Seconds) 1 10 Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Diode) www.irf.com 3 70CRU04 Bulletin PD-20637 12/01 180 Allowable Case Temperature (C) Average Power Loss ( Watts ) 40 35 30 25 20 15 10 5 0 0 Average Forward Current - I F(AV) (A) 170 160 150 140 130 Square wave (D = 0.50) RMS Limit DC 120 Rated Vr applied 110 see note (3) 100 0 5 10 15 20 25 30 35 40 Average Forward Current - I F(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current D = 0.01 D = 0.02 D = 0.05 D = 0.10 D = 0.20 D = 0.50 DC 5 10 15 20 25 30 35 Fig. 6 - Forward Power Loss Characteristics 150 140 130 120 trr ( ns ) 2500 If = 35A Vrr = 200V If = 35A Vrr = 200V 2000 Tj = 125C Qrr ( nC ) 110 100 90 80 70 60 50 100 1000 Tj = 25C 1500 Tj = 125C 1000 Tj = 25C 500 0 100 1000 di F /dt (A/s ) Fig. 7 - Typical Reverse Recovery vs. di F /dt di F /dt (A/s ) Fig. 8 - Typical Stored Charge vs. di F /dt (3) Formula used: TC = TJ - (Pd + PdREV) x RthJC ; Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6); PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = rated VR 4 www.irf.com 70CRU04 Bulletin PD-20637 12/01 Outline Table Dimensions in inches (and milimetres) Marking Information ASSEMBLY LOT CODE IR PART NUMBER 70CRU04 1043 0136 INTERNATIONAL RECTIFIER LOGO DATE CODE (YYWW) YY = YEAR WW = WEEK www.irf.com 5 70CRU04 Bulletin PD-20637 12/01 Ordering Information Table Device Code 70 1 1 2 3 4 5 - C 2 R 3 U 4 04 5 (70 = 70A) Current Rating Common Cathode TO-218 Ultrafast Recovery Voltage Rating (04 = 400V) Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level. Qualification Standards can be found on IR's Web site. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7309 Visit us at www.irf.com for sales contact information. 12/01 6 www.irf.com |
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