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Bulletin PD-20619 rev. B 02/02
70CRU02
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 = 28ns IF(AV) = 70A @TC = 145C VR = 200V
Description/ Applications The 70CRU02 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 = 145C TC = 25C TC = 100C Per Diode Per Diode Per Module
Max
200 35 300 67 - 55 to 175
Units
V A W C
Operating Junction and Storage Temperatures
Case Styles
70CRU02
Base Common Cathode
2
1
3 2
Anode
1
Anode
2
TO-218 www.irf.com
Common Cathode
1
70CRU02
Bulletin PD-20619 rev. B 02/02
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
200 V V V V A mA pF nH I R = 60A I F = 35A I F = 35A, TJ = 125C I F = 35A, TJ = 175C V R = VR Rated T J = 150C, VR = VR Rated V R = 200V Measured from A-lead to K-lead 5mm from package body
0.95 1.09 0.9 0.85 50 10 1.0 0.9 60 2 -
IR
Reverse Leakage Current
-
CT LS
Junction Capacitance Series Inductance
-
Dynamic Recovery Characteristics per Diode @ TJ = 25C (unless otherwise specified)
Parameters
trr Reverse Recovery Time
Min Typ Max Units Test Conditions
34 26 49 3.7 8.2 48.7 202 28 nC A ns TJ = 25C TJ = 125C TJ = 25C TJ = 125C TJ = 25C TJ = 125C TJ = 25C TJ = 125C IF = 35A VRR = 100V di/dt = 200A/s IF = 1A VR = 30V diF /dt = 200A/s
IRRM
Peak Recovery Current
-
Qrr
Reverse Recovery Charge
-
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 Leg
Min
-
Typ
0.8 0.2 5.5 0.2 -
Max
0.9 0.45 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
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70CRU02
Bulletin PD-20619 rev. B 02/02
1000
1000
T J = 175C
Reverse Current - I R (A)
100
125C
10 1
25C
Instantaneous Forward Current - I F (A)
100
0.1 0.01 0 50 100 150 200
Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage
1000
Junction Capacitance - C T (pF)
T = 175C J
T = 25C
J
10
T = 125C J T = 25C J
100
1 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4
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
1
Thermal Impedance Z thJC (C/W)
PDM
0.1
Single Pulse (Thermal Resistance)
Notes:
t1 t2 1. Duty factor D = t1/ t2 2. Peak Tj = Pdm x ZthJC + Tc
0.01 0.0001
0.001 0.01 t1, Rectangular Pulse Duration (Seconds)
0.1
1
Fig. 4 - Max. Thermal Impedance Z thJC Characteristics (Per Diode)
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3
70CRU02
Bulletin PD-20619 rev. B 02/02
180
Allowable Case Temperature (C)
50
Average Power Loss ( W )
170 160 150 140 130 120 Square wave (D = 0.50) 110 Rated Vr applied 100 90 see note (3) 80 0 10 20 30 40 50 60
Average Forward Current - I F(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current
40 30
RMS Limit
DC
20 10 0 0 10 20 30 40
D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 DC
50
60
Average Forward Current - I F(AV) (A) Fig. 6 - Forward Power Loss Characteristics
80 70 60 50
trr ( nC )
600
If = 35A Vrr = 100V
If = 35A Vrr = 100V
500
Tj = 125C
Qrr ( nC )
400
Tj = 125C
40 30 20
Tj = 25C
300
200
Tj = 25C
100
10 0 100
0 100
di F /dt (A/s ) Fig. 8 - Typical Stored Charge vs. di F /dt
1000
1000
di F /dt (A/s ) Fig. 7 - Typical Reverse Recovery 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
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70CRU02
Bulletin PD-20619 rev. B 02/02
3
IF
trr ta tb
4
VR = 200V
0
Q rr
2
0.01 L = 70H D.U.T. dif/dt ADJUST D G IRFP250 S
1. diF/dt - Rate of change of current through zero crossing 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
1
I RRM
0.5 I RRM di(rec)M/dt 0.75 I RRM
5
di f /dt
4. Qrr - Area under curve defined by t rr and IRRM
Q rr = t rr x I 2
RRM
5. di (rec) M / dt - Peak rate of change of current during t b portion of t rr
Fig. 9 - Reverse Recovery Parameter Test Circuit
Fig. 10 - Reverse Recovery Waveform and Definitions
Outline Table
Dimensions in inches (and milimetres)
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5
70CRU02
Bulletin PD-20619 rev. B 02/02
Marking Information
ASSEMBLY LOT CODE IR PART NUMBER
70CRU02
0J54 0047
INTERNATIONAL RECTIFIER LOGO
DATE CODE (YYWW) YY = YEAR WW = WEEK
Ordering Information Table
Device Code
70
1 1 2 3 4 5 -
C
2
R
3
U
4
02
5 (70 = 70A)
Current Rating Common Cathode TO-218 Ultrafast Recovery Voltage Rating
(02 = 200V)
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. 02/02
6
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