Bulletin PD-20724 rev. B 0/02 409DMQ... Series SCHOTTKY RECTIFIER 400 Amp TO-244AB isolated doubler Major Ratings and Characteristics Characteristics 409DMQ... Units I F(AV) Rectangular 400 A waveform V RRM 35 to 50 V I FSM @ tp = 5 µs sine 25,500 A V F @ 200Apk, T =25 C 0.72 V (per leg) T range - 55 to 75 C Description/ Features The 409DMQ Schottky rectifier doubler module series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 75 C junction temperature. Typical applications are in high current switching power supplies, plating power supplies, UPS systems, converters, free-wheeling diodes, welding, and reverse battery protection. 75 C T operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Modified EDEC Outline TO-244AB Isolated Dimensions in millimeters and (inches)
Bulletin PD-20724 rev. B 0/02 Voltage Ratings 2 Parameters 409DMQ35 409DMQ50 V R Max. DC Reverse Voltage V RWM Max. Working Peak Reverse Voltage Absolute Maximum Ratings 35 50 I F(AV) Max. Average Forward 400 A 50% duty cycle @ T C = 80 C, rectangular wave form Current ( Per Device ) I FSM Max. Peak One Cycle Non-Repetitive 20000 5µs Sine or 3µs Rect. pulse Following any rated A load condition and with Surge Current (Per Leg) 2300 0ms Sine or 6ms Rect. pulse rated V RRM applied E AS Non-Repetitive Avalanche Energy 5 m T = 25 C, I AS = Amps, L = 30 mh (Per Leg) I AR Repetitive Avalanche Current A Current decaying linearly to zero in µsec (Per Leg) Frequency limited by T max. V A =.5 x V R typical Electrical Specifications V FM Max. Forward Voltage Drop.03 V @ 200A (Per Leg) ().2 V @ 400A T = 25 C 0.7 V @ 200A 0.82 V @ 400A T = 25 C I RM Max. Reverse Leakage Current 6 ma T = 25 C (Per Leg) () 85 ma T = 25 C V R = rated V R C T Max. unction Capacitance (Per Leg) 6000 pf V R = 5V DC, (test signal range Khz to Mhz) 25 C L S Typical Series Inductance (Per Leg) 5.0 nh From top of terminal hole to mounting plane dv/dt Max. Voltage Rate of Change 00 V/ µs (Rated V R ) () Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications T Max. unction Temperature Range -55 to 75 C T stg Max. Storage Temperature Range -55 to 75 C R thc Max. Thermal Resistance unction 0.4 C/W DC operation to Case (Per Leg) R thc Max. Thermal Resistance unction 0.2 C/W DC operation to Case (Per Package) R thcs Typical Thermal Resistance, Case 0. C/W Mounting surface, smooth and greased to Heatsink wt Approximate Weight 79 (2.80) g (oz.) T Mounting Torque Base Min. 24 (20) Max. 35 (30) Mounting Torque Center Hole Typ. 3.5 (2) Terminal Torque Min. 35 (30) Max. 46 (40) Case Style Kg-cm (Ibf-in) TO - 244AB isolated doubler Modified EDEC
Bulletin PD-20724 rev. B 0/02 Instantaneous Forward Current - I F 0 0 T = 50 C T = 25 C T = 25 C Reverse Current - I R (ma) unction Capacitance - C T (pf) 0 0 0. 0.0 T = 75 C 50 C 25 C C 75 C 50 C 25 C 0.00 0 30 60 90 20 50 Reverse Voltage - V R Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage 00 0 T = 25 C 0 0.4 0.8.2.6 2 Forward Voltage Drop - V FM Fig. - Max. Forward Voltage Drop Characteristics 0 30 60 90 20 Reverse Voltage - V R Fig. 3 - Typical unction Capacitance Vs. Reverse Voltage Thermal Impedance ZthC ( C/W) 0. 0.0 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 Notes: Single Pulse. Duty factor D = t / t 2 (Thermal Resistance) 2. Peak T = P DMx Z thc+ TC 0.00 0.0000 0.000 0.00 0.0 0. 0 t, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance Z thc Characteristics P DM t t 2 3
Bulletin PD-20724 rev. B 0/02 Allowable Case Temperature - ( C) 80 60 40 20 DC 80 Square wave (D = 0.50) Rated V R applied 60 see note (2) 40 0 200 400 600 Average Forward Current - IF (AV) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current Average Power Loss - (Watts) 600 500 400 300 200 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 RMS Limit DC 0 0 200 300 400 500 600 Average Forward Current - IF (AV) Fig. 6 - Forward Power Loss Characteristics Non-Repetitive Surge Current - IFSM 000 At Any Rated Load Condition And With Rated V Applied Following Surge RRM 00 0 0 0 00 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Max. Non-Repetitive Surge Current L DUT IRFP460 HIGH-SPEED SWITCH Rg = 25 ohm FREE-WHEEL DIODE + Vd = 25 Volt CURRENT MONITOR 40HFL40S02 Fig. 8 - Unclamped Inductive Test Circuit (2) Formula used: T C = T - (Pd + Pd REV ) x R thc ; Pd = Forward Power Loss = I F(AV) x V FM @ (I F(AV) / D) (see Fig. 6); Pd REV = Inverse Power Loss = V R x I R ( - D); I R @ V R = 80% rated V R 4
Bulletin PD-20724 rev. B 0/02 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: (30) 252-705 TAC Fax: (30) 252-7309 Visit us at for sales contact information. 0/02 5