Bulletin PD-20566 rev. B 07/02 40L40CW 40L45CW SCHOTTKY RECTIFIER 2 x 20 Amps Description/ Features Major Ratings and Characteristics Characteristics 40L..CW Units IF(AV) Rectangular waveform 40 A 40 - 45 V IFSM @ tp = 5 µs sine 1240 A VF 0.42 V VRRM The 40L..CW center tap Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150° C junction temperature. Typical applications are in switching power supplies. 150° C TJ operation Center tap TO-247 package @ 20 Apk, TJ=125°C High frequency operation (per leg, Typical) TJ High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop - 55 to 150 °C Guard ring for enhanced ruggedness and long term reliability Case Styles 40L..CW Base Common Cathode 2 1 Anode 1 TO-247AC www.irf.com 3 2 Anode 2 Common Cathode 1 40L40CW, 40L45CW Bulletin PD-20566 rev. B 07/02 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 40L40CW 40L45CW 40 45 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current IFSM * See Fig. 5 40L..CW Units (Per Leg) 20 (Per Device) 40 A Max. Peak One Cycle Non-Repetitive 1240 A Surge Current (Per Leg) * See Fig. 7 350 EAS Non-Repetitive Avalanche Energy (Per Leg) 20 mJ IAR Repetitive Avalanche Current (Per Leg) 3 A Conditions 50% duty cycle @ TC = 122 °C, rectangular wave form Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied 5µs Sine or 3µs Rect. pulse TJ = 25 °C, IAS = 3 Amps, L = 4.4 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM IRM Forward Voltage Drop (Per Leg) * See Fig. 1 40L..CW Units (1) Reverse Leakage Current (Per Leg) * See Fig. 2 (1) Conditions Typ. 0.48 0.61 0.42 0.60 Max. 0.53 0.69 0.49 0.70 - 1.5 mA TJ = 25 °C 20 80 mA TJ = 100 °C TJ = TJ max. V V V V @ 20A @ 40A @ 20A @ 40A TJ = 25 °C TJ = 125 °C VR = rated VR VF(TO) Threshold Voltage 0.27 V rt Forward Slope Resistance 8.72 mΩ CT Max. Junction Capacitance (Per Leg) - 1500 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C LS Typical Series Inductance (Per Leg) 7.5 - nH Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change 10000 V/ µs (Rated VR) (1) Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 40L..CW Units TJ Max. Junction Temperature Range -55 to 150 Tstg Max. Storage Temperature Range -55 to 150 Conditions °C °C RthJC Max. Thermal Resistance Junction to Case (Per Leg) 1.6 °C/W DC operation RthJC Max. Thermal Resistance Junction to Case (Per Package) 0.8 °C/W DC operation RthCS Typical Thermal Resistance, Case to Heatsink 0.24 °C/W Mounting surface , smooth and greased wt Approximate Weight T Mounting Torque 6 (0.21) Min. Max. Case Style 2 6 (5) 12 (10) * See Fig. 4 g (oz.) Kg-cm Non-lubricated threads (Ibf-in) TO-247AC(TO-3P) JEDEC www.irf.com 40L40CW, 40L45CW Bulletin PD-20566 rev. B 07/02 10 0 0 1000 T J = 150 C Reve rse C urre nt - I R (m A) 10 0 125 C 100 C 10 75 C 1 50 C 0 .1 25 C 0 .0 1 0 .0 0 1 0 T J = 150 C 10 1 0 .4 0 .6 0.8 1 1 .2 15 20 25 30 35 40 45 1 00 0 0 T J = 25 C 0 .2 10 Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg) T J = 125 C 0 5 Re verse V olta g e - VR (V ) Junction C ap acita nce - C T (pF) In stan tane ous F orwa rd C urrent - I F (A) 100 1 .4 1 .6 T J = 25 C 10 0 0 1 00 1.8 0 10 Forw a rd V oltag e D rop - V FM (V ) 20 30 40 50 Reverse V oltag e - V R (V ) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) Th erm al Im pedan ce Z thJC ( C /W ) 10 1 D D D D D = = = = = 0.75 0.50 0.33 0.25 0.20 PD M t1 0 .1 Single Pulse (Therm a l Resistance) t2 N otes: 1. D uty fac tor D = t 1 / t 2 2. Peak T J = PD M x Z thJ C + T C 0 .01 0 .00 00 1 0 .0 00 1 0 .0 0 1 0.0 1 0 .1 1 10 1 00 t , Recta ng ular Pulse D ura tio n (Seco nds) 1 Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) www.irf.com 3 40L40CW, 40L45CW Bulletin PD-20566 rev. B 07/02 18 D D D D D 16 Averag e Pow er Loss - (W atts) Allo w a ble C a se Te m peratu re - ( C ) 150 140 DC 130 Sq ua re w a ve (D = 0.50) 80% Rate d V R a p p lie d 120 110 14 12 = = = = = 0.20 0.25 0.33 0.50 0.75 RM S Lim it 10 DC 8 6 4 2 se e no te (2) 0 100 0 5 10 15 20 25 0 30 5 10 15 20 25 30 A vera ge Forw a rd C urren t - I F(A V) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg) Fig. 6 - Forward Power Loss Characteristics (Per Leg) N on-Repetitive Surge C urrent - I FSM (A ) A vera g e F orw a rd C urren t - I F(AV ) (A ) (A ) 10000 A t A ny Rated Load C on dition A nd W ith Ra ted V RRM Ap plied Follow in g Surge 1000 100 10 100 1000 10000 Sq uare W a ve Pulse D uration - t p (m icrosec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) L IRFP460 D UT Rg = 25 ohm C UR RE N T M O N ITO R H IG H -SPE ED SW ITC H FREE-W HE EL D IO D E + V d = 25 V olt 40H FL40S02 Fig. 8 - Unclamped Inductive Test Circuit (2) 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 = 80% rated VR 4 www.irf.com 40L40CW, 40L45CW Bulletin PD-20566 rev. B 07/02 Outline Table 15 .90 (0 .626 ) 3. 65 (0 .14 4) 3. 55 (0 .13 9) DIA. 15 .30 (0 .602 ) 5. 30 (0 .20 9) 4.70 ( 0.185) 2.5 ( 0.098) Base Common Cathode 1.5 ( 0.059) 5. 70 (0 .22 5) 2 5.30 ( 0.208) 20 .30 (0 .800 ) 19 .70 (0 .775 ) 5.50 ( 0.217) 4. 50 (0 .17 7) 1 2 (2 PLCS.) 3 1 Anode 14. 80 ( 0.583) 14 .20 (0 .559 ) 1 3 2 Anode 2 Common Cathode 4. 30 (0 .17 0) 3. 70 (0 .14 5) 2. 20 (0 .08 7) 1. 40 (0 .05 6) 1. 00 (0 .03 9) 2. 40 (0 .09 5) MAX. MAX. 0.80 ( 0.032) 0. 40 (0 .21 3) 10. 94 ( 0.430) 10 .86 (0 .427 ) Conform to JEDEC outline TO-247AC (TO-3P) Dimensions in millimeters and (inches) 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. 07/02 www.irf.com 5