81CNQ045

81CNQ IRF | Alldatasheet

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81CNQ... SERIES PD-2.237 rev. B 01/99 www.irf.com 1 IF(AV) Rectangular 80 A waveform VRRM range 35 to 45 V IFSM @ tp = 5 µs sine 4600 A V F @ 40 Apk, TJ = 125°C 0.54 V (per leg) TJ range - 55 to 175 °C Characteristics 81CNQ... Units Major Ratings and Characteristics Case Styles D61-8 D61-8-SM D61-8-SL The 81CNQ center tap Schottky rectifier module series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 175 °C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175 °C T J operation Center tap module 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 Low profile, small footprint, high current package Description/Features

81CNQ... Series PD-2.237 rev. B 01/99 www.irf.com TJ Max. Junction Temperature Range -55 to 175 °C Tstg Max. Storage Temperature Range -55 to 175 °C R thJC Max. Thermal Resistance Junction 0.85 °C/W DC operation * See Fig. 4 to Case (Per Leg) R thJC Max. Thermal Resistance Junction 0.42 °C/W DC operation to Case (Per Package) RthCS Typical Thermal Resistance, Case 0.30 °C/W Mounting surface , smooth and greased to Heatsink (D61-8 Only) wt Approximate Weight 7.8 (0.28) g (oz.) T Mounting Torque Min. 40 (35) (D61-8 Only) Max. 58 (50) Thermal-Mechanical Specifications Kg-cm (Ibf-in) VFM Max. Forward Voltage Drop 0.60 V @ 40A (Per Leg) * See Fig. 1 (1) 0.74 V @ 80A

0.54 V @ 40A

0.66 V @ 80A

IRM Max. Reverse Leakage Current 5 mA T J = 25 °C (Per Leg) * See Fig. 2 (1) 45 mA T J = 125 °C CT Max. Junction Capacitance (Per Leg)2600 pF V R = 5VDC , (test signal range 100Khz to 1Mhz) 25°C LS Typical Series Inductance (Per Leg) 5.5 nH Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change 10,000 V/ µs (Rated VR) TJ = 25 °C TJ = 125 °C Electrical Specifications (1) Pulse Width < 300µs, Duty Cycle <2% VR = rated VR Absolute Maximum Ratings Following any rated load condition and with rated VRRM applied Parameters 81CNQ Units Conditions IF(AV) Max. Average Forward Current 80 A 50% duty cycle @ T C = 141 °C, rectangular wave form * See Fig. 5 IFSM Max. Peak One Cycle Non-Repetitive4600 5µs Sine or 3µs Rect. pulse Surge Current (Per Leg) * See Fig. 7 790 10ms Sine or 6ms Rect. pulse EAS Non-Repetitive Avalanche Energy 54 mJ T J = 25 °C, IAS = 8 Amps, L = 1.7 mH (Per Leg) IAR Repetitive Avalanche Current 8 A Current decaying linearly to zero in 1 µsec (Per Leg) Frequency limited by T J max. VA = 1.5 x VR typical A Part number 81CNQ035 81CNQ040 81CNQ045 VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Voltage Ratings 35 40 45 Parameters 81CNQ Units Conditions Parameters 81CNQ Units Conditions

81CNQ... Series PD-2.237 rev. B 01/99 www.irf.com Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) 0.1 100 1000 F FM Forward Voltage Drop - V (V) Instantaneous Forward Current - I (A) T = 175°C T = 125°C T = 25°C J J J 0.001 0.01 0.1 100 1000 0 5 10 15 20 25 30 35 40 45 R R 150°C 125°C 100°C 75°C 50°C 25°C Reverse Current - I (mA) Reverse Voltage - V (V) T = 175°CJ 100 1000 10000 0 1 02 03 04 05 0 R TJunction Capacitance - C (pF) Reverse Voltage - V (V) T = 25°CJ 0.01 0.1 thJC t , Rectangular Pulse Duration (Seconds) Single Pulse (Thermal Resistance) Thermal Impedance Z (°C/W) Notes: 1. Duty factor D = t / t 2. Peak T = P x Z + T 1 2 J thJC CDM D = 0.50 D = 0.33 D = 0.25 D = 0.17 D = 0.08 PDM

81CNQ... Series PD-2.237 rev. B 01/99 www.irf.com Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg) Fig. 8 - Unclamped Inductive Test Circuit Fig. 6 - Forward Power Loss Characteristics (Per Leg) FREE-WHEEL DIODE 40HFL40S02CURRENT MONITOR HIGH-SPEED SWITCHIRFP460 L DUT Rg = 25 ohm Vd = 25 Volt+ 0 1 02 03 04 05 06 0 DC Average Power Loss - (Watts) F(AV) RMS Limit Average Forward Current - I (A) D = 0.08 D = 0.17 D = 0.25 D = 0.33 D = 0.50 140 150 160 170 180 0 1 02 03 04 05 06 0 DC Allowable Case Temperature - (°C) F(AV)Average Forward Current - I (A) R (DC) = 0.85 °C/WthJC 100 1000 10000 10 100 1000 10000 FSMNon-Repetitive Surge Current - I (A) p At Any Rated Load Condition And With Rated V Applied Following Surge RRM Square Wave Pulse Duration - t (microsec)

81CNQ... Series PD-2.237 rev. B 01/99 www.irf.com Outline Table Outline D61-8-SM Dimensions are in millimeters and (inches) Outline D61-8 Dimensions are in millimeters and (inches)

81CNQ... Series PD-2.237 rev. B 01/99 www.irf.com Outline Table EUROPEAN HEADQUARTERS: Hurst Green, Oxted, Surrey RH8 9BB, U.K. Tel: ++ 44 1883 732020. Fax: ++ 44 1883 733408. IR CANADA: 15 Lincoln Court, Brampton, Markham, Ontario L6T3Z2. Tel: (905) 453 2200. Fax: (905) 475 8801. IR GERMANY: Saalburgstrasse 157, 61350 Bad Homburg. Tel: ++ 49 6172 96590. Fax: ++ 49 6172 965933. IR ITALY:Via Liguria 49, 10071 Borgaro, Torino. Tel: ++ 39 11 4510111. Fax: ++ 39 11 4510220. IR FAR EAST:K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo, Japan 171. Tel: 81 3 3983 0086. IR SOUTHEAST ASIA: 1 Kim Seng Promenade, Great World City West Tower,13-11, Singapore 237994. Tel: ++ 65 838 4630. http://www.irf.com Fax-On-Demand: +44 1883 733420 Data and specifications subject to change without notice. Outline D61-8-SL Dimensions are in millimeters and (inches) FOOT PRINT