PD-2.230 rev. B 12/97 240NQ... SERIES SCHOTTKY RECTIFIER 240 Amp Major Ratings and Characteristics Characteristics IF(AV) Rectangular Description/Features Units 240 A 35 to 45 V 150° C TJ operation 26,000 A Unique high power, Half-Pak module Replaces four parallel DO-5's 0.55 V - 55 to 150 °C waveform VRRM range IFSM @ tp = 5 µs sine VF @ 240Apk, TJ=125°C TJ range The 240NQ high current Schottky rectifier module series 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, converters, freewheeling diodes, and reverse battery protection. 240NQ... Easier to mount and lower profile than DO-5's High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability CASE STYLE AND DIMENSIONS Outline HALF PAK Module Dimensions in millimeters and inches www.irf.com 1 240NQ... Series PD-2.230 rev. B 12/97 Voltage Ratings Part number VR 240NQ035 240NQ040 240NQ045 35 40 45 Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters 240NQ Units IF(AV) Max. Average Forward Current * See Fig. 5 IFSM 240 Max. Peak One Cycle Non-Repetitive A 26,000 Conditions 50% duty cycle @ TC = 96° C, rectangular wave form 5µs Sine or 3µs Rect. pulse A Surge Current * See Fig. 7 3400 EAS Non-Repetitive Avalanche Energy 324 mJ IAR Repetitive Avalanche Current 48 A 10ms Sine or 6ms Rect. pulse Following any rated load condition and with rated VRRM applied TJ = 25 °C, IAS= 48 Amps, L = 0.28 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. V A = 1.5 x VR typical Electrical Specifications Parameters VFM 240NQ Units Max. Forward Voltage Drop (1) 0.61 V @ 240A 0.81 V @ 480A 0.55 V @ 240A 0.74 V @ 480A Max. Reverse Leakage Current (1) 20 mA TJ = 25 °C * See Fig. 2 800 mA TJ = 125 °C * See Fig. 1 IRM Conditions TJ = 25 °C TJ = 125 °C VR = rated VR CT Max. Junction Capacitance 10,300 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 °C LS Typical Series Inductance 5.0 nH From top of terminal hole to mounting plane 10,000 V/ µs dv/dt Max. Voltage Rate of Change (Rated V R) (1) Pulse Width < 300µs, Duty Cycle < 2% Thermal-Mechanical Specifications Parameters 240NQ Units TJ Max. Junction Temperature Range -55 to 150 Tstg Max. Storage Temperature Range Conditions °C -55 to 150 °C RthJC Max. Thermal Resistance Junction to Case 0.20 °C/W DCoperation RthCS Typical Thermal Resistance, Case to 0.15 °C/W Mounting surface , smooth and greased * See Fig. 4 Heatsink wt Approximate Weight T Mounting Torque Terminal Torque Case Style 2 25.6 (0.9) g (oz.) Min. Max. 40 (35) 58 (50) Min. Max. 58 (50) 86 (75) Non-lubricated threads Kg-cm (Ibf-in) HALF PAK Module www.irf.com 240NQ... Series PD-2.230 rev. B 12/97 Reverse Current - I (mA) R 10000 100 TJ=150°C 1000 125°C 100 100°C 10 75°C 50°C 1 25°C .1 .01 0 5 10 15 20 25 30 35 40 45 ReverseVoltage- VR(V) T =150°C J Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage T =125°C J 10000 T = 25°C J JunctionCapacitance- C (pF) T InstantaneousForwardCurrent - I (A) F 1000 10 1 0 .1 .2 .3 .4 .5 .6 .7 .8 T =25°C J 1000 0 .9 10 ForwardVoltage Drop - V (V) FM 20 30 40 50 ReverseVoltage- V R(V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Fig. 1 - Maximum Forward Voltage Drop Characteristics Thermal Impedance- ZthJC(°C/W) 1 .1 D=0.50 D=0.33 D=0.25 P DM t 1 t2 D=0.17 .01 D=0.08 Notes: 1. Duty factor D= t1/ t2 SinglePulse (Thermal Resistance) .001 .00001 .0001 .001 2. PeakT =P x Z +T J DM thJC C .01 .1 1 10 100 t1, Rectangular Pulse Duration(Seconds) Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics www.irf.com 3 240NQ... Series PD-2.230 rev. B 12/97 240 240NQ RthJC (DC) =0.20°C/W 150 AveragePower Loss -(W atts) AllowableCaseTemperature- (°C) 160 140 130 120 DC 110 100 90 0 50 D=0.08 D=0.17 200 D=0.25 D=0.33 D=0.50 160 RMSLimit 120 80 DC 40 0 0 100 150 200 250 300 350 AverageForwardCurrent - IF(AV) (A) 50 100 150 200 250 300 350 AverageForwardCurrent - I (A) F(AV) Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current Fig. 6 - Forward Power Loss Characteristics 100000 Non-Repetitive Surge Current - I FSM (A) At Any Rated Load Condition And With Rated VRRM Applied Following Surge 10000 1000 10 100 1000 10000 Square Wave Pulse Duration - tp (microsec) Fig. 7 - Maximum Non-Repetitive Surge Current L DUT IRFP460 Rg = 25 ohm CURRENT MONITOR HIGH-SPEED SWITCH FREE-WHEEL DIODE + Vd = 25 Volt 40HFL40S02 Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com