PD-2.222 rev. B 12/97 90SQ... SERIES SCHOTTKY RECTIFIER 9 Amp Description/Features Major Ratings and Characteristics The 90SQ axial leaded Schottky rectifier series has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150C junction temperature. Typical applications are in switching power supplies, converters, freewheeling diodes, and reverse battery protection. Characteristics 90SQ... Units IF(AV) Rectangular 9 A 35 to 45 V IFSM @ tp = 5 s sine 2150 A 150 C TJ operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance VF @ 9 Apk, TJ = 125C 0.42 V Very low forward voltage drop High frequency operation TJ range - 55 to 150 C Guard ring for enhanced ruggedness and long term reliability waveform VRRM range CASE STYLE AND DIMENSIONS Conforms to JEDEC Outline DO - 204AR Dimensions in millimeters and inches www.irf.com 1 90SQ... Series PD-2.222 rev. B 12/97 Voltage Ratings Part number VR 90SQ035 90SQ040 90SQ045 Max. DC Reverse Voltage (V) 35 VRWM Max. Working Peak Reverse Voltage (V) 40 45 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 7 90SQ Units 9 A 2150 340 Conditions 50% duty cycle @ TC = 69 C, rectangular wave form 5s Sine or 3s Rect. pulse A EAS Non-Repetitive Avalanche Energy 12 mJ IAR Repetitive Avalanche Current 1.8 A 10ms Sine or 6ms Rect. pulse Following any rated load condition and with rated VRRM applied TJ = 25 C, IAS = 1.8 Amps, L = 7.4 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop 90SQ Units (1) * See Fig. 1 IRM Max. Reverse Leakage Current (1) Conditions 0.48 V @ 9A 0.57 V @ 18A 0.42 V @ 9A 0.52 V @ 18A TJ = 25 C TJ = 125 C 1.75 mA TJ = 25 C * See Fig. 2 70 mA TJ = 125 C CT Max. Junction Capacitance 900 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 C LS Typical Series Inductance 10.0 nH Measured lead to lead 5mm from body 10,000 V/ s dv/dt Max. Voltage Rate of Change (Rated VR) VR = rated VR (1) Pulse Width < 300s, Duty Cycle < 2% Thermal-Mechanical Specifications Parameters 90SQ Units TJ Max. Junction Temperature Range -55 to 150 T stg Max. Storage Temperature Range -55 to 150 C RthJL Max. Thermal Resistance Junction to Lead 8.0 C/W RthJA Typical Thermal Resistance, Junction to Air 44 C/W wt Approximate Weight Case Style 2 Conditions C DCoperation * See Fig. 4 1/8 inch lead leangth 1.4(0.049) g (oz.) DO - 204AR JEDEC www.irf.com 90SQ... Series PD-2.222 rev. B 12/97 ReverseCurrent - I (mA) R 1000 10 T =150C J 100 125C 10 100C 1 75C .1 50C 25C .01 .001 0 5 10 15 20 25 30 35 40 45 ReverseVoltage- VR(V) Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage T J=150C 1000 T J=125C JunctionCapacitance -C (pF) T Instantaneous Forward Current - I (A) F 100 1 T J= 25C .1 0 .1 .2 .3 .4 .5 .6 .7 .8 .9 1 1.1 1.2 T =25C J 100 0 10 20 30 40 50 ReverseVoltage -VR(V) ForwardVoltage Drop - V (V) FM Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Fig. 1 - Maximum Forward Voltage Drop Characteristics Thermal Impedance- ZthJL (C/W ) 10 1 D=0.50 D=0.33 D=0.25 D=0.17 =1/8inch P DM D=0.08 t 1 t2 .1 Notes: 1. Duty factor D= t / t 1 2 Single Pulse (Thermal Resistance) .01 .00001 .0001 .001 2. Peak T =P x Z +T J DM thJL C .01 .1 1 10 100 t1, Rectangular PulseDuration(Seconds) Fig. 4 - Maximum Thermal Impedance ZthJL Characteristics www.irf.com 3 90SQ... Series PD-2.222 rev. B 12/97 6 90SQ RthJL (DC) =8.0C/W 145 5 AveragePower Loss -(W atts) AllowableC aseTem perature- (C) 155 135 125 DC 115 105 4 D=0.08 D=0.17 D=0.25 D=0.33 D=0.50 3 RMSLimit DC 2 1 =1/8inch 95 0 2 4 6 8 10 Average ForwardCurrent - I 12 F(AV) 0 0 14 (A) 2 4 6 8 10 12 14 AverageForwardCurrent - I (A) F(AV) Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current Fig. 6 - Forward Power Loss Characteristics (A) 10000 Non-Repetitive Surge Current - I FSM At Any Rated Load Condition And With Rated VRRM Applied Following Surge 1000 100 10 100 1000 10000 Square Wave Pulse Duration - t p (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