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| Bulletin PD-2.247 rev. B 11/02 85HQ... SERIES SCHOTTKY RECTIFIER Amp TO-203AB (DO-5) Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 s sine VF TJ @ 85 Apk, TJ=125C range 35 to 45 9000 0.62 - 65 to 175 V A V C Description/ Features Units A The 85HQ Schottky rectifier 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. 175C TJ operation Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Hermetic packaging 85HQ... 85 Conforms to JEDEC Outline DO-203AB (DO-5) Dimensions in millimeters and (inches) www.irf.com 1 85HQ... Series Bulletin PD-2.247 rev. B 11/02 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) 35 40 45 VRWM Max. Working Peak Reverse Voltage (V) 85HQ035 85HQ040 85HQ045 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 7 Non-Repetitive Avalanche Energy Repetitive Avalanche Current 85HQ 85 9000 1130 114 17 Units A Conditions 50% duty cycle @ TC = 112 C, rectangular wave form 5s Sine or 3s Rect. pulse 10ms Sine or 6ms Rect. pulse Following any rated load condition and with rated VRRM applied A mJ A TJ = 25 C, IAS = 17 Amps, L = 0.79 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 * See Fig. 1 (1) 85HQ 0.72 0.89 0.62 0.77 Units V V V V mA mA pF nH V/ s @ 85A @ 170A @ 85A @ 170A TJ = 25 C TJ = 125 C Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current (1) * See Fig. 2 Max. Junction Capacitance Typical Series Inductance 5 45 2600 7.5 10000 VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 C Measured from top of terminal to mounting plane dv/dt Max. Voltage Rate of Change (Rated VR) (1) Pulse Width < 300s, Duty Cycle < 2% Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range 85HQ -65 to 175 -65 to 175 0.83 0.25 Units C C C/W C/W DC operation Conditions RthJC Max. Thermal Resistance Junction to Case RthCS Typical Thermal Resistance, Case to Heatsink wt T Approximate Weight Mounting Torque Case Style Min. Max. * See Fig. 4 Mounting surface , smooth and greased 15 (0.53) g (oz.) 23 (20) 46 (40) Kg-cm Non-lubricated threads (Ibf-in) DO-203AB(DO-5) JEDEC 2 www.irf.com 85HQ... Series Bulletin PD-2.247 rev. B 11/02 1000 1000 100 10 1 0.1 0.01 0.001 T J = 175C 150C 125C 100C 75C 50C 25C 100 Instantaneous Forward Current - I F (A) Reverse Current - I R (mA) 0 5 10 15 20 25 30 35 40 45 10 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage T J= 175C (pF) T 10000 T J= 125C T J= 25C 1 Junction Capacitance - C T J = 25C 1000 0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Forward Voltage Drop - V FM (V) 1 100 0 10 20 30 40 50 Reverse Voltage - V R (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics 1 Thermal Impedance - Z thJC (C/W) D = 0.50 D = 0.33 D = 0.25 0.1 D = 0.17 D = 0.08 Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage PDM 0.01 Single Pulse (Thermal Resistance) 0.001 0.00001 0.0001 0.001 0.01 0.1 Notes: t1 t2 1. Duty factor D = t 1 / t 2 2. Peak TJ = PDM x Z thJC+ T C 1 10 100 t 1 , Rectangular Pulse Duration (Seconds) Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics www.irf.com 3 85HQ... Series Bulletin PD-2.247 rev. B 11/02 180 Allowable Case Temperature - (C) R thJC (DC) = 0.83C/W 160 Average Power Loss - (Watts) 80 70 60 50 40 RMS Limit 30 20 10 0 0 25 50 75 100 125 DC D = 0.08 D = 0.17 D = 0.25 D = 0.33 D = 0.50 140 DC 120 100 0 20 40 60 80 100 120 140 Average Forward Current - I F(AV) (A) Average Forward Current - I F(AV) (A) Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current Non-Repetitive Surge Current - I FSM (A) 10000 Fig. 6 - Forward Power Loss Characteristics 1000 At Any Rated Load Condition And With Rated V RRM Applied Following Surge 100 10 100 1000 10000 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Maximum Non-Repetitive Surge Current L HIGH-SPEED SWITCH FREE-WHEEL DIODE 40HFL40S02 + DUT IRFP460 Rg = 25 ohm Vd = 25 Volt CURRENT MONITOR Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com 85HQ... Series Bulletin PD-2.247 rev. B 11/02 Data and specifications subject to change without notice. This product has been designed 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. 11/02 www.irf.com 5 |
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