Bulletin PD 2.271 rev. C 02/01 85CNQ015 SCHOTTKY RECTIFIER 80 Amp Major Ratings and Characteristics Description/Features Characteristics 85CNQ015 Units IF(AV) Rectangular 80 A VRRM 15 V waveform IFSM @ tp = 5 µs sine 5200 A VF @ 40 Apk, TJ= 75 °C (per leg) 0.32 V TJ range The 85CNQ015 center tap Schottky rectifier module has been optimized for ultra low forward voltage drop specifically for the OR-ing of parallel power supplies. The proprietary barrier technology allows for reliable operation up to 125 °C junction temperature. Typical applications are in parallel switching power supplies, converters, reverse battery protection, and redundant power subsystems. 125°C TJ operation (VR < 5V) Center tap module Optimized for OR-ing applications Ultra low forward voltage drop High frequency operation - 55 to 125 °C Guard ring for enhanced ruggedness and long term reliability High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low profile, small footprint, high current package Case Styles 85CNQ015 85CNQ015SM D61-8 D61-8-SM www.irf.com 85CNQ015SL D61-8-SL 1 85CNQ015 Bulletin PD-2.271 rev. C 02/01 Voltage Ratings Part number VR 85CNQ015A Max. DC Reverse Voltage (V) 15 VRWM Max. Working Peak Reverse Voltage (V) 25 Absolute Maximum Ratings Parameters 85CNQ Units IF(AV) Max. Average Forward Current 80 Conditions A 50% duty cycle @ TC = 78 °C, rectangular wave form A Following any rated 5µs Sine or 3µs Rect. pulse load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied * See Fig. 5 IFSM Max. Peak One Cycle Non-Repetitive 5200 Surge Current (Per Leg) * See Fig. 7 850 EAS Non-Repetitive Avalanche Energy (Per Leg) 9 mJ IAR Repetitive Avalanche Current (Per Leg) 2 A TJ = 25 °C, IAS = 2 Amps, L = 4.50 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 3 x VR typical Electrical Specifications Parameters VFM IRM 85CNQ Units Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1) Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1) CT Max. Junction Capacitance (Per Leg) LS Typical Series Inductance (Per Leg) dv/dt Max. Voltage Rate of Change (Rated VR) Conditions 0.36 0.45 0.32 V V V @ 40A @ 80A @ 40A 0.42 V @ 80A TJ = 25 °C TJ = 75 °C 20 mA TJ = 25 °C 1000 mA TJ = 100 °C 890 mA TJ = 100 °C VR = 12V 540 mA TJ = 100 °C VR = 5V 3600 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C 5.5 nH Measured lead to lead 5mm from package body 10,000 V/ µs VR = rated VR (1) Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 85CNQ Units TJ Max. Junction Temperature Range -55 to 125 °C Tstg Max. Storage Temperature Range -55 to 150 °C Conditions RthJC Max. Thermal Resistance Junction to Case (Per Leg) 0.85 °C/W DCoperation RthJC Max. Thermal Resistance Junction to Case (Per Package) 0.42 °C/W DCoperation RthCS Typical Thermal Resistance, Case to Heatsink (D61-8 Only) 0.30 °C/W Mounting surface , smooth and greased wt Approximate Weight 7.8 (0.28) g (oz.) T MountingTorque Min. 40 (35) (D61-8 Only) Max. 58 (50) Kg-cm (Ibf-in) 2 * See Fig. 4 www.irf.com 85CNQ015 Bulletin PD-2.271 rev. C 02/01 10 0 0 1000 Reverse C urren t - I R (m A) T J = 100 C 100 75 C 10 0 50 C 10 25 C 1 0 5 10 15 Reverse V oltag e - VR (V ) 10 Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg) = 100°C J TJ = 75°C TJ = 25°C 10 0 00 Junction C apacitance - C T (p F) T 1 T J = 25 C 1 00 0 0.1 0 0.1 0.2 0.3 0.4 0.5 Forward Voltage Drop - V FM 0.6 0 0.7 5 10 15 20 Reverse V olta ge - VR (V ) (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) Therm al Im p edan ce Z thJC ( C /W ) 1 0.1 D D D D D = = = = = 0 .50 0 .33 0 .25 0 .17 0.0 8 PD M t1 Notes: Sing le Pu lse (Therm a l Resistan ce) 0 .01 0.0 0 00 1 0 .0 00 1 0 .0 01 0.0 1 t2 1. D uty factor D = t 1/ t 2 2. Pea k T J = PD M x Z thJC+ T C 0 .1 1 10 100 t 1 , R ectang ular Pulse D ura tion (Second s) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) www.irf.com 3 85CNQ015 Bulletin PD-2.271 rev. C 02/01 20 R thJ C (D C ) = 0.85 C /W Ave rag e Po w er Loss - (W a tts) A llow able C a se Te m pe rat ure - ( C ) 105 100 95 DC 90 85 80 D D D D D 15 = = = = = 0.08 0.17 0.25 0.33 0.50 10 RM S Lim it DC 5 0 0 10 20 30 40 50 60 0 Averag e Forw a rd C urrent - I F(A V) (A ) 10 20 30 40 50 60 A vera ge Forw a rd C urren t - I F(A V ) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (Per Leg) Fig. 6 - Forward Power Loss Characteristics (Per Leg) Non -Repetitive Surge C urrent - I F SM (A) 10000 1000 At A n y Rated Load C on d ition And W ith Rated V RRM A pp lied Follow in g Surg e 100 10 100 1000 10000 Squa re W ave Pulse D ura tion - t p (m icrosec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) L D UT IRFP460 Rg = 25 ohm C URRE NT M O N ITO R H IG H-SPE ED SW ITC H FR EE-W H E EL D IO D E + V d = 25 V olt 40H FL40 S02 Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com 85CNQ015 Bulletin PD-2.271 rev. C 02/01 Outline Table Outline D61-8 Dimensions are in millimeters and (inches) Outline D61-8-SM Dimensions are in millimeters and (inches) www.irf.com 5 85CNQ015 Bulletin PD-2.271 rev. C 02/01 Outline Table Outline D61-8-SL Dimensions are in millimeters and (inches) FOOT PRINT 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. 02/01 6 www.irf.com