PD -91887C 8CLJQ045 SCHOTTKY RECTIFIER HIGH EFFICIENCY SERIES 8A, 45V Major Ratings and Characteristics Characteristics I F(AV) Rectangular waveform VRRM (Per Leg) IFSM @ tp = 8.3ms half-sine (Per Leg) VF @ 4Apk, TJ =125°C (Per Leg) Description/Features 8CLJQ045 Units 8 A 45 V 80 A 0.58 V TJ, Tstg Operating and storage -55 to 150 °C The 8CLJQ045 center tap Schottky rectifier has been expressly designed to meet the rigorous requirements of hi-rel environments. It is packaged in the hermetic surface mount SMD-0.5 ceramic package. The device's forward voltage drop and reverse leakage current are optimized for the lowest power loss and the highest circuit efficiency for typical high frequency switching power supplies and resonent power converters. Full MIL-PRF-19500 quality conformance testing is available on source controlled drawings to TX, TXV and S levels. • • • • • Hermetically Sealed Center Tap Low Forward Voltage Drop High Frequency Operation Guard Ring for Enhanced Ruggedness and Long Term Reliability • Surface Mount • Lightweight CASE STYLE (ISOLATED BASE) 2 1 3 ANODE COMMON ANODE CATHODE Case Outline and Dimensions - SMD-0.5 www.irf.com 1 07/19/04 8CLJQ045 Voltage Ratings Part number VR 8CLJQ045 Max. DC Reverse Voltage (V) (Per Leg) 45 VRWM Max. Working Peak Reverse Voltage (V) (Per Leg) Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current Limits Units 8.5 A 50% duty cycle @ TC = 100°C, rectangular waveform Conditions 80 A @ tp = 8.3 ms half-sine See Fig. 5 I FSM Max. Peak One Cycle Non - Repetitive Surge Current (Per Leg) Electrical Specifications Parameters V FM I RM Limits Units Max. Forward Voltage Drop 0.67 V @ 4A (Per Leg) See Fig. 1 0.96 V @ 8A 0.58 V @ 4A 0.92 V @ 8A Max. Reverse Leakage Current Conditions TJ = 25°C TJ =1 25°C 0.15 mA TJ = 25°C (Per Leg) See Fig. 2 43 mA TJ = 125°C VR = rated VR CT Max. Junction Capacitance (Per Leg) 760 pF VR = 5VDC ( 1MHz, 25°C ) LS Typical Series Inductance (Per Leg) 4.8 nH Measured from center of cathode pad to center of anode pad Thermal-Mechanical Specifications Parameters Limits Units Conditions TJ Max.Junction Temperature Range -55 to 150 Tstg Max. Storage Temperature Range -55 to 150 °C 3.73 °C/W DC operation 1.86 °C/W DC operation RthJC Max. Thermal Resistance, Junction °C See Fig. 4 to Case (Per Leg) RthJC Max. Thermal Resistance, Junction to Case (Per Package) wt Weight (Typical) Die Size Case Style 1.0 g 60X60 mils SMD-0.5 Pulse Width < 300µs, Duty Cycle < 2% 2 www.irf.com 8CLJQ045 100 Reverse Current - I R (mA) T = 150°C 100 J 10 100°C 1 75°C 50°C 0.1 25°C 0.01 A (A) 0.001 0 F 10 20 30 40 50 Reverse Voltage - V R (V) Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage (Per Leg) 10 = 150°C T = 125°C J J 1000 T (pF) T TJ = 25°C TJ = -55°C 1 0.0 0.5 1.0 1.5 Forward Voltage Drop - V FM (V) 2.0 TJ = 25°C Junction Capacitance - C Instantaneous Forward Current - I 125°C A 100 0 Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) 10 20 30 40 50 Reverse Voltage - V R (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) www.irf.com 3 8CLJQ045 Thermal Response (Z thJC ) 10 D = 0.50 1 0.20 0.10 0.05 0.02 0.01 0.1 PDM SINGLE PULSE (THERMAL RESPONSE) t1 t2 0.01 0.00001 Notes: 1. Duty factor D = t 1 / t 2 2. Peak TJ = P DM x Z thJC + TC 0.0001 0.001 0.01 0.1 1 t1, Rectangular Pulse Duration (sec) Allowable Case Temperature - (°C) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) 180 8CLJQ045 8CLQ045 R (DC) = 3.73°C/W 160 thJCRthJC (DC) = 1.86°C/W 140 120 DC 100 80 60 40 20 A 0 0 2 4 6 8 10 12 Average Forward Current - I F(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 IR LEOMINSTER : 205 Crawford St., Leominster, Massachusetts 01453, USA Tel: (978) 534-5776 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 07/2004 4 www.irf.com