20L5T 20L5TS SCHOTTKY RECTIFIER 20 Amps I F(AV) = 20Amp V R = 5V Major Ratings and Characteristics Characteristics Values Units I F(AV) Rectangular 20 A waveform V RRM 5 V I FSM @ tp = 5 μs sine 700 A V F @ 9 Apk, T =25 C 0.25 V ( Typical) range - 55 to 25 C Description/ Features The 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 25 C junction temperature. Typical applications are in parallel switching power supplies, converters, reverse battery protection, and redundant power subsystems. 25 C operation (V R < 5V) Single diode configuration Optimized for OR-ing applications Ultra low forward voltage drop Guard ring for enhanced ruggedness and long term reliability High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Case Styles 20L5T 20L5TS Base Cathode Base Cathode 2 3 Cathode Anode TO-220AC N/C 3 Anode D 2 PAK
Voltage Ratings Part number V R Max. DC Reverse Voltage (V) @ = C V RWM Max. Working Peak Reverse Voltage (V) @ = C Absolute Maximum Ratings Parameters Values Units Conditions Values I F(AV) Max. Average Forward Current 20 A 50% duty cycle @ T C = 85 C, rectangular wave form * See Fig. 5 I FSM Max. Peak One Cycle Non-Repetitive 700 5μs Sine or 3μs Rect. pulse Following any rated A load condition and with Surge Current * See Fig. 7 330 0ms Sine or 6ms Rect. pulse rated V RRM applied E AS Non-Repetitive Avalanche Energy 0 m = 25 C, I AS = 2 Amps, L = 6 mh I AR Repetitive Avalanche Current 2 A Current decaying linearly to zero in μsec Frequency limited by max. V A =.5 x V R typical Electrical Specifications Parameters Values Units Conditions Typ. Max. V FM Forward Voltage Drop - 0.4 V @ 9A * See Fig. () - 0.52 V @ 40A I RM Reverse Leakage Current - 0 ma = 25 C * See Fig. 2 () - 600 ma = C 0.25 0.33 V @ 9A 0.37 0.50 V @ 40A = 25 C = 25 C V R = rated V R V F(TO) Threshold Voltage 0.82 V = max. r t Forward Slope Resistance 7.6 mω C T Max. unction Capacitance - 2000 pf V R = 5V DC, (test signal range Khz to Mhz) 25 C L S Typical Series Inductance 8 - nh Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change 0,000 V/ μs (Rated V R ) Thermal-Mechanical Specifications Parameters Values Units Conditions Max. unction Temperature Range -55 to 25 C T stg Max. Storage Temperature Range -55 to 50 C R thc Max. Thermal Resistance.5 C/W DC operation * See Fig. 4 unction to Case R thcs Typical Thermal Resistance 0.50 C/W Mounting surface, smooth and greased Case to Heatsink For TO-220 R tha Max. Thermal Resistance 40 C/W DC operation unction to Ambient For D 2 Pak wt Approximate Weight 2 (0.07) g (oz.) T Mounting Torque Min. 6 (5) Kg-cm Non-lubricated threads Max. 2 (0) (Ibf-in) Marking Device 20L5T Case Style TO-220 20L5TS Case Style D 2 Pak 2 5 () Pulse Width < 300μs, Duty Cycle <2%
0 0 Instantaneous Forward Current - I (A) F 0 T = 25 C T = 75 C = 25 C Reverse Current - I (ma) R unction Capacitance - C (pf) T 0 T = C 75 C 50 C 25 C 0. 0 3 6 9 2 5 00 0 Reverse Voltage - V R (V) Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage T = 25 C 0 0.2 0.4 0.6 0.8.2.4.6 Forward Voltage Drop - V FM (V) Fig. - Maximum Forward Voltage Drop Characteristics 0 0 5 0 5 20 Reverse Voltage - V R (V) Fig. 3 - Typical unction Capacitance Vs. Reverse Voltage Thermal Impedance Z thc ( C/W) 0. D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 Single Pulse (Thermal Resistance) P DM t t Notes: 2. Duty factor D = t / t 2 2. Peak = P DMx Z thc+ TC 0.0 0.0000 0.000 0.00 0.0 0. 0 t, Rectangular Pulse Duration (Seconds) Fig. 4 - Maximum Thermal Impedance Z thc Characteristics 3
Allowable Case Temperature - ( C) 95 90 85 80 75 Square wave (D = 0.50) see note (2) 70 0 4 8 2 6 20 24 Average Power Loss - (Watts) 4 2 0 8 6 4 2 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 RMS Limit DC 0 0 5 0 5 20 25 30 Average Forward Current - I F(AV) (A) Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current Average Forward Current - I F(AV) (A) Fig. 6 - Forward Power Loss Characteristics 0 Non-Repetitive Surge Current - I (A) FSM At Any Rated Load Condition And With Rated V Applied Following Surge RRM 0 0 00 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Maximum Non-Repetitive Surge Current L DUT IRFP460 HIGH-SPEED SWITCH Rg = 25 o hm FREE-WHEEL DIODE + Vd = 25 Volt CURRENT MONITOR 40HFL40S02 Fig. 8 - Unclamped Inductive Test Circuit (2) Formula used: T C = - (Pd + Pd REV ) x R thc ; Pd = Forward Power Loss = I F(AV) x V FM @ (I F(AV) / D) (see Fig. 6); Pd REV = Inverse Power Loss = V R x I R ( - D); I R @ V R = 80% rated V R 4
Outline Table Conform to EDEC outline TO-220AC Dimensions in millimeters and (inches) Conform to EDEC outline D 2 Pak (SMD-220) Dimensions in millimeters and (inches) 5
Part Marking Information EXAMPLE: TO-220AC THIS IS A 20L5T LOT CODE 789 ASSEMBLED ON WW 9, 200 IN THE ASSEMBLY LINE "C" INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE PART NUMBER DATE CODE YEAR = 200 WEEK 9 LINE C D 2 Pak THIS IS A 20L5TS LOT CODE 8024 ASSEMBLED ON WW 02, 2000 INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE 20L5TS PART NUMBER DATE CODE YEAR 0 = 2000 WEEK 02 LINE C Tape & Reel Information Dimensions in millimeters and (inches) 6
Ordering Information Table Device Code 20 L 5 T - 2 3 4 5 - Current Rating (20 = 20A) 2 - Schottky "L" Series 3 - Voltage Code (5 = 5V) 4 - Package T = TO-220 5 - none = Standard Production PbF = Lead-Free Tube Standard Pack Quantity : 50 pieces Data and specifications subject to change without notice. This product has been designed and qualified 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: (30) 252-705 TAC Fax: (30) 252-7309 Visit us at for sales contact information. 06/06 7