20L15T

20L15T Vishay High Power Products Schottky Rectifier, 20 A FEATURES • 125 °C TJ operation (VR < 5 V) Base cathode 2 • Single diode configuration • Optimized for OR-ing applications • Ultra low forward voltage drop TO-220AC • Guard ring for enhanced ruggedness and long term reliability • High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance • Designed and qualified for industrial level 3 Anode 1 Cathode DESCRIPTION PRODUCT SUMMARY IF(AV) 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 125 °C junction temperature. Typical applications are in parallel switching power supplies, converters, reverse battery protection, and redundant power subsystems. 20 A VR 15 V IRM 600 mA at 100 °C MAJOR RATINGS AND CHARACTERISTICS SYMBOL IF(AV) CHARACTERISTICS VALUES Rectangular waveform VRRM UNITS 20 A 15 V IFSM tp = 5 µs sine 700 A VF 19 Apk, TJ = 125 °C (typical) 0.25 V TJ Range - 55 to 125 °C VOLTAGE RATINGS PARAMETER SYMBOL Maximum DC reverse voltage VR Maximum working peak reverse voltage VRWM TEST CONDITIONS TJ = 100 °C 20L15T UNITS 15 V ABSOLUTE MAXIMUM RATINGS PARAMETER Maximum average forward current See fig. 5 SYMBOL IF(AV) TEST CONDITIONS 50 % duty cycle at TC = 85 °C, rectangular waveform Following any rated load condition and with rated VRRM applied VALUES UNITS 20 A Maximum peak one cycle non-repetitive surge current See fig. 7 IFSM Non-repetitive avalanche energy EAS TJ = 25 °C, IAS = 2 A, L = 6 mH 10 mJ IAR Current decaying linearly to zero in 1 µs Frequency limited by TJ maximum VA = 1.5 x VR typical 2 A Repetitive avalanche current Document Number: 93277 Revision: 22-Aug-08 5 µs sine or 3 µs rect. pulse 10 ms sine or 6 ms rect. pulse For technical questions, contact: diodes-tech@vishay.com 700 330 www.vishay.com 1 20L15T Vishay High Power Products Schottky Rectifier, 20 A ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS 19 A Forward voltage drop VFM (1) See fig. 1 TJ = 25 °C 40 A 19 A TJ = 125 °C 40 A Reverse leakage current See fig. 2 IRM (1) Threshold voltage VF(TO) Forward slope resistance rt Maximum junction capacitance Typical series inductance CT LS Maximum voltage rate of change Note (1) Pulse width < 300 µs, duty cycle < 2 % dV/dt TJ = 25 °C VR = Rated VR TJ = 100 °C TYP. MAX. - 0.41 - 0.52 0.25 0.33 0.37 0.50 - 10 - 600 TJ = TJ maximum VR = 5 VDC, (test signal range 100 kHz to 1 MHz) 25 °C - Measured lead to lead 5 mm from package body 8 Rated VR UNITS V mA 0.182 V 7.6 mΩ 2000 pF 10 000 nH V/µs THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES Maximum junction temperature range TJ - 55 to 125 Maximum storage temperature range TStg - 50 to 150 Maximum thermal resistance, junction to case RthJC DC operation See fig. 4 1.5 Typical thermal resistance, case to heatsink RthCS Mounting surface, smooth and greased (For TO-220) 0.50 Maximum thermal resistance, junction to ambient RthJA DC operation (For D2PAK) Approximate weight Mounting torque Marking device www.vishay.com 2 minimum maximum Non-lubricated threads Case style TO-220AC For technical questions, contact: diodes-tech@vishay.com UNITS °C °C/W 40 2 g 0.07 oz. 6 (5) kgf · cm 12 (10) (lbf · in) 20L15T Document Number: 93277 Revision: 22-Aug-08 20L15T Schottky Rectifier, 20 A 1000 IR - Reverse Current (mA) IF - Instantaneous Forward Current (A) 1000 Vishay High Power Products 100 TJ = 125 °C TJ = 75 °C TJ = 25 °C 10 1 TJ = 100 °C 100 TJ = 75 °C TJ = 50 °C 10 TJ = 25 °C 1 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 3 0 6 9 12 15 VR - Reverse Voltage (V) VFM - Forward Voltage Drop (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage CT - Junction Capacitance (pF) 10 000 TJ = 25 °C 1000 100 0 5 15 10 20 ZthJC - Thermal Impedance (°C/W) VR - Reverse Voltage (V) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage 10 1 PDM t1 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 0.1 Single pulse (thermal resistance) 0.01 0.00001 0.0001 0.001 0.01 0.1 t2 Notes: 1. Duty factor D = t1/t2 . 2. Peak TJ = PDM x ZthJC + TC 1 10 100 t1 - Rectangular Pulse Duration (s) Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics Document Number: 93277 Revision: 22-Aug-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 3 20L15T Schottky Rectifier, 20 A 100 14 95 12 Average Power Loss (W) Allowable Case Temperature (°C) Vishay High Power Products 90 Square wave (D = 0.50) 85 80 75 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 10 8 RMS limit 6 4 DC 2 See note (1) 0 70 0 4 8 12 16 20 0 24 5 10 15 20 25 30 IF(AV) - Average Forward Current (A) IF(AV) - Average Forward Current (A) Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current Fig. 6 - Forward Power Loss Characteristics IFSM - Non-Repetitive Surge Current (A) 1000 At any rated load condition and with rated VRRM applied following surge 100 10 100 1000 10 000 tp - Square Wave Pulse Duration (µs) Fig. 7 - Maximum Non-Repetitive Surge Current L D.U.T. IRFP460 Rg = 25 Ω Current monitor High-speed switch Freewheel diode + Vd = 25 V 40HFL40S02 Fig. 8 - Unclamped Inductive Test Circuit Note Formula used: TC = TJ - (Pd + PdREV) x RthJC; Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6); PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated VR (1) www.vishay.com 4 For technical questions, contact: diodes-tech@vishay.com Document Number: 93277 Revision: 22-Aug-08 20L15T Schottky Rectifier, 20 A Vishay High Power Products ORDERING INFORMATION TABLE Device code 20 L 15 T - 1 2 3 4 5 1 - Current rating (20 = 20 A) 2 - Schottky “L” series 3 - Voltage code (15 = 15 V) 4 - Package T = TO-220 5 - None = Standard production PbF = Lead (Pb)-free Tube standard pack quantity: 50 pieces LINKS TO RELATED DOCUMENTS Dimensions http://www.vishay.com/doc?95221 Part marking information http://www.vishay.com/doc?95224 Document Number: 93277 Revision: 22-Aug-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 5 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1