Order this document by MBRS140LT3/D SEMICONDUCTOR TECHNICAL DATA SMB Power Surface Mount Package . . . employing the Schottky Barrier principle in a metal–to–silicon power rectifier. Features epitaxial construction with oxide passivation and metal overlay contact. Ideally suited for low voltage, high frequency switching power supplies; free wheeling diodes and polarity protection diodes. • • • • SCHOTTKY BARRIER RECTIFIER 1.0 AMPERES 40 VOLTS Compact Package with J–Bend Leads Ideal for Automated Handling Highly Stable Oxide Passivated Junction Guardring for Over–Voltage Protection Low Forward Voltage Drop Mechanical Characteristics: • Case: Molded Epoxy • Epoxy Meets UL94, VO at 1/8″ • Weight: 95 mg (approximately) • Polarity: Notch in Plastic Body Indicates Cathode Lead • Lead and Mounting Surface Temperature for Soldering Purposes: 260°C Max. for 10 Seconds • Available in 12 mm Tape, 2500 Units per 13″ Reel, Add “T3” Suffix to Part Number • Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable • Marking: B14L CASE 403A–03 SMB MAXIMUM RATINGS Rating Symbol Value Unit VRRM VRWM VR 40 Volts IO 1.0 Amps Peak Repetitive Forward Current (At Rated VR, Square Wave, 100 kHz, TC = 110°C) IFRM 2.0 Amps Non–Repetitive Peak Surge Current (Surge applied at rated load conditions, halfwave, single phase, 60 Hz) IFSM 40 Amps Tstg, TC – 55 to +150 °C Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Average Rectified Forward Current (At Rated VR, TC = 110°C) Storage / Operating Case Temperature Operating Junction Temperature Voltage Rate of Change (Rated VR, TJ = 25°C) TJ – 55 to +125 °C dv/dt 10,000 V/ms RθJL RθJA 24 80 °C/W THERMAL CHARACTERISTICS Thermal Resistance — Junction–to–Lead (2) Thermal Resistance — Junction–to–Ambient (2) ELECTRICAL CHARACTERISTICS VF Maximum Instantaneous Forward Voltage (1) see Figure 2 (IF = 1.0 A) (IF = 2.0 A) IR Maximum Instantaneous Reverse Current see Figure 4 (VR = 40 V) (VR = 20 V) TJ = 25°C TJ = 125°C 0.5 0.6 0.425 0.58 TJ = 25°C TJ = 100°C 0.4 0.02 10 5.0 Volts mA This document contains information on a new product. Specifications and information herein are subject to change without notice. (1) Pulse Test: Pulse Width ≤ 250 µs, Duty Cycle ≤ 2.0%. (2) Mounted with minimum recommended pad size, PC Board FR4. Device Rectifier Motorola, Inc. 1997 Data 1 100 10 1.0 TJ = 125°C 25°C 100°C – 40°C 0.1 0.3 0.1 0.5 0.7 0.9 TJ = 125°C 1.0 100°C 25°C 0.1 0.3 0.1 0.5 0.9 0.7 Figure 1. Typical Forward Voltage Figure 2. Maximum Forward Voltage 100E–3 IR , MAXIMUM REVERSE CURRENT (AMPS) IR , REVERSE CURRENT (AMPS) 10 VF, MAXIMUM INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 10E–3 TJ = 125°C 100°C 1.0E–3 TJ = 125°C 10E–3 100°C 1.0E–3 25°C 100E–6 100E–6 10E–6 25°C 1.0E–6 10 0 20 30 1.0E–6 0 10 20 30 40 VR, REVERSE VOLTAGE (VOLTS) VR, REVERSE VOLTAGE (VOLTS) Figure 3. Typical Reverse Current Figure 4. Maximum Reverse Current PFO , AVERAGE POWER DISSIPATION (WATTS) dc FREQ = 20 kHz 1.4 1.2 SQUARE WAVE 1.0 Ipk/Io = p 0.8 Ipk/Io = 5.0 0.6 Ipk/Io = 10 0.4 Ipk/Io = 20 0.2 0 25 10E–6 40 1.6 IO , AVERAGE FORWARD CURRENT (AMPS) 100 VF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 100E–3 2 IF, INSTANTANEOUS FORWARD CURRENT (AMPS) IF, INSTANTANEOUS FORWARD CURRENT (AMPS) MBRS140LT3 45 65 85 105 125 0.9 0.8 SQUARE WAVE 0.7 dc Ipk/Io = p 0.6 Ipk/Io = 5.0 0.5 Ipk/Io = 10 0.4 0.3 Ipk/Io = 20 0.2 0.1 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 TL, LEAD TEMPERATURE (°C) IO, AVERAGE FORWARD CURRENT (AMPS) Figure 5. Current Derating Figure 6. Forward Power Dissipation 1.6 Rectifier Device Data MBRS140LT3 TJ , DERATED OPERATING TEMPERATURE (°C) 1000 C, CAPACITANCE (pF) TJ = 25°C 100 10 R T, TRANSIENT THERMAL RESISTANCE (NORMALIZED) 0 5.0 10 15 20 25 30 35 125 24°C/W 115 44°C/W 63°C/W 80°C/W 105 Rtja = 94°C/W 95 85 75 65 40 0 5.0 10 15 20 25 30 35 40 VR, REVERSE VOLTAGE (VOLTS) VR, DC REVERSE VOLTAGE (VOLTS) Figure 7. Capacitance Figure 8. Typical Operating Temperature Derating* * Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any reverse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating TJ may be calculated from the equation: TJ = TJmax – r(t)(Pf + Pr) where r(t) = thermal impedance under given conditions, Pf = forward power dissipation, and Pr = reverse power dissipation This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax – r(t)Pr, where r(t) = Rthja. For other power applications further calculations must be performed. 1.0E+00 50% 1.0E–01 20% 10% 5.0% 2.0% 1.0E–02 1.0% 1.0E–03 Rtjl(t) = Rtjl*r(t) 1.0E–04 0.00001 0.0001 0.001 0.01 0.1 1.0 10 100 1000 t, TIME (s) R T, TRANSIENT THERMAL RESISTANCE (NORMALIZED) Figure 9. Thermal Response — Junction to Lead 1.0E+00 50% 20% 1.0E–01 1.0E–02 10% 5.0% 2.0% 1.0% 1.0E–03 Rtjl(t) = Rtjl*r(t) 1.0E–04 0.00001 0.0001 0.001 0.01 0.1 1.0 10 100 1000 t, TIME (s) Figure 10. Thermal Response — Junction to Ambient Rectifier Device Data 3 MBRS140LT3 0.089 2.261 0.108 2.743 0.085 2.159 inches mm SMB PACKAGE DIMENSIONS S NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. D DIMENSION SHALL BE MEASURED WITHIN DIMENSION P. A D B C K J P INCHES DIM MIN MAX A 0.160 0.180 B 0.130 0.150 C 0.075 0.095 D 0.077 0.083 H 0.0020 0.0060 J 0.006 0.012 K 0.030 0.050 P 0.020 REF S 0.205 0.220 MILLIMETERS MIN MAX 4.06 4.57 3.30 3.81 1.90 2.41 1.96 2.11 0.051 0.152 0.15 0.30 0.76 1.27 0.51 REF 5.21 5.59 H CASE 403A–03 ISSUE B Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447 JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 4–32–1, Nishi–Gotanda, Shinagawa–ku, Tokyo 141, Japan. 81–3–5487–8488 Mfax: [email protected] – TOUCHTONE 602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, – US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 INTERNET: http://motorola.com/sps 4 ◊ RectifierMBRS140LT3/D Device Data