Order this document by MR750/D SEMICONDUCTOR TECHNICAL DATA • Current Capacity Comparable to Chassis Mounted Rectifiers • Very High Surge Capacity • Insulated Case Mechanical Characteristics: • Case: Epoxy, Molded • Weight: 2.5 grams (approximately) • Finish: All External Surfaces Corrosion Resistant and Terminal Lead is Readily Solderable • Lead Temperature for Soldering Purposes: 260°C Max. for 10 Seconds • Polarity: Cathode Polarity Band • Shipped 1000 units per plastic bag. Available Tape and Reeled, 800 units per reel by adding a “RL’’ suffix to the part number • Marking: R750, R751, R752, R754, R758, R760 MR754 and MR760 are Motorola Preferred Devices HIGH CURRENT LEAD MOUNTED SILICON RECTIFIERS 50–1000 VOLTS DIFFUSED JUNCTION CASE 194–04 MAXIMUM RATINGS Symbol MR750 MR751 MR752 MR754 MR756 MR758 MR760 Unit Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Characteristic VRRM VRWM VR 50 100 200 400 600 800 1000 Volts Non–Repetitive Peak Reverse Voltage (Halfwave, single phase, 60 Hz peak) VRSM 60 120 240 480 720 960 1200 Volts VR(RMS) 35 70 140 280 420 560 700 Volts RMS Reverse Voltage Average Rectified Forward Current (Single phase, resistive load, 60 Hz) See Figures 5 and 6 IO Non–Repetitive Peak Surge Current (Surge applied at rated load conditions) Operating and Storage Junction Temperature Range Amps 22 (TL = 60°C, 1/8″ Lead Lengths) 6.0 (TA = 60°C, P.C. Board mounting) IFSM TJ, Tstg Amps 400 (for 1 cycle) *65 to +175 °C ELECTRICAL CHARACTERISTICS Characteristic and Conditions Symbol Max Unit Maximum Instantaneous Forward Voltage Drop (iF = 100 Amps, TJ = 25°C) vF 1.25 Volts Maximum Forward Voltage Drop (IF = 6.0 Amps, TA = 25°C, 3/8″ leads) VF 0.90 Volts Maximum Reverse Current (Rated dc Voltage) IR 25 1.0 µA mA TJ = 25°C TJ = 100°C Designer’s Data for “Worst Case” Conditions — The Designer’s Data Sheet permits the design of most circuits entirely from the information presented. SOA Limit curves — representing boundaries on device characteristics — are given to facilitate “worst case” design. Preferred devices are Motorola recommended choices for future use and best overall value. Rev 2 Rectifier Device Data Motorola, Inc. 1996 1 500 IFSM , PEAK HALF WAVE CURRENT (AMP) 700 TJ = 25°C 300 MAXIMUM 200 TYPICAL 70 50 VRRM MAY BE APPLIED BETWEEN EACH CYCLE OF SURGE. THE TJ NOTED IS TJ PRIOR TO SURGE 400 300 25°C 175°C 200 25°C TJ = 175°C 100 80 60 30 1.0 2.0 5.0 20 10 20 50 100 NUMBER OF CYCLES AT 60 Hz Figure 2. Maximum Surge Capability 10 7.0 5.0 +0.5 3.0 0 COEFFICIENT (mV/° C) iF, INSTANTANEOUS FORWARD CURRENT (AMP) 100 600 2.0 1.0 0.7 0.5 TYPICAL RANGE –0.5 –1.0 –1.5 0.3 0.2 –2.0 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 0.2 2.6 1.0 2.0 5.0 10 20 50 100 200 Figure 3. Forward Voltage Temperature Coefficient Figure 1. Forward Voltage R θJL(t) , JUNCTION–TO–LEAD TRANSIENT THERMAL RESISTANCE ( °C/W) 0.5 iF, INSTANTANEOUS FORWARD CURRENT (AMP) vF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS) 20 10 L 1/2” 3/8” L 1/4” 5.0 1/8” HEAT SINK 3.0 Both leads to heat sink, with lengths as shown. Variations in RqJL(t) below 2.0 seconds are independent of lead connections of 1/8 inch or greater, and vary only about ±20% from the values shown. Values for times greater than 2.0 seconds may be obtained by drawing a curve, with the end point (at 70 seconds) taken from Figure 8, or calculated from the notes, using the given curves as a guide. Either typical or maximum values may be used. For RqJL(t) values at pulse widths less than 0.1 second, the above curve can be extrapolated down to 10 µs at a continuing slope. 2.0 1.0 0.5 0.3 0.2 0.1 0.2 0.3 0.5 0.7 1.0 2.0 3.0 5.0 7.0 10 20 30 50 70 t, TIME (SECONDS) Figure 4. Typical Transient Thermal Resistance 2 Rectifier Device Data IF(AV) , AVERAGE FORWARD CURRENT (AMPS) IF(AV) , AVERAGE FORWARD CURRENT (AMPS) 28 RESISTIVE INDUCTIVE LOADS L = 1/8” 24 1/4” 20 BOTH LEADS TO HEAT SINK WITH LENGTHS AS SHOWN 3/8” 16 12 5/8” 8.0 4.0 0 0 20 40 60 80 100 120 140 160 180 200 7.0 RθJA = 25°C/W SEE NOTE 6.0 RESISTIVE INDUCTIVE LOADS CAPACITANCE LOADS – 1 & 3 5.0 I(pk) = 5 Iavg I(pk) = 10 Iavg I(pk) = 20 Iavg 4.0 3.0 RθJA = 40°C/W SEE NOTE 2.0 6 (IPK/IAVE = 6.28) 1.0 0 f = 60 Hz 0 40 20 TL, LEAD TEMPERATURE (°C) 80 60 100 120 140 160 180 200 TA, AMBIENT TEMPERATURE (°C) Figure 5. Maximum Current Ratings Figure 6. Maximum Current Ratings NOTES THERMAL CIRCUIT MODEL PF(AV) , POWER DISSIPATION (WATTS) 32 (For Heat Conduction Through The Leads) CAPACITANCE LOADS I(pk) = 5 Iavg 28 24 10 Iavg 20 20 Iavg 6 RθS(A) 1 & 3 RθL(A) RθJ(A) TA(A) RθL(K) RθJ(K) RθS(K) TA(K) PF TL(A) TC(A) TJ TC(K) TL(K) 16 12 RESISTIVE – INDUCTIVE LOADS 8.0 4.0 0 0 8.0 4.0 12 16 20 24 28 32 IF(AV), AVERAGE FORWARD CURRENT (AMPS) Figure 7. Power Dissipation R θJL , THERMAL RESISTANCE, JUNCTION–TO–LEAD( ° C/W) 40 SINGLE LEAD TO HEAT SINK, INSIGNIFICANT HEAT FLOW THROUGH OTHER LEAD 35 30 25 20 15 10 BOTH LEADS TO HEAT SINK, EQUAL LENGTH 5.0 0 0 1/8 1/4 3/8 1/2 5/8 3/4 7/8 L, LEAD LENGTH (INCHES) Figure 8. Steady State Thermal Resistance Rectifier Device Data 1.0 Use of the above model permits junction to lead thermal resistance for any mounting configuration to be found. Lowest values occur when one side of the rectifier is brought as close as possible to the heat sink as shown below. Terms in the model signify: TA = Ambient Temperature TC = Case Temperature TL = Lead Temperature TJ = Junction Temperature RS = Thermal Resistance, Heat Sink to Ambient RL = Thermal Resistance, Lead to Heat Sink RJ = Thermal Resistance, Junction to Case PF = Power Dissipation (Subscripts A and K refer to anode and cathode sides, respectively.) Values for thermal resistance components are: RL = 40°C/W/in. Typically and 44°C/W/in Maximum. RJ = 2°C/W typically and 4°C/W Maximum. Since RJ is so low, measurements of the case temperature, TC, will be approximately equal to junction temperature in practical lead mounted applications. When used as a 60 Hz rectifierm the slow thermal response holds TJ(PK) close to TJ(AVG). Therefore maximum lead temperature may be found from: TL = 175°–RθJL PF. PF may be found from Figure 7. The recommended method of mounting to a P.C. board is shown on the sketch, where RθJA is approximately 25°C/W for a 1–1/2” x 1–1/2” copper surface area. Values of 40°C/W are typical for mounting to terminal strips or P.C. boards where available surface area is small. ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ Board Ground Plane Recommended mounting for half wave circuit 3 30 t rr , REVERSE RECOVERY TIME ( m s) RELATIVE EFFICIENCY (%) 100 TJ = 25°C 70 TJ = 175°C 50 CURRENT INPUT WAVEFORM 30 20 1.0 2.0 5.0 7.0 10 3.0 20 30 50 20 TJ = 25°C 10 7.0 IF = 5 A 3A 1A 5.0 IF 3.0 0 2.0 IR trr 1.0 0.1 70 100 0.2 REPETITION FREQUENCY (kHz) t fr , FORWARD RECOVERY TIME ( m s) 1.0 TJ = 25°C C, CAPACITANCE (pF) 300 200 100 70 50 20 uf tfr 0.5 ufr ufr = 1.0 V 0.3 0.2 ufr = 2.0 V 5.0 7.0 10 3.0 2.0 20 30 50 70 100 2.0 1.0 10 VO Figure 13. Single–Phase Half–Wave Rectifier Circuit The rectification efficiency factor σ shown in Figure 9 was calculated using the formula: V2o(dc) RL + P(rms) + V2o(rms) .100% + (1) V 2o (dc) .100% V 2o (ac) V 2o (dc) ) For a sine wave input Vm sin (wt) to the diode, assumed lossless, the maximum theoretical efficiency factor becomes: V2m p 2R L . V2m 100% 4R L 7.0 For a square wave input of amplitude Vm, the efficiency factor becomes: RL RL 5.0 Figure 12. Forward Recovery Time RS P (dc) 3.0 IF, FORWARD PULSE CURRENT (AMP) Figure 11. Junction Capacitance 4 TJ = 25°C 0.7 VR, REVERSE VOLTAGE (VOLTS) + 5.0 7.0 10 0.1 10 1.0 σ (sine) 3.0 Figure 10. Reverse Recovery Time 30 σ 2.0 IR/IF, RATIO OF REVERSE TO FORWARD CURRENT Figure 9. Rectification Efficiency 1000 700 500 0.5 0.7 1.0 0.3 + π42 .100% + 40.6% (2) σ (square) + V 2m 2R L . V 2m 100% RL + 50% (3) (A full wave circuit has twice these efficiencies) As the frequency of the input signal is increased, the reverse recovery time of the diode (Figure 10) becomes significant, resulting in an increasing ac voltage component across RL which is opposite in polarity to the forward current, thereby reducing the value of the efficiency factor σ, as shown on Figure 9. It should be emphasized that Figure 9 shows waveform efficiency only; it does not provide a measure of diode losses. Data was obtained by measuring the ac component of Vo with a true rms ac voltmeter and the dc component with a dc voltmeter. The data was used in Equation 1 to obtain points for Figure 9. Rectifier Device Data PACKAGE DIMENSIONS A D NOTES: 1. CATHODE SYMBOL ON PACKAGE. 1 K DIM A B D E B MILLIMETERS MIN MAX 8.43 8.69 5.94 6.25 1.27 1.35 25.15 25.65 INCHES MIN MAX 0.332 0.342 0.234 0.246 0.050 0.053 0.990 1.010 STYLE 1: PIN 1. CATHODE 2. ANODE K 2 CASE 194–04 ISSUE F Rectifier Device Data 5 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. 1–303–675–2140 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 Customer Focus Center: 1–800–521–6274 Mfax: [email protected] – TOUCHTONE 1–602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, Motorola Fax Back System – US & Canada ONLY 1–800–774–1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 – http://sps.motorola.com/mfax/ HOME PAGE: http://motorola.com/sps/ 6 ◊ CODELINE TO BE PLACED HERE Rectifier Device Data MR750/D