MBR4045CT FEATURES • • • • • 150 °C TJ operation Center tap TO-220, D2PAK and TO-262 packages Low forward voltage drop High frequency operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance • Guard ring for enhanced ruggedness and long term reliability • Designed and qualified for industrial level Base 2 common cathode Anode TO-220AB Anode 2 1 Common 3 cathode DESCRIPTION This center tap Schottky rectifier has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 150 °C junction temperature. Typical applications are in switching power supplies, converters, freewheeling diodes, and reverse battery protection. PRODUCT SUMMARY IF(AV) 2 x 20 A VR 45 V MAJOR RATINGS AND CHARACTERISTICS SYMBOL VALUES UNITS Rectangular waveform (per device) 40 A 45 V IFRM TC = 118 °C (per leg) 40 IFSM tp = 5 µs sine 900 VF 20 Apk, TJ = 125 °C 0.58 V TJ Range - 65 to 150 °C MBR4045CT UNITS 45 V IF(AV) CHARACTERISTICS VRRM A VOLTAGE RATINGS PARAMETER SYMBOL Maximum DC reverse voltage VR Maximum working peak reverse voltage VRWM ABSOLUTE MAXIMUM RATINGS PARAMETER Maximum average forward current SYMBOL per leg per device Peak repetitive forward current per leg TEST CONDITIONS UNITS 20 IF(AV) TC = 118 °C, rated VR IFRM Rated VR, square wave, 20 kHz, TC = 118 °C 5 µs sine or 3 µs rect. pulse VALUES 40 Following any rated load condition and with rated VRRM applied 40 A 900 Maximum peak one cycle non-repetitive surge current per leg IFSM Non-repetitive avalanche energy per leg EAS TJ = 25 °C, IAS = 3 A, L = 4.40 mH 20 mJ IAR Current decaying linearly to zero in 1 µs Frequency limited by TJ maximum VA = 1.5 x VR typical 3 A Repetitive avalanche current per leg 10 ms sine or 6 ms rect. pulse 210 www.kersemi.com 1 MBR4045CT ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS 20 A VFM (1) Maximum forward voltage drop TJ = 25 °C 40 A 20 A TJ = 125 °C 40 A TJ = 25 °C Maximum instantaneus reverse current IRM (1) VALUES UNITS 0.60 0.78 0.58 V 0.75 1 TJ = 100 °C Rated DC voltage 50 mA TJ = 125 °C 95 Maximum junction capacitance CT VR = 5 VDC, (test signal range 100 kHz to 1 MHz) 25 °C 900 pF Typical series inductance LS Measured from top of terminal to mounting plane 8.0 nH 10 000 V/µs VALUES UNITS Maximum voltage rate of change dV/dt Rated VR Note (1) Pulse width < 300 µs, duty cycle < 2 % THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS Maximum junction temperature range TJ - 65 to 150 Maximum storage temperature range TStg - 65 to 175 Maximum thermal resistance, junction to case per leg RthJC DC operation 1.5 Typical thermal resistance, case to heatsink RthCS Mounting surface, smooth and greased (Only for TO-220) 0.50 Maximum thermal resistance, junction to ambient RthJA DC operation (For D2PAK and TO-262) Approximate weight Mounting torque Marking device www.kersemi.com 2 minimum maximum Non-lubricated threads Case style TO-220AB °C °C/W 50 2 g 0.07 oz. 6 (5) kgf · cm (lbf · in) 12 (10) MBR4045CT 1000 IR - Reverse Current (mA) 1000 100 TJ = 150 °C TJ = 125 °C TJ = 25 °C 10 1 TJ = 150 °C 100 TJ = 125 °C 10 TJ = 100 °C 1 TJ = 75 °C TJ = 50 °C 0.1 TJ = 25 °C 0.01 0.001 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 5 10 20 15 25 30 35 40 45 VFM - Forward Voltage Drop (V) VR - Reverse Voltage (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics (Per Leg) Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage (Per Leg) CT - Junction Capacitance (pF) 900 800 700 600 500 TJ = 25 °C 400 300 200 0 10 20 30 50 40 VR - Reverse Voltage (V) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg) ZthJC - Thermal Impedance (°C/W) IF - Instantaneous Forward Current (A) MBR4045CT 10 1 0.01 0.001 0.00001 Single pulse (thermal resistance) 0.0001 PDM D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 0.1 0.001 0.01 t1 t2 Notes: 1. Duty factor D = t1/t2 . 2. Peak TJ = PDM x ZthJC + TC 0.1 1 10 t1 - Rectangular Pulse Duration (s) Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Leg) www.keremi.com 3 MBR4045CT 20 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 18 140 Average Power Loss (W) Allowable Case Temperature (°C) 160 DC 120 Square wave (D = 0.50) Rated VR applied 100 16 14 12 RMS limit 10 DC 8 6 4 2 See note (1) 80 0 0 5 10 15 20 30 25 0 5 10 15 20 25 30 35 IF(AV) - Average Forward Current (A) Fig. 6 - Forward Power Loss Characteristics IFSM - Non-Repetitive Surge Current (A) IF(AV) - Average Forward Current (A) Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current 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 (Per Leg) Note (1) Formula used: T = T - (Pd + Pd C J REV) 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 = Rated VR www.kersemi.com 4 MBR4045CT Device code MBR 40 45 CT - 1 2 3 4 5 1 - Schottky MBR series 2 - Current rating (40 = 40 A) 3 - Voltage rating (45 = 45 V) 4 - CT = Essential part number 5 - None = Standard production PbF = Lead (Pb)-free LINKS TO RELATED DOCUMENTS Dimensions http://www.vishay.com/doc?95222 Part marking information http://www.vishay.com/doc?95225 SPICE model http://www.vishay.com/doc?95296 www.kersemi.com 5