STPS4045CP/CW POWER SCHOTTKY RECTIFIERS MAIN PRODUCTS CHARACTERISTICS IF(av) 2 x 20 A VRRM 45 V Tj (max) VF (max) 175 °C 0.63 V A1 K A2 FEATURES AND BENEFITS VERY SMALL CONDUCTION LOSSES NEGLIGIBLE SWITCHING LOSSES EXTREMELY FAST SWITCHING LOW THERMAL RESISTANCE A2 A2 A1 K K A1 DESCRIPTION SOT-93 STPS4045CP Dual center tap Schottky rectifier suited for switchmode power supply and high frequency DC to DC converters. Packaged either in SOT-93 or TO-247 this device is intended for use in low voltage, high frequency inverters, free wheeling and polarity protection applications. TO-247 STPS4045CW ABSOLUTE RATINGS (limiting values, per diode) Symbol VRRM IF(RMS) Parameter Repetitive peak reverse voltage RMS forward current IF(AV) Average forward current Tc = 150°C δ = 0.5 IFSM IRRM Surge non repetitive forward current Repetitive Peak reverse current tp = 10 ms sinusoidal tp = 2 µs square F = 1kHz IRSM Non repetitive peak reverse current tp = 100 µs square Tstg Storage temperature range Maximum operating junction temperature * Tj dV/dt * : Per diode Per device Critical rate of rise of reverse voltage Value 45 Unit V 30 A 20 40 A 220 A 1 A 3 A - 65 to + 175 °C 175 10000 °C V/µs 1 dPtot thermal runaway condition for a diode on its own heatsink < Rth(j−a) dTj June 1999 - Ed: 3B 1/5 STPS4045CP/CW THERMAL RESISTANCES Symbol Rth (j-c) Junction to case Parameter Rth (c) Per diode total Value 1.5 0.8 Coupling 0.1 Unit °C/W When the diodes 1 and 2 are used simultaneously : ∆ TJ(diode 1) = P(diode1)x Rth(j-c) (Per diode) + P(diode 2) x Rth(c) STATIC ELECTRICAL CHARACTERISTICS (per diode) Symbol IR * VF * Parameter Tests Conditions Min. Typ. Max. Unit 200 µA 11 40 mA 0.56 0.63 V VR = VRRM Reverse leakage current Tj = 25°C Forward voltage drop Tj = 125°C IF = 20 A Tj = 25°C IF = 40 A Tj = 125°C IF = 40 A Tj = 125°C 0.94 0.7 0.83 Pulse test : * tp = 380 µs, δ < 2% To evaluate the conduction losses use the following equation : P = 0.46 x IF(AV) + 0.0085 IF2(RMS) Fig. 1: Average forward power dissipation versus average forward current (per diode). Fig. 2: Average current versus ambient temperature (per diode). PF(av)(W) 18 16 14 12 10 8 6 4 2 0 IF(av)(A) δ = 0.2 δ = 0.5 δ = 0.1 δ = 0.05 δ= 1 T IF(av) (A) 0 2/5 2 4 6 8 δ=tp/T tp 10 12 14 16 18 20 22 24 26 22 20 18 16 14 12 10 8 6 4 2 0 Rth(j-a)=Rth(j-c) Rth(j-a)=15°C/W T δ=tp/T 0 25 Tamb(°C) tp 50 75 100 125 150 175 STPS4045CP/CW Fig. 3: Nonrepetitivesurgepeakforwardcurrentversus overloadduration(maximum values)(per diode). Fig. 4: Relative variation of thermal transient impedancejunction to case versus pulse duration. Zth(j-c)/Rth(j-c) IM(A) 200 180 160 140 120 100 80 60 IM 40 20 0 1E-3 1.0 0.8 δ = 0.5 0.6 Tc=75°C Tc=100°C 0.4 Tc=125°C T δ = 0.2 0.2 δ = 0.1 t δ=0.5 1E-2 1E-1 1E+0 Fig. 5: Reverse leakage current versus reverse voltage applied (typical values) (per diode). δ=tp/T tp(s) Single pulse t(s) 0.0 1E-4 1E-3 1E-2 1E-1 tp 1E+0 Fig. 6: Junction capacitance versus reverse voltage applied (typical values) (per diode). IR(µA) C(nF) 5E+4 5.0 Tj=150°C 1E+4 Tj=125°C Tj=100°C 1E+3 1.0 Tj=75°C 1E+2 Tj=50°C 1E+1 1E+0 Tj=25°C VR(V) VR(V) 0 5 10 15 20 25 0.1 30 35 40 45 1 2 5 10 20 50 Fig. 7: Forward voltage drop versus forward current (maximum values) (per diode). IFM(A) 200 100 Typical values Tj=125°C Tj=25°C Tj=125°C 10 VFM(V) 1 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 3/5 STPS4045CP/CW PACKAGE MECHANICAL DATA SOT-93 DIMENSIONS REF. A C D D1 E F F3 F4 G H L L2 L3 L5 L6 O 4/5 Millimeters Min. Typ. Max. 4.70 4.90 1.90 2.10 2.50 2.00 0.50 0.78 1.10 1.30 1.75 2.10 10.80 11.10 14.70 15.20 12.20 16.20 18.0 3.95 4.15 31.00 4.00 4.10 Inches Min. Typ. Max. 1.185 0.193 0.075 0.083 0.098 0.078 0.020 0.031 0.043 0.051 0.069 0.083 0.425 0.437 0.279 0.598 0.480 0.638 0.709 0.156 0.163 1.220 0.157 0.161 STPS4045CP/CW PACKAGE MECHANICAL DATA TO-247 DIMENSIONS REF. V A H L5 L L2 L4 F2 F1 L1 F3 V2 F4 D L3 F(x3) M G = Inches Min. Typ. Max. Min. A 4.85 5.15 0.191 D 2.20 2.60 0.086 E 0.40 0.80 0.015 F 1.00 1.40 0.039 F1 3.00 F2 2.00 F3 2.00 2.40 0.078 F4 3.00 3.40 0.118 G 10.90 H 15.45 15.75 0.608 L 19.85 20.15 0.781 L1 3.70 4.30 0.145 L2 18.50 L3 14.20 14.80 0.559 L4 34.60 L5 5.50 M 2.00 3.00 0.078 V 5° V2 60° Dia. 3.55 3.65 0.139 Dia. V Millimeters Typ. Max. 0.203 0.102 0.031 0.055 0.118 0.078 0.094 0.133 0.429 0.620 0.793 0.169 0.728 0.582 1.362 0.216 0.118 5° 60° 0.143 E = Type Marking Package Weight Base qty Delivery mode STPS4045CP STPS4045CP SOT-93 3.97 g. 30 Tube STPS4045CW STPS4045CW TO-247 4.46 g. 30 Tube Cooling method: by conduction (C) Recommended torque value: 0.8 N.m Maximum torque value: 1.0 N.m. Epoxy meets UL94,V0 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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