STPS2545CT/CG/CFP ® POWER SCHOTTKY RECTIFIER MAIN PRODUCT CHARACTERISTICS A1 IF(AV) 2 x 12.5 A VRRM 45 V Tj (max) 175 °C VF (max) 0.57 V K A2 FEATURES AND BENEFITS VERY SMALL CONDUCTION LOSSES NEGLIGIBLE SWITCHING LOSSES EXTREMELY FAST SWITCHING LOW THERMAL RESISTANCE AVALANCHE CAPABILITY SPECIFIED K A1 ■ A2 K ■ TO-220AB STPS2545CT ■ A2 A1 ■ ■ D2PAK STPS2545CG DESCRIPTION Dual center tap Schottky rectifier suited for Switch Mode Power Supplies and high frequency DC to DC converters. This device is especially intended for use in low voltage, high frequency inverters, free wheeling and polarity protection applications. A2 K A1 TO-220FPAB STPS2545CFP ABSOLUTE RATINGS (limiting values, per diode) Symbol Value Unit VRRM Repetitive peak reverse voltage 45 V IF(RMS) RMS forward current 30 A A IF(AV) Average forward current δ = 0.5 TO-220AB D2PAK Tc = 160°C Per diode 12.5 TO-220FPAB Tc = 140°C Per device 25 IFSM Surge non repetitive forward current tp = 10 ms sinusoidal IRRM Repetitive peak reverse current IRSM PARM Tstg Tj dV/dt * : Parameter 200 A tp = 2 µs square F = 1kHz 1 A Non repetitive peak reverse current tp = 100 µs square 2 A Repetitive peak avalanche power tp = 1µs Tj = 25°C Storage temperature range Maximum operating junction temperature * Critical rate of rise of reverse voltage 4800 W - 65 to + 175 °C 175 °C 10000 V/µs dPtot 1 thermal runaway condition for a diode on its own heatsink < dTj Rth( j − a ) July 2003 - Ed: 2A 1/6 STPS2545CT/CG/CFP THERMAL RESISTANCES Symbol Parameter Rth (j-c) 2 Junction to ambient TO-220AB / D PAK Per diode TO-220FPAB TO-220AB / D PAK Total Min. Typ. Max. Unit 125 µA 9 25 mA 0.50 0.57 V VR = VRRM Tj = 125°C Forward Voltage drop Pulse test : °C/W 3 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 Parameter Tests Conditions V F* °C/W 0.6 Coupling TO-220FPAB Tj = 25°C °C/W 3.5 TO-220AB / D2PAK Reverse leakage Current 1.6 1.1 TO-220FPAB IR * Unit 4 2 Rth (c) Value Tj = 125°C IF = 12.5 A Tj = 25°C IF = 25 A Tj = 125°C IF = 25 A 0.84 0.65 0.72 * tp = 380 µs, δ < 2% To evaluate the conduction losses use the following equation : P = 0.42 x IF(AV) + 0.012 x IF2(RMS) Fig. 1: Conduction losses versus average current. Fig. 2: Average forward current versus ambient temperature (δ=0.5). IF(AV)(A) PF(AV)(W) 14 10 δ = 0.05 δ = 0.1 9 δ = 0.2 δ = 0.5 TO-220AB/D²PAK Rth(j-a)=Rth(j-c) 12 8 10 δ=1 7 6 8 5 6 4 Rth(j-a)=50°C/W 3 4 T 2 T 2 1 IF(AV)(A) δ=tp/T 0 0.0 2.5 5.0 7.5 10.0 12.5 δ=tp/T tp 0 15.0 Fig. 3: Normalized avalanche power derating versus pulse duration. 0 25 50 75 100 125 150 175 Fig. 4: Normalized avalanche power derating versus junction temperature. PARM(tp) PARM(1µs) 1 Tamb(°C) tp 1.2 PARM(tp) PARM(25°C) 1 0.1 0.8 0.6 0.4 0.01 0.2 0.001 0.01 2/6 Tj(°C) tp(µs) 0.1 1 0 10 100 1000 0 25 50 75 100 125 150 STPS2545CT/CG/CFP Fig. 5-1: Non repetitive surge peak forward current versus overload duration (maximum values) (TO-220AB, D²PAK). Fig. 5-2: Non repetitive surge peak forward current versus overload duration (maximum values) (TO-220FPAB). IM(A) IM(A) 200 120 180 100 160 140 120 80 TC=25°C 60 TC=75°C TC=25°C 100 TC=75°C 80 TC=125°C 40 IM IM 20 20 t(s) t δ=0.5 0 t(s) t δ=0.5 0 1.E-03 1.E-02 1.E-01 1.E+00 Fig. 6-1: Relative variation of thermal impedance junction to case versus pulse duration (TO-220AB, D2PAK). 1.E-03 1.E-02 1.E-01 1.E+00 Fig. 6-2: Relative variation of thermal impedance junction to case versus pulse duration (TO-220FPAB). Zth(j-c) / Rth(j-c) Zth(j-c) / Rth(j-c) 1.0 1.0 0.9 0.9 0.8 0.8 0.7 0.6 TC=125°C 40 60 0.7 δ = 0.5 0.6 0.5 δ = 0.5 0.5 0.4 δ = 0.2 0.3 δ = 0.1 0.4 0.3 T 0.2 0.2 δ = 0.2 T δ = 0.1 Single pulse 0.1 tP(s) δ=tp/T 0.0 1.E-03 1.E-02 0.1 tp tP(s) Single pulse 0.0 1.E-01 1.E+00 Fig. 7: Reverse leakage current versus reverse voltage applied (typical values). 1.E-03 1.E-02 1.E-01 δ=tp/T tp 1.E+00 1.E+01 Fig. 8: Junction capacitance versus reverse voltage applied (typical values). C(nF) IR(mA) 10.0 1.E+02 F=1MHz Vosc=30mV Tj=25°C Tj=150°C 1.E+01 Tj=125°C Tj=100°C 1.E+00 1.0 Tj=75°C 1.E-01 Tj=50°C 1.E-02 Tj=25°C VR(V) VR(V) 0.1 1.E-03 0 5 10 15 20 25 30 35 40 45 1 10 100 3/6 STPS2545CT/CG/CFP Fig. 9: current. Forward voltage drop versus forward Fig. 10: Thermal resistance junction to ambient versus copper surface under tab (epoxy printed board FR4, Cu = 35µm). IFM(A) Rth(j-a)(°C/W) 100 80 70 Tj=125°C (Maximum values) 60 Tj=125°C (Typical values) 50 Tj=25°C (Maximum values) 10 40 30 20 10 VFM(V) 1 S(cm²) 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 5 10 15 20 25 30 35 PACKAGE MECHANICAL DATA TO-220AB REF. DIMENSIONS Millimeters A H2 Dia C L5 L7 L6 L2 F2 F1 D L9 L4 Min. Max. Min. Max. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 0.107 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.066 F2 1.14 1.70 0.044 0.066 G 4.95 5.15 0.194 0.202 G1 2.40 2.70 0.094 0.106 H2 10 10.40 0.393 0.409 L2 F M G1 E G L4 16.4 typ. 13 0.645 typ. 14 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.20 6.60 0.244 0.259 L9 3.50 3.93 0.137 0.154 M 4/6 Inches 2.6 typ. 0.102 typ. 40 STPS2545CT/CG/CFP PACKAGE MECHANICAL DATA D2PAK REF. DIMENSIONS Millimeters A E C2 L2 D L L3 A1 B2 R C B G A2 M * V2 * FLAT ZONE NO LESS THAN 2mm Inches Min. Max. Min. Max. A 4.40 4.60 0.173 0.181 A1 2.49 2.69 0.098 0.106 A2 0.03 0.23 0.001 0.009 B 0.70 0.93 0.027 0.037 B2 1.14 1.70 0.045 0.067 C 0.45 0.60 0.017 0.024 C2 1.23 1.36 0.048 0.054 D 8.95 9.35 0.352 0.368 E 10.00 10.40 0.393 0.409 G 4.88 5.28 0.192 0.208 L 15.00 15.85 0.590 0.624 L2 1.27 1.40 0.050 0.055 L3 1.40 1.75 0.055 0.069 M 2.40 3.20 0.094 0.126 R 0.40 typ. 0.016 typ. FOOTPRINT 16.90 10.30 5.08 1.30 3.70 8.90 5/6 STPS2545CT/CG/CFP PACKAGE MECHANICAL DATA TO-220FPAB REF. DIMENSIONS Millimeters Min. Max. Min. Max. A 4.4 4.6 0.173 0.181 B 2.5 2.7 0.098 0.106 D 2.5 2.75 0.098 0.108 E 0.45 0.70 0.018 0.027 F 0.75 1 0.030 0.039 F1 1.15 1.70 0.045 0.067 F2 1.15 1.70 0.045 0.067 G 4.95 5.20 0.195 0.205 G1 2.4 2.7 0.094 0.106 H 10 10.4 0.393 0.409 A B H Dia L6 L2 L7 L3 L5 D F1 L2 L4 F2 F E G1 G ■ Inches 16 Typ. 0.63 Typ. L3 28.6 30.6 1.126 1.205 L4 9.8 10.6 0.386 0.417 L5 2.9 3.6 0.114 0.142 L6 15.9 16.4 0.626 0.646 L7 9.00 9.30 0.354 0.366 Dia. 3.00 3.20 0.118 0.126 Ordering type Marking Package Weight Base qty Delivery mode STPS2545CT STPS2545CT TO-220AB 2.20 g 50 Tube STPS2545CFP STPS2545CFP TO-220FPAB 2.0 g 50 Tube 2 STPS2545CG STPS2545CG D PAK 1.48 g 50 Tube STPS2545CG-TR STPS2545CG D2PAK 1.48 g 1000 Tape & reel EPOXY MEETS UL94,V0 Information furnished is believed to be accurate and reliable. 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