STPS20M60C Power Schottky rectifier Features A1 ■ High current capability ■ Avalanche rated ■ Low forward voltage drop ■ High frequency operation K A2 K K A2 A2 Description A1 The STPS20M60C is a dual diode Schottky rectifier, suited for high frequency switch mode power supply. 2 K A1 D2PAK STPS20M60CG-TR I2PAK STPS20M60CR K 2 Packaged in TO-220AB, I PAK and D PAK, this device is intended to be used in notebook, game station and desktop adapters, providing in these aplications a good efficiency at both low and high load. Table 1. A2 A1 K TO-220AB STPS20M60CT Device summary Symbol Value IF(AV) 2 x 10 A VRRM 60 V VF (typ) 0.370 V Tj (max) 150 °C Electrical characteristics(a) Figure 1. I V "Forward" I 2 x IO X IF VRRM VR VAR IO X V IR VTo VF(Io) VF VF(2xIo) "Reverse" IAR a. VARM and IARM must respect the reverse safe operating area defined in Figure 12. VAR and IAR are pulse measurements (tp < 1 µs). VR, IR, VRRM and VF, are static characteristics October 2011 Doc ID 022057 Rev 1 1/10 www.st.com 10 Characteristics 1 STPS20M60C Characteristics Table 2. Absolute ratings (limiting values, per diode, at Tamb = 25 °C unless otherwise specified) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 60 V IF(RMS) Forward rms current 40 A IF(AV) Average forward current, δ = 0.5 Tc = 140 °C Per diode Tc = 135 °C Per device 10 20 A IFSM Surge non repetitive forward current tp = 10 ms sinusoidal 300 A PARM(1) Repetitive peak avalanche power Tj = 25 °C, tp = 1 µs 13600 W VARM(2) Maximum repetitive peak avalanche voltage tp < 1 µs, Tj < 150 °C, IAR < 51 A 80 V VASM(2) Maximum single-pulse peak avalanche voltage tp < 1 µs, Tj < 150 °C, IAR < 51 A 80 V -65 to +175 °C 150 °C Tstg Tj Storage temperature range Maximum operating junction temperature(3) 1. For temperature or pulse time duration deratings, please refer to Figure 4 and 5. More details regarding the avalanche energy measurements and diode validation in the avalanche are provided in the application notes AN1768 and AN2025. 2. See Figure 12 3. 1 dPtot < condition to avoid thermal runaway for a diode on its own heatsink Rth(j-a) dTj Table 3. Thermal parameters Symbol Parameter Rth(j-c) Junction to case Rth(c) Coupling Value per diode 1.5 total 0.85 0.2 When the two diodes 1 and 2 are used simultaneously: ΔTj(diode 1) = P(diode 1) x Rth(j-c)(Per diode) + P(diode 2) x Rth(c) 2/10 Doc ID 022057 Rev 1 Unit °C/W °C/W STPS20M60C Table 4. Characteristics Static electrical characteristics (per diode) Symbol Parameter IR(1) Test conditions Tj = 25 °C Reverse leakage current VR = VRRM Tj = 125 °C Tj = 25 °C VF(2) IF = 5 A Tj = 125 °C Forward voltage drop Tj = 25 °C IF = 10 A Tj = 125 °C Min. Typ. Max. Unit - 15 65 µA - 10 40 mA - 0.465 0.500 - 0.370 0.410 - 0.525 0.570 - 0.450 0.510 V 1. Pulse test: tp = 5 ms, δ < 2 % 2. Pulse test: tp = 380 µs, δ < 2 % To evaluate the conduction losses use the following equation: P = 0.375 x IF(AV) + 0.0135 x IF2(RMS) Figure 2. 8 Average forward power dissipation Figure 3. versus average forward current (per diode) PF(AV)(W) IF(AV)(A) 12 δ = 0.05 7 δ = 0.1 Rth(j-a) = Rth(j-c) δ=1 δ = 0.5 δ = 0.2 Average forward current versus ambient temperature (δ = 0.5, per diode) 10 6 8 5 6 4 3 4 2 T 2 1 δ = tp / T 0 0 1 2 Figure 4. 1 3 4 5 6 7 IF(AV)(A) tp 8 9 10 11 12 13 Normalized avalanche power derating versus pulse duration Tamb(°C) 0 0 25 Figure 5. PARM(tp) PARM(1µs) 1.2 50 75 100 125 150 Normalized avalanche power derating versus junction temperature PARM(Tj) PARM(25 °C) 1 0.1 0.8 0.6 0.4 0.01 0.2 0.001 0.01 tp(µs) 0.1 1 10 100 1000 0 25 Doc ID 022057 Rev 1 Tj(°C) 50 75 100 125 150 3/10 Characteristics Figure 6. 200 STPS20M60C Non repetitive surge peak forward current versus overload duration (maximum values, per diode) IM(A) Figure 7. 1.0 180 0.9 160 0.8 140 0.7 120 0.5 Tc = 75 °C 80 60 40 Zth(j-c)/Rth(j-c) 0.6 Tc = 25 °C 100 Relative thermal impedance junction to case versus pulse duration 0.4 0.3 Tc = 125 °C Single pulse 0.2 IM 20 t δ = 0.5 0 1.E-03 1.E-02 Figure 8. 0.1 t(s) 1.E-01 1.E+00 Reverse leakage current versus reverse voltage applied (typical values, per diode) 1.E-03 Figure 9. IR(mA) 1.E+02 tp(s) 0.0 1.E-04 10000 1.E-02 1.E-01 Junction capacitance versus reverse voltage applied (typical values, per diode) C(pF) F = 1 MHz Vosc = 30 mVRMS Tj = 25 °C Tj = 150 °C 1.E+01 1.E+00 Tj = 125 °C Tj = 100 °C 1.E+00 1000 Tj = 75 °C 1.E-01 Tj = 50 °C 1.E-02 Tj = 25 °C VR(V) 1.E-03 0 10 20 30 40 50 Figure 10. Forward voltage drop versus forward current (per diode) 100.0 VR(V) 100 60 1 10 Figure 11. Thermal resistance junction to ambient versus copper surface under tab IFM(A) 80 Rth(j-a)(°C/W) epoxy printed board copper thickness = 35 µm Tj = 125 °C (Maximum values) 70 2 60 10.0 100 Tj = 125 °C (Typical values) D PAK 50 Tj = 25 °C (Maximum values) 40 30 1.0 20 10 0.1 0.0 4/10 VFM(V) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 2 SCu(cm ) 0 0 Doc ID 022057 Rev 1 5 10 15 20 25 30 35 40 STPS20M60C Characteristics Figure 12. Reverse safe operating area (tp < 1 µs, Tj < 150 °C) 55.0 Iarm (A) Iarm (Varm) 150 °C, 1µs 50.0 45.0 m 40.0 35.0 Varm (V) 30.0 80 85 90 95 100 Doc ID 022057 Rev 1 105 110 115 120 5/10 Package information 2 STPS20M60C Package information ● Epoxy meets UL94, V0 ● Cooling method: by conduction (C) ● Recommended torque value: 0.4 to 0.6 N·m In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 5. TO-220AB dimensions Dimensions Ref. Dia 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 C L5 L7 L6 L2 F2 D L9 L4 L2 F M G1 16.4 Typ. 0.645 Typ. L4 13 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 E G M Dia. 6/10 Inches A H2 F1 Millimeters Doc ID 022057 Rev 1 2.6 Typ. 3.75 3.85 0.102 Typ. 0.147 0.151 STPS20M60C Package information Table 6. D2PAK dimensions Dimensions Ref. Millimeters 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 A E C2 L2 D L L3 A1 B2 R C B G A2 M * V2 * FLAT ZONE NO LESS THAN 2mm R 0.40 typ. V2 0° 0.016 typ. 8° 0° 8° Figure 13. D2PAK footprint (dimensions in mm) 16.90 10.30 5.08 1.30 8.90 Doc ID 022057 Rev 1 3.70 7/10 Package information Table 7. STPS20M60C I2PAK dimensions Dimensions Ref. Millimeters Inches Min. Max. Min. Max. A 4.40 4.60 0.173 0.181 A1 2.40 2.72 0.094 0.107 b 0.61 0.88 0.024 0.035 b1 1.14 1.70 0.044 0.067 c 0.49 0.70 0.019 0.028 c2 1.23 1.32 0.048 0.052 D 8.95 9.35 0.352 0.368 e 2.40 2.70 0.094 0.106 e1 4.95 5.15 0.195 0.203 E 10 10.40 0.394 0.409 L 13 14 0.512 0.551 L1 3.50 3.93 0.138 0.155 L2 1.27 1.40 0.050 0.055 A E c2 L2 D L1 A1 b1 L b c e e1 8/10 Doc ID 022057 Rev 1 STPS20M60C 3 Ordering information Ordering information Table 8. Ordering information Order code STPS20M60CT STPS20M60CR STPS20M60CG-TR 4 Marking STPS20M60CT STPS20M60CR STPS20M60CG Package Weight TO-220AB Base qty Delivery mode 2.2 g 50 Tube 2 1.49 g 50 Tube 2 1.48 g 1000 Tape and reel I PAK D PAK Revision history Table 9. Revision history Date Revision 14-Oct-2011 1 Changes Initial release. Doc ID 022057 Rev 1 9/10 STPS20M60C Please Read Carefully: Information in this document is provided solely in connection with ST products. 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