STPS3L40-Y Automotive power Schottky rectifier Features ■ Negligible switching losses ■ Low thermal resistance ■ Low forward voltage drop ■ Avalanche capability specified ■ ECOPACK®2 compliant component ■ AEC-Q101 qualified A K SMC STPS3L40SY Description Table 1. Schottky rectifier suited for switched mode power supplies and high frequency DC to DC converters. Packaged in SMC, this device is intended for use in DC/DC chargers for automotive application. March 2011 Doc ID 018562 Rev 1 Device summary Symbol Value IF(AV) 3A VRRM 40 V Tj (max) 150 °C VF(max) 0.44 V 1/7 www.st.com 7 Characteristics 1 STPS3L40-Y Characteristics Table 2. Absolute ratings (limiting values) Symbol Parameter 40 V Repetitive peak reverse voltage IF(AV) Average forward current TL = 120 °C δ = 0.5 3 A IFSM Surge non repetitive forward current tp = 10 ms sinusoidal 75 A PARM Repetitive peak avalanche power tp = 1 µs Tj = 25 °C 1300 W -65 to + 175 °C -40 to +150 °C Storage temperature range (1) Tj Operating junction temperature range 1 dPtot < condition to avoid thermal runaway for a diode on its own heatsink Rth(j-a) dTj Table 3. Thermal resistance Symbol Rth(j-l) Table 4. Symbol IR(1) Parameter VF(1) Value Unit 18 °C/W Junction to lead Static electrical characteristics Parameter Test conditions Reverse leakage current Tj = 25 °C Tj = 125 °C Tj = 25 °C Forward voltage drop Tj = 125 °C Tj = 25 °C Tj = 125 °C VR = VRRM 16 Max. Unit 100 µA 40 mA 0.40 0.44 V 0.62 IF = 6 A To evaluate the conduction losses use the following equation: P = 0.30 x IF(AV) + 0.047 IF2(RMS) Doc ID 018562 Rev 1 Typ. 0.5 IF = 3 A 1. Pulse test: tp = 380 µs, δ < 2% 2/7 Unit VRRM Tstg 1. Value 0.52 0.58 STPS3L40-Y Figure 1. Characteristics Average forward power dissipation Figure 2. versus average forward current Average forward current versus ambient temperature (δ = 0.5) - SMC IF(AV)(A) PF(AV)(W) 3.5 2.0 δ = 0.2 δ = 0.1 δ = 0.5 Rth(j-a)=Rth(j-l) 1.6 SMC 3.0 δ = 0.05 δ=1 2.5 Rth(j-a)=75°C/W 1.2 2.0 1.5 0.8 1.0 T T 0.4 0.5 IF(AV)(A) δ=tp/T 0.0 0.0 0.5 1.0 Figure 3. 1.5 2.0 2.5 3.0 δ=tp/T tp 0.0 3.5 4.0 Non repetitive surge peak forward current versus overload duration (maximum values) 0 25 Figure 4. IM(A) Tamb(°C) tp 50 75 100 125 150 Normalized avalanche power derating versus pulse duration PARM(tp) PARM(1µs) 14 SMC 1 12 10 Ta=25°C 0.1 8 Ta=75°C 6 0.01 4 Ta=125°C IM 2 t t(s) δ=0.5 1.E-03 Figure 5. 1.E-02 tp(µs) 0.001 0 1.E-01 1.E+00 Normalized avalanche power derating versus junction temperature 0.01 0.1 Figure 6. 1 10 100 1000 Relative variation of thermal impedance junction to ambient versus pulse duration Zth(j-c)/Rth(j-c) PARM(Tj) PARM(25°C) 1.0 0.9 1.2 SMC 0.8 1 0.7 0.8 0.6 0.5 0.6 0.4 0.4 0.3 T 0.2 0.2 Single pulse Tj(°C) 0.1 0 25 50 75 100 125 150 tp(s) δ=tp/T 0.0 1.E-02 Doc ID 018562 Rev 1 1.E-01 1.E+00 1.E+01 1.E+02 tp 1.E+03 3/7 Characteristics Figure 7. STPS3L40-Y Reverse leakage current versus reverse voltage applied (typical values) Figure 8. IR(mA) Junction capacitance versus reverse voltage applied (typical values) C(pF) 1.E+02 1000 F=1MHz VOSC=30mVRMS Tj=25°C Tj=125°C 1.E+01 Tj=100°C 1.E+00 100 1.E-01 Tj=25°C 1.E-02 VR(V) VR(V) 10 1.E-03 0 5 Figure 9. 100.00 10 15 20 25 30 35 1 40 Forward voltage drop versus forward current 10 100 Figure 10. Thermal resistance junction to ambient versus copper surface under each lead Rth(j-a)(°C/W) IFM(A) 110 epoxy printed board FR4, copper thickness = 35 µm 100 90 10.00 80 70 Tj=125 °C (Maximum values) 1.00 60 Tj=125 °C (Typical values) 50 40 Tj=25°C (Maximum values) 0.10 30 20 VFM(V) 10 0.01 0.0 4/7 SCU(cm²) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.0 0.5 Doc ID 018562 Rev 1 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 STPS3L40-Y 2 Package information Package information ● Epoxy meets UL94,V0 ● Lead-free packages 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. SMC package dimensions Dimensions Ref Millimeters Inches E1 Min. Max. Min. Max. A1 1.90 2.45 0.075 0.096 A2 0.05 0.20 0.002 0.008 b 2.90 3.2 0.114 0.126 c 0.15 0.40 0.006 0.016 D 5.55 6.25 0.218 0.246 E 7.75 8.15 0.305 0.321 E1 6.60 7.15 0.260 0.281 E2 4.40 4.70 0.173 0.185 L 0.75 1.40 0.030 0.063 D E A1 C A2 E2 L b Figure 11. SMC footprint dimensions in mm (inches) 1.54 (0.061) 5.11 (0.201) 1.54 (0.061) 3.14 (0.124) 8.19 (0.322) Doc ID 018562 Rev 1 5/7 Ordering information 3 Ordering information Table 6. 4 Ordering information Order code Marking Package Weight Base qty Delivery mode STPS3L40SY S3L4Y SMC 0.24 g 2500 Tape and reel Revision history Table 7. 6/7 STPS3L40-Y Document revision history Date Revision 10-Mar-2011 1 Changes First issue. 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