STPS2L30 Low drop power Schottky rectifier Features A ■ Low cost device with low drop forward voltage for less power dissipation ■ Optimized conduction/reverse losses trade-off which lead to the highest yield in the applications ■ Surface mount miniature packages ■ Avalanche capability specified K SMA STPS2L30A Description A Single Schottky rectifier suited to switched mode power supplies and high frequency DC to DC converters, freewheel diode and integrated circuit latch up protection. Packaged in SMA and low profile SMA and SMB, this device is especially intended for use in parallel with MOSFETs in synchronous rectification. April 2008 A K K SMB flat STPS2L30UF Table 1. Rev 6 SMA flat STPS2L30AF Device summary IF(AV) 2A VRRM 30 V Tj (max) 150 °C VF(max) 0.375 V 1/10 www.st.com 10 Characteristics STPS2L30 1 Characteristics Table 2. Absolute ratings (limiting values) Symbol VRRM Parameter V 2 A TL = 130 °C δ = 0.5 Average forward current SMA TL = 120 °C δ = 0.5 SMB flat TL = 135 °C δ = 0.5 Surge non repetitive forward current tp =10 ms sinusoidal 75 A PARM Repetitive peak avalanche power tp = 1 µs Tj = 25 °C 1500 W -65 to + 150 °C 150 °C Value Unit Storage temperature range Operating junction temperature (1) Tj dPtot --------------dTj < Table 3. 1 -------------------------Rth ( j – a ) condition to avoid thermal runaway for a diode on its own heatsink Thermal resistance Symbol Rth(j-l) Table 4. Symbol IR(1) Parameter Junction to lead VF(1) SMA flat 20 SMA 30 SMB flat 15 °C/W Static electrical characteristics Parameter Reverse leakage current Test Conditions Tj = 25 °C Tj = 100 °C Tj = 25 °C Forward voltage drop Tj = 125 °C Tj = 25 °C Tj = 125 °C VR = VRRM Min. Typ. 6 Max. Unit 200 µA 15 mA 0.45 IF = 2 A 0.325 0.375 V 0.53 IF = 4 A 1. Pulse test: tp = 380 µs, δ < 2% To evaluate the conduction losses use the following equation: P = 0.24 x IF(AV) + 0.068 IF2(RMS) 2/10 30 IFSM Tstg 1. Unit Repetitive peak reverse voltage SMA flat IF(AV) Value 0.43 0.51 STPS2L30 Characteristics Figure 1. Average forward power dissipation Figure 2. versus average forward current Average forward current versus ambient temperature (δ = 0.5) SMA IF(AV)(A) PF(AV)(W) 2.2 1.2 1.1 δ = 0.05 1.0 δ = 0.1 Rth(j-a)=Rth(j-l) δ = 0.2 δ = 0.5 SMA 2.0 1.8 0.9 1.6 0.8 δ=1 Rth(j-a)=120°C/W 1.4 0.7 1.2 0.6 1.0 0.5 0.8 0.4 0.6 0.3 T T 0.4 0.2 IF(AV)(A) 0.1 0.0 0.2 0.4 Figure 3. 0.6 0.8 1.0 1.2 1.4 0.2 δ=tp/T 0.0 1.6 1.8 2.0 0.0 2.2 2.4 2.6 Average forward current versus ambient temperature (δ = 0.5) SMB flat 0 2.2 Rth(j-a)=Rth(j-l) 2.0 2.0 1.8 1.8 SMB flat 1.6 Tamb(°C) tp 25 Figure 4. IF(AV)(A) 2.2 δ=tp/T tp 50 75 100 125 150 Average forward current versus ambient temperature (δ = 0.5) SMA flat IF(AV)(A) SMA-Flat Rth(j-a)=Rth(j-l) 1.6 Rth(j-a)=120°C/W 1.4 1.4 1.2 1.2 1.0 1.0 0.8 0.8 0.6 0.6 T Rth(j-a)=200 °C/W T 0.4 0.4 0.2 δ=tp/T 0.0 0 δ=tp/T 0.2 Tamb(°C) tp Tamb(°C) tp 0.0 25 Figure 5. 50 75 100 125 0 150 Non repetitive surge peak forward current versus overload duration (maximum values) SMA 25 Figure 6. IM(A) 50 75 100 125 150 Non repetitive surge peak forward current versus overload duration (maximum values) SMB flat IM(A) 10 30 SMB flat (non exposed pad) SMA 9 25 8 7 20 Ta=25°C 6 5 TL=25°C 15 Ta=75°C 4 TL=75°C 10 3 Ta=125°C 2 1 IM t(s) δ=0.5 IM t t(s) δ=0.5 0 1.E-03 TL=125°C 5 t 0 1.E-02 1.E-01 1.E+00 1.E-03 1.E-02 1.E-01 1.E+00 3/10 Characteristics Figure 7. STPS2L30 Non repetitive surge peak forward current versus overload duration (maximum values) SMA flat Figure 8. IM(A) Normalized avalanche power derating versus pulse duration PARM(tp) PARM(1µs) 8 SMA-Flat 1 7 6 5 0.1 Ta=25 °C 4 Ta=75 °C 3 0.01 2 Ta=125 °C IM 1 t(s) t δ =0.5 0 1.E-03 1.E-02 Figure 9. tp(µs) 0.001 1.E-01 0.01 1.E+00 Normalized avalanche power derating versus junction temperature 0.1 1 10 100 1000 Figure 10. Relative variation of thermal impedance, junction to ambient, versus pulse duration - SMA Zth(j-a)/Rth(j-a) PARM(Tj) PARM(25°C) 1.0 SMA 0.9 1.2 0.8 1 0.7 0.8 0.6 0.5 0.6 0.4 0.4 0.3 T 0.2 0.2 Tj(°C) 0.1 0 25 50 75 100 125 150 Single pulse 1.E-02 Figure 11. Relative variation of thermal impedance junction to lead versus pulse duration - SMB flat 1.E+00 1.E+01 1.E+02 1.E+03 Zth(j-a)/Rth(j-a) SMA-Flat SMB flat 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.2 0.2 Single pulse 0.1 tp(s) 1.E-04 Single pulse tp(s) 0.0 0.0 4/10 1.E-01 tp 1.0 0.8 0.1 δ=tp/T Figure 12. Relative variation of thermal impedance junction to ambient versus pulse duration - SMA flat Zth(j-l)/Rth(j-l) 1.0 0.9 tp(s) 0.0 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03 STPS2L30 Characteristics Figure 13. Reverse leakage current versus reverse voltage applied (typical values) Figure 14. Junction capacitance versus reverse voltage applied (typical values) IR(mA) C(pF) 1.E+02 1000 F=1MHz VOSC=30mVRMS Tj=25°C Tj=150°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 10 15 20 25 Figure 15. Forward voltage drop versus forward current (high level) 10.0 1 30 10 100 Figure 16. Forward voltage drop versus forward current ( low level) IFM(A) IFM(A) 3.0 2.5 Tj=125 °C (maximum values) Tj=125 °C (maximum values) 2.0 1.5 1.0 Tj=125 °C (typical values) Tj=125 °C (typical values) 1.0 Tj=25 °C (maximum values) Tj=25 °C (maximum values) 0.5 VFM(V) VFM(V) 0.0 0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.0 0.1 Figure 18. Figure 17. Thermal resistance junction to ambient versus copper surface under each lead (epoxy printed board FR4, copper thickness = 35 µm) (SMA, SMB flat) Rth(j-a)(°C/W) 0.2 0.3 0.4 0.5 0.6 Thermal resistance junction to ambient versus copper surface under each lead (epoxy printed board FR4, copper thickness = 35 µm) (SMA flat) Rth(j-a)(°C/W) 130 200 120 SMA-Flat 180 110 160 100 140 90 SMA 80 120 70 100 60 80 SMB flat) 50 40 60 30 40 20 10 20 SCU(Cm²) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 SCU(Cm²) 0 0 3.5 4.0 4.5 5.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5/10 Package Information 2 STPS2L30 Package Information ● Epoxy meets UL94, V0 In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at www.st.com. Table 5. SMA dimensions Dimensions Ref. Millimeters Inches E1 D E A1 A2 C L Min. Max. Min. Max. A1 1.90 2.45 0.075 0.094 A2 0.05 0.20 0.002 0.008 b 1.25 1.65 0.049 0.065 c 0.15 0.40 0.006 0.016 D 2.25 2.90 0.089 0.114 E 4.80 5.35 0.189 0.211 E1 3.95 4.60 0.156 0.181 L 0.75 1.50 0.030 0.059 b Figure 19. SMA footprint (dimensions in mm) 1.4 2.63 1.4 1.64 5.43 6/10 STPS2L30 Package Information Table 6. SMA flat (non exposed pad) dimensions Dimensions Ref. Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 0.90 1.10 0.035 0.043 b 1.25 1.65 0.049 0.065 c 0.15 0.40 0.006 0.016 D 2.25 2.95 0.088 0.116 E 4.80 5.60 0.189 0.220 E1 3.95 4.60 0.156 0.181 L 0.75 1.50 0.030 0.059 A c D L 2x L1 2x E E1 L L2 2x b L1 0.50 0.019 L2 0.50 0.019 Figure 20. SMA flat (non exposed pad) footprint dimensions 5.52 (0.217) 1.52 (0.060) 1.20 (0.047) 3.12 (0.123) 1.20 (0.047) millimeters (inches) 7/10 Package Information Table 7. STPS2L30 SMB flat dimensions Dimensions Ref. D L L2 E E1 L L1 b Min. A 0.90 1.10 0.035 0.043 b(1) 1.95 2.20 0.077 0.087 (1) 0.15 0.40 0.006 0.016 D 3.30 3.95 0.130 0.156 E 5.10 5.60 0.200 0.220 E1 4.05 4.60 0.189 0.181 L 0.75 1.50 0.029 0.059 c 0.40 0.016 L2 0.60 0.024 Figure 21. SMB flat footprint (dimensions in mm) 5.84 2.07 8/10 3.44 Typ. L1 1. Applies to plated leads 1.20 Inches Min. Typ. Max. A c Millimeters 1.20 Max. STPS2L30 3 Ordering information Ordering information Table 8. 4 Ordering information Order code Marking Package Weight Base qty Delivery mode STPS2L30A G30 SMA 0.068 g 5000 Tape and reel STPS2L30UF FG30 SMB flat 0.050 g 5000 Tape and reel STPS2L30AF F30 SMA flat 0.035 g 10000 Tape and reel Revision history Table 9. Document revision history Date Revision Changes Jul-2003 3A Aug-2004 4 SMA package dimensions update. Reference A1 max. changed from 2.70mm (0.106inc.) to 2.03mm (0.080). 31-Jan-2007 5 Reformatted to current standard. Added ECOPACK statement. Added SMB flat package. 23-Apr-2008 6 Reformatted to current standards. Added SMA flat package. Last update. 9/10 STPS2L30 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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