STPS5L25B/B-1 ® LOW DROP POWER SCHOTTKY RECTIFIER MAIN PRODUCT CHARACTERISTICS IF(AV) 5A VRRM 25 V Tj (max) 150°C VF (max) 0.35 V 2 4 (TAB) 3 4 4 FEATURES AND BENEFITS 2 VERY LOW FORWARD VOLTAGE DROP FOR LESS POWER DISSIPATION AND REDUCED HEATSINK OPTIMIZED CONDUCTION/REVERSE LOSSES TRADE-OFF WHICH MEANS THE HIGHEST EFFICIENCY IN THE APPLICATIONS HIGH POWER SURFACE MOUNT MINIATURE PACKAGE AVALANCHE RATED 3 1 3 NC 2 1 NC DPAK STPS5L25B IPAK STPS5L25B-1 DESCRIPTION Single Schottky rectifier suited to Switched Mode Power Supplies and high frequency DC to DC converters. This device is especially intended for use as a Rectifier at the secondary of 3.3V SMPS units. ABSOLUTE RATINGS (limiting values) Symbol Parameter Value Unit VRRM Repetitive peak reverse voltage 25 V IF(RMS) RMS forward current 7 A IF(AV) Average forward current Tc = 145°C δ = 0.5 5 A IFSM Surge non repetitive forward current tp = 10 ms Sinusoidal 75 A IRRM Repetitive peak reverse current tp=2 µs square F=1kHz 1 A IRSM Non repetitive peak reverse current tp = 100 µs square 2 A Tstg Storage temperature range - 65 to + 150 °C 150 °C 10000 V/µs Tj dV/dt * : Maximum operating junction temperature * Critical rate of rise of reverse voltage dPtot 1 < thermal runaway condition for a diode on its own heatsink Rth(j−a) dTj August 1999 - Ed: 3A 1/5 STPS5L25B/B-1 THERMAL RESISTANCES Symbol Rth(j-c) Parameter Junction to case Value Unit 2.5 °C/W STATIC ELECTRICAL CHARACTERISTICS Symbol Tests Conditions IR * Reverse leakage current Tests Conditions Tj = 25°C Min. Typ. VR = VRRM Tj = 125°C VF * Forward voltage drop 55 Tj = 25°C IF = 5 A Tj = 125°C IF = 5 A Tj = 25°C IF = 10 A Tj = 125°C IF = 10 A 0.31 Max. Unit 350 µA 115 mA 0.47 V 0.35 0.59 0.41 0.50 * tp = 380 µs, δ < 2% Pulse test : To evaluate the maximum conduction losses use the following equation : P = 0.2 x IF(AV) + 0.030 IF2(RMS) Fig. 1: Average forward power dissipation versus average forward current. Fig. 2: Average forward current versus ambient temperature (δ=0.5). PF(av)(W) 6 2.5 δ = 0.1 δ = 0.2 δ = 0.5 Rth(j-a)=Rth(j-c) 5 δ = 0.05 2.0 IF(av)(A) 4 δ=1 1.5 3 1.0 2 T T 0.5 1 δ=tp/T IF(av) (A) 0.0 2/5 Rth(j-a)=70°C/W 0 1 2 3 4 5 δ=tp/T tp 6 0 0 Tamb(°C) tp 25 50 75 100 125 150 STPS5L25B/B-1 Fig. 3: Non repetitive surge peak forward current versus overload duration (maximum values). 100 Fig. 4: Relative variation of thermal impedance junction to case versus pulse duration. Zth(j-c)/Rth(j-c) IM(A) 1.0 80 0.8 60 Tc=25°C δ = 0.5 0.6 Tc=75°C 40 0.4 δ = 0.2 T Tc=100°C IM 20 0.2 t δ = 0.1 t(s) δ=0.5 0 1E-3 δ=tp/T tp(s) 1E-2 1E-1 1E+0 Fig. 5: Reverse leakage current versus reverse voltage applied (typical values). 3E+2 1E+2 Single pulse 0.0 1.0E-4 1.0E-3 1.0E-2 tp 1.0E-1 1.0E+0 Fig. 6: Junction capacitance versus reverse voltage applied (typical values). IR(mA) C(pF) 2000 Tj=150°C F=1MHz Tj=25°C 1E+1 Tj=125°C 1000 1E+0 500 1E-1 Tj=25°C 200 1E-2 VR(V) VR(V) 1E-3 0 5 10 15 20 25 Fig. 7: Forward voltage drop versus forward current (maximum values). 100.0 100 1 2 5 10 20 30 Fig. 8: Thermal resistance junction to ambient versus copper surface under tab (Epoxy printed circuit board FR4, copper thickness: 35µm). Rth(j-a) (°C/W) IFM(A) 100 Typical values Tj=150°C 80 10.0 60 Tj=125°C 40 Tj=25°C 1.0 20 VFM(V) 0.1 0.0 0.2 0.4 0.6 0.8 1.0 0 1.2 1.4 1.6 1.8 2.0 0 2 4 6 8 10 12 S(Cu) (cm²) 14 16 18 20 3/5 STPS5L25B/B-1 PACKAGE MECHANICAL DATA DPAK DIMENSIONS REF. Millimeters Min. A A1 A2 B B2 C C2 D E G H L2 L4 V2 FOOT PRINT DIMENSIONS (in millimeters) 6.7 6.7 3 3 1.6 1.6 2.3 4/5 2.3 Max 2.20 2.40 0.90 1.10 0.03 0.23 0.64 0.90 5.20 5.40 0.45 0.60 0.48 0.60 6.00 6.20 6.40 6.60 4.40 4.60 9.35 10.10 0.80 typ. 0.60 1.00 0° 8° Inches Min. Max. 0.086 0.094 0.035 0.043 0.001 0.009 0.025 0.035 0.204 0.212 0.017 0.023 0.018 0.023 0.236 0.244 0.251 0.259 0.173 0.181 0.368 0.397 0.031 typ. 0.023 0.039 0° 8° STPS5L25B/B-1 PACKAGE MECHANICAL DATA IPAK DIMENSIONS REF. A E C2 B2 L2 D H L L1 B3 B6 A1 B V1 B5 C G A3 A A1 A3 B B2 B3 B5 B6 C C2 D E G H L L1 L2 V1 Millimeters Inches Min. Typ. Max. Min. 2.2 0.9 0.7 0.64 5.2 2.4 1.1 1.3 0.9 5.4 0.85 Typ. Max. 0.086 0.035 0.027 0.025 0.204 0.3 0.45 0.48 6 6.4 4.4 15.9 9 0.8 0.8 10° 0.094 0.043 0.051 0.035 0.212 0.033 0.035 0.95 0.6 0.6 6.2 6.6 4.6 16.3 9.4 1.2 1 0.017 0.019 0.236 0.252 0.173 0.626 0.354 0.031 0.037 0.023 0.023 0.244 0.260 0.181 0.641 0.370 0.047 0.031 0.039 10° Ordering type Marking Package Weight Base qty Delivery mode STPS5L25B STPS5L25B DPAK 0.30g 75 Tube STPS15LB-TR STPS5L25B DPAK 0.30g 2500 Tape & reel STPS5L25B-1 STPS5L25B IPAK 0.35g 75 Tube 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. 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