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| (R) STPS0520Z SCHOTTKY RECTIFIERS MAIN PRODUCT CHARACTERISTICS IF(AV) VRRM VF (max) 0.5 A 20 V 0.32 V FEATURES AND BENEFITS s s s VERY SMALL CONDUCTION LOSSES NEGLIGIBLE SWITCHING LOSSES EXTREMELY FAST SWITCHING DESCRIPTION Single Schottky rectifier suited for switch mode power supplies and high frequency DC to DC converters. Packaged in SOD-123, this device is intended for use in low voltage, high frequency inverters, free wheeling and polarity protection applications. Due to the small size of the package this device fits GSM and PCMCIA requirements. SOD-123 ABSOLUTE RATINGS (limiting values) Symbol VRRM IF(RMS) IF(AV) IFSM dV/dt Tstg Tj TL *: RMS forward current Average forward current =0.5 Surge non repetitive forward current Critical rate of rise of reverse voltage Storage temperature range Maximum operating junction temperature * Maximum temperature for soldering during 10s Ta=25C tp=10ms sinusoidal Parameter Repetitive peak reverse voltage Value 20 2 0.5 5.5 10000 - 65 to + 125 125 260 Unit V A A A V/s C C C dPtot 1 thermal runaway condition for a diode on its own heatsink < dTj Rth( j - a ) January 2002 - Ed : 2B 1/5 STPS0520Z THERMAL RESISTANCE Symbol Rth (j-a) Junction to ambient Parameter Value 430 (*) 210 (**) Unit C/W (*) Mounted on epoxy board with recommended Pad Layout. (**) Mounted on epoxy board with 50mm2 copper area. STATIC ELECTRICAL CHARACTERISTICS Value Symbol Parameter Tests conditions STPS0520Z typ. IR * Reverse leakage current Tj = 25C Tj = 100C Tj = 25C Tj = 100C VF ** Forward voltage drop Tj = 25C Tj = 100C Tj = 25C Tj=100C Pulse test : * tp = 5 ms, < 2% ** tp = 380 s, < 2% Unit max. 60 A mA A mA V VR = 10 V 2.5 VR = VRRM 4.3 IF = 0.1 A 0.18 IF = 0.5 A 0.29 5 150 8 0.3 0.22 0.385 0.32 To evaluate the maximum conduction losses use the following equation : P = 0.23 x IF(AV) + 0.18 x IF2(RMS) 2/5 STPS0520Z Fig. 1: Average forward power dissipation versus average forward current PF(av)(W) 0.25 0.20 =1 = 0.05 = 0.1 = 0.2 = 0.5 Fig. 2: Average forward current versus ambient temperature ( = 0.5) IF(av)(A) 0.6 0.5 0.4 0.3 0.15 0.10 T 0.2 0.1 T 0.05 IF(av) (A) 0.00 0.0 0.1 0.2 0.3 0.4 =tp/T tp 0.5 0.6 0.0 =tp/T tp Tamb(C) 50 75 100 125 0 25 Fig. 3: Non repetitive surge peak forward current versus overload duration (maximum values). Fig. 4: Relative variation of thermal impedance junction to ambient versus pulse duration (Epoxy printed circuit board FR4 with recommended pad layout). Zth(j-a)/Rth(j-a) 1E+0 = 0.5 = 0.2 IM(A) 3.0 2.5 Ta=25C 2.0 1.5 1.0 0.5 IM t Ta=50C Ta=75C 1E-1 = 0.1 1E-2 Single pulse T =0.5 t(s) 1E-2 1E-1 1E+0 tp(s) 1E-3 1E-3 1E-2 1E-1 1E+0 0.0 1E-3 =tp/T tp 1E+1 1E+2 Fig. 5: Reverse leakage current versus reverse voltage applied (typical values). Fig. 6: Relative variation of reverse leakage current versus junction temperature (typical values). IR(mA) 2E+1 1E+1 1E+0 Tj=70C Tj=125C Tj=100C IR[Tj] / IR[Tj=25C] 1E+3 VR=VRRM 1E+2 1E+1 Tj=25C 1E-1 1E-2 VR(V) 1E-3 0 2 4 6 8 10 12 14 16 18 20 1E+0 Tj(C) 1E-1 0 25 50 75 100 125 3/5 STPS0520Z Fig. 7: Junction capacitance versus reverse voltage applied (typical values). Fig. 8-1: Forward voltage drop versus forward current (maximum values, low level) C(pF) 200 F=1MHz Tj=25C IFM(A) 0.5 0.4 0.3 Tj=100C Tj=25C Tj=100C Typical values 100 50 0.2 20 VR(V) 10 1 2 5 10 20 0.1 VFM(V) 0.0 0.0 0.1 0.2 0.3 0.4 0.5 Fig. 8-2: Forward voltage drop versus forward current (maximum values, high level) Fig. 9: Variation of thermal resistance junction to ambient versus copper surface under each lead (Printed circuit board FR4, e(Cu) = 35m). Rth(j-a) (C/W) 350 P=0.25W IFM(A) 5.0 Tj=100C Typical values 300 250 1.0 Tj=100C Tj=25C 200 150 VFM(V) 0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 100 0 20 40 S(mm) 60 80 100 4/5 STPS0520Z PACKAGE MECHANICAL DATA SOD-123 H b E DIMENSIONS A2 A1 REF. Millimeters Min. Max. 1.45 0 0.85 0.1 1.35 0 Inches Min. Max. 0.057 0.004 0.053 0.033 A A1 D A A2 b c D E G H 0.55 Typ. 0.15 Typ. 2.55 1.4 0.25 3.55 3.95 2.85 1.7 0.022 Typ. 0.039 Typ. 0.1 0.055 0.01 0.14 0.156 0.112 0.067 c G FOOTPRINT (in millimeters) 4.45 0.65 0.97 2.51 0.97 MARKING Type STPS0520Z STPS0520Z10K s Marking Z52 Z52 Package SOD-123 SOD-123 Weight 0.01g. 0.01 g Base qty 3000 10000 Delivery mode Tape & reel Tape & reel s Epoxy meets UL94, V0. Band indicates cathode. 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. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 5/5 |
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