1/8 stps1545ct/cf/cg/cfp/cr ? august 2002 - ed: 4f power schottky rectifier i f(av) 2 x 7.5 a v rrm 45 v tj (max) 175 c v f (max) 0.57 v main product characteristics n very small conduction losses n negligible switching losses n extremely fast switching n insulated package: isowatt220ab, to-220fpab insulating voltage = 2000v dc capacitance = 12pf features and benefits dual center tap schottky rectifier suited for switchmode power supply and high frequency dc to dc converters. packaged either in to-220ab, isowatt220ab, to-220fpab, d 2 pak or i 2 pak, this device is es- pecially intended for use in low voltage, high fre- quency inverters, free wheeling and polarity protection applications. description d 2 pak stps1545cg a2 a1 k a1 a2 k to-220ab stps1545ct a1 a2 k isowatt220ab stps1545cf a1 a2 k a1 a2 k to-220fpab STPS1545CFP a1 a2 k i 2 pak stps1545cr
stps1545ct/cf/cg/cfp/cr 2/8 symbol parameter value unit r th (j-c) junction to case to-220ab / d 2 pak/i 2 pak per diode total 3.0 1.7 c/w isowatt220ab / to-220fpab per diode total 5.5 4.2 r th (c) to-220ab / d 2 pak/i 2 pak coupling 0.35 isowatt220ab / to-220fpab 2.9 when the diodes 1 and 2 are used simultaneously: d tj (diode 1 ) = p (diode1) x r th(j-c) (per diode ) + p (diode 2) x r th(c) thermal resistances symbol parameter tests conditions min. typ. max. unit i r * reverse leakage current tj = 25c v r =v rrm 100 m a tj = 125c 5 15 ma v f * forward voltage drop tj = 125 ci f = 7.5 a 0.5 0.57 v tj=25 ci f = 15 a 0.84 tj = 125c i f = 15 a 0.65 0.72 static electrical characteristics (per diode) pulse test : * tp = 380 m s, d <2% to evaluate the conduction losses use the following equation : p=0.42xi f(av) + 0.020 i f 2 (rms) symbol parameter value unit v rrm repetitive peak reverse voltage 45 v i f(rms) rms forward current 20 a i f(av) average forward current d = 0.5 to-220ab / d 2 pak i 2 pak tc = 157c per diode 7.5 a isowatt220ab to-220fpab tc = 130c per device 15 i fsm surge non repetitive forward current tp = 10 ms sinusoidal 150 a i rrm repetitive peak reverse current tp = 2 m s square f = 1khz 1a i rsm non repetitive peak reverse current tp = 100 m s square 2a tstg storage temperature range -65 to +175 c tj maximum operating junction temperature * 175 c dv/dt critical rate of rise of reverse voltage 10000 v/ m s absolute ratings (limiting values, per diode) *: dptot dtj rth j a < - 1 () thermal runaway condition for a diode on its own heatsink
stps1545ct/cf/cg/cfp/cr 3/8 1e-3 1e-2 1e-1 1e+0 0 20 40 60 80 100 120 t(s) im(a) tc=100c tc=50c tc=150c i m t d =0.5 fig. 3-1: non repetitive surge peak forward current versus overload duration (maximum values, per diode) (to-220ab and d 2 pak). 1e-4 1e-3 1e-2 1e-1 1e+0 0.0 0.2 0.4 0.6 0.8 1.0 tp(s) zth(j-c)/rth(j-c) t d =tp/t tp d = 0.5 d = 0.2 d = 0.1 single pulse fig. 4-1: relative variation of thermal transient impedance junction to case versus pulse duration (per diode) (to-220ab and d 2 pak). 0 25 50 75 100 125 150 175 0 1 2 3 4 5 6 7 8 9 tamb(c) if(av)(a) rth(j-a)=15c/w rth(j-a)=rth(j-c) to-220ab d2pak isowatt220ab to-220fpab rth(j-a)=40c/w t d =tp/t tp fig. 2: average current versus ambient temperature ( d = 0.5, per diode). 1e-3 1e-2 1e-1 1e+0 0 10 20 30 40 50 60 70 80 t(s) im(a) tc=100c tc=50c tc=150c i m t d =0.5 fig. 3-2: non repetitive surge peak forward current versus overload duration (maximum values, per diode) (isowatt220ab, to-220fpab). 1e-3 1e-2 1e-1 1e+0 1e+1 0.0 0.2 0.4 0.6 0.8 1.0 tp(s) zth(j-c)/rth(j-c) t d =tp/t tp single pulse d = 0.1 d = 0.2 d = 0.5 fig. 4-2: relative variation of thermal transient impedance junction to case versus pulse duration (per diode) (isowatt220ab, to-220fpab). 012345678910 0 1 2 3 4 5 6 if(av) (a) pf(av)(w) t d =tp/t tp d = 1 d = 0.5 d = 0.2 d = 0.1 d = 0.05 fig. 1: average forward power dissipation versus average forward current (per diode).
stps1545ct/cf/cg/cfp/cr 4/8 0 5 10 15 20 25 30 35 40 45 1e-1 1e+0 1e+1 1e+2 1e+3 1e+4 5e+4 vr(v) ir(a) tj=150c tj=100c tj=125c tj=75c tj=50c tj=25c fig. 5: reverse leakage current versus reverse voltage applied (typical values, per diode). 12 51020 50 100 200 500 1000 vr(v) c(pf) f=1mhz tj=25c fig. 6: junction capacitance versus reverse voltage applied (typical values, per diode). 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.1 1.0 10.0 100.0 vfm(v) ifm(a) tj=25c tj=125c tj=125c typical values fig. 7: forward voltage drop versus forward current (maximum values, per diode). 0 2 4 6 8 101214161820 0 10 20 30 40 50 60 70 80 s(cu) (cm2) rth(j-a) (c/w) fig. 8: thermal resistance junction to ambient versus copper surface under tab (epoxy printed circuit board, copper thickness: 35 m m).
stps1545ct/cf/cg/cfp/cr 5/8 package mechanical data d 2 pak a c2 d r a2 m v2 c a1 g l l3 l2 b b2 e * * flat zone no less than 2mm ref. dimensions 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 r 0.40 typ. 0.016 typ. v2 0 8 0 8 8.90 3.70 1.30 5.08 16.90 10.30 footprint dimensions (in millimeters)
stps1545ct/cf/cg/cfp/cr 6/8 package mechanical data to-220ab m h2 l2 a c l4 f1(x2) d f2 f g l9 l6 l7 l5 g1 e dia optional ref. dimensions millimeters inches min. max. min. max. a 4.30 4.60 0.169 0.181 c 1.22 1.32 0.048 0.052 d 2.40 2.72 0.094 0.107 e 0.33 0.70 0.013 0.028 f 0.61 0.93 0.024 0.037 f1 1.14 1.70 0.045 0.067 f2 1.14 1.70 0.045 0.067 g 4.95 5.15 0.195 0.202 g1 2.40 2.70 0.094 0.106 h2 10.00 10.40 0.394 0.409 l2 16.00 typ. 0.630 typ. l4 13.00 14.00 0.512 0.551 l5 2.65 2.95 0.104 0.116 l6 14.80 15.75 0.583 0.620 l7 6.20 6.60 0.244 0.260 l9 3.40 3.94 0.134 0.155 m 2.60 typ. 0.102 typ. dia. 3.75 3.89 0.148 0.153 package mechanical data to-220fpab h l3 l2 l4 l6 g g1 f f1 l5 d e l7 a b dia f2 ref. dimensions millimeters inches min. max. min. max. a 4.4 4.6 0.173 0.181 b 2.5 2.7 0.098 0.106 d 2.5 2.75 0.098 0.108 e 0.45 0.70 0.018 0.027 f 0.75 1 0.030 0.039 f1 1.15 1.70 0.045 0.067 f2 1.15 1.70 0.045 0.067 g 4.95 5.20 0.195 0.205 g1 2.4 2.7 0.094 0.106 h 10 10.4 0.393 0.409 l2 16 typ. 0.63 typ. l3 28.6 30.6 1.126 1.205 l4 9.8 10.6 0.386 0.417 l5 2.9 3.6 0.114 0.142 l6 15.9 16.4 0.626 0.646 l7 9.00 9.30 0.354 0.366 dia. 3.00 3.20 0.118 0.126
stps1545ct/cf/cg/cfp/cr 7/8 package mechanical data isowatt220ab ref. dimensions millimeters inches min. max. min. max. a 4.40 4.60 0.173 0.181 b 2.50 2.70 0.098 0.106 d 2.50 2.75 0.098 0.108 e 0.40 0.70 0.016 0.028 f 0.75 1.00 0.030 0.039 f1 1.15 1.70 0.045 0.067 f2 1.15 1.70 0.045 0.067 g 4.95 5.20 0.195 0.205 g1 2.40 2.70 0.094 0.106 h 10.00 10.40 0.394 0.409 l2 16.00 typ. 0.630 typ. l3 28.60 30.60 1.125 1.205 l4 9.80 10.60 0.386 0.417 l6 15.90 16.40 0.626 0.646 l7 9.00 9.30 0.354 0.366 diam 3.00 3.20 0.118 0.126
stps1545ct/cf/cg/cfp/cr 8/8 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 ap- proval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics ? 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 type marking package weight base qty delivery mode stps1545ct stps1545ct to-220ab 2.23 g. 50 tube stps1545cf stps1545cf isowatt220ab 2.08 g. 50 tube STPS1545CFP STPS1545CFP to-220fpab 2.0 g 50 tube stps1545cg stps1545cg d 2 pak 1.48 g. 50 tube stps1545cg-tr stps1545cg d 2 pak 1.48 g. 1000 tape & reel stps1545cr stps1545cr i 2 pak 1.49 g 50 tube n cooling method: by conduction (c) n expoxy meets ul94,v0 package mechanical data i 2 pak e d l l1 l2 b1 b b2 e a c2 a1 c ref. dimensions millimeters inches min. max. min. max. a 4.40 4.60 0.173 0.181 a1 2.49 2.69 0.098 0.106 b 0.70 0.93 0.028 0.037 b1 1.14 1.17 0.044 0.046 b2 1.14 1.17 0.044 0.046 c 0.45 0.60 0.018 0.024 c2 1.23 1.36 0.048 0.054 d 8.95 9.35 0.352 0.368 e 2.40 2.70 0.094 0.106 e 10.0 10.4 0.394 0.409 l 13.1 13.6 0.516 0.535 l1 3.48 3.78 0.137 0.149 l2 1.27 1.40 0.050 0.055
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