1/5 stps40l15cw/ct august 2002 - ed: 4b low drop or-ing power schottky diode ? dual center tap schottky rectifier packaged in to-220ab and to-247, this device is especially intended for use as or-ing diode in fault tolerant power supply equipments. description n very low forward voltage drop for less power dissipation and reduced heatsink size n reverse voltage suited to or-ing of 3v, 5v and 12v rails features and benefits symbol parameter value unit v rrm repetitive peak reverse voltage 15 v i f(rms) rms forward current 30 a i f(av) average forward current tcase = 140c d =1 total 40 a per diode 20 i fsm surge non repetitive forward current tp = 10 ms sinusoidal 310 a i rrm peak repetitive reverse current tp = 2 m s f = 1khz 2a i rsm non repetitive peak reverse current tp = 100 m s 3a t stg storage temperature range -65 to+150 c t j maximum operating junction temperature * 125 c dv/dt critical rate of rise of reverse voltage 10000 v/ m s absolute ratings (limiting values, per diode) a1 k a2 i f(av) 2x20a v rrm 15 v tj (max) 125c v f (max) 0.33 v major product characteristics to-247 stps40l15cw a1 k a2 *: dptot dtj rth j a < - 1 () thermal runaway condition for a diode on its own heatsink a1 a2 k to-220ab STPS40L15CT
stps40l15cw/ct 2/5 symbol parameter tests conditions min. typ. max. unit i r * reverse leakage cur- rent tj = 25c v r =v rrm 6ma tj = 100c 200 500 v f * forward voltage drop tj = 25 ci f =19a 0.41 v tj=25 ci f =40a 0.52 tj = 125c i f =19a 0.28 0.33 tj = 125c i f =40a 0.42 0.50 pulse test : * tp = 380 m s, d <2% to evaluate the conduction losses use the following equation : p=0.18xi f(av) + 0.008 i f 2 (rms) static electrical characteristics (per diode) symbol parameter value unit r th (j-c) junction to case per diode 1.6 c/w total 0.85 r th (c) coupling 0.1 c/w thermal resistances 0 2 4 6 8 10121416182022 0 1 2 3 4 5 6 7 8 pf(av)(w) if(av) (a) d = 1 d = 0.5 d = 0.2 d = 0.1 d = 0.05 t d =tp/t tp fig. 1: average forward power dissipation versus average forward current (per diode). 0 25 50 75 100 125 150 0 2 4 6 8 10 12 14 16 18 20 22 tamb(c) if(av)(a) rth(j-a)=15c/w rth(j-a)=rth(j-c) t d =tp/t tp fig. 2: average forward current versus ambient temperature ( d =1, per diode).
stps40l15cw/ct 3/5 1.0e-4 1.0e-3 1.0e-2 1.0e-1 1.0e+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 single pulse d = 0.5 d = 0.2 d = 0.1 fig. 4: relative variation of thermal impedance junction to case versus pulse duration (per diode). 0246810121416 1e-1 1e+0 1e+1 1e+2 5e+2 ir(ma) tj=100c tj=25c vr(v) fig. 5: reverse leakage current versus reverse voltage applied (typical values per diode). 12 51020 0.1 1.0 5.0 vr(v) c(nf) 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 10.0 100.0 200.0 vfm(v) ifm(a) tj=150c tj=25c tj=125c tj=75c fig. 7: forward voltage drop versus forward current (typical values per diode). 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 1 10 100 200 ifm(a) tj=100c vfm(v) fig. 8: forward voltage drop versus forward current (typical maximum per diode). 1e-3 1e-2 1e-1 1e+0 0 50 100 150 200 250 t(s) im(a) tc=50c tc=75c tc=110c i m t d =0.5 fig. 3: non repetitive surge peak forward current versus overload duration (maximum values per diode).
stps40l15cw/ct 4/5 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 n cooling method: c n recommended torque value: 0.55 m.n n maximum torque value: 0.70 m.n
stps40l15cw/ct 5/5 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 package mechanical data to-247 f2 f1 v2 l4 l2 l1 l3 d l l5 me h v v a dia. f3 f4 g = = f(x3) ref. dimensions millimeters inches min. typ. max. min. typ. max. a 4.85 5.15 0.191 0.203 d 2.20 2.60 0.086 0.102 e 0.40 0.80 0.015 0.031 f 1.00 1.40 0.039 0.055 f1 3.00 0.118 f2 2.00 0.078 f3 2.00 2.40 0.078 0.094 f4 3.00 3.40 0.118 0.133 g 10.90 0.429 h 15.45 15.75 0.608 0.620 l 19.85 20.15 0.781 0.793 l1 3.70 4.30 0.145 0.169 l2 18.50 0.728 l3 14.20 14.80 0.559 0.582 l4 34.60 1.362 l5 5.50 0.216 m 2.00 3.00 0.078 0.118 v5 5 v2 60 60 dia. 3.55 3.65 0.139 0.143 ordering type marking package weight base qty delivery mode stps40l15cw stps40l15cw to-247 4.4 g. 30 tube STPS40L15CT STPS40L15CT to-220ab 2g 50 tube n epoxy meets ul94,v0 n cooling method: c n recommended torque value: 0.8 m.n n maximum torque value: 1.0 m.n
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