1/6 stps40l45cg/ct/cw january 2002 - ed: 3a low drop power schottky rectifier ? dual center tap schottky barrier rectifier designed for high frequency switched mode power supplies and dc to dc converters. packaged in to-220ab, to-247 and d 2 pak these devices are intended for use in low voltage, high frequency inverters, free-wheeling and polarity protection applications. description n low forward voltage drop meaning very small conduction losses n low switching losses allowing high frequency operation n avalanche rated features and benefits symbol parameter value unit v rrm repetitive peak reverse voltage 45 v i f(rms) rms forward current 30 a i f(av) average forward current tc = 130c d = 0.5 per diode per device 20 40 a i fsm surge non repetitive forward current tp = 10 ms sinusoidal 230 a i rrm repetitive peak reverse current tp = 2 m s squar e f = 1khz 2a i rsm non repetitive peak reverse current tp = 100 m s square 3a t stg storage temperature range - 65 to + 150 c tj maximum operating junction temperature * 150 c dv/dt critical rate of rise of reverse voltage 10000 v/ m s absolute ratings (limiting values, per diode) i f(av) 2x20a v rrm 45 v tj (max) 150 c v f (max) 0.49 v main products characteristics a1 k a2 to-247 stps40l45cw a1 k a2 to-220ab STPS40L45CT k a2 a1 *: dptot dtj rth j a < - 1 () thermal runaway condition for a diode on its own heatsink k a1 a2 d 2 pak stps40l45cg
STPS40L45CT/cw 2/6 symbol parameter tests conditions min. typ. max. unit i r * reverse leakage cur- rent tj = 25c v r =v rrm 0.6 ma tj = 125c 140 280 ma v f * forward voltage drop tj=25 ci f =20a 0.53 v tj = 125c i f =20a 0.42 0.49 tj = 25c i f =40a 0.69 tj = 125c i f =40a 0.6 0.7 pulse tes t:*tp=380 m s, d <2% to evaluate the conduction losses use the following equation : p=0.28xi f(av) + 0.0105 i f 2 (rms) static electrical characteristics (per diode) symbol parameter value unit r th (j-c) junction to case per diode total 1.5 0.8 c/w r th(c) coupling 0.1 c/w thermal resistances 0 2 4 6 8 1012141618202224 0 2 4 6 8 10 12 14 16 if(av) (a) pf(av)(w) t d =tp/t tp d = 0.05 d = 0.1 d = 0.2 d = 0.5 d = 1 fig. 1: average forward power dissipation versus average forward current (per diode). 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) 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 = 0.5, per diode)
STPS40L45CT/cw 3/6 1e-3 1e-2 1e-1 1e+0 0 25 50 75 100 125 150 175 200 225 250 t(s) im(a) tc=25c tc=125c tc=75c i m t d =0.5 fig. 3: non repetitive surge peak forward current versus overload duration (maximum values, per diode). 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 single pulse d = 0.1 d = 0.2 d = 0.5 fig. 4: relative variation of thermal impedance junction to case versus pulse duration. 0 5 10 15 20 25 30 35 40 45 1e-2 1e-1 1e+0 1e+1 1e+2 1e+3 vr(v) ir(ma) tj=125c tj=75c tj=25c tj=150c fig. 5: reverse leakage current versus reverse voltage applied (typical values, per diode). 1 10 100 0.1 1.0 10.0 c(nf) f=1mhz tj=25c vr(v) 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 1 10 100 1000 vfm(v) ifm(a) typical values tj=150c tj=125c tj=75c tj=25c fig. 7: forward voltage drop versus forward current (maximum values, per diode). 0 5 10 15 20 25 30 35 40 0 10 20 30 40 50 60 70 80 rth(j-a) (c/w) s(cu) (cm2) fig. 8: thermal resistance junction to ambient versus copper surface under tab (epoxy printed circuit board fr4, copper thickness: 35 m m) (stps40l45cg only).
STPS40L45CT/cw 4/6 package mechanical data to-220ab a c d l7 dia l5 l6 l9 l4 f h2 g g1 l2 f2 f1 e m ref. dimensions millimeters inches min. max. min. max. a 4.40 4.60 0.173 0.181 c 1.23 1.32 0.048 0.051 d 2.40 2.72 0.094 0.107 e 0.49 0.70 0.019 0.027 f 0.61 0.88 0.024 0.034 f1 1.14 1.70 0.044 0.066 f2 1.14 1.70 0.044 0.066 g 4.95 5.15 0.194 0.202 g1 2.40 2.70 0.094 0.106 h2 10 10.40 0.393 0.409 l2 16.4 typ. 0.645 typ. l4 13 14 0.511 0.551 l5 2.65 2.95 0.104 0.116 l6 15.25 15.75 0.600 0.620 l7 6.20 6.60 0.244 0.259 l9 3.50 3.93 0.137 0.154 m 2.6 typ. 0.102 typ. diam. 3.75 3.85 0.147 0.151 n cooling method : c n recommended torque value : 0.55m.n n maximum torque value : 0.70 m.n
stps40l45cg/ct/cw 5/6 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 n cooling method : by conduction (method c ) 8.90 3.70 1.30 5.08 16.90 10.30 foot print (in millimeters) d 2 pak
6/6 STPS40L45CT/cw 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 n cooling method : c n recommended torque value : 0.8m.n n maximum torque value : 1.0m.n 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 stps40l45cg stps40l45cg d2pak 1.8g 500 tape & reel STPS40L45CT STPS40L45CT to-220ab 2g 50 tube stps40l45cw stps40l45cw to-247 4.4g 30 tube n epoxy meets ul94,v0
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