this is information on a product in full production. october 2012 doc id 023750 rev 1 1/7 7 STPS1545-Y automotive power schottky rectifier datasheet ? production data features very small conduction losses negligible switching losses extremely fast switching avalanche capability specified aecq-101 qualified ecopack ? 2 compliant component description single chip schottky rect ifier suited for switch mode power supply and high frequency dc to dc converters. packaged in to-220ac, this device is especially intended for use in low voltage, high frequency inverters, free wheeling and polarity protection in automotive applications. table 1. device summary symbol value i f(av) 15 a v rrm 45 v t j (max) 175 c v f (max) 0.57 v to-220ac stps1545dy a k www.st.com
characteristics STPS1545-Y 2/7 doc id 023750 rev 1 1 characteristics to evaluate the conduction losses use the following equation: p = 0.42 x i f(av) + 0.01 i f 2 (rms) table 2. absolute ratings (limiting values) symbol parameter value unit v rrm repetitive peak reverse voltage 45 v i f(rms) forward rms current 30 a i f(av) average forward current = 0.5 t c = 155 c 15 a i fsm surge non repetitive forward current t p = 10 ms sinusoidal 220 a i rrm peak repetitive reverse current t p = 2 s square f = 1 khz 1a i rsm non repetitive peak reverse current t p = 100 s square 3 a p arm repetitive peak avalanche power t p = 1 s t j = 25 c 6000 w t stg storage temperature range -65 to + 175 c t j operating junction temperature (1) 1. condition to avoid thermal runaway for a diode on its own heatsink -40 to + 175 c dv/dt critical rate of rise of reverse voltage 10000 v/s table 3. thermal resistances symbol parameter value unit r th(j-c) junction to case 1.6 c/w table 4. static electrical characteristics (per diode) symbol parameter test conditions min. typ. max. unit i r (1) 1. pulse test: t p = 380 s, < 2% reverse leakage current t j = 25 c v r =v rrm - - 200 a t j = 125 c - 11 40 ma v f (1) forward voltage drop t j = 125 c i f = 15a - 0.5 0.57 v t j = 25 c i f = 30 a --0.84 t j = 125 c i f = 30 a - 0.65 0.72 d ptot dtj - -------------- 1 rth j a ? () ------------------------- - <
STPS1545-Y characteristics doc id 023750 rev 1 3/7 figure 1. average forward power dissipation versus average forward current figure 2. average forward current versus ambient temperature ( = 0.5) 0 2 4 6 8 1012141618 0 2 4 6 8 10 12 p (w) f(av) t =tp/t tp i (a) f(av) = 0.05 = 0.1 = 0.2 = 0.5 = 1 0 25 50 75 100 125 150 175 i (a) f(av) r =15c/w th(j-a) t (c) amb t =tp/t tp 0 2 4 6 8 10 12 14 16 18 r=r th(j-a) th(j-c) to-220ac figure 3. normalized avalanche power derating versus pulse duration figure 4. normalized avalanche power derating versus junction temperature 0.001 0.01 0 .1 0 . 0 11 0.1 1 0 1 00 1 000 1 t (s) p p(t) p (1s) arm p arm 0 0.2 0.4 0.6 0.8 1 1.2 25 50 75 100 125 150 t (c) j p(t) p (25c) arm p arm figure 5. non repetitive surge peak forward current versus overload duration (maximum values) figure 6. relative variation of thermal impedance junction to case versus pulse duration i (a) m i m t =0.5 t(s) t =75c c t =100c c t =125c c 1e-3 1e-2 1e-1 1e+0 0 20 40 60 80 100 120 140 160 180 200 1e-4 1e-3 1e-2 1e-1 1e+0 0.0 0.2 0.4 0.6 0.8 1.0 z/r th(j-c) th(j-c) t =tp/t tp t (s) p = 0.5 = 0.2 = 0.1 single pulse
characteristics STPS1545-Y 4/7 doc id 023750 rev 1 figure 9. forward voltage drop versus forward current (maximum values) figure 7. reverse leakage current versus reverse voltage applied (typical values) figure 8. junction capacitance versus reverse voltage applied (typical values) 0 5 10 15 20 25 30 35 40 45 1e+0 1e+1 1e+2 1e+3 1e+4 5e+4 i (a) r v (v) r t =125c j t =150c j t =100c j t =25c j t =50c j t =75c j c(pf) 12 51020 50 100 200 500 1000 2000 v (v) r f=1mhz v =30mv t =25c osc rms j 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 i (a) fm t =125c (typical values) j t =25c j t =125c j v (v) fm
STPS1545-Y package information doc id 023750 rev 1 5/7 2 package information epoxy meets ul94, v0 cooling method: by conduction (c) recommended torque value: 0.4 to 0.6 nm in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. table 5. to-220ac dimensions 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 g 4.95 5.15 0.194 0.202 h2 10.00 10.40 0.393 0.409 l2 16.40 typ. 0.645 typ. l4 13.00 14.00 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. i 3.75 3.85 0.147 0.151 a c d l7 ? i l5 l6 l9 l4 f h2 g l2 f1 e m
ordering information STPS1545-Y 6/7 doc id 023750 rev 1 3 ordering information 4 revision history table 6. ordering information order code marking package weight base qty delivery mode stps1545dy stps1545dy to-220ac 1.86 g 50 tube table 7. document revision history date revision changes 29-oct-2012 1 first issue.
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