november 2011 doc id 022031 rev 1 1/10 10 STPS40SM60C power schottky rectifier features high current capability avalanche rated low forward voltage drop high frequency operation description the STPS40SM60C is a dual diode schottky rectifier, suited for high frequency switch mode power supply. packaged in to-220ab, i 2 pak and d 2 pak, this device is intended to be used in notebook, game station and desktop adapters, providing in these applications a good efficiency at both low and high load. figure 1. electrical characteristics (a) table 1. device summary symbol value i f(av) 2 x 20 a v rrm 60 v v f (typ) 0.405 v t j (max) 150 c a. v arm and i arm must respect the reverse safe operating area defined in figure 12 . v ar and i ar are pulse measurements (t p < 1 s). v r , i r , v rrm and v f , are static characteristics a1 k a2 a1 a2 k k a1 a2 k k to-220ab STPS40SM60Ct i 2 pak STPS40SM60Cr d 2 pak STPS40SM60Cg-tr a1 a2 k i f 2 x i o i o i r i ar v f(i o ) v to v f(2xi o ) v f v i i v v r v rrm "reverse" "forward" v ar x x www.st.com
characteristics STPS40SM60C 2/10 doc id 022031 rev 1 1 characteristics when the two diodes 1 and 2 are used simultaneously: t j (diode 1) = p(diode 1) x r th(j-c) (per diode) + p(diode 2) x r th(c) table 2. absolute ratings (limiting values, per diode, at t amb = 25 c unless otherwise specified) symbol parameter value unit v rrm repetitive peak reverse voltage 60 v i f(rms) forward rms current 60 a i f(av) average forward current, = 0.5 t c = 130 c per diode 20 a t c = 125 c per device 40 i fsm surge non repetitive forward current t p = 10 ms sine-wave 400 a p arm (1) 1. for temperature or pulse time duration deratings, please refer to figure 4 and 5 . more details regarding the avalanche energy measurements and diode validation in the avalanc he are provided in the application notes an1768 and an2025. repetitive peak avalanche power t j = 25 c, t p = 1 s 18800 w v arm (2) 2. see figure 12 maximum repetitive peak avalanche voltage t p < 1 s, t j < 150 c, i ar < 70.5 a 80 v v arm (2) maximum single-pulse peak avalanche voltage t p < 1 s, t j < 150 c, i ar < 70.5 a 80 v t stg storage temperature range -65 to +175 c t j maximum operating junction temperature (3) 3. condition to avoid thermal runaway for a diode on its own heatsink 150 c table 3. thermal parameters symbol parameter value unit r th(j-c) junction to case per diode 1.3 c/w total 0.73 r th(c) coupling 0.15 c/w dptot dtj < 1 rth(j-a)
STPS40SM60C characteristics doc id 022031 rev 1 3/10 to evaluate the conduction losses use the following equation: p = 0.415 x i f(av) + 0.008 x i f 2 (rms) table 4. static electrical characteristics (per diode) symbol parameter test conditions min. typ. max. unit i r (1) reverse leakage current t j = 25 c v r = v rrm -2090a t j = 125 c - 15 50 ma v f (2) forward voltage drop t j = 25 c i f = 10 a - 0.495 0.535 v t j = 125 c - 0.405 0.460 t j = 25 c i f = 20 a - 0.565 0.625 t j = 125 c - 0.510 0.575 1. pulse test: t p = 5 ms, < 2% 2. pulse test: t p = 380 s, < 2% figure 2. average forward power dissipation versus average forward current (per diode) figure 3. average forward current versus ambient temperature ( = 0.5, per diode) p (w) f(av) 0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18 20 22 24 26 t = t / t p t p i (a) f(av) = 1 = 0.5 = 0.2 = 0.1 = 0.05 i (a) f(av) 0 4 8 12 16 20 24 0 25 50 75 100 125 150 t (c) amb r th(j-a) = r th(j-c) figure 4. normalized avalanche power derating versus pulse duration figure 5. normalized avalanche power derating versus junction temperature 0.001 0.01 0.1 0.01 1 0.1 10 100 1000 1 p(t p ) p (1s) arm arm t (s) p 0 0.2 0.4 0.6 0.8 1 1.2 25 50 75 100 125 150 p(t) p (25 c) arm j arm t (c) j
characteristics STPS40SM60C 4/10 doc id 022031 rev 1 figure 6. non repetitive surge peak forward current versus overload duration (maximum values, per diode) figure 7. relative thermal impedance junction to case versus pulse duration 0 40 80 120 160 200 240 280 1.e-03 1.e-02 1.e-01 1.e+00 i (a) m i m t = 0.5 t(s) t = 25 c c t = 75 c c t = 125 c c z/r th(j-c) th(j-c) 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.e-04 1.e-03 1.e-02 1.e-01 1.e+00 single pulse t (s) p figure 8. reverse leakage current versus reverse voltage applied (typical values, per diode) figure 9. junction capacitance versus reverse voltage applied (typical values, per diode) 1.e-03 1.e-02 1.e-01 1.e+00 1.e+01 1.e+02 0 102030405060 i (ma) r v (v) r t = 25 c j t = 50 c j t = 75 c j t = 125 c j t = 150 c j t = 100 c j 100 1000 10000 1 10 100 c(pf) v (v) r f = 1 mhz v = 30 mv t = 25 c osc rms j figure 10. forward voltage drop versus forward current (per diode) figure 11. thermal resistance junction to ambient versus copper surface under tab i (a) fm 0.1 1.0 10.0 100.0 1000.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 (typical values) t = 125 c j (maximum values) t = 125 c j v (v) fm (maximum values) t = 25 c j 0 10 20 30 40 50 60 70 80 0 5 10 15 20 25 30 35 40 dpak 2 r (c/w) th(j-a) s (cm ) cu 2 epoxy printed board copper thickness = 35 m
STPS40SM60C characteristics doc id 022031 rev 1 5/10 figure 12. reverse safe operating area (t p < 1 s and t j < 150 c) 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80 85 90 95 100 105 110 115 120 i (a) arm v (v) arm i (v ) 150 c, 1s arm arm
package information STPS40SM60C 6/10 doc id 022031 rev 1 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-220ab 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 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. dia. 3.75 3.85 0.147 0.151 a c d l7 dia l5 l6 l9 l4 f h2 g g1 l2 f2 f1 e m
STPS40SM60C package information doc id 022031 rev 1 7/10 figure 13. d 2 pak footprint (dimensions in mm) table 6. d 2 pak dimensions 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 g l l3 l2 b b2 e * flat zone no less than 2mm a c2 d r a2 m v2 c a1 * 16.90 10.30 8.90 3.70 5.08 1.30
package information STPS40SM60C 8/10 doc id 022031 rev 1 table 7. i 2 pak dimensions ref. dimensions millimeters inches min. max. min. max. a 4.40 4.60 0.173 0.181 a1 2.40 2.72 0.094 0.107 b 0.61 0.88 0.024 0.035 b1 1.14 1.70 0.044 0.067 c 0.49 0.70 0.019 0.028 c2 1.23 1.32 0.048 0.052 d 8.95 9.35 0.352 0.368 e 2.40 2.70 0.094 0.106 e1 4.95 5.15 0.195 0.203 e 10 10.40 0.394 0.409 l 13 14 0.512 0.551 l1 3.50 3.93 0.138 0.155 l2 1.27 1.40 0.050 0.055 e l2 l1 b1 d a1 c c2 a b e e1 l
STPS40SM60C ordering information doc id 022031 rev 1 9/10 3 ordering information 4 revision history table 8. ordering information order code marking package weight base qty delivery mode STPS40SM60Ct STPS40SM60Ct to-220ab 2.20 g 50 tube STPS40SM60Cr STPS40SM60Cr i 2 pak 1.49 g 50 tube STPS40SM60Cg-tr STPS40SM60Cg d 2 pak 1.48 g 1000 tape and reel table 9. revision history date revision changes 02-nov-2011 1 first issue.
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