november 2011 doc id 17696 rev 1 1/9 9 bat54-y automotive small signal schottky diodes features low conduction and reverse losses negligible switching losses low forward and reverse recovery times extremely fast switching surface mount device low capacitance diode ecopack ? 2 compliant component aec-q101 qualified description the bat54 series uses 40 v schottky barrier diodes packaged in sot-23, sot-323. these devices are suitable for automotive application. table 1. device summary symbol value i f 300 ma v rrm 40 v c (typ) 7 pf t j (max) 150 c bat54wfilmy (single) bat54cwfilmy (common cathode) bat54awfilmy (common anode) sot-323 configurations in top view sot-23 bat54filmy (single) BAT54SFILMY (series) www.st.com
characteristics bat54-y 2/9 doc id 17696 rev 1 1 characteristics table 2. absolute ratings (limiting values at t j = 25 c, unless otherwise specified) symbol parameter value unit v rrm repetitive peak reverse voltage 40 v i f continuous forward current 300 ma i fsm surge non repetitive forward current t p = 10 ms sinusoidal 1 a t stg storage temperature range -65 to +150 c t j operating junction temperature range -40 to +150 c t l maximum soldering temperature 260 c table 3. thermal parameters symbol parameter value unit r th(j-a) junction to ambient (1) 1. epoxy printed ci rcuit board with recommended pad layout sot-23 500 c/w sot-323 550 c/w table 4. static electrical characteristics symbol parameter test cond itions min. typ. max. unit i r (1) 1. pulse test: t p = 5 ms, < 2 % reverse leakage current t j = 25 c v r = 30 v 1 a t j = 100 c 100 v f (2) 2. pulse test: t p = 380 s, < 2 % forward voltage drop t j = 25 c i f = 0.1 ma 240 mv i f = 1 ma 320 i f = 10 ma 400 i f = 30 ma 500 i f = 100 ma 900 table 5. dynamic characteristics symbol parameter test conditions min. typ. max. unit c diode capacitance v r = 1 v, f = 1 mhz 7 10 pf t rr reverse recovery time i f = 10 ma, i r = 10 ma, t j = 25 c i rr = 1 ma, r l = 100 5ns
bat54-y characteristics doc id 17696 rev 1 3/9 figure 1. average forward power dissipation versus average forward current figure 2. average forward current versus ambient temperature ( = 1) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 p(w) =0.05 =0.2 =0.1 =0.5 =1 t =tp/t tp i f(av) (a) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0 25 50 75 100 125 150 i f(av) (a) t =tp/t tp t amb (c) figure 3. reverse leakage current versus reverse applied voltage (typical values) figure 4. reverse leakage current versus junction temperature 1.e-02 1.e-01 1.e+00 1.e+01 1.e+02 0 5 10 15 20 25 30 i r (a) t j =100c t j =25c t j =50c v r (v) 1.e-01 1.e+00 1.e+01 1.e+02 1.e+03 1.e+04 0 25 50 75 100 125 150 i r [t j ]/i r [t j =25c] v r =3v t j (c) figure 5. junction capacitance versus reverse applied voltage (typical values) figure 6. forward voltage drop versus forward current (typical values) 1 10 1 10 100 c(pf) f=1mhz v osc =30mv rms t j =25c v r (v) 1.e-04 1.e-03 1.e-02 1.e-01 1.e+00 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 i fm (a) t j =50c t j =50c t j =25c t j =25c t j =-40 c t j =-40 c t j =100c t j =100c v fm (v)
characteristics bat54-y 4/9 doc id 17696 rev 1 figure 7. relative variation of thermal impedanc e junction to ambient versus pulse duration (sot-23) 1.e-02 1.e-01 1.e+00 1.e-03 1.e-02 1.e-01 1.e+00 1.e+01 1.e+02 z th(j-a) /r th(j-a) alumine substrate 10 x 8 x 0.5 mm single pulse sot23 t p (s)
bat54-y ordering information scheme doc id 17696 rev 1 5/9 2 ordering information scheme figure 8. ordering information scheme bat54 xx xx film y signal schottky diodes package packing v = 40 v rrm no letter = single diode a = common anode c = common cathode s = series diodes blank = sot-23 w = sot-323 film = tape and reel configuration automotive grade
package information bat54-y 6/9 doc id 17696 rev 1 3 package information epoxy meets ul94, v0 lead-free packages 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. figure 9. sot-23 footprint (dimensions in mm) table 6. sot-23 dimensions ref. dimensions millimeters inches min. max. min. max. a 0.89 1.4 0.035 0.055 a1 0 0.1 0 0.004 b 0.3 0.51 0.012 0.02 c 0.085 0.18 0.003 0.007 d 2.75 3.04 0.108 0.12 e 0.85 1.05 0.033 0.041 e1 1.7 2.1 0.067 0.083 e 1.2 1.6 0.047 0.063 h 2.1 2.75 0.083 0.108 l 0.6 typ. 0.024 typ. s 0.35 0.65 0.014 0.026 a1 a l h b e d e e1 s c 0.95 0.61 1.26 3.25 0.73
bat54-y package information doc id 17696 rev 1 7/9 figure 10. sot-323 footprint (dimensions in mm) table 7. sot-323 dimensions ref. dimensions millimeters inches min. typ. max. min. typ. max. a 0.8 1.1 0.031 0.043 a1 0.0 0.1 0.0 0.004 b 0.25 0.4 0.010 0.016 c 0.1 0.26 0.004 0.010 d 1.8 2.0 2.2 0.071 0.079 0.086 e 1.15 1.25 1.35 0.045 0.049 0.053 e 0.65 0.026 h 1.8 2.1 2.4 0.071 0.083 0.094 l 0.1 0.2 0.3 0.004 0.008 0.012 q 0 30 0 30 a1 a l h c b e d e 0.95 1.0 2.9 0.50 0.8
ordering information bat54-y 8/9 doc id 17696 rev 1 4 ordering information 5 revision history table 8. ordering information order code marking package weight base qty delivery mode bat54filmy 86y sot-23 single 10 mg 3000 tape and reel BAT54SFILMY 88y sot-23 serial 10 mg bat54wfilmy 73y sot-323 single 6 mg bat54cwfilmy 77y sot-323 common cathode 6 mg bat54awfilmy 74y sot-323 common anode 6 mg table 9. document revision history date revision changes 04-nov-2011 1 initial release.
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