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str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.1 str-y6700 ? ?? (rev. 2.0) ?? sanken electric co., ltd. http://www.sanken-ele.co.jp free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.2 ?? 1 ? --------------------------------------------------------------------------------------------3 2. ?? ---------------------------------------------------------------------- 3 3. block ?? ----------------------------------------------------------------- 4 4 ? -----------------------------------------------------------------------------------------5 5 --------------------------------------------------------------------------------------6 5.1 ------------------ ` ! ???`x?? 5.2 mosfet ? ----- ` ! ???`x?? 5.3 ?? ------------ ` ! ???`x?? 6 ??? -----------------------------------------------------------------------------------8 7. ? ---------------------------------------------------------------------------------- 9 7.1 ?? ------------------------------------------------------------------------------9 7.2 ?? ------------------------------------------------------------- 14 7.3 ????? ------------------------------------------------------- 15 7.4 auto-standby ------------------------------------------------------------------21 7.5 ??ovp --------------------------------------------------------- 21 7.6 ?? olp ---------------------------------------------------------22 7.7 ? tsd --------------------------------------------------------------- 23 7.8 olp ---------------------------------------------------------- 24 7. 9 on ?? ------ ` ! ???`x?? 8 ?? ----------------------------------------------------------------------------29 8.1 ?? ------------------------ ` ! ???`x?? 8.2 ? --------------------- ` ! ???`x?? 8.3 ------------------------ ` ! ???`x?? 8.4 pcb ------------------ ` ! ???`x?? ? ------------------------------------------------------------------------------------------32 free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.3 1. ? str-y6700 ?? mosfet ? ic ????????? ic ?? bottomskip ??? noise? burst ???? ? 7pin full-mold ? to220f - 7l ????????? ??? 2. ?? ? ? to - 220f-7l ? ? ?? ? multi-mode ( ?????????? ) ? leb leading edge blanking ??? filter ? ? ? standby burst ??? ??? p in <30mw(ac100v) 50mw(ac230v) ? bottom-skip ? ??????? ? step on burst ? ? ????? ? bias assist ?standby ? ? soft-start ???? mosfet ?? ? on ?? ? vcc ?( 9.3v 35v ) ? ? chip ??? mosfet ?(???) ? ?? (ocp) --- ac ?? ? (ovp) --------------- latch off ? (olp) --------------- latch off ? tsd ----------------- latch off 1 latch off ???? ?? ?? mosfet ? v dss (min) r ds(on) (max) p out 2 dc380v / universal str?y6735 500v 0.8 ? ac100v ? 120w str?y6753 1.9 ? 100w / 60w str?y6754 650v 1.4 ? 120w / 67w str?y6763 3.5 ? 80w / 50w str?y6765 2.2 ? 120w / 70w str?y6766 800v 1.7 ? 140w / 80w 2 ?????? 120% 140% ? ????? on duty ????? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.4 3. block ?? block ? ? ? ? 1 d/st mosfet ???? 2 s/ocp mosfet ??? 3 v cc ?? 4 gnd ground 5 fb/olp ?? ?? 6 bd bottom ? ? 7 nf ? 3 3 ? ? nf 7 ???? gnd 4 ? vcc gnd d/st s/ocp fb/olp bd uvlo reg/iconst latch osc startup logic dr ocp/bs fb/stb olp bd nf 3 1 2 5 6 4 7 free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.5 ? ? to-220f-7l ? ? ? no.lf 3051 sr t a b ??B 0.5 0.5 0.5 0.5 ?B 5.080.6 (??) 2.540.6 (??) 0.45 +0.2 -0.1 r-end 50.5 r-end 2.6 0.1 ? 2.6 4.2 3.2 +0.2 2.8 ? 0.15 2 0.15 7-0.62 -0.1 +0.2 7-0.55 10.4 0.5 15 10 12 3456 7 0.2 1.1 0.2 50.5 0.2 5p1.170.15 5.850.15 0.3 ? 0.2 5.6 ???? a. ?? y67 b. lot 1 ? 2 1 9 10 o 11 n 12 d 3 4 01 31 5 ? ? cu ? ? ? 1.45g (mm) ? ???????? ????? 0.3mm(max) free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.6 4. str-y6700 ??? str-y6763 ?? ??? ic ??? + ? ? ???? 5.1 ???? ta=25 ? ? ? ? drain 4 1 ? 2 i dpeak 6.7 a single pulse switching 4 1 ? 2 i dmax 6.7 a ta=-20 +125 single pulse ? 4 1 ? 2 e as 60 mj v dd =99v,l=20mh ilpeak=2.3a ???? 3 ? 4 v cc 35 v ???? 1 ? 4 v startup -1.0 v dss v ocp ?? 2 ? 4 v ocp -2.0 +6.0 v fb ?? 5 ? 4 v fb -0.3 +7.0 v fb 5 ? 4 i fb 10.0 ma bd ?? 6 ? 4 v bd -6.0 +6.0 v bd 6 ? 4 i bdin 5.0 ma bd 6 ? 4 i bdout -5.0 ma 19.9 ?? mos fet ? 4 1 ? 2 p d1 1.8 w ? ?? mic D p d2 0.8 w ?? frame ? 5 D t f -20 +115 ? D top -20 +115 ? D tstg -40 +125 channel ? D tch +150 4 ????? 5 ?? frame ?? tf=105 5.2 mosfet ? ???? ta=25 ? ? m i n typ max ? drain-source ? 1 ? 2 v dss 800 D D v drain ? 1 ? 2 i dss D D 300 a on 1 ? 2 r ds(on) D D 3.5 ? switching time 1 ? 2 f D D 250 ns 4 6 D ch-f D 2.8 3.2 / channel ? frame 4 ????? 6 mosfet ?? frame free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.7 5.3 ?? ???? ta=25 v cc =20v ? ? min typ max ? ??? ??? 3 ? 4 v cc(on) 13.8 15.1 17.3 v ???? 7 3 ? 4 v cc(off) 8.4 9.4 10.7 v ? 3 ? 4 i cc(on) D 1.3 3.7 ma ?? 3 ? 4 i cc(off) D 4.5 50 a v cc = 13v ??? 1 ? 4 v start(on) 42 57 72 v ?? 3 ? 4 i cc(startup) ? 4.5 ? 3.1 ? 1.0 ma v cc = 13v ????? 7 3 ? 4 v cc(bias) 9.5 11.0 12.5 v ? 1 ? 4 f osc 18.4 21.0 24.4 khz softstart ? 1 ? 4 t ss D 6.05 D ms bottomskip ?? 1 2 ? 4 v ocp(bs1) 0.487 0.572 0.665 v bottomskip ?? 2 2 ? 4 v ocp(bs2) 0.200 0.289 0.380 v ??? 1 8 6 ? 4 v bd(th1) 0.14 0.24 0.34 v ??? 2 8 6 ? 4 v bd(th2) D 0.17 D v 5 ? 4 i fb(max) ? 320 ? 205 ? 120 a ?? 5 ? 4 v fb(stbop) 0.45 0.80 1.15 v on ? 1 ? 4 t on(max) 30.0 40.0 50.0 s ?? 1 ? 4 t on(leb) D 470 D ns ??? ? v bd = 0v ? 2 ? 4 v ocp(h) 0.820 0.910 1.000 v ??? ? v bd = ? 3v ? 2 ? 4 v ocp(l) 0.560 0.660 0.760 v ??? latch off 2 ? 4 v ocp(la.off) 1.65 1.83 2.01 v bd 6 ? 4 i bd(o) ? 250 ? 83 ? 30 a olp ?? 5 ? 4 i fb(olp) ? 15 ? 10 ? 5 a olp ??? 5 ? 4 v fb(olp) 5.50 5.96 6.40 v ovp ?? 3 ? 4 v cc(ovp) 28.5 31.5 34.0 v ?? 5 ? 4 v fb(max) 3.70 4.05 4.40 v ??? D t j(tsd) 135 D D c 7 ?? v cc (bias) > v cc (off) ?? 8 ?? v bd(th1) > v bd(th2) ?? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.8 6. ? ? ???? nf7 ???? gnd(4 ?) ? 6 ??? nf gnd fb/olp s/ocp v cc d/st 2 1 7 5 4 23 str-y6700 6 bd vac c1 d2 r2 c2 t1 d3 c6 r3 r4 u2 r6 r8 c7 d p s pc1 pc1 c4 r ocp c5 d1 r5 r7 l1 c8 c v vout gnd c3 r bd2 r bd1 dz bd c bd r1 u1 free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.9 ? 7-1 v cc ?? c2 r2 p d c1 d1 d/st vcc gnd 1 str-y6700 3 4 7. ? ??? ic ??? + ? ? ????? str-y6763 typ ? 7.1 ?? 7.1.1 ?rg vcc ??? 7-1 ? ic ??? ic ? d/st (1 ?)? ic ??? istartup=-2.9ma(typ) vcc ? c2 vcc ???? ? vcc(on)=15.4v(typ)ic ?????? ?????? ? c2 ???1? start P c2 ( v cc (on) v cc (int) ) / i startup ----- (1) t start ?? (sec) v cc (int) ? v cc ???? (v) ????? c2 ??? 10 47 f 7.1.2 ? uvlo undervoltage lockout vcc ?? icc ??? 7-2 ? v cc ??? v cc (on) = 15.1v(typ) ?? ???vcc ???????? v cc(off) = 9.4v(typ) ??? (uvlo)???????? ? ? 7-1 ?? d ? vcc ?? ?????? d ? vcc ??? ) v ( v 5 . 28 v ) v ( v 5 . 12 min ) ovp ( cc cc max ) bias ( cc ? ? ------(2) ???? 20v i cc i cc on =3.7ma max 9.4v v cc off 15.1v v cc on v cc ?R ?? ? 7-2 v cc ?? i cc free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.10 vcc out r2r r2r ? 7-4 i out v cc ?? 7.1.3 bias assist ?? vcc ??? 7-3 ? v cc ??? v cc(on) = 15.1v ic ? ic ? v cc ?????? v d ????? ? v cc ?? mosfet ????????? ?????????? v cc ???? v cc(off) = 9.4v ?????? ???? ? fb ????? v fb(stbop) =0.80v ? ? v cc ?????? v cc(bias) = 11.0v bias assist ?bias assist ? ?????? v cc ??? v cc ?????? bias assist ? c2 ?y??? ?????????? v cc ??????????? ?????????? 7.1.4 ????? 7-4 ? i out ? v cc ???? ? mosfet ???? c2 ????? 7-5 ??? ? ? ? ? r2 d2 ? vcc ???????? r2 ??? ???? ? 7-3 ? vcc ?? ? 7-5 i out ? v cc ?? str-y6700 v cc gnd 3 4 c2 r2 d2 d ? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.11 ?? v cc ??????????? ? d ? ? ??????????(?) ? d ? ( ? ) ???????? ? 7-6 ?? vcc ???????? d ?? ? ? d ? 1 p x ( ? 7-6 ? ) p1 p2 ???? ? ? 2 ? s1 ? d ? ( ? 7-7 ? ) 2 s1 s2 s1 ? ( ? ) ???????? ???????? ??? p1 s1 p2 s2 d core bobbin ? 7-6 ? p1,p2 1 s1 ? s2 d v cc ???????? ???????? ??? p1 s1 p2 s2 d bobbin core p1,p2 1 s1 2 ? s2 2 d v cc free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.12 7.1.5 softstart ??? 7-7 ? ?????????ic ?? t ss = 6.05ms ?? ??????? mosfet 2 ???? ????ic ?? f osc = 21.0khz pwm ?? olp ??? v cc ??????? 7.1.6 ????? ? 7-7 ???????????? ? ? ?? 1 v bd(th1) = 0.24v ?? 1.0s ??ic ?? f osc = 21.0khz pwm ????????? ???? t ss ?? pwm ? ? 7-7 ????? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.13 + fb - vsc vr1 id ??R s/ocp?R (?r1?I?R) comparator drain ? 7-9 ? ` ocp v t on(leb) ? 7-10 s/ocp ?? (drain ) ? 7-8 fb/olp ?? c4 pc1 gnd s/ocp str-y6700 45 fb/olp 2 r ocp 7.2 ?? ic ???????? ? ( ??? ) ??? 2 ?? ? 7-8 ???? fb ? fb ??? fb ?? fb ??? v sc ? s/ocp ?????? vr1( r ocp ?? ) ?? ????? ?mosfet ??????? ? 7-9 ? ??? fb ????? ???? ??????? ????? mosfet ?? ??? fb ?? ocp ?? mosfet ?? ?? ic leading edge blanking ? mosfet ???? leb ? ?? t on(leb) = 400ns typ ? 7-10 ??????? t on(leb) ?? vds ??? ? cv 2 snubber ? ????? ? 7-10 v ocp ? 7. 8 ocp ?? vocp free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.14 7.3 ???? ?? 7.3.1 ? ??? 7-11 ?? mosfet ?????? ?? ?? mosfet ?? 2 ??? mosfet ???????? ? v ds ??? l p ?? c v ??? ??? v ds ????? mosfet ??? ??? ????? v ds ?? 7-12 ? ?????? ??? ic ???? ?? bottom skip ?????? ?,?? ? ? 7-11 ? e in ? e fly ? ?? f o s p fly v v n n e ? ? ? n p 1 n s 2 v o ? v f 2 ?? i d mosfet ? i off mosfet ?? 2 ? c v ? l p ? t1 s e in n p n s l p c v e fly i d i off v o c6 v f c1 d3 p v ds 0 i off 0 i d 0 t on e in e fly v p ondly c l t ? ? P ?? t ondly ?? ? 7-12 ???? ( v ds ?????? ) free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.15 7.3.2 ???? (bottom on timing) bd ?????? 7-13 ? bd ?1? ???? ocp ? --- ?7. 8 ocp ? ?? 7-13 bd ?? dz bd r bd1 r bd2 c bd ???? ?? v ds ???? mosfet ????? t ondly ? v ds ? ? d ?? erev1 ? dz bd ??? v f ?? r bd1 r bd2 ??? erev2 erev2 bd ???? erev2 ?? t ondly ? c bd mosfet ???(erev2)??? 1 v bd(th1) = 0.24v(typ) ???? ? erev2 ????? v bd(th2) = 0.17v(typ) ? mosfet ? e rev2 ? v bd(th2) ic ????? v bd(th1) ?? bd ? r bd1 r bd2 ? ??? v cc ??? r bd1 r bd2 ??? e rev2 v bd(th1) = 0.34v(max) ?? v cc ???? r bd1 r bd2 ??? e rev2 bd +6.0v ?? 1.0 s ( ?? 7-20) ?? e rev2 ???? 3.0v 1 s/ocp v cc d/st bd 6 3 c1 d2 r2 c2 t1 d p r ocp c v r bd1 dz bd e in e fly e in ?????R ?`?R 0 e fw1 e rev1 on a?R v d v bd(th1) v bd(th2) ?? 2 c bd r bd2 str-y6700 e rev2 0 e rev1 e fw1 M?? e rev2 gnd 4 s 3.0v ?X 6.0v ? 7-13 bd ???? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.16 ? c bd ? c bd ??? mosfet ?????? t ondly ? ? ??? v ds ?? e rev2 bd ?? drain id ?? c bd ??????? 7-12 ? v ds ?????? v ds ??????? 7-14 ? ????????? c bd ? v ds ????? ? v ds ?????? v ds ??????? 7-15 ???????????? c bd ? v ds ????? ? c bd ???? 1000pf ? v ds 0 i off 0 a?R a?R ?? `?????? ?? `??????W on on v p r c l 2 1 f ? ? P ? f r i d 0 v bd 0 v d 0 v ds 0 i off 0 i d 0 v bd 0 v d 0 v bd(th1) v bd(th2) v bd(th2) v bd(th1) ? 7-14 v ds ?????? ? 7-15 v ds ????? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.17 7.3.3 bd blanking ? bd ??? 1 ? 2 ????? 7-16 ? ? 1 2 ? n p /n s ????? ???? mosfet ??? bd ??? ? bd ???????? ?????? bd ? 250ns(max) ic ?????? mosfet ???? ???1 mosfet ????? mosfet ??? ?? ? c bd ? bd gnd ? ? bd gnd ???? ? 1 ? ? clamp snubber ? ?? bd ???? bd gnd ?????? e rev2 e rev2 bd ? ( ???Y? ) ??? bd ? ( ???Y? ) v bd(th1) = 0.24v v bd(th2) = 0.17v bd ??????rg 250ns max v bd(th1) = 0.24v v bd(th2) = 0.17v ? 7-16 ?? ocp ?? ocp ? ?? ocp ? ??? bd ? 250ns(max) free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.18 7.3.4 bottom skip ? 7.3.1 ?????~?????? bottom skip ???? ? s/ocp ?? 2 ???? ??????~?? bottom skip ?? ? 7-17 ???? 7-18 ??????.(??? ?????? v ocp(h) =0.910v ) ic ?????? standby ? 1 bottom skip ? ? ??? ? 1 bottom skip ??? ? 7-17 1 bottom skip ???drain ?on ?? s/ocp ???????? s/ocp ??? v ocp(bs1) ? ? ? 1 bottom skip ?? ? 7-18 ???drain ?on ? ?? s/ocp ??????? s/ocp ?? v ocp(bs2) 1 bottom skip ? ??? ? 7-18 ? ?????? ? 7-17 ? ?????? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.19 ? 7-19 ???/?????????? ??????????? ?????? 7-20 ? ???? bottom skip ?????? ??? 1.0s ????? e rev2 ??? 1 ? v bd(th1) = 0.34v(max) ??? 2 ? v bd(th2) = 0.27v(max) ? ? 7-19 ???? ? 7-20 ?? (a) ?? (b) bottom skip ? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.20 ? 7-19 auto-standby ? ?????k io id ????? ?? ??????? ?? 7.4 auto-standby auto-standby ???? i d ic ??? burst s/ocp ? id s/ocp ?? auto-standby ???( v ocp(stbin) =0.0 91 v 9%) ?? standby ??(? 7-20)????? fb/olp ?? v fb(stbop) ??(burst ) burst ???????? ???????burst ??? khz ??burst ? ?(20~20khz)??? str-y6700 ? burst ?????? step on burst ? ????? burst ??? v cc ???????? v cc(bias) = 11.0v bias-assist ???? i cc(startup) ? v cc ?????? ?? burst bias-assist ? ic ??? ?? v cc ??? v cc(bias) ???? 7-5 r2 ??? 7.5 ? ovp v cc gnd ?? ovp ?? v cc (ovp) = 31.5v(typ) ??? ?? ???????? v cc ????? v cc(bias) = 11.0v bias-assist ? bias-assist ??? v cc ??????? ? v cc(off) = 9.4v ?? ???????? v cc ?? v cc(off) ? v cc ?????? v cc ????? ????? ??? 2 ??1?? ???? ----- (2) ) ( 5 . 31 v out(ovp) typ v v cc out ?R ?r ?r?R P ? standby ?? v ocp ( stbin ) =v ocp ( h ) 9% burst drain standb y free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.21 7.6 ? olp ? (olp) ??? 7-22 ? ?? ocp ?????? ???2 ? ? fb/olp ? c4 ?? v fb(max) = 4.05v ??? i fb(olp) = 10 a typ c4 fb/olp ??? olp ??? v fb(olp) = 5.96 v ????? ? 7.5 ? ovp ????(latch off) ???????? v cc ?? v cc(off) ? fb/olp ?? v fb(max) = 4.05v v fb(olp) = 5.96v ?? olp ?? t dly ? c3 c4 ??? olp ?? t dly ?? i fb(olp) = ? 10 a ? ?? 4 ? ? ? ? ? ? ? 10 4 c v 05 . 4 v 96 . 5 i 4 c v v t ) olp ( fb ) max ( fb ) olp ( fb dly ? ? ? ? ? ? P -----(4) c4= 4.7 f ? t dly ?? 0.9s r1 ??? 47k ? 45 fb/olp gnd i fb c4 c3 r1 pc1 v cc ?R fb/olp ?R v fb(olp) = 5.96v v fb(max) = 4.05v i fb(olp) ? v cc(bias) ?? i d t dly ??R ? v cc(off) ? 7-22 olp ?????? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.22 ??????? 7-23 ?? fb/olp gnd ? 220k k i fb(olp) ? ?????? v cc ?? c2 ? 7-1 ??? ?????? ic ?? 7.7 ? tsd ic ??????? t j(tsd) = 135 min ? ? tsd 7.5 ? ovp ????(latch off) ???????? v cc ?? v cc(off) ? v cc ?R fb/olp ?R v fb(olp) = 5.96v v cc(off) v cc(on) ?? i d 45 fb/olp gnd i fb c3 220k pc1 ? 7-23 olp ????? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.23 7.8 ocp (ocp) ? s/ocp gnd ?? r ocp ??? mosfet ? r ocp ?????(?) v ocp(h) = 0.910v mosfet ???pulse-by-pulse ? 7.8.1 ? converter???( ac85v ac265v )????? ???????? ? r ocp ????????? ??? i out(ocp ???? ? 2 (? 7-24 ) ? str-y6700 ?? i out ? i out(ocp ? 7-24 ? ?? ? ???? i out(ocp i out ? 7-24 ? ????? i out(ocp i out ? 7-24 ocp /? ? ? a? ma ^?a i out ???? i out 85v 265v ??R v ? ? ? ?? v ? i out xe+e#q ???&,e?*+e#q free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.24 ? 7-25 ??? e fw1 e fw2 ? 7-26 ??? ??? v ocp(h) ' bd ?? e fw2 ??? 7-27 ? ???????(?) d ? e fw1 ??? 7-25 ? e fw1 ? dz bd ?? r bd1 r bd2 ? bd ?? 7-27 e fw2 ?????? v ocp(h) ' ?? ? dz bd ? dz bd ?? v z ????????? ?? v z = 6.8v 30v ? r bd1 ? 7.3.2 ??? ?? ? ? r bd2 ?? 1.0k ? ??? ??? i out(ocp) ? ??? 7-24 ? ????? iout v ocp(h) ' bottom skip ??? 1 v ocp(bs1) ? ? s/ocp ??? v ocp(h) ' bottom skip ?????? bottom skip ??????? mosfet ? ??????? e fw2 b d ??? 6 gnd v cc bd s/ocp 4 3 2 d2 r2 c2 t1 d r ocp r bd2 r bd1 dz bd c bd ??R? ?`?R e fw2 ?????R e rev1 ?`?R e fw1 e fw1 e fw2 100v 230v ac ac 0 0 v z a_? e fw1 -v z = 0v ?? v dzbd ? 7-25 ? 7-26 ??? e fw1 e fw2 ? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.25 ??????? 7-28 ? ? v dzbd R e fw1 ? a ? e fw2 ??????? ? v ocp(h) ? v dzbd < e fw1 ? b d ? e fw1 dz bd ?? v z ? e fw2 ? e fw2 ??? ?(?) v ocp(h) e fw2 ?????? bd ??? e fw2 = ? 3.0v e fw2 ????????? e fw2 ????? v ocp(h) ' ? 7-27 min max ? 0 0.2 0.4 0.6 0.8 1 -6 -5 -4 -3 -2 -1 0 ? 7-27 ???? v ocp(h) ' ( ?? ) ?? v ocp(h) ' (v) bd ?? e fw2 (v) max typ min v ocp ( h ) = 0.910 0 ? 1 ? 2 ? 3 ? 4 ? 5 ? 6 ? 7-28 ???? ?? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.26 7.8.2 bd ??? ?? 85v 265v ???? ac120v ???? 1 n p = 40t n d = 5t bd ??? ac120v ? e fw1 1? 5 ??? dz bd ?? v z 2 v n n e ) ac ( in p d 1 fw ? ? ? ------(5) v 2 . 1 2 2 20 1 40 5 ? ? ? 21.2v e ?? 22v ? v z = 22v ?? v in(ac) ? ac265v ??? e fw2 = ? 3.0v r bd1 1? 6 ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 fw bd ) ac ( in p d 2 fw 2 bd 1 bd e z 2 v n n e r r ------(6) k 28 . 7 3 2 2 2 265 40 5 3 k 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? 7.28k ? e ?? r bd1 = 7.5k ? r bd2 = 1.0k ? ? v in(ac) =265v ? e fw2 | ?1? 7 ? ?? bd 1 fw 2 bd 1 bd 2 bd 2 fw z e r r r e ? ? ? ? ------(7) v 92 . 2 22 2 265 40 5 1k 7.5k 1k ? ? ? ? ? ? ? ? ? ? ? ? 7-27 ? e fw2 = ? 2.92v ????? v ocp(h) ' ? 0.66v(typ) ? 7-13 ?? e rev2 ?? r bd2 = 1k ? r bd1 = 7.5k ? v f = 0.7v e rev1 = 20v ??? 8 ? ?? f 1 rev 2 bd 1 bd 2 bd 2 rev v e r r r e ? ? ? ? ------(8) ?? v 27 . 2 7 . 0 20 k 5 . 7 k 1 k 1 ? ? ? ? ? ??? e rev2 ??? 1 v bd(th1) = 0.24v e fw2 e rev2 bd ? 6.0v +6.0v ? 8 ? pfc ???????? ???? dz bd ???? bd ?? ? ????? 9 ?????? ?R ? ? p d fw1 n n e ------(9) free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.27 9 ??? ??? 2 ?? pulse-by-pulse s/ocp ?? ????? ? v ocp(h) ??? ? v ocp(h) ' ? 7-27 pulse-by-pulse ? ? 2 ??????? s/ocp ??? v ocp(la.off) = 1.83v ????? latch off ????? ???????? v cc ?? v cc(off) ? 7.3 on ?? ?????????? on/off ??? mosfet on ?? ? on ? t on(max) =40 s ? 7-29 ? drain ??? ???????? mosfet on ?? t on(max) ????? t on(max) ??? mosfet on ?? t on(max) ???? ?? ? ??? l p ?? ? 1 2 ??? on duty 8 ?? ? 7-29 on ?? free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.28 8.1 ? ??? ? ????? ? ? ? ? ?????? high-ripple ?? ? ??? ? ??????? ????????????????? ?? 3 4a/mm 2 ??????????? ???? ?? - ? - ? - ?? ? r ocp ??? ???k ? ? surge ?? 8.2 ? ? rcc ? ringing choke converter ? ???? ???????duty ? ? duty 1 n p 2 n s ? on duty ?? d on ??? 1 l p ' ? 10 ?? 2 v 0 on ) min ( in 1 0 o 2 on ) min ( in p c f d e f 2p d e ' l ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? -----(10) l p ' o p 0 f ?? v c ? 1 ? ?? on d v in ac ? on duty ? fly ) min ( in fly on e e e d ? ? ) min ( in e v in ac ? c1 ? fly e ? ? ?? f o s p fly v v n n e ? ? ? f v d3 ? ? 8-1 ? t1 s e in n p n s l p c v e fly i d i off v o c6 v f c1 d3 p free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.29 ???? i dp ??1?? v p ondly c ' l t ? ? ----- (11) ?? ondly 0 on on t f 1 d ' d ? ? ? ----- (12) in(min) 2 o in e 1 p i ? ? ----- (13) ' d i 2 i on in dp ? ? ----- (14) value al ' l n p p ? ? ----- (15) ?? fly f o p s e v v n n ? ? ? ----- (16) ? ondly t ?? in i ? 2 ? ?? dp i ?? ' on d on duty o v 2 ? on duty ?? f 0 ?1?? ?? 2 on ) min ( in v p v 2 on ) min ( in 1 o 1 o 0 d e c 2 ' l c d e 4 2p 2p f ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? -----(17) ??? al-value ?? ni-limit at ???? al-value ? ni-limit at 1 np drain ? idp(dly) ?? ni-limit at ( ) dly ( dp p i n ? ? ) ? ni-limit vs. al-value ??????? ni-limit ??? 30% ?? 8-2 ni-limit vs. al-value ?? ni-limit (at) ? 8-2 ni-limit vs. al-value free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.30 ? 8- 5 ? ( ) 8.3 ?? tl431(u2) ? 2 ???? 8- 3? ? c 7 ?? 0.047 f 0.47 f ???? ? 8-4 ? fb/olp gnd ?? c3 ??? c 3 ?? 470pf 0.01 f ????? 8.4 ? pcb ????? ? ? ?????????? pcb ? ??? ??? 8- 5 ????? ???? ????? ? ???????? ???? ?? ???? ???? ??????? mosfet ? r ds(on) ??????? ic ?????? 8-6 ? ? ic ?? (1) mosfet ? s/ocp s/ocp r ocp c1 t1(p ) d/st ? ????????? ic c1 ????? ic ?? ??? ( ?? 0.1uf ? ) (2) gnd gnd ? c2( ) t1(d ) r2 d 2 c2(+ ) v cc ? ??????? ic c2 ?? v cc gnd ??? 0.1 f ~1 f) ? 8-4 fb/olp ?? t1 d3 c6 r3 r4 u2 r6 r8 c7 s pc1 r5 r7 l1 c8 vout gnd ? 8-3 2 tl431 u2 ?? pc1 c3 r ocp 2 45 s/ocp fb/olp gnd str-y6700 i fb free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.31 (3) r ocp r ocp s/ocp ? ?????????? gnd ? r ocp r ocp ????? gnd ? 8- 6 a ? ? 2 ? t1 s d3 c6 ??? 2 ?t????? ?????? mosfet ???? 2 ???y?? mosfet ?? clamp snubber ? ??? ? 8-6 ?? nf gnd fb/olp s/ocp v cc d/st 2 1 7 5 4 23 str-y6700 6 bd c1 d2 r2 c2 t1 d3 c6 d p s pc1 c4 r ocp c5 c v ?` gnd ?` a r1 dz bd r bd1 2 ??` ?? v cc c3 r bd2 c bd u1 free datasheet http:///
str-y6700 ??? rev.2.0 copy right: sanken electric co., ltd. page.32 ? ? Y??d?????????? ??H???????_J ? ?d?????| ???? ???I??? ?}????? ?? ? ?|m??????u???_??????k ???????Y??1?1???p??k ???????????????O??_J?? ? ?d?u????Cu???C???C?yC?? ??????? ?m????????C???????N ?????????????C? ?L??????? ???????? O??m??????C ?S??C?? ??????????? ? ??????N??O??????` ??????m??????? ?`????m?_????????XpO ?`?????]?????`???????? ??R?????????? ?????h???? k?????????g?????? ]?? ??`??`?i ic ??k??????( tj )?`? ??m????????????] ? ?d?u??????u?u???M??? ??u????a??I??????? ??????? ? ?d?u??O????? ? W???u????????????? ? Y??d?????Z???}u? free datasheet http:///

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