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electronic giant EG1121 ??? ??????? 201 7 ? ???? ? rev 1.0
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 1 / 1 ? v1.0 2017 0 4 20 EG1121 ?
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 1 / 1 ? ? 1. ................................ ................................ ................................ ................................ ................................ ..... 1 2. ................................ ................................ ................................ ................................ ................................ ..... 1 3. ? ................................ ................................ ................................ ................................ ............................. 2 4. ................................ ................................ ................................ ................................ ................................ ..... 2 4.1 ? ................................ ................................ ................................ ................................ ................... 2 4.2 ................................ ................................ ................................ ................................ ................... 2 5. ?? ................................ ................................ ................................ ................................ ............................. 3 6. ?? ................................ ................................ ................................ ................................ ..................... 4 7. ................................ ................................ ................................ ................................ ............................. 5 7.1 ? ................................ ................................ ................................ ................................ ................... 5 7.2 ? ................................ ................................ ................................ ................................ ................... 5 7.3 ................................ ................................ ................................ ................................ ................... 7 8. ?? ................................ ................................ ................................ ................................ ............................. 8 8.1 sot23 - 6 ?? ................................ ................................ ................................ ................................ ..... 8
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 1 / 8 EG1121 ?? 1. ? ???? ?? sel ? ?? sel=gnd ? ?????? ? ? ??? ? <70mw ? 4% ? ? ?????? ? ??? slp otp ocp ? leb ?? 2. EG1121 ?? ? ???? ??? sel ?? ?? led ? ? ???? EG1121 ???? ??? ?????? ???? ? ?????????? ?????? ????????? ? EG1121 ?? vdd ?? uvlo vdd ? ovp ocp slp gate vdd
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 2 / 8 3. ? ? ? ? ? ? led 4. 4.1 ? ? 4 - 1. EG1121 ?? 4.2 1 gnd ? 2 gate ? mosfet ? 3 cs 4 fb ??? cc ?? cv ?? ??? 5 sel ????? ? psr ?? sel ?? sel=gnd 6 vdd ??? e g 1 1 2 1 1 2 3 5 4 6
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 3 / 8 5. ?? ? 5 - 1. EG1121 ?? q r - b u c k p s r - c c m p s r - c v m ? o r s r q ? p w m g a t e s e l i s e l s l p o t p v d d o v p o r c d c f b c v 2 v v e a v e a p w m 0 . 7 v f b _ s a m p l e c o m p t d e m t d e m 0 . 7 v c o m p c s l e b ? t o n f b _ s a m p l e 3 0 v 1 6 . 3 v / 9 v c s 3 4 . 5 v v d d o v p p o r ? ?
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 4 / 8 6. ?? ? 6 - 1. EG1121 ? 6 - 2 . EG1121 led ?
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 5 / 8 7. 7.1 ? ? ??? 34.5 v ?? 10 ma gate 20 v cs,sel ? - 0.3 ~ 7 v fb ? - 0.7 ~ 7 v sot - 26 ? 250 /w ? 150 ? - 40 ~ 85 ? - 65 ~ 150 ? 260 esd hbm 3 k v esd mm 250 v ???????????????? 7.2 ? ? t a = 25 ?? ivdd_st 2 20 ua vdd_op v(fb)=3v,gate=0.5nf vdd=20v 1 1.5 ma ivdd_standby 0.5 1 ma ? ?? ? vdd_on 15 16.3 17.5 v ?? ? vdd_off 8 9 10 v vdd ovp ? vdd_ovp 28 30 32 v vdd ?? vdd_clamp i vdd =7ma 32.5 34.5 36.5 v
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 6 / 8 ?? ?? vfb_ref 1.97 2.0 2.03 v vfb_slp 0.7 v ?? tfb_short 10 ms ???? vfb_dem 25 mv ??? toff_min 2 us ??? toff_max 5 ms ??? icable_max 63 ua ? ?? tleb 500 ns ? vcs(max) 490 500 510 mv ? td_ocp g ate=0.5nf 100 ns ? ? ? vdd=24v 16 v ? t_r gate=0.5nf 700 ns ?? t_f gate=0.5nf 40 ns ???? sel ???? vsel( ) 5.7 v sel ?? isel 35 ua ?? tsd 165 ?? trc 135
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 7 / 8 7.3 ? 7 - 1. ? vdd ??? vs ? ? 7 - 2. vdd ??? vs ? ? 7 - 3. ?? vs ? ? 7 - 4. ? vs ? ? 7 - 5. ??? vs ? ? 7 - 6. vs ?
???? EG1121 ?? ?????? 2017 ? ???? ? www.egmicro.com 8 / 8 8. ?? 8.1 sot23 - 6 ??

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