rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 2 9/4/2012 SE1025 40v 500ma led ?? typical application ?? general description ? SE1025 ? led ??? ? 450m ?? 40v mosfet ???????? ??????? ???????? ??????? iset ??? features( ?? ? ? 450m ?? ? ?? 40v ? 4 ??? ? ??? ? ? ?? ? ?? applications( ??? ? led ? ? ? ? led ? led
rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 3 9/4/2012 SE1025 40v 500ma led ?? pin configuration ? top view pin description ?? no. pin name pin function description 1 l1 led ?? led 2 gnd ???? 3 iset ??? 4 st ?? 5 vin ??? 6 l2 led ?? led functional block diagram ??
rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 4 9/4/2012 SE1025 40v 500ma led ?? ordering information (?) device marking information package v out SE1025 s1025 sot23-6 n/a absolute maximum ratings( ? ) symbol parameter maximum units v in input voltage -0.3 40 v v l1 voltage at l1 pin -0.3 40 v v l2 voltage at l2 pin -0.3 40 v v iset voltage at iset pin -0.3 1.5 v v st voltage at st pin -0.3 5 v p tr1 thermal resistance(sot23-6) ja 220 /w t stg storage temperature -55 to 150 t solder package lead soldering temperature 260 , 10s n/a esd hbm(human body mode) 2 kv note1: exceeding these ratings may damage the device.
rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 5 9/4/2012 SE1025 40v 500ma led ?? recommended operating conditions( ? ) symbol parameter maximum units v in supply voltage 5.5 to 40 v i out output current 100~700 ma t otp operating temperature -40 to +85 note note2: the device is not guaranteed to function outside of its operating rating. electrical characteristics( ) (vin =30v, iout=300ma, ta = 25c unless otherwise specified) symbol items test conditions min typ max unit v in input voltage 5.5 40 v uvlo under voltage lockout 4 v i vin operating current 120 130 a otp thermal shutdown temperature 110 r on l1, l2 on resistance (note 3) 450 500 m ? i leak l1, l2 leakage current v in 30v 0.01 1 a v iset night lighting r iset =20 ? 170 200 230 mv short circuit protection i limit l1, l2 current limit 0.7 1 1.5 a switch cycle t cycle switch cycle 100 130 160 ms
rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 6 9/4/2012 SE1025 40v 500ma led ?? applications information ( ?? ) ? operation description ? ?? SE1025 4 ???? st ????? st ? 200ms ??????? iset ? 100k ?b ? ??? st ?? l1 ? l2 ? ? st ?????? l1 ?? l2 ? ? st ?????? l1 l2 ??? ? st ????? l1 l2 ??? ? st ??????? l1 ? l2 ??? ??? + ? 5
l+ ? 6
l 5 4 4 ? ? ? iset ?? 500k ? ??? st ?? l1 ? l2 ? ? st ?????? l1 ?? l2 ? ? st ?????? l1 l2 ??? ? st ?????? l1 ? l2 ??? ? ? ????? 115 SE1025 ? l1 l2 mos ???? ???? 105 ???? vin ? ? ??? l1 l2 ? 2.5a ? 1ms ??? l1 l2
rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 7 9/4/2012 SE1025 40v 500ma led ?? mos ??????? vin ? ? uvlo vin ? 5v ?????? l1 l2 mos ?? ?? vin ? 5.8v ?
rev 1.0 preliminary and all contents are subject to change without prior notice. ? seaward electronics, inc., ? www.seawardinc.com ? page 8 9/4/2012 SE1025 40v 500ma led ?? outline drawing for sot23-6 ?? sot23-6 ?? ???? ? ? ??? 22 ???? b ?? 100085 :010-82895700/1/5 :010-82895706 seaward electronics corporation ? ? 2f, #181, sec. 3, minquan east rd, ta i p e i , ta i w a n r . o . c : 886-2-2712-0307 : 886-2-2712-0191 seaward electronics incorporated ? 1512 centre pointe dr. milpitas, ca95035, usa : 1-408-821-6600
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