CL6807 2008-09-09 ? 35 mos 1a led CL6807 ???? led ?? led ? ???? led ?? 6v 35v ??????? 1a ???????? 25 ? CL6807 ????, ??? ???? pwm ? adj adj ?? 0.5v ? ?????????? CL6807 ??? sot89-5 ? ? ? 6v 35v ? 1a ?????? pwm ?? ???? 5 ? led ? 95 ?? ??K ? led I??? ?? led ? ?? ?? ?? ???? www.datasheet.co.kr datasheet pdf - http://www..net/
2 2008-09-09 semiconductor CL6807 ? - . ?? ? 1 lx lx ? n mos ?? 2 gnd ?????? 3 adj ??????? 4 isns 5 vin ?? ?? (?1) ? v in ? -0.3~35 v lx ?mos? -0.3~35 v isns ( vin ) +0.3~(-5.0) v adj ? -0.3~6 v p dmax (? 2 ) ?? w p tr , sot89-5 ja 45 c /w t j ? -40 to 150 c t stg ? -55 to 150 c esd ?(?3) 2 kv ? ? v in v dd ? 0 ~ 35 v t opt ? -40 to +85 c ? 1: ?????? ???2? ??? ???? ??????? ? 2:???? t jmax , ja ,?? t a ? ? p dmax = (t jmax - t a )/ ja ???? ? 3: ??, 100pf ? 1.5k ? www.datasheet.co.kr datasheet pdf - http://www..net/
3 2008-09-09 semiconductor CL6807 (?4, 5) v in =v en =3.6v, ?????? 25 ? ? ? ? v in ?? 6 35 v v uvlo ?? v in ? 5.5 6 6.5 v v uvlo, hys uvlo ?? v in ?? 500 mv f sw ?? 1 mhz v isns ??? v in -v isns 95 100 105 mv v isns _ hys ? 15 % ? 30 % i isns isns v in -v isns =100mv 8 a i off ? ? 75 a i op ?? 1.8 ma v adj _ h adj ? 2.5 v v adj _ l adj ? 0.5 v v adj _ dc ?? 0.5 2.5 v f adj adj ? 20 khz ???? f adj < 500hz 0.01 1 d pwm _ lf ?? 100:1 ???? f adj > 10khz 0.2 1 d pwm _ hf ?? 5:1 i adj h adj ?? v adj = 5v -1 +1 ua i adj _ l adj ?? v adj = 0 10 1 ua r lx mos ?? i lx =1a 0.5 ? i lxmean mos 1 a i leak mos ? 0.5 5 a ? 4: ? 25 2? ? 5: ????????? www.datasheet.co.kr datasheet pdf - http://www..net/
4 2008-09-09 semiconductor CL6807 ?? - - + + driver logic current sense comparator uvlo comparator bandgap ref regulator adj buffer 1.25v adj isns vin lx gnd ?? ?? l1 rs ????? vin ?? l1 rs ???? ?? cs ??? ?mn lx ? ? vin ? rs l1 led ? (v in -v isns ) >115mv ? cs ??? ? nmos rs ??? (v in -v isns ) < 85mv ? nmos ?? wled ?? s s r mv r mv / 100 / 2 115 85 = ? ? ? ? ? ? + ???????? 1% ? ? wled ? 5% ??? 30v ?? CL6807 adj ? pwm ? 0.5v ????? 2.5v ?? ?? adj ????????????? led ??????? led ??? CL6807 ? ??????????????? adj ? ?? www.datasheet.co.kr datasheet pdf - http://www..net/
5 2008-09-09 semiconductor CL6807 ?? (uvlo) CL6807 ? 7v ? 500mv ????? vin 5.5v ? mos ??? vin 6v ? mos ??? 5v ? vcc ?? 5v ????? 10ma ? vcc ??? adj CL6807 adj ?pwm? adj ?? 0.5v ? led ????? adj ?? 2.5v ? led ? ?? ? r sense ? led CL6807 ? vin isns ??? led ?. ?: ) 5 . 2 5 . 0 ( 5 . 2 1 . 0 v v v rs v i adj adj out = ? CL6807 ???? 1 ? led ???? rsense ????????????? mos ?? ???????? rsense ???? ? mos ??????? l v vin r v n v n vin f sense led led sw ? = ) ( n led , vled ? led ??, v = (v sns_hi - v sns_lo ). www.datasheet.co.kr datasheet pdf - http://www..net/
6 2008-09-09 semiconductor CL6807 ?? ??????????????? ??????? ??????? led led ? led ????? led ??? led ? pcb ? ? pcb ?????????????? ?????????????? ???????? mos ????? vin - rsense - led --?- gnd ??? mos ???? rsense led - ???? rsense ??? vin ???? csn rsense kelvin ?????? www.datasheet.co.kr datasheet pdf - http://www..net/
7 2008-09-09 semiconductor CL6807 ?? sot89-5 ? ? ? a 1.400 1.600 b 0.320 0.520 b1 0.360 0.560 c 0.350 0.440 d 4.400 4.600 d1 1.400 1.800 e 2.300 2.600 e1 3.940 4.250 e 1500 typ e1 2.900 3.100 l 0.900 1.100 www.datasheet.co.kr datasheet pdf - http://www..net/
|
