technical data KK1503 features ? si ngl e 3v bat t e ry operat i on ? low st and-by current ? no external r-c com pone nt required for oscillation ? di rect dri v e leds (open-drai n out put ) functions ? one shot m ode ? fl ash r a t e 4,7 hz ? duty cycle 1/4 ? fl ash durat i on 4.3 sec ? altern ativ e o u t p u t s description the kk 1503 is a cmos lsi leds driver circuit. an au to m a tic cu t o ff fu n c tio n is b u ilt in to lo wer th e cu rren t co n s u m p tio n . the m e t a l m a sk can be m odi fi ed i n order to adjust the flashing rate, the duty cycl e and the tim e of flash to a particular val u e. b e si des, t w o out put leds can be fl ashed i n phase or al t e rnat i v e by m a sk sel ect i on. absolute maximum ratings charact erist i c s y m b o l v a l u e unit supply voltage v dd - v ss - 0. 3 ~ + 5. 0 v i nput voltage v in v ss - 0. 2 ~ v dd + 0. 2 v operating tem p erature t a - 10 ~ + 60 o c storage tem p erature t stg - 55 ~ + 125 o c electrical characteristics (ta = 2 5 o c; v dd = 3. 0v; v ss = 0v unless other w ise specified) charact erist i c s y m b ol test condition min typ max unit operating voltage v dd 2 . 4 3. 0 3. 6 v standby i dd1 no playin g p open 0 . 1 2. 5 a cur r e nt consum ption i dd2 play ing q1, q2 open 5 0 1 0 0 a i nput cur r e nt ( p ) i il v il = 0. 8v 10 50 a i ih v ih = 3. 0v 0. 5 1 a ou tp u t cu rren t (q1 , q2 ) i ol v ol = 0. 5v 6 10 m a oscillating frequency f osc 5 4 76. 8 1 0 0 k h z oscillating start voltage v st r 2 . 4 v timing diagram t = one duration 1
KK1503 typical application circuit 1. connect the circuit as fig.2 w h en th e switch sw 1 is p r essed , th e lev e l m o d e i is selected an d th e leds will flash as in fig . 1 fig . 2 press switch sw1 to p l ay o n e s. q2 p q1 v dd v ss - + sw 1 pad layout kk 1503 pad diagram ch i p s i z e : 13 50 x 90 0 p a d si ze : 1 0 0 x 1 0 0 u n i t : m 1 2 3 4 5 6 7 8 9 y x (0 , 0 ) pad location ( unit: m ) no. pad nam e x y no . pad nam e x y 1 v ss 5 4 3 - 3 1 1 6 o s c o - 2 7 5 3 2 0 2 n o t c o n n e c t e d 5 4 3 - 1 5 1 7 q 1 - 5 3 1 3 2 0 3 p 5 4 3 4 8 q 2 - 5 3 1 - 1 4 8 4 t 1 5 4 3 1 6 4 9 v dd - 5 3 1 - 3 1 1 5 o s c i 5 4 3 3 2 4 note: the substrate is connected to v dd . 2
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