CP2162 v1.0 product brief led driver series 6 channel, 1x/1.5x common anode adaptive charge pump parallel led driver with 1-wire pulse counting dimming control general description 3mm*3mm q f n 16l -40 85 the cp21 62, a 1x/1.5x common ano de adaptive cha r ge pum p parallel led driver, i s ideally suit ed for a ll applicatio ns po wered by a singl e li-ion battery cell with inpu t voltage varying betwe en 2.7v to 5.5v. the cp216 2 prov ides up to 2 5 ma led cu rre nt per ch annel, set b y an internal resistor. high efficiency is achieved by ut ilizing a 1x/1.5x adaptive fra c t i onal conversion tech ni qu e base d on th e sup p ly voltage and the out put voltage. the uniqu e auto-mirro r tm technol o g y is introdu ce d in cp216 2, whi c h ca n gua ra ntee a con s ta nt led curre n t in variou s ope rating con d itions. the CP2162 uses the 1-wire pulse cou n ting techniqu e to adjust the br igh t ness of leds, with the pulse sign al on th e en/set pin, the led cu rre n t varies a c cordin g to 32 steps logarith m ic scale. only two 1f i nput/output cap a ci tors an d two 1f flying capa ci tors a r e ne eded for p r oper o p e r ati on. the su perio r architectu re ensure s low inrush curre n t and low emi. the c p 2162 adopt s 3mm* 3mm qf n 16 l packa ge. features y drive s up to 6 leds at 25 ma each cha nnel y 1-wire p u lse cou n ting dim m i ng: 32 step s loga rithmi c scale y led cu rrent matchin g : 1 % (typical) y high effici en cy by adaptive mode se l e cti on between 1 x and 1.5x mode s y therm a l sh utdown prote c ti on and ove r -current prote c t i on y low in put rip p le and lo w emi y fixed 1mhz switchi ng freq uen cy y supply voltage rang e: 2.7~5.5v y ultra-sm all 3mm *3mm qfn package y shutdown cu rrent less than 0.1a y ro hs com p li ant and 10 0 % lead(pb )-f ree applications y mobile ph one s y digital still camera y mp3 players y pda copyri ght ? 2007 chipho m e r te chn o log y limited 1
CP2162 v1.0 product brief led driver series 6 channel, 1x/1.5x common anode adaptive charge pump parallel led driver with 1-wire pulse counting dimming control pin configuration ty pical application c i rcuit cp 2 162 c2 n c1 n c1 p c2p 1 f vi n 1 f ci n d 1 d 2 d 3 d 4 vou t agn d pg n d c2 c1 li - i on ba tt er y + - 1 f cou t 1 f d 5 en 1- w i r e p u l s e co unt ing dimming d 6 con t ac t w i th chiphomer 4f, building d, 1618 yish an ro ad sha nghai, 20 110 3, p.r.c. tel: (86 ) 21 -6 4014 543 6 4 0 5848 8 fax: (86)21-6 4050 030 sale: sales@chiphomer.com tech nical su pport: suppo rt@chi pho mer.com web site: www.chi phom er. c om shenzhen off i ce: 10d, buildin g 2, dushi yan ggua ng ga rd en ch ego n g m iao, futian distri ct, shen zhe n , 5180 48 , p.r.c. tel: (86 ) 75 5-8 204 6706 8 204 77 89 fax: (86 ) 75 5-8 204 670 copyri ght ? 2007 chipho m e r te chn o log y limited 2
|
