innovative power tm - 1 - www.active-semi.com copyright ? 2012 active-semi, inc. active direct drive? and active valley fill? are trademarks of active-semi ACT801 active direct drive? led driver features ? highest efficiency solution up to 8w ? high power factor (> 0.90) ? low total harmonic distortion ? low component count ? low emi ? low crest factor ? no flicker ? low strobe light motion effect ? no electrolytic capacitor ? no magnetic components ? over temperature protection ? over current protection ? brightness stability over ac line voltage variation ? space-saving, thermally-enhanced sop-16 ep (exposed pad) package ? ACT801 for 100-120vac application applications ? solid state lighting (ssl) ? led light bulbs ? replacement of lamps for 100-120vac general description the ACT801 are led driver ics based on active- semi's patented active direct drive tm technology and patent-pending active valley fill tm that adaptively drives a string of variable-weighted led segments up to 8w directly from an ac line voltage with very few total components. by adaptively modulating the variable-segment-weighted led string voltage to match the varying ac line voltage, the active direct drive tm technology results in the ACT801 having highest efficiency, high power factor (> 0.90), and low total harmonic distortion. the high efficiency and high performance make the ACT801 ideal for advanced energy saving solid state lighting applications and eases thermal design. with very few external components, the ACT801 ensures high reliability and long life time for led- based luminaire designs. in addition, the ic protects the leds from over current, and over temperature conditions. the ACT801 are optimized to operate at 100-120vac and non-dimmable application up to 8w. the ACT801 also incorporate active-semi's patent- pending active valley fill tm technology for maintaining smooth light output for the full ac cycle, enabling the leds to operate without noticeable flicker or strobe light moti on effects. these devices drive the led string without high frequency switching. the ACT801 are available in the sop-16ep package. typical application diagram product brief, 22-oct-12
ACT801 innovative power tm - 2 - www.active-semi.com copyright ? 2012 active-semi, inc. active direct drive? and active valley fill? are trademarks of active-semi product brief, 22-oct-12 pin configuration top view sop-16ep ordering information c d c : all active-semi components are rohs compliant and with pb-free plating unless specified differently. the term pb-free means semiconductor products that are in compliance with current rohs (restriction of haza rdous substances) standards. d : standard product options are identified in this table. contact factory for custom options. part number temperature range package pins packing method ACT801yk-t -40c to 125c sop-16ep 16 tape & reel 1 2 3 4 9 5 6 7 8 10 11 12 13 14 15 16 ep (vss) ACT801 vin n/c n/c vn n/c n/c iset mode n/c swd vp top swc swb swa ireg
ACT801 innovative power tm - 3 - www.active-semi.com copyright ? 2012 active-semi, inc. active direct drive? and active valley fill? are trademarks of active-semi product brief, 22-oct-12 pin descriptions pin name description 1 vin voltage input. connect to the positiv e output of the full bridge rectifier. 2 n/c not connected. 3 n/c not connected. 4 vn negative supply voltage. connect to the negative output of the fu ll bridge rectifier. 5 n/c not connected. 6 n/c not connected. 7 iset current setting. connect a resistor between iset and vss to determine the led current. 8 mode mode selection. 9 ireg current regulation output. co nnect to the bottom of led string. 10 swa led switch a. 11 swb led switch b. 12 swc led switch c. 13 swd led switch d. 14 top led string top. connec t to the top of led string. 15 n/c not connected. 16 vp positive supply voltage. connect a ceramic capacitor with appropriate voltage rating between vp pin and vss pin. ep vss ground. exposed pad shown as dashed block. t he exposed ground pad must be electrically connected to ground.
ACT801 innovative power tm - 4 - www.active-semi.com copyright ? 2012 active-semi, inc. active direct drive? and active valley fill? are trademarks of active-semi product brief, 22-oct-12 sop-16 ep (exposed paddle) pac kage outline and dimensions symbol dimension in millimeters dimension in inches min max min max a 1.350 1.700 0.053 0.067 a1 0.020 0.120 0.001 0.005 a2 1.350 1.550 0.053 0.061 b 0.380 0.470 0.015 0.019 c 0.200 0.250 0.008 0.010 d 9.860 10.06 0.388 0.396 d1 3.300 4.000 0.130 0.157 e 3.800 4.000 0.150 0.157 e1 5.800 6.200 0.228 0.244 e2 1.780 2.500 0.070 0.098 e 1.270 typ 0.050 typ l 0.450 0.800 0.018 0.031 0 8 0 8 e1 e2 d1 b e l c d a a2 e a1 active-semi, inc. reserves the right to modify the circuitry or specifications without notice. user s should evaluate each product to make sure that it is suitable for their applicat ions. active-semi products are not intended or authorized for use as critical components in life-support dev ices or systems. active-semi, inc. does not assume any liability arising out of the use of any product or circuit described in this datasheet, nor does it convey any patent license. active-semi and its logo are trademarks of active-semi, inc. for more information on this and other products, contact sales@active-semi.com or visit http://www.active-semi.com . is a registered trademark of active-semi.
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