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april 2012 ? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function fls0116 mosfet integrated smart led lamp driver ic with pfc function features ? built-in mosfet(1a/550v) ? digitally implemented active-pfc function ? no additional circuit for achieving high pf ? application input range: 80v ac ~ 308v ac ? built-in hv supplying circuit: self biasing ? aocp function with auto-restart mode ? built-in over-temperat ure protection (otp) ? cycle-by-cycle current limit ? current sense pin open protection ? low operating current: 0.85ma (typical) ? under-voltage lockout with 5v hysteresis ? programmable oscillation frequency ? programmable led current ? analog dimming function ? soft-start function ? precise internal reference: 3% applications ? led lamp for decorative lighting ? led lamp for low-power lighting fixture description the fls0116 led lamp driver is a simple ic with integrated mosfet and pfc function. the special ?adopted digital? technique aut omatically detects input voltage condition and sends an internal reference signal to achieve high power factor. when ac input is applied to the ic, the pfc functi on is automatically enabled. when dc input is applied to the ic, the pfc function is automatically disabled. the fls0116 does not need a bulk (electrolytic) capacitor for supply rail stability, which significantly improves led lamp life. figure 1. typical application ordering information part number operating temperature range package packing method FLS0116MX -40c to +125c 7-lead, small-outline int egrated circuit (soic), jedec ms-012, .150-inch, narrow body tape & reel
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 2 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function block diagram gnd rt vcc hv reference adim jfet aocp i ad uvlo q r s tsd leading-edge blanking zcd dac soft-start digital block cs oscillator - + leb - + time vcc zcd 2.5v fls0116 drain 7 8 1 3 4 5 2 figure 2. block diagram pin configuration fls0116 figure 3. pin configuration pin definitions pin # name description 1 cs current sense . limits output current, depending on the sens ing resistor voltage. the cs pin is also used to set the led current regulation. 2 vcc vcc . supply pin for stable ic operation; zcd si gnal detection used for accurate pfc function. 3 gnd ground . ground for the ic 4 rt rt . programmable operating frequency using an exte rnal resistor; the ic has pre-fixed frequency when this pin is open or floating. 5 adim analog dimming . connect to the internal current sour ce. use to change the output current using an external resistor. if adim is not us ed, connect a 0.1f bypa ss capacitor between the adim and gnd. 7 hv high voltage . connect to the high-voltage line and supply current to the ic. 8 drain drain . the drain pin of internal mosfet
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 3 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the devic e may not function or be operable above the recommended operating c onditions and stressing the parts to these levels is not recommended. in addition, extended exposure to stre sses above the recommended operating conditi ons may affect device reliability. the absolute maximum ratings are stress ratings only. symbol parameter min. max. unit v cc ic supply voltage 20 v hv high voltage sensing 550 v drain internal drain voltage 550 v v adim analog dimming 5 v v rt rt pin voltage 5 v v cs allowable current sensing detection voltage 5 v t a operating ambient te mperature range -40 +125 c t j operating junction temperature -40 +150 c t stg storage temperature range -65 +150 c ja thermal resistance junction-air (1,2) 135 c/w p d power dissipation 660 mw esd electrostatic discharge capability human body model, jesd22-a114 2000 v charged device model, jesd22-c101 1000 notes: 1. thermal resistance test board. si ze: 76.2mm x 114.3mm x 1.6mm (1s0p); je dec standard: jesd51-2, jesd51-3. 2. assume no ambient airflow.
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 4 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function electrical characteristics typical values are at t a = +25c. specifications to -40c ~ 125c are guaranteed by design based on final characterization results. symbol parameter condition min. typ. max. unit v cc bias section v cc v cc regulator output voltage v hv =100v dc 14.0 15.5 17.0 v v ccst+ uvlo positive-going threshold v cc increasing 12 13 14 v v ccst- uvlo negative-going threshold v cc decreasing 7 8 9 v v cchys uvlo hysteresis 4 5 6 v i hv hv pin current v hv =100v dc , rt=open 0.85 1.2 ma i st startup current 120 150 a switching section f osc operating frequency r t =5.95k 200 250 300 khz r t =87k 16 20 24 khz r t open 40.5 45.0 49.5 khz t min minimum on time (3) 400 ns d max maximum duty cycle 50 % t leb leading edge blanking time (3) 350 ns v rt voltage reference of rt pin 1.5 v soft-start section t ss soft-start time (3) dc mode 48 60 72 ms ac mode 7 periods reference section v cs1 internal reference voltage of cs pin dc mode 0.354 0.365 0.376 v v cs2 ac mode (3) 0.485 0.500 0.515 protection section ovp vcc over-voltage protection on vcc pin 17.7 18.7 19.7 v v aocp abnormal ocp level at cs pin (3) 2.5 v t aocp abnormal detection time (3) 70 ns t tsdh thermal shutdown threshold (3) 140 150 c t tsdhy thermal shutdown threshold hysteresis (3) 50 c dimming section v adim(st+) analog dimming positive going threshold (3) 3.15 3.50 3.85 v v adim(st-) analog dimming negative going threshold (3) 0.50 0.75 v i ad internal current source for adim pin 9 12 15 a continued on the following page?
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 5 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function electrical characteristics (continued) typical values are at t a = +25c. specifications to -40c ~ 125c are guaranteed by design based on final characterization results. symbol parameter condition min. typ. max. unit mosfet section bv dss breakdown voltage v cc =0v, i d =250 a 550 v i lkmos internal mosfet leakage current v ds =550v dc , v gs =0v 250 a r on(on) drain-source on resistance (3) v gs =10v, v dgs =0v, t c =25c 7.3 10.0 c iss input capacitance (3) v gs =0v,v ds =25v, f=1mhz 135 pf c oss output capacitance (3) v gs =0v,v ds =25v, f=1mhz 21 pf c rss reverse transfer capacitance (3) v gs =0v,v ds =25v, f=1mhz 3.2 pf t d(on) turn-on delay (3) v dd =350v, i d =1a 10 ns t r rise time (3) v dd =350v, i d =1a 13.4 ns t d(off) turn-off delay (3) v dd =350v, i d =1a 14.9 ns t f fall time (3) v dd =350v, i d =1a 36.8 ns note: 3. these parameters, al though guaranteed, are not 100% tested in production.
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 6 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function functional description the fls0116 is a basic pwm controller for buck converter topology in continuous conduction mode (ccm) with an intelligent pfc f unction that uses a digital control algorithm. an internal self-biasing circuit uses the high-voltage switching devic e. the ic does not need an auxiliary powering path to the vcc pin typical in flyback control ics or psr product family. when the input voltage applied to the hv pin is within operating range (25v to 500v ), the fls0116 maintains a 15.5v dc voltage at the v cc pin for stable operation. the uvlo block functions such that when the v cc voltage rises higher than v ccst+ , the internal uvlo block releases and starts operation. otherwise, the v cc goes down to the v ccst- and ic operation stops. normally, the hysteresis function provides stable operation even if the input voltage is operating under very noisy or unstable circumstances. the fls0116 has a ?smart? internal digital block for determining input condition: ac or dc. when an ac source with 50hz or 60hz is applied to the ic, the ic automatically changes its in ternal reference signal, which is similar to input signal, for creating high power factor. when a dc source connects to the ic, the internal reference immediately changes to dc. soft-start function the fls0116 has an internal soft-start function to reduce inrush current at st artup. when the ic starts operation following an internal sequence, the internal reference slowly increases for a pre-determined fixed time. after this transient period, the internal reference goes to a steady-state level. in this time, the ic continually tries to find phase information from the vcc pin. if the ic succeeds in getting phase information, it automatically follows a similar shape reference made during the transient times, 7 periods. if not, the ic has a dc reference level. figure 4. soft-start function in ac input mode internal pfc function: how to achieve high power factor the fls0116 has a simple, ?smart?, internal pfc function that does not r equire additional pins for detecting input phase information or an electrolytic capacitor for supply voltage st abilization. for achieving high pf, the fls0116 does not use the rectification capacitor after the bridge diode. this is important because the ic instead uses fl uctuation in the signal on the vcc pin. basically, the vcc pin, which is supplies power for the ic, has voltage ripple as well as the rectification voltage after bridge, changing voltage level according to the v cc capacitor value. using this kind of voltage fluctuation on the vcc pin, the ic can detect the time reference and create the internal zcd signal. for precise and reliable internal reference for input voltage signal, the fls0116 uses a digital technique (sigma/delta modulation) and creates a new internal signal (dac_out) that has t he same phase as the input voltage, as shown in figure 5. this signal enters the final comparator and is compared with current information from the sensing resistor. dac_out bridge diode output voltage input voltage peak zcd vcc v bridge figure 5. internal pfc function self-biasing function the self-biasing function, using an hv device, can supply enough operating current to the ic and guarantee similar startup time across the whole input voltage range (80v~308v ac ). however, self-biasing has a weakness in high-voltage condition. normally, the hv device acts as const ant current source, so the internal hv device has power loss when high input voltage connects to the hv pin. this power loss is proportional to input voltage. to reduce this power loss, one of the possible solutions is an additional resistor between the input voltage source and the hv pin, as shown in figure 6. d1 fuse c1 c2 l2 r2 fls0116 cs vcc gnd rt drain hv adim l1 l3 c3 r1 c4 bd led r3 figure 6. high-voltage application
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 7 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function dimming function the fls0116 uses the adim pin for analog or 0v to 10v dimming. the peak voltage of internal reference, which is dac_out signal in figure 5, is changed by the v adim level, as shown in figur e 7, and has different peak level according to the operating mode. figure 7. v adim vs. v dac_out(peak) inductor design the fixed internal duty ratio range is below 50%, or around 400ns, from a timing point of view. the range is dependent on the input voltage and number of leds in its string. minimum duty is calculated as: (max) min in f v v n d ? ? = (1) where: = efficiency of system; v in(max) = maximum input voltage; v f = forward drop voltage of led; and n = led number in series connection. figure 8. dcm and ccm operation in dcm mode, inductance is: ] [ ) 1 ( min h i f d v n l rip s f m ? ? ? ? = (2) if the peak current is fixed at 350mapk, the formula for the peak current is: 350 2 ) ( = + = rip con peak o i i i [ma] (3) in ccm mode, determine t he necessary inductance using equations (2) and (3). assuming the high- frequency current ripple ( ? i rip ) as in the dcm, the average led current in ccm is defined as: 2 ) ( ) ( rip pk led average led i i i ? = [ma] (4) led rms current determined as: () ) 2 2 ( 2 1 2 1 ) ( ) ( ) ( ) ( ) ( rip pk led pk led rms con rms rip rms led i i i i i i ? + = + = (5) ) 2 2 2 ( ) ( rip pk led i i ? = [ma] (6) figure 9. typical performance characteristics v adi v da _ ou ac dc 0.5v 0. 36 v 3.5v 0. 5v
? 2012 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 8 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function example application circuits figure 10. application circuit without electrolytic capacitor figure 11. application circuit with electrolytic capacitor figure 12. application circuit of high-side operation with electrolytic capacitor
? 2011 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 9 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function typical characteristics -40 -20 0 20 40 60 80 100 120 14.0 14.5 15.0 15.5 16.0 16.5 17.0 vcc[v] temperature [c] -40 -20 0 20 40 60 80 100 120 4.0 4.5 5.0 5.5 6.0 vcc hv [v] temperature [c] figure 13. v cc vs. temperature figure 14. v cchys vs. temperature -40 -20 0 20 40 60 80 100 120 12.0 12.5 13.0 13.5 14.0 vcc st+ [v] temperature [c] -40 -20 0 20 40 60 80 100 120 90 100 110 120 130 140 150 i st [ a] temperature [c] figure 15. v ccst+ vs. temperature figure 16. i st vs. temperature -40 -20 0 20 40 60 80 100 120 7.0 7.5 8.0 8.5 9.0 vcc st- [v] temperature [c] -40 -20 0 20 40 60 80 100 120 43 44 45 46 47 48 f osc [khz] temperature [c] figure 17. v ccst- vs. temperature figure 18. f osc vs. temperature (rt=open)
? 2011 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 10 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function typical characteristics -40 -20 0 20 40 60 80 100 120 16 18 20 22 24 f osc [khz] temperature [c] -40 -20 0 20 40 60 80 100 120 1.3 1.4 1.5 1.6 1.7 v rt [v] temperature [c] figure 19. f osc vs. temperature (rt=87k ) figure 20. v rt vs. temperature -40 -20 0 20 40 60 80 100 120 200 220 240 260 280 300 f osc [khz] temperature [c] -40 -20 0 20 40 60 80 100 120 0.350 0.355 0.360 0.365 0.370 0.375 v cs1 [v] temperature [c] figure 21. f osc vs. temperature (rt=5.95k ) figure 22. v cs vs. temperature -40 -20 0 20 40 60 80 100 120 48 49 50 51 52 d max [%] temperature [c] -40 -20 0 20 40 60 80 100 120 17.5 18.0 18.5 19.0 19.5 ovp vcc [v] temperature [c] figure 23. d max vs. temperature figure 24. ovp vcc vs. temperature
? 2011 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 11 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function typical characteristics -40 -20 0 20 40 60 80 100 120 9 10 11 12 13 14 15 i ad [ a] temperature [c] -40 -20 0 20 40 60 80 100 120 560 580 600 620 640 bv dss [v] temperature [c] figure 25. i ad vs. temperature figure 26. bv dss vs. temperature -40 -20 0 20 40 60 80 100 120 0.0 0.1 0.2 0.3 0.4 0.5 i dss [ a] temperature [c] figure 27. i dss vs. temperature
? 2011 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 12 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function physical dimensions 8 0 see detail a notes: a) this package conforms to jedec ms-012 variation aa except for missing pin 6. b) all dimensions are in millimeters. c) dimensions do not include mold flash or burrs. d) drawing filename: m07brev2 land pattern recommendation seating plane 0.10 c c gage plane x 45 detail a scale: 2:1 pin one indicator 4 8 1 c m ba 0.25 b 5 a 5.60 0.65 1.75 1.27 6.20 5.80 3.81 4.00 3.80 5.00 4.80 (0.33) 1.27 0.51 0.33 0.25 0.10 1.75 max 0.25 0.19 0.36 0.50 0.25 r0.10 r0.10 0.90 0.406 (1.04) option a - bevel edge option b - no bevel edge 7 figure 28. 7-lead, small-outline integrated circ uit (soic), jedec ms-012, .150-inch narrow body package drawings are provided as a servic e to customers considering fairchild co mponents. drawings may change in any manner without notice. please note the revision and/or date on the drawi ng and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online pack aging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ .
? 2011 fairchild semiconductor corporation www.fairchildsemi.com fls0116 ? rev. 1.0.0 13 fls0116 ? mosfet integrated smart led lamp driver ic with pfc function

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