c o p y r igh t @ w i n s em i microelectronics c o . , lt d . , a l l ri g h t r e s er v ed . w/t- d 0 45 -rev.a/ 0 may .201 4 0514 w s3413 product description win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics features features features features ? high power factor correction, low total harmonic distortion ? dynamic temperature compensation ? 500 v power mosfet i ntegrated ? no auxiliary winding for supplying ? dip8 package, up to 260ma output current ? valley switching, high efficiency, low emi ? automatic compensate the inductance variation ? automatic adapt to the change of output voltage ? led short circuit protection ? over voltage protection ? over temperature protection ? open circuit protection ? few external components applications applications applications applications ? led driver supply general general general general description description description description the ws 3413 is designed for active pfc non-isolated buck led driver. it operates at valley switching mode with high efficiency, low emi and high pf. the output current automatically adapt to the variation of the inductance and the output voltage. the truly constant current led is realized. the ws 3413 integrates 500 v power mosfet, using dip8 package, producing up to 260ma output current. it can achieve excellent constant current performance with very few external components. the ws 3413 offers rich protection functions, including over voltage protection, led short circuit protection, cycle by cycle current limiting, dynamic temperature compensation, over temperature protection and soft start. ws 3413 consumes very low start current and operation current, driving led efficiently under universal ac input(85vac~265vac). ws 3413 is available in dip8 package. typical typical typical typical application application application application circuit circuit circuit circuit ws341 ws341 ws341 ws341 3 3 3 3 active active active active pfc pfc pfc pfc non-isolated non-isolated non-isolated non-isolated buck buck buck buck led led led led driver driver driver driver l e d + le d - a c 5 5 5 5 6 6 6 6 3 3 3 3 2 2 2 2 8 8 8 8 7 7 7 7 4 4 4 4 1 1 1 1 d d v c c g n d c o m p f b c s c s
www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 2 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description pin pin pin pin definition definition definition definition and and and and device device device device marking marking marking marking ws 3413 is available in dip-8 package. pin pin pin pin function function function function description description description description pin pin pin pin name name name name pin pin pin pin no. no. no. no. description description description description comp 1 loop compensation, with a cap to gnd. gnd 2 ground vcc 3 power supply fb 4 feedback signal input. d 5 internal hv power mosfet drain d 6 internal hv power mosfet drain cs 7 current sense input, connect to i nternal hv power mosfet source cs 8 current sense input, connect to i nternal hv power mosfet source block block block block diagram diagram diagram diagram ws 3413 d 8p : product code a: product code x internal code b area code ym year, month v c c f b g n d d c s c o m p 3 4 2 5 , 6 7 , 8 1 u v l o inter s u p p ly zero-current detect o v p temperature control p f c control l o g ic & driver 1 . 5 v low-clamp current s e n s e o t p o c p 1 v 2 0 0 m v 8 . 5 v e a c o m p g n d v c c f b d d c s c s 1 2 3 4 8 7 6 5 w s 3 4 1 3 d 8 p a x b y m
www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 3 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description ordering ordering ordering ordering information information information information package package package package part part part part number number number number marking marking marking marking 8-pin dip -8, pb-free ws 3413 d 8p ws 3413 d 8p recommended recommended recommended recommended operating operating operating operating condition condition condition condition symbol symbol symbol symbol parameter parameter parameter parameter value value value value units units units units i led o utput led current < 260 ma absolute absolute absolute absolute maximum maximum maximum maximum ratings ratings ratings ratings symbol symbol symbol symbol parameter parameter parameter parameter range range range range units units units units v ds internal hv mosfet drain voltage -0.3~ 5 00 v vcc power supply -0.3~ 8.5 v v cs current sense pin input voltage -0.3~7 v v fb feedback voltage input -0.3~7 v v comp loop compensation pin voltage -0.3~7 v p dmax power dissipation 0. 5 w t j max. operating junction temperature 150 t stg max./min. storage temperature range -55~150 note: stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. under recommended operating conditions the device operation is assured, but some particular parameter may not be achieved.
www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 4 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description electrical electrical electrical electrical characteristics characteristics characteristics characteristics ( unless otherwise specified t a =25 vcc= 8 v) symbol symbol symbol symbol parameter parameter parameter parameter conditions conditions conditions conditions min min min min typ typ typ typ max max max max units units units units supply voltage section vcc_clamp vcc clamping voltage 7.8 8.5 9.3 v icc_clamp vcc clamping current 5 ma vcc_st vcc start up voltage vcc rise 7.5 v vuvlo_hys vcc under voltage latch out hysteresis vcc falling 1.5 v ist start up current vcc www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 5 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description function function function function description description description description the ws 3413 is designed for active pfc non-isolated buck led driver, which integrates 500 v power mosfet and using dip8 package, producing up to 260ma output current. it operates under valley switching mode, automatically adapting to the variation of the inductance and the output voltage. it can achieve excellent constant current performance with very few external components . start start start start up up up up the start current is very low, typ. 70ua(max. 100ua). under the design system of 85vac, the startup resistor is: m r 2 . 1 100 2 * 85 = = c c c c hip hip hip hip supply supply supply supply after startup, the output voltage should supply the chip, rectifier diodes d6 need to use fast recovery diodes.current limiting resistor r4 is calculated as: ( ) ua v d r led 400 9 * 1 4 ? ? = w here, d is duty cycle, 400ua is the normal operation current of the chip, vled is output load voltage. the consumption of r4 is: ( ) ) 1 ( * 9 4 2 4 d r v p led r ? ? = for example: r equirements:180~260v input voltage, 36~80v output, 240ma output current. the r4 design of above program should be met: 1. supply problem when min. input ac voltage 180v and min. output voltage 36v(which is the weakest power supply): d=36/180/1.414=0.141,r4=(1-0.141)*(36-9)/400ua=58k 2.power consumption problem of r4 when max. input ac voltage 260v and max. output voltage 80v(which is the strongest power supply): d=80/260/1.414=0.218 t he power consumption of r4: p=(80-9)*(80-9)/58*(1-0.218)=68mw sence sence sence sence resistor resistor resistor resistor the ws 3413 is designed for active pfc non-isolated buck led driver. it operates under valley switching mode and can achieve high accuracy constant current performance with very few external components. the peak current of inductor is continuous detected. cs terminal is connected internal of the chip, and compared with the internal 200mv. internal amplifier s output comp adjust the on-time, making the average value os cs equal to 200mv after the system is stable. in addition, a 1v cycle-by-cycle over current protection is set up inside cs pin. led output current: cs led r v i 2 . 0 = fb fb fb fb voltage voltage voltage voltage detection detection detection detection fb voltage determines the working status of the system, when fb is greater then 1.6v(typ.), ws 3413 will automatically considered as output over voltage protection. the system will enter extremely energy efficient hiccup mode. output over voltage protection voltage as follows: 3 3 2 * 6 . 1 r r r v ovp + = r2,r3,please refer to the typical application diagram, in which r3=1k(no more than 2k). use 1.3 instead of constant 1.6 in the above formula in the design of system. assuming vovp=90v, we got r2=56k from the above formula, choosing 60k for r2 (larger as far as possible). because vfb2 is between 1.3 and 1.9, choose 1.9 to calculate the withstand voltage of c4, vovp=1.9*(1+60)/1=116v the withstand voltage of c4 shoule larger than the above value, 200v capacitor could be used. the ws 3413 uses the patent source driver structure. the typical operation current is as low as 200ua, the auxiliary winding is not need. so the system design is simple and the cost is low. ws 3413 will automatic detect the output voltage when enters hiccup mode; and will re-enter the normal working state when the output voltage is lower than vovp.
www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 6 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description output output output output open(short) open(short) open(short) open(short) protection protection protection protection output open/short protection is integrated inside ws 3413 . once output open/short circuit is detected, the system will automatic enter hiccup mode until the protection signal disappear. over over over over temperature temperature temperature temperature automatic automatic automatic automatic adjustment adjustment adjustment adjustment of of of of output output output output current current current current ws 3413 has over temperature regulating function, gradually reducing the output current when the power is over temperature, so as to control the output power and the temperature rise, keeping the power temperature in a setting value in order to improving the reliability of the system. the starting regulation temperature is 135 . input input input input filter filter filter filter capacitor capacitor capacitor capacitor in order to obtain high pf value, the input capacitor can not be too large. 10-100nf is recommended. power power power power factor factor factor factor correction correction correction correction active pfc control circuit is integrated in ws 3413 , which can get high pf value and low thd. pcb pcb pcb pcb design design design design the following guidelines should be followed in ws 3413 pcb layout: bypass capacitor : the bypass capacitor on vcc pin should be as close as possible to the vcc and gnd pins. ground path : the power ground path for current sense should be short, and the power ground path should be separated from small signal ground path before the negative node of the bu lk capacitor. the area of power loop : the area of power loop should be as small as possible to reduce emi radiation. and the controller should be placed away from the heat generator, such as the power diode.
www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 7 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description package package package package information information information information di di di di p-8 p-8 p-8 p-8 package package package package outline outline outline outline dimensions dimensions dimensions dimensions winsemi winsemi winsemi winsemi symbol symbol symbol symbol dimensions dimensions dimensions dimensions in in in in millimeters millimeters millimeters millimeters dimensions dimensions dimensions dimensions in in in in inches inches inches inches min min min min max max max max min min min min max max max max a 9.00 9.50 0.354 0.374 b 6.10 6.60 0.240 0.260 c 3.0 3.4 0.118 0.134 a1 1.474 1.574 0.058 0.062 a2 0.41 0.53 0.016 0.021 a3 2.44 2.64 0.096 0.104 a4 0.51typ 0.02typ a5 0.99typ 0.04typ c1 6.6 7.30 0.260 0.287 c2 0.50typ 0.02typ c3 3.00 3.40 0.118 0.134 c4 1.47 1.65 0.058 0.065 d 7.62 9.3 0.300 0.366 d1 0.24 0.32 0.009 0.013 d2 7.62typ 0.3typ c c 1 c 2 c 3 c 4 a 1 a 5 a 2 a 3 a 4 1 2 3 d 1 d d 2 a b
www.winsemi.com tel : +86- 755-8250 6288 fax : +86- 755-8250 6299 8 / 8 win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics win sem i m icroelectron ics w s3413 product description note: note: note: note: 1. we strongly recommend customers check carefully on the trademark when buying our product, if there is any question, please don't be hesitate to contact us. 2. please do not exceed the absolute maximum ratings of the device when circuit designing. 3. winsemi microelectronics co., ltd reserved the right to make changes in this specification sheet and is subject to change without prior notice. contact: contact: contact: contact: winsemi microelectronics co., ltd. add:futian district, shenzhen tian an cyber tech plaza two east wing 1002 post code : 518040 tel : +86-755-8250 6288 fax : +86-755-8250 6299 web site : www.winsemi.com
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