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WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics 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 1030 features ? internal 550v power mosfet ? active pfc for high power factor and low thd ? critical conduction mode operation ? system efficiency up to 95% ? without auxiliary winding ? excellent lin e and load regulation ? 3% led output current accuracy ? thermal regulation function ? led short/open protection ? current sensing resistor open protection ? auto fault recovery ? available in dip7/ so p8 package applications ? e27 led bulb, spot light ? par30, par38 lamp ? t8/t10 led string ? other led lighting description the WS3413 is a high precision non-isolated buck driver with active pfc, specially designed for universal input offline constant current led lighting. the driver with on-chip pfc circuit achieves high power factor and low thd. operating in critical conduction mode, the power mosfet switching loss is reduced and the inductor is fully utilized . the WS3413 integrates a 550v power mosfet. with few external components, the led output current can be precisely controlled. the WS3413 offers rich protection functions to improve the system reliability, including led open circuit protection, led short circuit protection, cs resistor open circuit protection and cycle by cycle current limit. all the protection functions are auto-recovery. the system reliability is further improved by the thermal regulation function . the output current is reduced when the driver is over temperature. the WS3413 has u ltra low star t up current and u ltra l ow o perating c urrent . the WS3413 is a vailable in dip7/sop8 package . typical applicatio n non-isolated buck apfc offline led driver
www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 2 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics pin configuration and marking information the WS3413 is a vailable in sop8/dip7 package the top marking is shown as below: pin definition name pin no. description comp 1 loop compensation node. this pin connects a capacitor to gnd for stabilization of the control loop, achieving accurate led current, high power factor and low thd. gnd 2 ground . vcc 3 power supply p in. connect a bypass capacitor from this pin to gnd. fb 4 feedback voltage input p in. this pin detects the inductor demagnetization signal and the output voltage. d 5 / 6 internal hv p ower mosfet d rain . cs 7 current sense p in. c onnect a resistor to gnd to sense the inductor current. cs 8/na current sense p in. c onnect a resistor to gnd to sense the inductor current. internal block diagram ws 3413s8p product code a ? x ? bcy ????? y mx d/c ws 3413d7p product code a ? x ? bcy ????? y mx d/c www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 3 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics ordering information package marking part number 8-pin sop-8 , pb-free ws 3413s 8p ws 3413s 8p 7 -pin dip-7 , pb-free ws 3413d7 p ws 3413d7 p recommended operation conditions part number package input voltage maximum output power ws 3413s 8p sop8 175vac-264vac 80v/240ma 90vac-264vac 60v/240ma ws 3413s 8p dip7 175vac-264vac 120v/240ma 90vac-264vac 80v/240ma absolute maximum ratings symbol paramete range unit v cc vcc pin voltage -0.3~8 v v d internal hv mosfet drain to source voltage -0.3~ 550 v v cs current sense pin input voltage -0.3~7 v v fb feedback pin input voltage -0.3~7 v v comp compensation pin voltage -0.3~7 v p dmax power dissipation 0. 9 w t j operating junction temperature 1 6 0 t stg storage temperature range -55~1 5 0 note : stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 4 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics electrical characteristics (unless otherwise specified, vcc=8v and ta =25 ) symbol parameter conditions min typ max units supply voltage section v cc_clamp vcc clamp voltage 7. 5 8. 0 8.5 v i cc_clamp vcc clamp current 5 ma v cc_st vcc turn on threshold vcc rising 7.07 7.57 8.07 v v uvlo_hys vcc turn off hysteresis vcc falling 1. 32 v i st vcc startup current vcc www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 6 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics 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 resistor should be short and wide, and it should be as close as possible to the ic ground (pin 2 ) , otherwise the led output current accuracy maybe affected . the ic signal ground for comp and fb components should be connected to the ic gnd pin with short traces and should be away from the power ground path. the area of power loop the area of main current loop should be as small as possible to reduce emi radiation. fb pin the feedback resistor divider should be as close as possible to the fb pin , and the trace must keep s away from dynamic node of the inductor (drain pin trace the positive pin and th e negative pin of vo trace) , otherwise the fb pin ovp function might have risk to be mis-triggered by the system noise. d rain pin to i ncrease the copper area of drain pin for better thermal dissipation. however, too large copper area may compromise emi performance. t he material of pcb avoid choosing the material that is easy to absor b the moisture , just like paper copper-clad laminates . www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 7 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics package information dip7 package outline dimensions winsemi symbol dimensions in millimeters dimensions in inches min max min 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 www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 8 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics sop8 package outline dimensions winsemi symbol dimensions in millimeters dimensions in inches min max min max a 4.70 5.10 0.185 0.201 b 3.70 4.10 0.146 0.161 c 1.30 1.50 0.051 0.059 a1 0.35 0.48 0.014 0.019 a2 1.27typ 0.05typ a3 0.345typ 0.014typ b1 5.80 6.20 0.228 0.244 b2 5.00typ 0.197typ c1 0.55 0.70 0.022 0.028 c2 0.55 0.70 0.022 0.028 c3 0.05 0.225 0.002 0.009 c4 0.203typ 0.008typ d 1.05typ 0.041typ d1 0.40 0.80 0.016 0.031 a b a1 a2 a3 0.5 * 0.125 0 05 . b 1 d c4 c 3 c 1 c c 2 r2 r1 1 b 2 3 2 4 d 1 www.winsemi.com tel : +86-755-8250 6288 fax : +86-755-8250 6299 9 / 9 WS3413 productdescription winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics winsemi microelectronics n ote: 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: 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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