User Guide for FEBFL7701_L30U003A 2.4W LED Ballast Using
Contents
1. FAIRCHILD esl ww fairchilds mi eam SEMICONDUCTORS User Guide for FEBFL7701 L30U003A 2 4W LED Ballast Using FL7701 Featured Fairchild Product FL7701 Direct questions or comments about this evaluation board to Worldwide Direct Support Fairchild Semiconductor com 2012 Fairchild Semiconductor Corporation 1 FEBFL7701 L30U003A Rev 1 0 2 EMM FAIRCHILD SEMICONDUCTOR ww faircfildsemi eom Table of Contents Me Modi OR Nenotane peesdsoequauseeanctone 3 bL ACM TAN WY SAS 1610 815 PR Re T T Tem 3 1 25 RE CAE ed ee tit UD UR 3 1 3 Internal Block Diagram LE ennnensssee s eee ee sanat rennen anas saa na 4 2 General Specifications for Evaluation Board ss 5 3 Photographs of the Evaluation Board ss 6 4 Printed Circuit Board SMM aoaeaaiaee rinine ananin eiaeaen 7 5 Schematic craaansesssseeesceeeeececceseeses ooo B N B B B B B B B C d SA TIE 8 6 Bill Of MATE EL PIA 9 7 Test Common ltesiiEquipment see 9 8 Tecin MOn S RR eene DD 10 o JE ICT LOTS Startup S aeaaeae ees 10 8 2 Operating frequency amp minimum duty sers 11 Dh Dial Aavelorms Steady SAR se NS 12 8 4 Typical waveforms Abnormal Mode LED Open esses 15 8 5 Typical waveforms Abnormal Mode Inductor Short Condition 16 uam of Evaluation Board 17 PE EoenFactor at Rated Load Genel ESP 17 E sem Eff2. CH1 Vcc CH2 Vprain CH3 Vi gp CHA ligp CH1 Vcc CH2 Vprain CH3 Vi gp CH4 ligp Figure 8 Soft Start Characteristics AC Mode 90Vac Figure 9 Soft Start Characteristics AC Mode 265Vac i a Maturo PTrTmatz Fzrmgqcan Perma Pam Ft Pees Press PE Pure Pinna PFzrmcn Perma Pam Fate FE 2827 V 59 4 mv value Tr22V Fi ee V 595 nv BIG oa Aks BOHT4SIma Xzz 61706 ma ile V AETA M Xzz 83T05A ma Wke IAr ME OOo o il Trading numbers in me Blename were Funtika fo Akra aut eumeenng aang for Tagger CH1 Vcc CH2 VpRAIN CH3 ViED CH4 ligp CH1 Vcc CH2 VpRAIN CH3 Vle CH4 lLED Figure 10 Soft Start Characteristics DC Mode 100Vpc Figure 11 Soft Start Characteristics DC Mode 200Vpc 2012 Fairchild Semiconductor Corporation 10 FEBFL7701_L30U003A Rev 1 0 2 u MJ FAIRCHILD fece Rm SEMICONDUCTORS 8 2 Operating Frequency amp Minimum Duty ww fairchildsemi eom The programmable switching frequency is between 20kHz 250kHz determined by selecting the RT resistor value If no RT resistor is used RT pin OPEN the FL7701 default switching frequency is set to 45kHz The maximum duty ratio is fixed below 50 and has a fixed minimum typical on time of 400ns There are two crucial points to design properly The first is consideration of the minimum duty ratio at minimum input voltage because the FL7701 is limited to 50 duty ratio The second consideration is minimum on time at maximum input voltag
3. 20 0 e 0 96 Figure 33 Thermal Test Result Top Side Temperature at 110Vac Condition Inductor 20 FEBFL7701 L30UO003A Rev 1 0 2 SSS FAIRCHILD ni SEMICONDUCTORS Spot 54 6 3 Box Top side Max 55 0 Circle Bottom side w 54 4 SFLIR Dist 0 5 Trefl 20 0 0 96 SFLIR Dist 0 5 Trefl 20 0 0 96 Figure 34 Thermal Test Result Bottom Side Figure 35 Thermal Test Result Top Side Temperature Temperature at 220Vac Condition IC at 220Vac Condition Inductor Spot 60 7 Box Top side Max 59 5 Circle Bottom side SFLIR Dist 0 5 Trefl 20 0 0 96 SFLIR Dist 0 5 Trefl 20 0 0 96 Figure 36 Thermal Test Result Bottom Side Figure 37 Thermal Test Result Top Side Temperature Temperature at 264V ac Condition IC at 264V ac Condition Inductor Table 6 Temperature performance by Input voltage Input Voltage 110Vac 51 4 C 46 9 C 47 8 C 220Vac 66 5 C 55 0 C 54 6 C 265Vac 71 5 C 5959 G 57 7 C 2012 Fairchild Semiconductor Corporation 21 FEBFL7701 L30U003A Rev 1 0 2 SS FAIRCHILD nr SEMICONDUCTOR ww fairchildsemi eom 9 5 EMI Results EMI test measurements were conducted in observance of CISPR22 criteria which has tighter stricter limits than CISPR15 for lighting applications m a i TA j I i ii T A fy P aL Any nypon 800 4
4. Evaluation Board Figure 2 Photograph Top View 20mm x 32mm x 13mm Figure 3 Photograph Bottom View 20mm x 32mm x 13mm Figure 4 Photograph Side View 20mm x 32mm x 13mm 2012 Fairchild Semiconductor Corporation 6 FEBFL7701_L30U003A Rev 1 0 2 pum J FAIRCHILD Saas SEMICONDUCTOR ww fairchildsemi com 4 Printed Circuit Board FAIRCHILD sesiconductor FL7701 Board 20mmxSOmm 20110805 Figure 5 PCB Top Side Figure 6 PCB Bottom Side 2012 Fairchild Semiconductor Corporation 7 FEBFL7701 L30U003A Rev 1 0 2 SSS FAIRCHILD e SEMICONDUCTOR ww faircfildsemi eom 5 Schematic L1 15mH cveseesesese s R1 680R D1 Fuse D2 1A 250V C2 1N4148 33nF 630 C1 22nF 630V Pe Q1 4 FQN1N50C R4 510R L2 15mH Figure 7 Schematic of Evaluation 2012 Fairchild Semiconductor Corporation 8 FEBFL7701_L30U003A Rev 1 0 2 SSS 4 FAIRCHILD SEMICONDUCTORS ww fairchildsemi com 6 Bill of Materials Qty Reference Part Number Value Description Manufacturer PCB Silkscreen afo mes OV Diode Bridge 600V 0 5A de IE oe CNRS IR g itor D D Capacitor SMD Ceramic 1A Diode 1kV 1A Ultra Fast Fairchild e lt 1N4148 1A 100V 1A Small Signal Fairchild Diode Semiconductor L1 L2 R06153KT00 Inductor Radial R6 5x7 5 3 4 1 2 2 RC1206JR 07680RL 680H Resistor SMD 1 4W 1206 RC1206JR 0710KL 10k
5. Load Condition Test File Vertical Timebase Tngger Display Cursors Measure Math Analysis Utilities Help E k 2 h i Measure PArTms C2 P2 rms C3 P3 xrms C4 P4 freq c 1 P5 duty C 1 PB PT P8 value 150 1 Y B4 4 mV ann status i e 3 CH1 Vcc CH2 VpRAIN CH3 Vle CH4 ILED Figure 24 Test Results of Open Load Condition 2012 Fairchild Semiconductor Corporation 15 FEBFL7701_L30U003A Rev 1 0 2 SSS FAIRCHILD e SEMICONDUCTOR ww fairchildsemi com 8 5 Typical Waveforms Abnormal Mode Inductor Short Condition Figure 25 and Figure 26 show the test method and result of an inductor short condition The FL7701 uses an abnormal over current protection AOCP function limiting the current on RCS in the event of an inductor short condition L1 15mH Short R4 510R Q1 FQN1N50C vcc GND cusscscessesescsesesee L2 15mH Figure 25 Inductor Short Condition File Vertical Timebase Trigger Display Cursors Measure Math Analysis Utilities Help TEREEREINTE AAAAAAAAA EEEE F i A When CS pin voltage reached 2 5V AOCP operates after internal delay time 70ns typical Pm T it i L a 4 OON OA OOR hs I See Measure P1Tms C2 Parms C3 P3rms C4 PdtregiC1 P5 duty C1 PE PT Pg value 283 4 V 26 069 V 137 48194 Hz 1m status d d 1t R E
6. OR DESIGN FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS NOR THE RIGHTS OF OTHERS LIFE SUPPORT POLICY FAIRCHILD S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which a 2 Acritical component is any component of a life support device or are intended for surgical implant into the body or b support or system whose failure to perform can be reasonably expected to sustain life or c whose failure to perform when properly used in cause the failure of the life support device or system or to affect its accordance with instructions for use provided in the labeling can be safety or effectiveness reasonably expected to result in significant injury to the user ANTI COUNTERFEITING POLICY Fairchild Semiconductor Corporation s Anti Counterfeiting Policy Fairchild s Anti Counterfeiting Policy is also stated on our external website www fairchildsemi com under Sales Support Counterfeiting of semiconductor parts is a growing problem in the industry All manufacturers of semiconductor products are experiencing counterfeiting of their parts Customers who inadvertently purchase counterfeit parts expe
7. my iy ow I Sy ajay ay 4 20 my 2012 02 15 2 957 43 Je CH1 Vcc CH2 Voran CH3 Vren CH4 ligp CH1 Vcc CH2 Voran CH3 Vigp CH4 ILep Figure 13 Input Voltage 90Vac Input Frequency 47HzFigure 14 Input Voltage 90Vac Input Frequency 64Hz its nes ees ee Ser oon een tae eee LL JURA M ATT a HNN n I TTT Ta Measure Piems C2 Porac Pi resic fregc 1 PS meet PS P Pe Measure P1 msicC2 Prac Pirmat P4 fregC 1j PS may 1 PS Sov 27 98 V rat aper nis 8155 vue 855v 28021V Di s m 12820513 Mz a a E UL CU LL y 23 72 my Ay d G 1244 y 3 38 my 4 Trading number s in Me Sename were truncated to stow auto numbenng Trang number s in Me fiename were truncated to adow auto numbenng H1 Vcc CH2 Vprain CH3 Vigp CH4 li gp H1 Vcc CH2 Voran CH3 Vigp CH4 ligp Figure 15 Input Voltage 110Vac Input Frequency Figure 16 Input Voltage 110Vac Input Frequency 47Hz 64Hz 2012 Fairchild Semiconductor Corporation 12 FEBFL7701_L30U003A Rev 1 0 2 ww fairchildsemi eom EEE FAIRCHILD E SEMICONDUCTOR Typical Waveforms Output Characteristics NANA PNN VAN AMMAAAAAA RAM MAA ANAM TT IT MERERI TE 1 NE Il HU HI TI DT il iii bi I xi AULA ja LL LT UT TETE CH1 Vcc CH2 VpRAIN CH3 ViED CH4 ligp CH1 Vcc CH2 VpRAIN CH3 ViED CH4 li gp Figure 17 Input Voltage 180V ac Input Frequency Figure 18 Input Voltage 180Vac Input Frequenc
8. ww fairchildsemi eom 9 3 THD Performance Figure 29 shows the THD performance at different input frequencies Test results are quite similar except the 90Vic condition but meets international regulations under 30 79 THD 47Hz THD 64Hz Figure 29 THD Performance Table 5 THD Test Results 90Vac 110Vac 180Vac 2012 Fairchild Semiconductor Corporation 19 FEBFL7701_L30U003A Rev 1 0 2 SSS FAIRCHILD RS SEMICONDUCTORS 9 4 Thermal Performance Figure 30 through Figure 37 show the steady state thermal results with different input voltage conditions Inductor L3 has the highest temperature on the top side of the PCB due to copper resistance The FL7701 has the highest temperature on the bottom side of the PCB due to power loss associated with the high voltage device The IC temperature is 66 5 C for the 220V ac input condition Bottom side SFLIR Dist 0 5 Trefl 20 0 g 0 96 Figure 30 Thermal Test Result Bottom Side Temperature at 90V4c Condition IC Bottom side SFLIR Dist 0 5 Trefl 20 0 e 0 96 Figure 32 Thermal Test Result Bottom Side Temperature at 110Vac Condition IC 2012 Fairchild Semiconductor Corporation Bottom side SFLIR Dist 0 5 Trefl 20 0 g 0 96 Figure 31 Thermal Test Result Top Side Temperature at 90Vac Condition Inductor Spot 459 ds Top side Max 46 9 Circle Max 47 8 FLIR Dist 0 5 Trefl
9. 00500 800 1M 2M 8M 4M 5M B amp 10M 20M Frequency in Hz mn PAR G O M3 EMCI Test C C Gvehyun 3j 39 INSIC final 225 AT Lido 9n Figure 38 EMI Test Results Conducted Emission Line at 110V4c Input Condition Full Load 10 LED Series rn UM HERA da vag mies f xi EN 55027 voltarmi Cre prre err eren Level in dBW 20 ayy li JA j lab Porn un aH Hon 300 400 600 800 1M 2M SM 4M 5M amp 10M 20M Frequency in Hz DAR CD EMC3 Test 3 Gye AG ddp em ur Figure 39 EMI Test Results Conducted Emission Neutral at 110V4c Input Condition Full Load 10 LED Series 2012 Fairchild Semiconductor Corporation 22 FEBFL7701 L30U003A Rev 1 0 2 ww fairchildsemi eom a FAIRCHILD en aoe nocte SEMICONDUCTOR EN 660 Volant on Mams OF Level in dBW Tull 300 400 500 800 1M 2M SM 4M 5M B 10M 20M Frequency in Hz oogozsc a gt EMCI Test 3 Figure 40 EMI Test Results Conducted Emission Neutral at 220Vac Input Condition Full Load 10 LED Series EH 56002 Valtaae on Mains OF e Le Level in dELY A Le 300 400 500 600 1M 2M 8M 4M 6M 6 amp 10M Figure 41 EMI Test Results Conducted Emission Neutral at 220Vac Input Condition Full Load 10 LED Series 2012 Fairchild Semiconductor Corporation 23 FEBFL7701 L30U003A Rev 1 0 2 S54 FAIRCHILD ww fairchildsemi com SEMICONDUCTOR be a 10 Revision o RE 20
10. 11 11 16 Firstissue 000 2011 11 30 Update IC temperature 1 0 2 2012 2 20 Modified edited formatted document Changed User Guide number from UU in FEB L030 to FEBFL7701_L30U003A WARNING AND DISCLAIMER Replace components on the Evaluation Board only with those parts shown on the parts list or Bill of Materials in the Users Guide Contact an authorized Fairchild representative with any questions This board is intended to be used by certified professionals in a lab environment following proper safety procedures Use at your own risk The Evaluation board or kit is for demonstration purposes only and neither the Board nor this User s Guide constitute a sales contract or create any kind of warranty whether express or implied as to the applications or products involved Fairchild warrantees that its products meet Fairchild s published specifications but does not guarantee that its products work in any specific application Fairchild reserves the right to make changes without notice to any products described herein to improve reliability function or design Either the applicable sales contract signed by Fairchild and Buyer or if no contract exists Fairchild s standard Terms and Conditions on the back of Fairchild invoices govern the terms of sale of the products described herein DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY FUNCTION
11. Hesistor SMD 1 4W 1206 RC1206JR 073RL 3 0 1 1 1 1 1 1 1 1 1 R Resistor SMD 1 4W 1206 7 Test Condition amp Test Equipment Evaluation Board FEBFL7701_L30U003A Test Date 2012 01 19 Test Temperature 25e AC Source PCR500L by Kikusui Power Meter PZ4000 by Yokogawa Oscilloscope Waverunner 64Xi by Lecroy Test Equipments EMI Test Receiver ESCS30 by ROHDE amp SCHWARZ Two Line V Network ENV216 by ROHDE amp SCHWARZ Thermometer CAM SC640 by FLIR SYSTEMS LED EHP AXOSEL GTO1H PO03 3W by Everlight 2012 Fairchild Semiconductor Corporation 9 FEBFL7701 L30U003A Rev 1 0 2 SSS FAIRCHILD ES ww faircliildsBimi amp gm SEMICONDUCTOR 8 Test Waveforms 8 1 Typical Waveforms Startup Figure 8 through Figure 11 show the typical startup performance at different input voltage conditions When AC input voltage is applied to the system the FL7701 automatically operates in AC Mode after finishing an internally fixed seven cycle soft start period Figure 10 and Figure 11 show the soft start characteristics when a DC input voltage is applied a a eno LITE PTrImatz Fermin Perma Pam Ft FE ELI PE Pure PTrmatz Permian F3 rme ca Pa mani Pout Pees F rE value i92 v aT ay 56 3 mv value SV a7 ay 59 9 mv simu af Ets dus Aka Soins Riz 097 ue ke 13e iamen Tes Ets 21 0pa Xe Bia Riz 2097 pe Mk 1 3 Mee id Trading miens in fie Blename were anale fo aloe aut eumBenng Fan for Trigger
12. TIT Stop 347V 10 0 EHE EE T Positive Al 10 5 2219Vi4 1748VI 274mVit 2316Vi 2322 VI 2012 02 15 24 10 22 43 CH1 Vcs CH2 Voran CH3 Vigp CH4 ligp Figure 26 Test Results of Inductor Short Condition 2012 Fairchild Semiconductor Corporation 16 FEBFL7701_L30U003A Rev 1 0 2 SSS FAIRCHILD ssl ww faircliildsBimi amp gm SEMICONDUCTORS 9 Performance of Evaluation Board 9 1 Power Factor at Rated Load Condition Figure 27 shows the system PF performance for the entire input voltage range 90V to 265V at different input frequency conditions 47Hz 64Hz The PF slightly changes according to the input frequency but can achieve over 86 at 265 Vac condition PF_47Hz H PF 64Hz 264 Figure 27 Power Factor Table3 PF Test Results 90Vac 110Vac 180Vac 220Vac 265Vac 2012 Fairchild Semiconductor Corporation 17 FEBFL7701_L30U003A Rev 1 0 2 SSS FAIRCHILD fece Rm SEMICONDUCTORS ww fairchildsemi eom 9 2 System Efficiency Figure 28 shows system efficiency results for different AC input voltage frequency conditions As shown the input frequency has negligible effect on system efficiency a TEE meet eiie Efficiency 64Hz 264 Figure 28 System Efficiency Table 4 Efficiency Test Results 90Vac 110Vac 265Vac 2012 Fairchild Semiconductor Corporation 18 FEBFL7701_L30U003A Rev 1 0 2 SSS FAIRCHILD fece Rm SEMICONDUCTORS
13. ail stability which can significantly affect LED reliability 1 2 Key Features Digitally Implemented Active PFC Function Built in Self Biasing HV Startup Circuit Application Input Range 80V Ac 308Vac AOCP Function with Auto Restart Mode Built in Over Temperature Protection Cycle by Cycle Current Limit Current Sense Pin Open Protection Low Operating Current 0 85mA Typical Under Voltage Lockout with 5V Hysteresis Programmable Oscillator Frequency Programmable LED Current Analog Dimming Function Fixed Soft Start Function Precise Internal Reference 3 2012 Fairchild Semiconductor Corporation 3 FEBFL7701_L30U003A Rev 1 0 2 S54 FAIRCHILD eee ee ww fairchildsemi com SEMICONDUCTOR be 1 3 Internal Block Diagram Reference GND 6 a Figure 1 Internal Block Diagram Pin Descriptions Symbol Description CS Current Sense Limits output current depending on the sensing resistor voltage The CS pin is also used to set the LED current regulation Output Connects to the MOSFET gate Supply Voltage Supply pin for stable IC operation ZCD signal detection used VCC for accurate PFC function Resistor Programmable operating frequency using an external resistor connected to this PIN and the IC has fixed frequency when this pin is left open or floating Analog Dimming Connects to the internal current source and can change the output current using an external resis
14. e condition The FL7701 cannot control output power when the operating conditions are such that the required on time is less than the 400ns minimum on time File Vertical Timebase Trigger Display Cursors y Measure PA1Tms C2 PF2 rms C3 F3 xrms C4 value 3426 V 30 43 V 1236 mV 6991303 kHz status y 100 Vidiv 0 0 V offset T Ay 172 0 Vi Ay 3 667 Vi Ay Measure Help Switching frequency 69 91kHz PB PT PB Timebase 19 9 usi Trigg 5 00 us div Stop 250 k5 5 0 GS s Edge X1 14 2852 ys AX 1 1242 ps X2 154094 pus 1AX 889 5 kHz 2012 02 15 2 A 8 51 41 CH1 Vcc CH2 V DRAIN CH3 ViED CH4 ILED Figure 12 Operating Frequency amp Minimum Duty 2012 Fairchild Semiconductor Corporation 11 FEBFL7701_L30U003A Rev 1 0 2 R FAIRCHILD ES ww fairchilldsemi om SEMICONDUCTORS 8 3 Typical Waveforms Steady State Figure 13 through Figure 22 show the normal operation waveform by input voltage amp input frequency The output voltage and current maintains a certain output level with 120Hz ripple as shown in the test results in Table 2 nin mmm m yim mmm DIUI T YR M M M mm me hl Meas insure Fm Firmati Firmei F4 forage 1 Faute vaut TV 27 908 V rt j Ob Mu LT 27901 y Mey CHI HE tj tt LA M a aram wf L a ID AL 100 vi 0 mynd EL Li 0 0 V offpet 149 59 my HOY 602 V i 145 72 my mos Vir LOI i 1415
15. iciency o ooo oo o ss ERN 18 Sds MPEerformance MERE eene IEEE 19 cum Performance ERE DD eee 20 2 3 EMIL SOS E Rm cc EE sso A 22 I SSI ECS RE o MU 24 2012 Fairchild Semiconductor Corporation 2 FEBFL7701 L30U003A Rev 1 0 2 EMM FAIRCHILD ae SEMICONDUCTORS ww fairchildsemi com This user guide supports the Evaluation kit for the FL7701 It should be used in conjunction with the FL7701 datasheet as well as Fairchild s application notes and technical support team Please visit Fairchild s website at www fairchildsemi com 1 Introduction This document describes the proposed solution for a universal input 2 4W LED ballast using the FL7701 The input voltage range is 90Vgys 265Vgys and there is one DC output with a constant current of 85mA at 28Vyax This document contains general description of FL7701 the power supply specification schematic bill of materials and the typical operating characteristics 1 1 General Description The FL7701 LED lamp driver is a simple IC with PFC function The special adopted digital technique automatically detects input voltage condition and sends an internal reference signal resulting in high power factor When an AC input voltage is applied to the IC the PFC function is automatically enabled Otherwise when a DC input is applied to the IC the PFC function is automatically disabled The FL7701 does not require a bulk capacitor electrolytic capacitor for supply r
16. n products and products made with U S origin technology are subject to U S Re export laws In the event of re export the user will be responsible to ensure the appropriate U S export regulations are followed 2012 Fairchild Semiconductor Corporation 24 FEBFL7701_L30U003A Rev 1 0 2 Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery amp Lifecycle Information Fairchild Semiconductor FEBFL7701 L30U003A
17. rience many problems such as loss of brand reputation substandard performance failed applications and increased cost of production and manufacturing delays Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts have full traceability meet Fairchild s quality standards for handling and storage and provide access to Fairchild s full range of up to date technical and product information Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources Fairchild is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors EXPORT COMPLIANCE STATEMENT These commodities technology or software were exported from the United States in accordance with the Export Administration Regulations for the ultimate destination listed on the commercial invoice Diversion contrary to U S law is prohibited U S origi
18. tor If ADIM is not used connect a 0 1uF bypass capacitor between ADIM and GND GROUND Ground for the IC High Voltage Connect to the high voltage line and supply current to the IC 2012 Fairchild Semiconductor Corporation 4 FEBFL7701 L30U003A Rev 1 0 2 EMM FAIRCHILD ae SEMICONDUCTORS ww fairchildsemi com 2 General Specifications for Evaluation Board All data for this table was measured at an ambient temperature of 25 C Table 1 Summary of Features and Performance Symbol Mmm 90V G Vmma 26 finmn ES AC Input Frequency tims 64Hz ES Output Voltage Current d 89m Efficiency T Z789 AtTull load Eoo At full load all f t full load all at open frame room D mE Ature EU temperature still air 57 5C PCB Size 20mm width x 32mm length x 13mm height Initial Initial Application Initial Application 1 LED bulb Notes 1 The output current has Ij gppy ripple To reduce ripple current use a large electrolytic capacitor in parallel with the LED Ensure the capacitor voltage rating is high enough to withstand an open LED condition or use a Zener diode for protection 2 The output power is not equal to the apparent power due to the slight phase shift between the output voltage and current 2012 Fairchild Semiconductor Corporation 5 FEBFL7701 L30U003A Rev 1 0 2 SSS 3 FAIRCHILD eee CNN SEMICONDUCTORS 3 Photographs of the
19. y 47Hz 64Hz or TIT inne were Puncated EM 0 END awn new nme were Duncated to ERA CH1 Vcc CH2 VpRAIN CH3 ViED CH4 lLeD CH1 Vcc CH2 VpRAIN CH3 ViED CH4 lLED Figure 19 Input Voltage 220Vac Input Frequency Figure 20 Input Voltage 220Vac Input Frequency 47Hz 64Hz MI WB NI IN a I M Ay ov Sy atty ay A102 mv d Trang number s in Me Sename were TUuNcated to atow auto numbenng H1 Vcc CH2 VpRAIN CH3 Vieb CH4 ligp H1 Vcc CH2 VpRAIN CH3 ViED CH4 ligp Figure 21 Input Voltage 265Vac Input Frequency Figure 22 Input Voltage 265Vac Input Frequency 47Hz 64Hz 2012 Fairchild Semiconductor Corporation 13 FEBFL7701 L30U003A Rev 1 0 2 SSS FAIRCHILD RE re 7 SEMICONDUCTORS ww fairchildsemi com Table 2 Output Characteristics by Input Voltage amp Frequency a eee eee eee ee 180V ac 28 13V 84 94mA 28 10V 84 86mA 220V Ac 28 12V 85 66mA 28 14V 85 77mA 2012 Fairchild Semiconductor Corporation 14 FEBFL7701 L30U003A Rev 1 0 2 SSS FAIRCHILD ssl ww faircliildsBimi amp gm SEMICONDUCTORS 8 4 Typical Waveforms Abnormal Mode LED Open Figure 23 and Figure 24 show the open load condition test method and result When the LED disconnects from the system the IC cannot operate because the HV pin is disconnected L1 15mH e gt a D2 1N4148 Q1 FQN1N50C R4 510R e ess L2 15mH Figure 23 Open
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