Design Example Report Title Broad TRIAC Dimmer Capability 6.9 W LED Driver Using LinkSwitchTM-PH LNK404EG Specification 185 VAC – 264 VAC (50 Hz) Input; 26.5 VTYP, 260 mA Output Application LED Driver Author Applications Engineering Department Document Number DER-269 Date March 7, 2011 Revision 1.0 Summary and Features Superior performance and end user experience o TRIAC dimmer compatible Compatibility includes low cost leading edge and high power rating types No output flicker >1000:1 dimming range (dependant on dimmer model) o Clean monotonic start-up – no output blinking o Fast start-up (<100 ms) – no perceptible delay o Consistent dimming performance unit to unit Highly energy efficient o ≥78% at 230 VAC Frequency jitter for smaller, lower cost EMI filter components Integrated protection and reliability features o Output open circuit / output short-circuit protected with auto-recovery o Line input overvoltage shutdown extends voltage withstand during line faults. o Auto-recovering thermal shutdown with large hysteresis protects both components and printed circuit board o No damage during brown-out or brown-in conditions PATENT INFORMATION The products and applications illustrated herein (including transformer construction and circuits external to the products) may be covered by one or more U.S. and foreign patents, or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations' patents may be found at www.powerint.com. Power Integrations grants its customers a license under certain patent rights as set forth at <http://www.powerint.com/ip.htm>. Power Integrations 5245 Hellyer Avenue, San Jose, CA 95138 USA. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 Table of Contents 1 2 3 4 5 Introduction.................................................................................................................4 Prototype Provisions to Meet Safety Standards .........................................................6 Power Supply Specification ........................................................................................7 Schematic...................................................................................................................8 Circuit Description ......................................................................................................9 5.1 Input Filtering.......................................................................................................9 5.2 LinkSwitch-PH Primary........................................................................................9 5.3 Bias and Output Rectification ..............................................................................9 5.4 TRIAC Phase Dimming Control...........................................................................9 5.5 TRIAC Active Load............................................................................................10 6 PCB Layout ..............................................................................................................11 7 Bill of Materials .........................................................................................................14 7.1 Main Board ........................................................................................................14 7.2 Daughter Board .................................................................................................15 8 Transformer Specification.........................................................................................16 8.1 Electrical Diagram .............................................................................................16 8.2 Electrical Specifications.....................................................................................16 8.3 Materials............................................................................................................16 Transformer Build Diagram ...............................................................................17 8.4 8.5 Transformer Construction..................................................................................17 9 Transformer Design Spreadsheet.............................................................................18 10 Performance Data.................................................................................................21 10.1 Efficiency ...........................................................................................................22 10.2 Line and Load....................................................................................................23 10.3 Power Factor .....................................................................................................24 10.4 Total Harmonic Distortion ..................................................................................25 11 Thermal Performance ...........................................................................................26 11.1 Non-Dimming Measurements............................................................................26 11.2 Dimming Measurements....................................................................................28 12 Harmonic Data ......................................................................................................29 12.1 8 LED Load ~23 V Output .................................................................................29 12.2 9 LED Load ~27 V Output .................................................................................31 12.3 10 LED Load ~29 V Output ...............................................................................33 13 Waveforms............................................................................................................35 13.1 Drain Voltage and Current.................................................................................35 13.2 Output Diode Peak Inverse Voltage ..................................................................35 13.3 Input Line Voltage and Current (No TRIAC Dimmer Connected) ......................36 13.4 Input Voltage and Input Current Waveforms (During Dimming) ........................36 13.5 Output Voltage and Ripple Current ...................................................................37 13.6 Drain Voltage and Current Start-up Profile ........................................................38 13.7 Output Current and Drain Voltage at Shorted Output........................................39 13.8 Open Load Output Voltage................................................................................39 14 Dimmer Compatibility............................................................................................40 14.1 Korean Dimmer: New Touch, 120 W .................................................................40 Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 2 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 14.2 German Dimmer: REV300, 300 W.....................................................................41 14.3 German Dimmer: BUSCH 2250, 600 W ............................................................42 14.4 German Dimmer: MERTEN 572499, 400 W......................................................43 14.5 German Dimmer: BERKER 2875, 600 W ..........................................................44 15 Conducted EMI .....................................................................................................45 15.1 Conducted EMI Test Set-up ..............................................................................46 16 Revision History ....................................................................................................47 Important Note: Although this board is designed to satisfy safety isolation requirements, the engineering prototype has not been agency approved. Therefore, all testing should be performed using an isolation transformer to provide the AC input to the prototype board. Page 3 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 1 Introduction The document describes a high power-factor corrected dimmable LED driver designed to drive 26.5 V LED at 260 mA from an input voltage range of 185 VAC to 264 VAC. The LED driver utilizes the LNK404EG from Power Integrations. LinkSwitch-PH ICs allow the implementation of cost effective and low component count LED drivers which both meet power factor and harmonics limits but also offer enhanced end user experience. This includes ultra-wide dimming range, flicker free operation (even with low cost with AC line TRIAC dimmers) and fast, clean turn on. The topology used is an isolated flyback operating in continuous conduction mode. Output current regulation is sensed entirely from the primary side eliminating the need for secondary side feedback components. No external current sensing is required on the primary side either as this is performed inside the IC further reducing components and losses. The internal controller adjusts the MOSFET duty cycle to maintain a sinusoidal input current and therefore high power factor and low harmonic currents. The LNK404EG also provides a sophisticated range of protection features including autorestart for open control loop and output short-circuit conditions. Line overvoltage provides extended line fault and surge withstand, output overvoltage protects the supply should the load be disconnect and accurate hysteretic thermal shutdown ensures safe average PCB temperatures under all conditions. In any LED luminaries the driver determines many of the performance attributes experienced by the end customer (user) including startup time, dimming, flicker and unit to unit consistency. For this design a focus was given to compatibility with as wider range of dimmers including high power (1000 W) rated dimmers at 230 VAC. This document contains the LED driver specification, schematic, PCB diagram, bill of materials, transformer documentation and typical performance characteristics. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 4 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG Figure 1 – Populated Circuit Board Photograph (Top View). PCB Outline Designed to Fit Inside A19 Enclosure. Figure 2 – Populated Circuit Board Photograph Single Sided PCB (Bottom View). Page 5 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 2 Prototype Provisions to Meet Safety Standards 1. Output capacitor C4 located on the bottom side of the board is in closed proximity to the primary components. If not enough spacing is met during the final assembly, this capacitor should be wrapped by 3 layers of safety approved tape, i.e. 3M polyester film or equivalent. 2. The transformer (T1) core is considered primary due to the proximity of the primary windings to the core. The nearest secondary components are the output terminals. Core wrapping must be employed to provide adequate safety spacing and isulation. 3. The body of Y capacitor C17 must also be wrapped with safety insulation tape or equivalent form of reinforced insulation if its distance from the transformer cannot be maintained. 2 (T1) 3 (C17) 1 (C4) Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 6 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 3 Power Supply Specification The table below represents the minimum acceptable performance of the design. Actual performance is listed in the results section. Description Symbol Min Typ Max Units Comment 2 Wire – no P.E. Input Voltage Frequency Output Output Voltage VIN fLINE 185 230 50 264 VAC Hz VOUT 22 26.5 29 V Output Current IOUT 0.260 A POUT 6.9 W Total Output Power Continuous Output Power Efficiency Full Load 78 % VOUT = 22, VIN = 230 / 60Hz VAC, 25°C o Measured at POUT 25 C Environmental Conducted EMI Meets CISPR 15B / EN55015B Designed to meet IEC950 / UL1950 Class II Safety Ring Wave (100 kHz) Differential Mode (L1-L2) Common mode (L1/L2-PE) Power Factor Harmonics Ambient Temperature Page 7 of 48 Measured at VOUT(TYP), IOUT(TYP) and 230 VAC 0.9 EN 61000-3-2 Class C TAMB 25 o C Free convection, sea level Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 4 Schematic Figure 3 – LinkSwitch-PH LED DRIVER Schematic (TRIAC Active Bleeder Circuit in Dotted Line). Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 8 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 5 Circuit Description The LinkSwitch-PH device is a controller and integrated 725 V MOSFET intended for use in LED driver applications. The LinkSwitch-PH is configured for use in a single-stage continuous conduction mode flyback topology and provides a primary side regulated constant current output while maintaining high power factor from the AC input. 5.1 Input Filtering Fuse F1 provide protection from catastrophic failure of any of the primary side components. Bridge BR1 rectifies the AC line voltage. Inductor L1-L4, R2, R3, R8, R9, and C10, provide EMI filtering together with C17 Y capacitor. Small bulk capacitor C10 is required for a low impedance path for the primary switching current. A low value of capacitance is necessary to maintain a power factor of greater than 0.8. 5.2 LinkSwitch-PH Primary Diode D6 and C8 detect the peak AC line voltage. This voltage is converted to a current into the V pin via R4, R7 and R13. Diode D7 and R13 provide additional V pin current during deep dimming to inhibit the undervoltage threshold of the IC. The presence of D7 disables the undervoltage feature of the IC without affecting the overvoltage protection. The V pin current and the FEEDBACK (FB) pin current are used internally to control the average output LED current. Resistor R19 was set to 24.9 k to achieve tight line and load regulation. Diode D1, R26, R28, R25 and C16 clamp the drain voltage to a safe level from the leakage inductance voltage spike. Diode D5 is necessary to prevent reverse current from flowing through the LinkSwitch-PH device. 5.3 Bias and Output Rectification Diode D3, C6, R5, and R18 create the primary bias supply. This voltage created from the transformer bias winding supplies bias current into the BYPASS (BP) pin through D4 and R10. Capacitor C12 is the main supply for the LinkSwitch-PH, which is charged to ~6 V at start-up from an internal high-voltage current source tied to the device DRAIN pin. A current proportional to the output voltage from the primary bias winding is fed into the FB pin through R15. Diode D2 rectifies the secondary winding while capacitor C4 filters the output. VR3, C15, R23, and Q2 provide an open load overvoltage protection function. This protects output capacitors C4 from excessive voltage should the load be disconnected. 5.4 TRIAC Phase Dimming Control Resistors R16 act as a damping network preventing the input current from ringing negative when the TRIAC dimmer turns on and thereby creating flicker. SCR Q3, R11, R12 and C13 shorts R16 after the transient has subsided and thus saves unnecessary power loss on R16. Capacitors C9, C11 and R10 and R17 provides the latching current for the TRIAC once conducting and also helps further dampen ringing. Page 9 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 5.5 TRIAC Active Load The TRIAC active load formed by Q4, R29 and the entire sub circuit on the small daughter board is used to satisfy compatibility with high power TRIACs (>600 W). This network draws a constant current of ~40 mA once activated. Resistors R31-R33 sense the average input voltage and switches on the active load Q4 for conduction angles ~<90 degrees and thus provides the holding current required by the TRIAC. The holding current drawn by the active load is set by VR4 and parallel combination of R20 and R17. Transistor Q5 turns-off the active load during full phase (and ~>90 degrees) conduction and thus eliminate its associated losses during non dimming conditions. Resistors R34, R35 and Q7 provide hysteresis on the average sensing network. Voltage regulator VR5 and VBE of Q5 and Q6 sets the turn-on and turn-off threshold of the TRIAC active load. Power from this circuit is drawn from the bias winding supply. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 10 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 6 PCB Layout Figure 4 – Printed Circuit Layout, Top Side (Designed to Fit Inside A19 Lamp Form Factor). Page 11 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 Figure 5 – Printed Circuit Layout, Bottom Side. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 12 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG Figure 6 – TRIAC Active Load Daughter Board PCB Layout, Top. Figure 7 – TRIAC Active Load Daughter Board PCB Layout, Top. Page 13 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 7 Bill of Materials 7.1 Main Board Item Qty Ref Des Description 1 1 BR1 600 V, 0.5 A, Bridge Rectifier, SMD, MBS-1, 4-SOIC 2 1 C4 3 1 4 Mfg Part Number Mfg MB6S-TP Micro Commercial 270 F, 50 V, Electrolytic, Very Low ESR, 30 m, (10 x 20) EKZE500ELL271MJ20S Nippon ChemiCon C6 22 F, 50 V, Electrolytic, Low ESR, 900 m, (5 x 11.5) ELXZ500ELL220MEB5D Nippon ChemiCon 1 C8 1 F, 400 V, Electrolytic, (6.3 x 11) EKMG401ELL1R0MF11D United ChemiCon 5 2 C9 C11 100 nF, 500 V, Ceramic, X7R, 1812 VJ1812Y104KXEAT Vishay 6 1 C10 33 nF, 400 V, Film ECQ-E4333KF Panasonic 7 1 C12 10 F, 16 V, Ceramic, X5R, 0805 GRM21BR61C106KE15L Murata 8 1 C13 22 nF, 50 V, Ceramic, X7R, 0805 ECJ-2VB1H223K Panasonic 9 1 C15 100 nF 25 V, Ceramic, X7R, 0603 ECJ-1VB1E104K Panasonic 10 1 C16 1 nF, 1000 V, Ceramic, X7R, 0805 C0805C102KDRACTU Kemet 11 1 C17 1 nF, Ceramic, Y1 ECK-ANA102MB Panasonic 12 1 D1 600 V, 1 A, Fast Recovery, 250 ns, SMA RS1J-13-F Diodes, Inc 13 1 D2 150 V, 1 A, Ultrafast Recovery, 35 ns, SMB Case 14 2 D3 D7 250 V, 0.2 A, Fast Switching, 50 ns, SOD-323 MURS115T3 On Semi BAV21WS-7-F Diodes, Inc 15 1 D4 75 V, 0.15 A, Fast Switching, 4 ns, MELF LL4148-13 Diodes, Inc 16 1 D5 DIODE ULTRA FAST, SW, 200 V, 1 A, SMA US1D-13-F Diodes, Inc 17 1 D6 1000 V, 1 A, Rectifier, Glass Passivated, DO-213AA (MELF) DL4007-13-F Diodes, Inc 18 1 507-1181 Belfuse 19 4 F1 L1 L2 L3 L4 B82144A2475J Epcos 20 1 MMBT3904LT1G On Semi FS0202DA Fagor Q2 3.15 A, 250 V, Slow, RST 4.7 mH, 90 mA, 20 , RF Inductor NPN, Small Signal BJT, 40 V, 0.2 A, SOT-23 21 1 Q3 SCR, 400 V, 1.25 A, TO-92 22 1 Q4 500 V, 4.4 A, 1200 m. N-Channel, TO-220F 23 2 R2 R3 24 1 R4 25 1 26 3 27 1 28 2 29 2 30 31 STP5NK50ZFP ST 4.7 k, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ472V Panasonic 2.4 M, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ245V Panasonic R5 R6 R10 R18 R7 22 , 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ220V Panasonic 10 k, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ103V Panasonic 1.50 M, 1%, 1/4 W, Thick Film, 1206 ERJ-8ENF1504V Panasonic 10 k, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ103V Panasonic 750 k, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ754V Panasonic 1 R8 R9 R11 R12 R13 100 k, 1%, 1/16 W, Thick Film, 0603 ERJ-3EKF1003V Panasonic 2 R14 510 , 5%, 2 W, Metal Oxide RSF200JB-510R Yageo 32 1 R15 178 k, 1%, 1/16 W, Thick Film, 0603 ERJ-3EKF1783V Panasonic 33 1 R16 270 , 5%, 1 W, Metal Oxide RSF100JB-270R Yageo 34 1 R19 49.9 k, 1%, 1/16 W, Thick Film, 0603 ERJ-3EKF4992V Panasonic 35 1 R23 750 , 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ751V Panasonic 36 1 R25 100 , 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ101V Panasonic Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 14 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 37 2 38 1 R26 R28 R29 39 1 RV1 40 1 U1 ERJ-8GEYJ204V 200 k, 5%, 1/4 W, Thick Film, 1206 Panasonic 1 k, 5%, 2 W, Metal Oxide RSF200JB-1K0 Yageo 275 V, 23 J, 7 mm, RADIAL V275LA4P LinkSwitch-PH, eSIP LNK404EG 41 1 U2 CPV-RM6S/I-1S-8PD Littlefuse Power Integrations Ferroxcube 42 1 VR3 39 V, 5%, 150 mW, SSMINI-2 MAZS39000L Panasonic 43 1 VR4 8.2 V, 5%, 150 mW, SSMINI-2 MAZS0820ML Panasonic 7.2 Bobbin, RM6_S/I, Vertical, 4 pins w 2 pin clip Daughter Board Item Qty Ref Des Description Mfg Part Number Mfg 45 2 C14 C19 10 nF 50 V, Ceramic, X7R, 0603 ECJ-1VB1H103K Panasonic 46 1 C18 10 F, 16 V, Ceramic, X5R, 0805 GRM21BR61C106KE15L Murata 47 1 220 nF, 25 V, Ceramic, X7R, 0805 ECJ-2YB1E224K Panasonic 48 3 NPN, Small Signal BJT, 40 V, 0.2 A, SOT-23 MMBT3904LT1G On Semi 49 2 C20 Q5 Q6 Q7 R17 R20 200 , 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ201V Panasonic 750 k, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ754V Panasonic 50 4 R21 R22 R32 R33 51 1 R24 10 k, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ103V Panasonic 52 1 R30 10 k, 5%, 1/4 W, Thick Film, 1206 ERJ-8GEYJ103V Panasonic 53 1 R31 30 k, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ303V Panasonic 54 1 R34 470 k, 5%, 1/8 W, Thick Film, 0805 ERJ-6GEYJ474V Panasonic 55 1 R35 4.7 k, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ472V Panasonic 56 1 R36 1 k, 5%, 1/10 W, Thick Film, 0603 ERJ-3GEYJ102V Panasonic 57 1 VR4 8.2 V, 5%, 150 mW, SSMINI-2 MAZS0820ML Panasonic 58 1 VR5 3 V, 5%, 500 mW, DO-213AA (MELF) ZMM5225B-7 Diodes Inc Page 15 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 8 Transformer Specification 8.1 Electrical Diagram Figure 8 – Transformer Electrical Diagram. 8.2 Electrical Specifications Electrical Strength Primary Inductance Resonant Frequency Primary Leakage Inductance 8.3 1 second, 60 Hz, from pins 1-4 and leads FL1-FL2. Pins 1-2, all other windings open, measured at 100 kHz, 0.4 VRMS Pins 1-2, all other windings open Pins 1-2, with leads FL1-FL2 shorted, measured at 100kHz, 0.4 VRMS. 3000 VAC 3.3 mH, ±5% 800 kHz (Min.) 30 H (Max.) Materials Item [1] [2] [3] [4] [5] [6] [7] Description Core: RM6 Bobbin: RM6-Vertical, 8 pins (4/4). AllStar P/N: CPV-RM6 5/1-1S. Magnet wire: #37 AWG. Magnet wire: #27 AWG Triple Insulated Wire. Tape: 3M 1298 Polyester Film, 6.5mm wide, 2.0 mils thick or equivalent. Core clip: Ferrox Cube #: FXC-0102718, CLI-RM6/I. Varnish: Dolph BC-359 or equivalent. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 16 of 48 07-Mar-11 8.4 DER-269 6.9 W A19 LED Driver Using LNK404EG Transformer Build Diagram Figure 9 – Transformer Build Diagram. 8.5 Transformer Construction Bobbin Preparation Winding Preparation WD1 1st Primary Insulation WD2 Secondary Insulation WD3 Bias Insulation WD4 2nd Primary Insulation Final Assembly Page 17 of 48 Remove all secondary pins and flange of bobbin item [2]. Cut all primary side pins. Place the bobbin on the mandrel with the pin side is on the left side. Winding direction is clockwise direction. Take ~12 ft of wire item [3], start at pin 2, and wind 44 turns from left to right. Place 1 layer of tape item [5], then continue winding 44 turns from right to left and leave the remain of this wire on the mandrel for the WD4 2nd primary winding. Place 1 layer of tape item [5]. Use wire item [4], starting as FL1 (floating lead), wind 22 turns in 2 layers from left to right then from right to left and end at FL2. (The last turn might be on 3rd layer). Place 1 layer of tape item [5]. Start at pin 3, wind 27 turns of wire item [3] from left to right, spread the wire evenly. At the last turn bring the wire back to the left and terminate at pin 4. Place 1 layer of tape item [5]. Use the remain wire from WD1 1st primary, continue winding 40 turns from left to right, at the last turn bring the wire back to the left and terminate at pin 1. Place 2 layers of tape item [5]. Grind, assemble, and secure core halves with clips item [6]. Vanish item [7]. Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 9 Transformer Design Spreadsheet ACDC_LinkSwitchPH_061010; Rev.1.1; Copyright Power Integrations 2010 INPUT ENTER APPLICATION VARIABLES INFO OUTPUT Dimming required NO NO VACMIN VACMAX fL 187 264 187 264 50 VO 26.40 Current Limit Mode ILIMITMIN ILIMITMAX fS fSmin fSmax IV RV RV2 IFB RFB1 V V Hz V VO_MAX VO_MIN V_OVP IO 0.26 PO n VB 32 ENTER LinkSwitch-PH VARIABLES LinkSwitch-PH LNK404 Chosen Device UNIT 29.04 23.76 31.94 V V V 6.9 0.8 32 W V Universal LNK404 RED Power Out 15.5W RED 4.00 110.00 VDS 0.81 0.92 66000 62000 70000 78.4 4 1.402 110.0 263.6 A A Hz Hz Hz uA M-ohms M-ohms uA k-ohms 10 V VD 0.50 V VDB 0.70 V Key Design Parameters KP LP VOR Expected IO (average) 1.31 Warning 156.51 1.31 3315 156.51 0.27 KP_VACMAX 1.35 TON_MIN 2.22 PCLAMP 0.05 ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES Core Type RM6S/I RM6S/I Bobbin RM6S/I_BOBBIN AE 0.37 LE 2.92 AL 2150 BW 6.4 M 0 Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com uH V A us W P/N: cm^2 cm nH/T^2 mm mm LinkSwitch-PH_061010: Flyback Transformer Design Spreadsheet Select 'YES' option if dimming is required. Otherwise select 'NO'. Minimum AC Input Voltage Maximum AC input voltage AC Mains Frequency Typical output voltage of LED string at full load Maximum expected LED string Voltage. Minimum expected LED string Voltage. Over-voltage protection setpoint Typical full load LED current Output Power Estimated efficiency of operation Bias Voltage 115 Doubled/230V 15.5W Select "RED" for reduced Current Limit mode or "FULL" for Full current limit mode Minimum current limit Maximum current limit Switching Frequency Minimum Switching Frequency Maximum Switching Frequency V pin current Upper V pin resistor Lower V pin resistor FB pin current (85 uA < IFB < 210 uA) FB pin resistor LinkSwitch-PH on-state Drain to Source Voltage Output Winding Diode Forward Voltage Drop (0.5 V for Schottky and 0.8 V for PN diode) Bias Winding Diode Forward Voltage Drop !!! Warning. KP is too high. Decrease KP Primary Inductance Reflected Output Voltage. Expected Average Output Current !!! Info. PF at high line may be less than 0.9. Decrease KP for higher PF Minimum on time at maximum AC input voltage Estimated dissipation in primary clamp * Core Effective Cross Sectional Area Core Effective Path Length Ungapped Core Effective Inductance Bobbin Physical Winding Width Safety Margin Width (Half the Primary to Secondary Creepage Distance) Page 18 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG L NS 22 DC INPUT VOLTAGE PARAMETERS VMIN VMAX CURRENT WAVEFORM SHAPE PARAMETERS DMAX IAVG 3 22 Number of Primary Layers Number of Secondary Turns 264 373 V V 0.32 0.04 A IP 0.35 A IRMS 0.09 A TRANSFORMER PRIMARY DESIGN PARAMETERS LP NP NB ALG 3315 128 27 202 uH Peak input voltage at VACMIN Peak input voltage at VACMAX Minimum duty cycle at peak of VACMIN Average Primary Current Peak Primary Current (calculated at minimum input voltage VACMIN) Primary RMS Current (calculated at minimum input voltage VACMIN) Primary Inductance Primary Winding Number of Turns Bias Winding Number of Turns nH/T^2 Gapped Core Effective Inductance Maximum Flux Density at PO, VMIN BM 2437 Gauss (BM<3100) BP 2949 Gauss Peak Flux Density (BP<3700) AC Flux Density for Core Loss Curves BAC 1219 Gauss (0.5 X Peak to Peak) ur 1350 Relative Permeability of Ungapped Core LG 0.21 mm Gap Length (Lg > 0.1 mm) BWE 19.2 mm Effective Bobbin Width Maximum Primary Wire Diameter OD 0.15 mm including insulation Estimated Total Insulation Thickness (= INS 0.03 mm 2 * film thickness) DIA 0.12 mm Bare conductor diameter Primary Wire Gauge (Rounded to next AWG 37 AWG smaller standard AWG value) Bare conductor effective area in circular CM 20 Cmils mils Primary Winding Current Capacity (200 CMA 228 Cmils/Amp < CMA < 600) LP_TOL 10 Tolerance of primary inductance TRANSFORMER SECONDARY DESIGN PARAMETERS (SINGLE OUTPUT EQUIVALENT) Lumped parameters ISP 2.03 A Peak Secondary Current ISRMS 0.74 A Secondary RMS Current IRIPPLE 0.70 A Output Capacitor RMS Ripple Current Secondary Bare Conductor minimum CMS 149 Cmils circular mils Secondary Wire Gauge (Rounded up to AWGS 28 AWG next larger standard AWG value) Secondary Minimum Bare Conductor DIAS 0.32 mm Diameter Secondary Maximum Outside Diameter ODS 0.29 mm for Triple Insulated Wire VOLTAGE STRESS PARAMETERS Estimated Maximum Drain Voltage VDRAIN 686 V assuming maximum LED string voltage (Includes Effect of Leakage Inductance) Output Rectifier Maximum Peak Inverse PIVS 96 V Voltage (calculated at VOVP, excludes leakage inductance spike) Bias Rectifier Maximum Peak Inverse PIVB 117 V Voltage (calculated at VOVP, excludes leakage inductance spike) FINE TUNING (Enter measured values from prototype) V pin Resistor Fine Tuning RV1 4.00 M-ohms Upper V Pin Resistor Value RV2 1.40 M-ohms Lower V Pin Resistor Value VAC1 115.0 V Test Input Voltage Condition1 VAC2 230.0 V Test Input Voltage Condition2 Page 19 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 IO_VAC1 IO_VAC2 RV1 (new) RV2 (new) 0.26 0.26 4.00 1.40 A A M-ohms M-ohms V_OV 325.6 V V_UV 72.4 V 264 1E+012 28.8 35.2 0.26 0.26 263.6 1.00E+12 k-ohms k-ohms V V A A k-ohms k-ohms FB pin resistor Fine Tuning RFB1 RFB2 VB1 VB2 IO1 IO2 RFB1 (new) RFB2(new) Measured Output Current at VAC1 Measured Output Current at VAC2 New RV1 New RV2 Typical AC input voltage at which OV shutdown will be triggered Typical AC input voltage beyond which power supply can startup Upper FB Pin Resistor Value Lower FB Pin Resistor Value Test Bias Voltage Condition1 Test Bias Voltage Condition2 Measured Output Current at Vb1 Measured Output Current at Vb2 New RFB1 New RFB2 Note: The KP is higher than normal to keep the circuit operating in discontinuous mode (DCM) at high line for improved efficiency. The design does pass harmonic and power factor specifications. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 20 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 10 Performance Data All measurements performed at room temperature. Yokogawa Power Meter Model: WT210 was used to measure accurately the true output power and input power of the unit. Input VAC (VRMS) 185 198 220 230 253 264 V (VRMS) 184.8 197.8 219.9 229.8 252.9 263.8 Input Measurement I P (ARMS) (W) PF 0.046 8.006 0.939 0.044 8.046 0.930 0.040 8.051 0.913 0.039 8.035 0.905 0.036 8.018 0.887 0.035 8.003 0.878 %ATHD 25.98 27.14 28.56 29.15 30.57 31.38 Load Measurement V I PO (VDC) (ADC) (W) 23.64 0.268 6.40 23.64 0.269 6.43 23.63 0.268 6.40 23.62 0.267 6.37 23.61 0.266 6.33 23.60 0.265 6.31 Efficiency (%) 79.9 79.9 79.5 79.3 78.9 78.8 %ATHD 25.45 26.71 28.14 28.66 29.85 30.52 Load Measurement V I PO (VDC) (ADC) (W) 26.76 0.266 7.19 26.74 0.267 7.21 26.72 0.267 7.19 26.69 0.266 7.15 26.66 0.263 7.08 26.63 0.262 7.04 Efficiency (%) 79.5 79.5 79.2 79.0 78.6 78.4 %ATHD 25.01 26.23 27.91 28.26 29.22 29.93 Load Measurement V I PO (VDC) (ADC) (W) 29.57 0.264 7.88 29.55 0.266 7.91 29.53 0.265 7.90 29.51 0.264 7.86 29.48 0.261 7.77 29.46 0.260 7.72 Efficiency (%) 79.2 79.2 79.1 78.9 78.4 78.2 Table 1 – 8 LED String (~23 V) Load Test Data. Input VAC (VRMS) 185 198 220 230 253 264 V (VRMS) 184.9 197.9 220.0 229.9 253.0 264.0 Input Measurement I P (ARMS) (W) PF 0.052 9.045 0.946 0.049 9.073 0.938 0.045 9.074 0.923 0.043 9.047 0.916 0.040 9.004 0.900 0.038 8.974 0.892 Table 2 – 9 LED String (~26 V) Load Test Data. Input VAC (VRMS) 185 198 220 230 253 264 V (VRMS) 184.9 197.9 220.0 229.9 253.0 264.0 Input Measurement I P (ARMS) (W) PF 0.057 9.949 0.952 0.053 9.983 0.944 0.049 9.988 0.931 0.047 9.967 0.925 0.043 9.909 0.910 0.041 9.869 0.903 Table 3 – 10 LED String (~29 V) Load Test Data. Page 21 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 10.1 Efficiency 80.0 8 LED 9 LED 10 LED 79.8 79.6 Efficiency (%) 79.4 79.2 79.0 78.8 78.6 78.4 78.2 78.0 180 190 200 210 220 230 240 250 260 270 Input Voltage (VAC) Figure 10 – Efficiency vs. Input Voltage, Room Temperature. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 22 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 10.2 Line and Load 0.271 8 LED 9 LED 10 LED Output Current (A) 0.269 0.267 0.265 0.263 0.261 0.259 180 190 200 210 220 230 240 250 260 Input Voltage (VAC) Figure 11 – Line and Load Regulation. Page 23 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com 270 DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 10.3 Power Factor 0.96 8 LED 9 LED 10 LED 0.95 Power Factor 0.94 0.93 0.92 0.91 0.90 0.89 0.88 0.87 180 190 200 210 220 230 240 250 260 270 Input Voltage (VAC) Figure 12 – Power Factor vs. Line and Load. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 24 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 10.4 Total Harmonic Distortion 32 31 8 LED 9 LED 10 LED A-THD (%) 30 29 28 27 26 25 24 180 190 200 210 220 230 240 250 260 Input Voltage (VAC) Figure 13 – THD vs. Line and Load. Page 25 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com 270 DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 11 Thermal Performance The following infrared measurements were taken at room temperature after soaking the unit for 1 hour in the conditions stated below. Note: During dimming condition, the bleeder and active load components will have a high increase in temperature. The assumption is that during the final assembly, the whole board will be potted (encapsulated) inside the lamp enclosure. Junction temperature of active load MOSFET and bleeder resistors must be measured once potted to ensure that maximum component temperature ratings are not exceeded. The heat sink of Q4 can still be increased to further improve thermal performance. 11.1 Non-Dimming Measurements Figure 14 – Top Side Measurements, 230 VAC, 50 Hz, Non-Dimming. Figure 15 – LNK404EG, 230 VAC, 50 Hz, Non-Dimming. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 26 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG Figure 16 – Bottom Side Measurements, 230 VAC, 50 Hz, Non-Dimming. Figure 17 – Output Rectifier D2, 230 VAC, 50 Hz, Non-Dimming. Page 27 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 11.2 Dimming Measurements Figure 18 – 230 VAC, 50 Hz, 90º Phase (R29). Figure 19 – 230 VAC, 50 Hz, 90º Phase (Q4 Heat Sink). Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 28 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 12 Harmonic Data The design passes Class C requirement. 12.1 8 LED Load ~23 V Output n Measured (mA) 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 37.110 8.740 4.420 2.770 2.160 1.730 1.410 1.200 0.910 0.780 0.470 0.400 0.160 0.130 0.070 0.100 0.140 0.190 0.190 0.240 Base I Harmonics (mA/W) 230 V Limit (mA) Remarks 3.40000 1.90000 1.00000 0.50000 0.35000 0.29615 0.25667 0.22647 0.20263 0.18333 0.16739 0.15400 0.14259 0.13276 0.12419 0.11667 0.11000 0.10405 0.09872 27.435 15.331 8.069 4.035 2.824 2.390 2.071 1.827 1.635 1.479 1.351 1.243 1.151 1.071 1.002 0.941 0.888 0.840 0.797 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Table 4 – 8 LED Load Input Harmonics. Page 29 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 30 Class C Limit 8 LED Load Harmonic Current (mA) 25 20 15 10 5 0 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 Harmonic Order Figure 20 – Input Harmonics, 230 VAC, 50 Hz, 8 LED String. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 30 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 12.2 9 LED Load ~27 V Output n Measured (mA) 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41.320 9.770 4.750 2.860 2.140 1.700 1.370 1.220 0.850 0.740 0.460 0.390 0.170 0.140 0.150 0.190 0.240 0.270 0.280 0.320 Base I Harmonics (mA/W) 230 V Limit (mA) Remarks 3.40000 1.90000 1.00000 0.50000 0.35000 0.29615 0.25667 0.22647 0.20263 0.18333 0.16739 0.15400 0.14259 0.13276 0.12419 0.11667 0.11000 0.10405 0.09872 30.906 17.271 9.090 4.545 3.182 2.692 2.333 2.059 1.842 1.667 1.522 1.400 1.296 1.207 1.129 1.061 1.000 0.946 0.897 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Table 5 – 9 LED Load Input Harmonics. Page 31 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 35 Class C Limit 9 LED Load Harmonic Current (mA) 30 25 20 15 10 5 0 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 Harmonic Order Figure 21 – Input Harmonics, 230 VAC, 50 Hz, 9 LED String. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 32 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 12.3 10 LED Load ~29 V Output n Measured (mA) 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 45.140 10.680 5.110 2.980 2.200 1.660 1.330 1.150 0.960 0.850 0.530 0.480 0.230 0.210 0.100 0.150 0.210 0.270 0.280 0.280 Base I Harmonics (mA/W) 230 V Limit (mA) Remarks 3.40000 1.90000 1.00000 0.50000 0.35000 0.29615 0.25667 0.22647 0.20263 0.18333 0.16739 0.15400 0.14259 0.13276 0.12419 0.11667 0.11000 0.10405 0.09872 33.993 18.996 9.998 4.999 3.499 2.961 2.566 2.264 2.026 1.833 1.674 1.540 1.426 1.327 1.242 1.166 1.100 1.040 0.987 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Table 6 – 10 LED Load Input Harmonics. Page 33 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 40 Class C Limit 10 LED Load 35 Harmonic Current (mA) 07-Mar-11 30 25 20 15 10 5 0 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 Harmonic Order Figure 22 – Input Harmonics, 230 VAC, 50 Hz, 10 LED String. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 34 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 13 Waveforms 13.1 Drain Voltage and Current Figure 23 – 185 VAC, Full Load. Upper: IDRAIN, 0.1 A / div. Lower: VDRAIN, 100 V, 10 s / div. Figure 24 – 265 VAC, Full Load. Upper: IDRAIN, 0.1 A / div. Lower: VDRAIN, 100 V / div., 10 s / div. 13.2 Output Diode Peak Inverse Voltage Figure 25 – 265 VAC, Full Load. VPIV, 20 V, 2 ms / div. Page 35 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 13.3 Input Line Voltage and Current (No TRIAC Dimmer Connected) Figure 26 – 185 VAC, Full Load. Upper: IIN, 0.05 A / div. Lower: VIN, 100 V, 10 ms / div. Figure 27 – 265 VAC, Full Load. Upper: IIN, 0.05 A / div. Lower: VIN, 100 V / div., 10 ms / div. 13.4 Input Voltage and Input Current Waveforms (During Dimming) Figure 28 – 230 VAC, Full Phase. Upper: IIN, 0.05 A / div., 5 ms / div. Lower: VIN, 100 V / div. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Figure 29 – 230 VAC, 90° Phase. Upper: IIN, 0.05 A / div., 5 ms / div. Lower: VIN, 100 V / div. Page 36 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG Figure 30 – 230 VAC, 45° Phase. Lower: VIN, 100 V / div. Upper: IIN, 0.05 A / div., 5 ms / div. Figure 31 – 230 VAC, 18° Phase. Lower: VIN, 100 V / div. Upper: IIN, 0.05 A / div., 5 ms / div. 13.5 Output Voltage and Ripple Current Figure 32 – 185 VAC, Full Load. Lower: VOUT 5 V, 5 ms / div. Upper: IRIPPLE, 0.1 A / div. Page 37 of 48 Figure 33 – 265 VAC, Full Load. Lower: VOUT 5 V, 5 ms / div. Upper: IRIPPLE, 0.1 A / div. Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 13.6 Drain Voltage and Current Start-up Profile ` Figure 34 – 185 VAC, Full Load. Lower: VDRAIN, 100 V, 20 ms / div. Upper: IDRAIN, 0.1 A / div. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Figure 35 – 265 VAC, Full Load. Lower: VDRAIN, 100 V, 20 ms / div. Upper: IRIPPLE, 0.1 A / div. Page 38 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 13.7 Output Current and Drain Voltage at Shorted Output Figure 36 – 185 VAC, Full Load. Lower: VDRAIN, 100 V, 5 ms / div. Upper: IOUT, 0.2 A / div. Figure 37 – 265 VAC, Full Load. Lower: VDRAIN, 100 V, 5 ms / div. Upper: IOUT, 0.5 A / div. 13.8 Open Load Output Voltage Figure 38 – Output Voltage: 264 VAC. VOUT, 10 V / div., 500 ms / div. Page 39 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 14 Dimmer Compatibility Use only the specified rating for voltage and frequency of the particular dimmer to be tested for compatibility. Test dimmer only with its rated operating frequency. All measurements were taken at 230 VAC, 50 Hz Input, Room Temperature. 14.1 Korean Dimmer: New Touch, 120 W 300 New Touch 120 W Dimmer Output Current (mA) 250 200 150 100 50 0 70 80 90 100 110 120 130 140 150 160 170 Conduction Angle (º) Figure 39 – Korean Dimmer, New Touch. Conduction Angle (θ) 168.48 165 150 135 120 105 90 75 72 Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com IOUT (mA) 264 259 251 234 192 126 90 68.3 64.1 Page 40 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 14.2 German Dimmer: REV300, 300 W 300 REV 300 W Output Current (mA) 250 200 150 100 50 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Conduction Angle (º) Figure 40 – German Dimmer, REV300. Conduction Angle (θ) 152.10 150 135 120 105 90 75 60 45 30 21.6 18 16.2 14.4 Page 41 of 48 IOUT (mA) 254 253.7 235 183 113 86.1 67.7 47.4 34.45 21.7 6.12 2.6 1.1 0.25 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 14.3 German Dimmer: BUSCH 2250, 600 W 300 BUSCH 2250 600 W Output Current (mA) 250 200 150 100 50 0 40 50 60 70 80 90 100 110 120 Conduction Angle (º) 130 140 150 160 Figure 41 – German Dimmer. BUSCH 2250. Conduction Angle (θ) 155.16 150 135 120 105 90 75 60 45 43.20 Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com IOUT (mA) 256 255.7 240 190.5 119 91 73 49 34 28 Page 42 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 14.4 German Dimmer: MERTEN 572499, 400 W 300 MERTEN 400 W Output Current (mA) 250 200 150 100 50 0 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 Conduction Angle (º) Figure 42 – German Dimmer, MERTEN 572499. Conduction Angle (θ) 160.74 150 135 120 105 90 75 60 45 39.60 Page 43 of 48 IOUT (mA) 261 249 234 172 122 90 68 53 38 31.4 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 14.5 German Dimmer: BERKER 2875, 600 W 300 BERKER 600 W Output Current (mA) 250 200 150 100 50 0 45 55 65 75 85 95 105 115 Conduction Angle (º) 125 135 145 155 Figure 43 – German Dimmer, BERKER 2875. Conduction Angle (θ) 151.92 150 135 120 105 90 75 60 46.80 Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com IOUT (mA) 253 253 237 194 126 98 77.9 61 42.5 Page 44 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 15 Conducted EMI Note: Refer to table for margin to standard – blue line is peak measurement but limit line is quasi peak. Power Integrations 16.Nov 10 11:11 RBW MT 9 kHz 500 ms Att 10 dB AUTO dBµV 100 kHz 120 EN55015Q UNCAL 110 1 QP CLRWR 100 LIMIT CHECK 1 MHz PASS 10 MHz SGL 90 2 AV CLRWR TDF 80 70 60 EN55015A 50 6DB 40 30 20 10 0 -10 -20 9 kHz Trace1: 30 MHz EDIT PEAK LIST (Final Measurement Results) EN55015Q Trace2: EN55015A Trace3: --- TRACE FREQUENCY LEVEL dBµV DELTA LIMIT dB 2 Average 126.977840157 kHz 30.47 N gnd 2 Average 130.825395691 kHz 42.40 N gnd 2 Average 133.454986145 kHz 33.10 L1 gnd 2 Average 137.49880568 kHz 37.37 N gnd 1 Quasi Peak 198.193645035 kHz 53.92 L1 gnd -9.75 2 Average 198.193645035 kHz 43.06 L1 gnd -10.62 2 Average 264.49018761 kHz 35.64 L1 gnd -15.64 2 Average 332.507282579 kHz 35.99 L1 gnd -13.39 1 Quasi Peak 349.468495722 kHz 45.86 L1 gnd -13.10 1 Quasi Peak 397.727746704 kHz 47.00 N gnd -10.89 2 Average 397.727746704 kHz 36.45 N gnd -11.44 1 Quasi Peak 598.084042089 kHz 51.64 N gnd -4.35 2 Average 598.084042089 kHz 41.87 N gnd -4.12 2 Average 2.20222749414 MHz 26.75 N gnd -19.24 Figure 44 – Conducted EMI, 230 VAC, 60 Hz, 9 LED Load, EN55015 B Limits. Page 45 of 48 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 15.1 Conducted EMI Test Set-up Figure 45 – Conducted EMI Test Set-up. Power Integrations, Inc. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Page 46 of 48 07-Mar-11 DER-269 6.9 W A19 LED Driver Using LNK404EG 16 Revision History Date 07-Mar-11 Page 47 of 48 Author CA Revision 1.0 Description & changes Initial Release Reviewed Mktg & Apps Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-269 6.9 W A19 LED Driver Using LNK404EG 07-Mar-11 For the latest updates, visit our website: www.powerint.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein. POWER INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. PATENT INFORMATION The products and applications illustrated herein (including transformer construction and circuits external to the products) may be covered by one or more U.S. and foreign patents, or potentially by pending U.S. and foreign patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at www.powerint.com. Power Integrations grants its customers a license under certain patent rights as set forth at http://www.powerint.com/ip.htm. The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, DPA-Switch, PeakSwitch, CAPZero, SENZero, LinkZero, HiperPFS, HiperTFS, Qspeed, EcoSmart, Clampless, E-Shield, Filterfuse, StackFET, PI Expert and PI FACTS are trademarks of Power Integrations, Inc. Other trademarks are property of their respective companies. ©Copyright 2011 Power Integrations, Inc. Power Integrations Worldwide Sales Support Locations WORLD HEADQUARTERS 5245 Hellyer Avenue San Jose, CA 95138, USA. Main: +1-408-414-9200 Customer Service: Phone: +1-408-414-9665 Fax: +1-408-414-9765 e-mail: [email protected] GERMANY Rueckertstrasse 3 D-80336, Munich Germany Phone: +49-89-5527-3911 Fax: +49-89-5527-3920 e-mail: [email protected] JAPAN Kosei Dai-3 Building 2-12-11, Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa 222-0033 Japan Phone: +81-45-471-1021 Fax: +81-45-471-3717 e-mail: [email protected] TAIWAN 5F, No. 318, Nei Hu Rd., Sec. 1 Nei Hu District Taipei 114, Taiwan R.O.C. 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Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com APPLICATIONS FAX World Wide +1-408-414-9760 Page 48 of 48