Design Example Report Title 3.5W CV/CC Adapter using TNY264P Specification Input: 90 – 265 VAC Output: 5.5V /0.65A Application Cell Phone Charger Author Power Integrations Applications Department Document Number DER-35 Date April 5, 2004 Revision 1.0 Summary and Features This document is an engineering report describing a cell phone charger power supply utilizing a TNY264P, with the following features: • • • • • Low cost No Y-cap Meets EMI Very Low Leakage Current Does not require a TL431 The products and applications illustrated herein (including circuits external to the products and transformer construction) 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 5245 Hellyer Avenue, San Jose, CA 95138 USA. Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 Table Of Contents 1 2 3 4 5 6 Introduction................................................................................................................. 3 Power Supply Specification ........................................................................................ 4 Schematic................................................................................................................... 5 PCB Layout ................................................................................................................ 6 Bill Of Materials .......................................................................................................... 7 Transformer Specification........................................................................................... 8 6.1 Electrical Diagram................................................................................................... 8 6.2 Electrical Specifications .......................................................................................... 8 6.3 Materials ................................................................................................................. 8 6.4 Transformer Build Diagram..................................................................................... 9 6.5 Transformer Construction ....................................................................................... 9 7 Transformer Spreadsheets....................................................................................... 10 8 Performance Data .................................................................................................... 12 8.1 Efficiency .............................................................................................................. 12 8.2 No-load Input Power ............................................................................................. 13 8.3 Output Characteristic. ........................................................................................... 13 8.4 Line Regulation..................................................................................................... 14 9 Thermal Performance............................................................................................... 15 10 Waveforms ............................................................................................................... 16 10.1 Drain Voltage and Current, Normal Operation .................................................. 16 10.2 Output Voltage Start-up Profile ......................................................................... 16 10.3 Drain Voltage and Current Start-up Profile........................................................ 17 10.4 Load Transient Response (75% to 100% Load Step) ....................................... 17 10.5 Out put Ripple Measurements........................................................................... 18 10.5.1 Ripple Measurement Technique.................................................................... 18 10.5.2 Measurement Results.................................................................................... 19 11 Conducted EMI......................................................................................................... 20 12 Revision History ....................................................................................................... 21 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. Design Reports contain a power supply design specification, schematic, bill of materials, and transformer documentation. Performance data and typical operation characteristics are included. Typically only a single prototype has been built. Page 2 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 1 Introduction This document is an engineering report describing a cell phone charger power supply utilizing a TNY264P. The document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data. Figure 1 – Populated Circuit Board Photograph. Page 3 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 2 Power Supply Specification Description Input Voltage Frequency Output Output Voltage 1 Output Ripple Voltage 1 Output Current 1 Total Output Power Continuous Output Power Efficiency Symbol Min VIN fLINE 90 47 VOUT1 VRIPPLE1 IOUT1 5.1 Typ Max Units Comment 115/230 264 50/60 63 VAC Hz 2 Wire – no P.E. 5.4 600 5.7 100 720 V mV mA POUT 3.5 W η 55 % when in CV Mode 20 MHz Bandwidth when in CC mode Measured at Full Load Nominal Input Voltage 25 oC Environmental Conducted EMI Meets CISPR22B / EN55022B Designed to meet IEC950, UL1950 Class II Safety Ambient Temperature Page 4 of 22 TAMB 0 25 40 o C Free convection, sea level Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 3 Schematic Figure 2 – Schematic. Page 5 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 4 PCB Layout Figure 3 Printed Circuit Layout TOP Silk Screen and Copper Bottom Layers Figure 4 – Printed Circuit Layout. Bottom Silk Screen and Copper Bottom Layers. Page 6 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 5 Bill Of Materials Item Number Quantity Part Reference Description 1 2 3 4 2 1 1 1 C1 C2 C3 C4 C6 5 1 C7 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 4 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 C8 D1 D2 D3 D4 D5 D7 J1 J2 J3 J4 L1 Q1 R1 R2 R7 R8 R10 R11 R12 RF1 T1 U1 U2 VR2 Cap,Al Elect,4.7uF,400V,8mmX11.5mm,Sam Young Cap,Cer,470pF, 1000V, 10% CAP 0.1uF 50V CERM CHIP X7R 0805 SMD Cap,Al Elect,470uF,10V,8mmX11.5mm,KZE Series,NIPPON CHEMI-CON Cap,Al Elect,100uF,10V,5mmX11.5mm,LXZ Series,NIPPON CHEMICON CAP 1000pF 50V CERM CHIP X7R 0805 SMD Rectifier GPP 1000V 1A DO-41 RECT,DL4007-13 PASSIVATED 1A 1000V SMD MELF SLG41-60 DIODE SCHOTTKY,60V 1A Terminal,1Pin,18AWG CHOKE,1mH,SBCP_47HY102B,TOKIN TRANS,2N3906, PNP SS GP 200MA TO-92 Res, 200K, 1/2W, 5%, Carbon Film Res,100 1/10W 5% 0805 SMD Res, 1.8 ,1W, 5%, Metal Film Res,300 1/10W 5% 0805 SMD Res,5.1 1/10W 5% 0805 SMD Res,160 1/10W 5% 0805 SMD Res,10 1/10W 5% 0805 SMD Res, Wirewound,8.2 Ohm,2.5W,Flame Retardant BEE16_H_LOPROFILE_10P IC,TNY264P,L POWER SWITCHER 6W,DIP-8B IC,PC817A,PHOTOCOUPLER TRAN OUT CTR 80-160% 4-DIP Diode, Zener, 4.7V, 1/2W, 2%, DO-35 Page 7 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 6 Transformer Specification 6.1 Electrical Diagram NC W3 7 Turn #29AWG X3 1 1 8 W4 8 Turn #28TIW X2 W2 108Turn #33AWG 2 6 W1 18 Turns #33AWG X2 3 1 Figure 5 Transformer Electrical Diagram 6.2 Electrical Specifications Electrical Strength Primary Inductance Resonant Frequency Primary Leakage Inductance 6.3 1 second, 60 Hz, from Pins 1-5 to Pins 6-10 Pins 1-2, all other windings open, measured at 132 kHz, Pins 1-2, all other windings open Pins 1-2, with Pins 6-8 shorted, measured at 132 kHz. 3000 VAC 2030 µH, -/+10% 620 kHz (Min.) 65 µH (Max.) Materials Item [1] [2] [3] [4] [5] [6] [7] [8] Page 8 of 22 Description 2 Core: PC40EE16, TDK or equivalent Gapped for AL of 173nH/T Bobbin: Horizontal 10 pin Magnet Wire: #33 AWG Magnet Wire: #29 AWG Bus wire #29AWG Triple Insulated Wire: #28 AWG. Tape: 3M 1298 Polyester Film, 2.0 mils thick, 8.4 mm wide Varnish Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 6.4 Cell Phone Adapter TNY264 April 5, 2004 Transformer Build Diagram BOBBIN SECONDARY SIDE BOBBIN PRIMARY SIDE 6 Secondary 8 W4 W3 Shield 1 1 W2 Primary 2 1 3 W1 Core Shield Figure 6 – Transformer Build Diagram. 6.5 Transformer Construction Bobbin Preparation Core Cancellation Basic Insulation Primary Basic Insulation Shield Shield Basic Insulation Secondary Winding Outer Wrap Core Preparation Final Assembly Page 9 of 22 Place the bobbin item [2] in the winding machine with primary side oriented to the left hand side. Start at Pin 8 temporarily. Wind 18 bifilar turns of item [3] from right to left. Wind uniformly with tight tension across winding area. Finish on pin 3 Fold and attach the starting lead to pin 1 Use two layers of item [7] for basic insulation. Start at pin 2 wind 36 turns of item [3] from left to right, apply one layer of item [7]. Continue winding on a second layer. Wind 36 turns from right to left, apply one layer of item [7]. On a third layer wind 36 turns from left to right. Wind with tight tension across entire bobbin. Finish at pin 1 Use two layers of item [7] for basic insulation. Start at Pin 8 temporarily, wind 7 trifilar turns of item [4]. Wind from right to left with tight tension in a single layer across entire width of bobbin. Finish on Pin 1. Cut the starting lead right where the winding begins Use two layer of item [7] for basic insulation. Start at Pins 8. Wind 8 bifilar turns of item [6] Spread turns evenly across bobbin. Finish on Pin 6. Use two layer of item [7] for basic insulation. Assembly cores halves. Wind two turns of item [5] around the core. The wire should be placed very close to the primary pin side of the bobbin. Terminate the wire at pin 1. Varnish impregnate (item [8]). Cut pins 4,5,7,9,and 10 of Bobbin [2] Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 7 Transformer Spreadsheets ACDC_TNY-II_Rev1_1_032701 INPUT Copyright Power Integrations Inc. 2001 ENTER APPLICATION VARIABLES VACMIN 90 VACMAX 265 fL 47 VO 5.4 PO 4.468979 62 n 0.67 Z 0.5 tC 3 CIN ENTER TinySwitch-II VARIABLES TNY-II INFO OUTPUT UNIT Volts Volts Hertz Volts Watts Efficiency Estimate Loss Allocation Factor mSecon Bridge Rectifier Conduction Time Estimate ds uFarads Input Filter Capacitor 9.4 TNY264 Chosen Device ILIMITMIN ILIMITMAX fS fSmin fSmax VOR VDS VD KP TNY264 Power Out 0.233 0.267 132000 120000 144000 80 10 0.5 Universa 115 Doubled/230V l 6W 9W Amps Amps Hertz Hertz Hertz Volts Volts Volts 0.60 ENTER TRANSFORMER CORE/CONSTRUCTION VARIABLES Core Type EE16 Core EE16 P/N: Bobbin EE16_BOBBIN P/N: AE 0.192 cm^2 LE 3.5 cm AL 1140 nH/T^2 BW 8.6 mm M 0 mm L NS ACDC_TNYII_Rev1_1_032701.xls: TinySwitch-II Continuous/Discontinuous Flyback Transformer Design Spreadsheet TRANSFORMER 1 Minimum AC Input Voltage Maximum AC Input Voltage AC Mains Frequency Output Voltage Output Power 3 8 TINYSwitch Minimum Current Limit TINYSwitch Maximum Current Limit TINYSwitch Switching Frequency TINYSwitch Minimum Switching Frequency (inc. jitter) TINYSwitch Maximum Switching Frequency (inc. jitter) Reflected Output Voltage TINYSwitch on-state Drain to Source Voltage Output Winding Diode Forward Voltage Drop Ripple to Peak Current Ratio (0.6<KRP<1.0 : 1.0<KDP<6.0) PC40EE16-Z BE-16-118CPH 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) Number of Primary Layers Number of Secondary Turns DC INPUT VOLTAGE PARAMETERS VMIN VMAX 73 Volts 375 Volts Minimum DC Input Voltage Maximum DC Input Voltage CURRENT WAVEFORM SHAPE PARAMETERS DMAX IAVG IP IR IRMS 0.56 0.09 0.23 0.14 0.13 Amps Amps Amps Amps Maximum Duty Cycle Average Primary Current Minimum Peak Primary Current Primary Ripple Current Primary RMS Current TRANSFORMER PRIMARY DESIGN PARAMETERS LP NP ALG BM BAC ur LG 2035 108 173 2609 683 1654 0.12 uHenries Primary Inductance Primary Winding Number of Turns nH/T^2 Gapped Core Effective Inductance Gauss Flux Density, IP (BP<3000) Gauss AC Flux Density for Core Loss Curves (0.5 X Peak to Peak) Relative Permeability of Ungapped Core mm Gap Length (Lg > 0.1 mm) Page 10 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 BWE OD INS DIA AWG CM CMA Cell Phone Adapter TNY264 25.8 0.24 0.05 0.19 33 April 5, 2004 mm mm mm mm AWG Effective Bobbin Width Maximum Primary Wire Diameter including insulation Estimated Total Insulation Thickness (= 2 * film thickness) Bare conductor diameter Primary Wire Gauge (Rounded to next smaller standard AWG value) 51 Cmils Bare conductor effective area in circular mils 405 Cmils/A Primary Winding Current Capacity (200 < CMA < 500) mp TRANSFORMER SECONDARY DESIGN PARAMETERS (SINGLE OUTPUT / SINGLE OUTPUT EQUIVALENT) Lumped parameters ISP 3.16 Amps Peak Secondary Current ISRMS 1.51 Amps Secondary RMS Current IO 0.83 Amps Power Supply Output Current IRIPPLE 1.27 Amps Output Capacitor RMS Ripple Current CMS 303 Cmils Secondary Bare Conductor minimum circular mils AWGS 25 AWG Secondary Wire Gauge (Rounded up to next larger standard AWG value) DIAS 0.46 mm Secondary Minimum Bare Conductor Diameter ODS 1.08 mm Secondary Maximum Outside Diameter for Triple Insulated Wire INSS 0.31 mm Maximum Secondary Insulation Wall Thickness VOLTAGE STRESS PARAMETERS VDRAIN PIVS Page 11 of 22 563 Volts 33 Volts Maximum Drain Voltage Estimate (Includes Effect of Leakage Inductance) Output Rectifier Maximum Peak Inverse Voltage Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 8 Performance Data All measurements performed at room temperature, 60 Hz input frequency. 8.1 Efficiency EFFICIENCY VS LINE VOLTAGE 70 Output Efficiency (%) 60 50 40 30 Iout=650mA 20 10 0 80 100 120 140 160 180 200 220 240 260 280 Input Voltage (AC) Figure 7- Efficiency vs. Input Voltage, Room Temperature, 60 Hz. EFFICIENCY VS OUTPUT CURRENT 70 Output Efficiency (%) 60 50 40 30 Vin=115 Vin230 20 10 0 0 100 200 300 400 500 600 700 Output Current (mA) Figure 8. Efficiency VS Output Load. Room Temperature, 60 Hz. Page 12 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 8.2 Cell Phone Adapter TNY264 April 5, 2004 No-load Input Power NO LOAD INPUT POWER 0.40 0.35 0.30 Input power (W) 0.25 0.20 0.15 0.10 0.05 0.00 80 100 120 140 160 180 200 220 240 260 280 Input Voltage (AC) Figure 9- Zero Load Input Power vs. Input Line Voltage, Room Temperature, 60 Hz. 8.3 Output Characteristic. OUTPUT CHARACTERISTIC 6 5.7 Output Voltage (DC) 5.1 5 4 3 o Vin=115V Vin=230 2 1 0 0 100 200 300 400 500 600 700 800 Output Current (mA) Figure 10 –Output Characteristic, 25 oC Page 13 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 OUTPUT CHARACTERISTIC AT VIN=230V 6 5.7 5.1 Output Voltage (DC) 5 4 3 o Esternal Temp=40C External Temp= 25C External Temp=0C 2 1 0 0 100 200 300 400 500 600 700 800 Output Current (mA) Figure 11. Output Characteristic at different ambient temperatures 8.4 Line Regulation LINE REGULATION 8 Output Voltage (DC) 7 6 5 4 3 Iout=650mA 2 1 0 80 100 120 140 160 180 200 220 240 260 280 Line Voltage (AC) Figure 12 – Line Regulation, Room Temperature, Full Load. Page 14 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 9 Thermal Performance Measurements were done with the supply enclosed in its case. Temperature (°C) Item Page 15 of 22 Vin=90VAC Vin=115VAC Vin=230VAC Ambient (C) 25 25 25 Transformer (T1) 73 70 69 Blocking Diode (D5) 71 67 65 TinySwitch-II (U1) 97 77 69 Output Rectifier (D7) 69 68 67 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 10 Waveforms 10.1 Drain Voltage and Current, Normal Operation Figure 13 - 90 VAC, Full Load. Upper: IDRAIN, 0.1 A / div Lower: VDRAIN, 100 V, 5 µs / div Figure 14 - 264 VAC, Full Load Upper: IDRAIN, 0.1 A / div Lower: VDRAIN, 200 V / div 10.2 Output Voltage Start-up Profile Figure 15 - Start-up Profile, 115VAC 1 V, 2 ms / div. Page 16 of 22 Figure 16 - Start-up Profile, 230 VAC 1 V, 2 ms / div. Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 10.3 Drain Voltage and Current Start-up Profile Figure 17 - 90 VAC Input and Maximum Load. Upper: IDRAIN, 0.1 A / div. Lower: VDRAIN, 100 V & 5us / div. Figure 18 - 264 VAC Input and Maximum Load. Upper: IDRAIN, 0.1 A / div. Lower: VDRAIN, 200 V & 2us / div. 10.4 Load Transient Response (75% to 100% Load Step) In the figures shown below, the oscilloscope was triggered using the load current step as a trigger source. Figure 19 – Transient Response, 115 VAC, 75-10075% Load Step. Top: Load Current, 0.2 A/div. Bottom: Output Voltage 200 mV, 1ms / div. Page 17 of 22 Figure 20 – Transient Response, 230 VAC, 75-10075% Load Step Upper: Load Current, 0.2 A/ div. Bottom: Output Voltage 200mV, 1ms / div. Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 10.5 Out put Ripple Measurements 10.5.1 Ripple Measurement Technique For DC output ripple measurements, a modified oscilloscope test probe must be utilized in order to reduce spurious signals due to pickup. Details of the probe modification are provided in Figure 21 and Figure 22. The 5125BA probe adapter is affixed with two capacitors tied in parallel across the probe tip. The capacitors include one (1) 0.1 µF/50 V ceramic type and one (1) 10.0 µF/50 V aluminum electrolytic. The aluminum electrolytic type capacitor is polarized, so proper polarity across DC outputs must be maintained (see below). Probe Ground Probe Tip Figure 21 - Oscilloscope Probe Prepared for Ripple Measurement. (End Cap and Ground Lead Removed) Figure 22 - Oscilloscope Probe with Probe Master 5125BA BNC Adapter. (Modified with wires for probe ground for ripple measurement, and two parallel decoupling capacitors added) Page 18 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 10.5.2 Measurement Results Figure 23 – Output Ripple, 85 VAC, Full Load. 10us, 50 mV / div Figure 24 - Output Ripple, 115 VAC, Full Load. 10us, 50 mV / div Figure 25 – Output Ripple, 230 VAC, Full Load. 10us, 50 mV /div Page 19 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 11 Conducted EMI Figure 26 - Conducted EMI, Maximum Steady State Load, 115 VAC, 60 Hz, and EN55022 B Limits. Figure 27 - Conducted EMI, Maximum Steady State Load, 230 VAC, 60 Hz, and EN55022 B Limits. Page 20 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 12 Revision History Date April 5, 2004 Page 21 of 22 Author VC Revision 1.0 Description & changes Initial release Reviewed AM / VC Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com DER-35 Cell Phone Adapter TNY264 April 5, 2004 For the latest updates, visit our Web site: www.powerint.com Power Integrations may make changes to its products at any time. Power Integrations has no liability arising from your use of any information, device or circuit described herein nor does it convey any license under its patent rights or the rights of others. POWER INTEGRATIONS MAKES NO WARRANTIES 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 circuits external to the products and transformer construction) 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. The PI Logo, TOPSwitch, TinySwitch, LinkSwitch, and EcoSmart are registered trademarks of Power Integrations. PI Expert and DPA-Switch are trademarks of Power Integrations. © Copyright 2004, Power Integrations. WORLD HEADQUARTERS Power Integrations 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] CHINA (SHENZHEN) Power Integrations International Holdings, Inc. Rm# 1705, Bao Hua Bldg. 1016 Hua Qiang Bei Lu, Shenzhen, Guangdong, 518031, China Phone: +86-755-8367-5143 Fax: +86-755-8377-9610 e-mail: [email protected] ITALY Power Integrations s.r.l. Via Vittorio Veneto 12, Bresso, Milano, 20091, Italy Phone: +39-028-928-6001 Fax: +39-028-928-6009 e-mail: [email protected] SINGAPORE (ASIA PACIFIC HEADQUARTERS) Power Integrations, Singapore 51 Newton Road, #15-08/10 Goldhill Plaza, Singapore, 308900 Phone: +65-6358-2160 Fax: +65-6358-2015 e-mail: [email protected] AMERICAS Power Integrations, Inc. 4335 South Lee Street, Suite G, Buford, GA 30518, USA Phone: +1-678-714-6033 Fax: +1-678-714-6012 e-mail: [email protected] GERMANY Power Integrations, GmbH Rueckertstrasse 3, D-80336, Munich, Germany Phone: +49-895-527-3910 Fax: +49-895-527-3920 e-mail: [email protected] JAPAN Power Integrations, K.K. Keihin-Tatemono 1st Bldg. 12-20 Shin-Yokohama, 2-Chome, Kohoku-ku, Yokohama-shi, Kanagawa 222-0033, Japan Phone: +81-45-471-1021 Fax: +81-45-471-3717 e-mail: [email protected] TAIWAN Power Integrations International Holdings, Inc. 17F-3, No. 510, Chung Hsiao E. Rd., Sec. 5, Taipei, Taiwan 110, R.O.C. Phone: +886-2-2727-1221 Fax: +886-2-2727-1223 e-mail: [email protected] CHINA (SHANGHAI) Power Integrations International Holdings, Inc. Rm 807, Pacheer, Commercial Centre, 555 Nanjing West Road, Shanghai, 200041, China Phone: +86-21-6215-5548 Fax: +86-21-6215-2468 e-mail: [email protected] INDIA (TECHNICAL SUPPORT) Innovatech 261/A, Ground Floor 7th Main, 17th Cross, Sadashivanagar Bangalore, India, 560080 Phone: +91-80-5113-8020 Fax: +91-80-5113-8023 e-mail: [email protected] KOREA Power Integrations International Holdings, Inc. 8th Floor, DongSung Bldg. 17-8 Yoido-dong, Youngdeungpo-gu, Seoul, 150-874, Korea Phone: +82-2-782-2840 Fax: +82-2-782-4427 e-mail: [email protected] UK (EUROPE & AFRICA HEADQUARTERS) 1st Floor, St. James’s House East Street Farnham, Surrey GU9 7TJ United Kingdom Phone: +44-1252-730-140 Fax: +44-1252-727-689 e-mail: [email protected] APPLICATIONS HOTLINE World Wide +1-408-414-9660 APPLICATIONS FAX World Wide +1-408-414-9760 ER or EPR template – Rev 3.4 – Single sided Page 22 of 22 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com