iW1818-EVAL Evaluation Board for 10W Single-Output Switch-Mode Power Supply 1 Description The iW1818-EVAL evaluation board implements a 10W power supply based on Dialog Semiconductor’s iW1818 AccuSwitch™ digital off-line power supply controller IC. The evaluation board supplies a 5V, 2A regulated output voltage using a primary-side controlled quasi-resonant flyback converter that meets the U.S. Department of Energy’s most recent level VI efficiency standard and the EU’s Code of Conduct, Version 5, Tier 2 standard for both active mode and no-load standby power consumption. The iW1818 controller integrates an 800V power BJT transistor to lower the power supply BOM cost and uses Dialog’s advanced PrimAccurate™ digital control technology to eliminate the need for external secondary-side feedback components, further reducing component count and cost, while improving reliability. It operates in quasi-resonant mode to improve efficiency and help meet EMI standards. This quasi-resonant operation and Dialog’s EZ-EMI® technology enable excellent EMI performance with minimal external filtering. Proprietary control technology allows high efficiency across a broad range of loads, which enables the iW1818 to meet stringent international standards for power supply efficiency. 2 Features ●● Wide input voltage range: 90VAC to 264VAC ●● Output voltage: 5V ●● Output current: 2A ●● Total output power: 10W max. ●● Integrated 800V BJT ●● EZ-EMI® technology: excellent EMI performance with a minimum of EMI filtering components ●● Quasi-resonant operation ●● Low component count and small PCB footprint ●● iW1818 IC protections: xx Output short-circuit, over-current, over-voltage ●● Active mode efficiency > 80% ●● Supports high capacitance loads up to 6,000mF xx Input voltage protection: brown-out, brown-in, unplug ●● Low no-load power: < 50mW (at 230 VAC) xx Over-temperature protection - internal sensor 3 Applications ●● Power Supplies for: xx White Goods xx Home Appliances xx Industrial Control xx Network Devices Evaluation Board Summary www.dialog-semiconductor.com Rev. 1.0 1 of 6 18-May-2016 © 2016 Dialog Semiconductor iW1818-EVAL Evaluation Board for 10W Single-Output Switch-Mode Power Supply WARNING Disclaimer for High Voltage (Mains Powered) Evaluation Boards Warning This evaluation board is powered by AC mains voltage. When powered, this evaluation board generates non-insulated high voltages which may produce electrical shock, burn, and/or fire hazards, resulting in risk of property damage, personal injury, and/or death. When the evaluation board is powered, never touch the board or its electrical circuits since they may be operating at high voltages that can cause an electrical shock hazard. TO BE USED FOR EVALUATION PURPOSES ONLY This board is intended for evaluation purposes only and not intended for commercial use in an end product. Any other use is strictly prohibited by Dialog Semiconductor. WORK AREA AND PERSONAL SAFETY This board should be used in a test area/laboratory specifically designed and designated for working with, and evaluating high-voltage electrical devices. Only trained and qualified professional personnel with experience, knowledge and training in the use of high-voltage electrical circuits should use this evaluation board. Trained personnel must use required personal protective equipment and required laboratory equipment when working with the evaluation board. The professional personnel operating this evaluation board and the test area/laboratory in which it is operated must be qualified according to the local regulations, guidelines and labor laws applicable to working with non-isolated mains voltages and high voltage circuits. An isolated housing is highly recommended when using this evaluation board. Use this evaluation board at your own risk. NOT AGENCY APPROVED This evaluation board has not been agency tested or approved for safety, technical performance, and/or regulatory requirements, such as electromagnetic interference or other technical regulatory or safety requirements. Evaluation Board Summary www.dialog-semiconductor.com Rev. 1.0 2 of 6 18-May-2016 © 2016 Dialog Semiconductor iW1818-EVAL Evaluation Board for 10W Single-Output Switch-Mode Power Supply 4 Evaluation Board Specifications The table below shows the electrical specifications of the evalution board specified at TA = 25ºC, unless otherwise noted. Symbol Min Voltage VIN 90 Frequency fLINE 47 Description Typ Max Units 264 VAC 63 Hz 50 mW 5.25 V 2 A 200 mVP_P Comment Input 50/60 No-load input power (230VAC) 2 wire Output Output voltage VOUT 4.75 Output current IOUT 0 Output ripple voltage 5.00 VRIPPLE Measured at the end of PCB Connected with 10mF E-cap and 100nF C-cap; IOUT = 2A@TA = 25ºC 20MHz Bandwidth Total Output Power Continuous output power POUT Over current protection OCP Active mode efficiency η 10 W 2.8 80.7 A Auto-restart % Average of efficiency measured at 25%/50%/75%/100% VIN = 115VAC Environmental Safety (Note 1) Ambient temperature Note 1: Designed to Meet UL1310 (up to 120VAC) Designed to Meet EN60335-1:2012 TAMB 0 40 ºC Free convection, sea level The iW1818-EVAL has been designed to meet EN60335-1:2012 and UL1310 (up to 120VAC), however individual boards have not been tested or verified to these standards. Evaluation Board Summary www.dialog-semiconductor.com Rev. 1.0 3 of 6 18-May-2016 © 2016 Dialog Semiconductor iW1818-EVAL Evaluation Board for 10W Single-Output Switch-Mode Power Supply 5 Schematic The schematic shown in Figure 5.1 is the complete schematic for the evalution board. The specific part numbers can be found in the Bill-of-Materials in section 6. F1 2A/250V CY1 CY2 220pF 220pF L1 220uH BR1 LMB8S AC + AC R2 1K R3 3.6M E1 E2 C3 470pF/500V + C1 10uF/400V R7 910R - + 1 C7 1nF R9 2R 5 7 8 U1 iW1818 VCC C C VSENSE 3 GND 2 ISENSE E 1 5V/2A 12 3 8 C51 + 10V/1000uF + C52 10V/1000uF R52 2.4K R12 22R D7 FS1D-L R11 1K 4 T1 CON2 D6 FS1M-L R4 3.6M C9 1nF D1 SBR20A45CT R5 220R L2 4.7uH CON1 R13 27R R6 910K C8 10uF/400V R10 16K 6 R17 110R 4 R18 2R0 C6 47pF R1 1R82 C5 100nF C4 10uF C2 22pF R8 3.6K R14 39K Figure 5.1 : Complete Evalution Board Schematic for the iW1818-EVAL Board. Evaluation Board Summary www.dialog-semiconductor.com Rev. 1.0 4 of 6 18-May-2016 © 2016 Dialog Semiconductor iW1818-EVAL Evaluation Board for 10W Single-Output Switch-Mode Power Supply 6 Bill of Materials Table 1: Bill-of-Materials List for EVB iW1818-EVAL Item Qty. Ref. Description Footprint Mfg. Part Number Manufacturer 1 1 U1 iW1818, Off-line digital PWM Controller with 4A/800V BJT co-packed, DIP 7 DIP-7 iW1818-00 Dialog Semiconductor 2 1 BR1 LMB8S,800V,1A,Bridge rectifier LMBS -1 LMB8S-TP Micro Commercial Components Corp. 3 2 C1, C8 10mmx16mm EKXJ401ELL100MJ16S Nippon Chemi-Con 4 5 6 7 8 9 10 11 12 1 1 1 1 1 2 2 2 1 C2 C3 C4 C5 C6 C7,C9 CY1,CY2 C51,C52 D1 0603 1206 1206 0805 0603 0805 Radial, Disc CE8X15 TO-220AB CC603JRNPO8BN220 CC1206KKX7RBBB471 GRM31CR61H106KA12L CC0805KRX7R9BB104 CC0603KRNPO9BN470 CC0805KRX7R0BB102 DE1B3KX221KN4AN01F UPA1A102MPD1TD SBR20A45CT YAGEO Corporation YAGEO Corporation Murata Electronics YAGEO Corporation YAGEO Corporation YAGEO Corporation Murata Electronics Nichicon Diodes Incorporated 13 1 D6 FS1M-L, 1A1000V,Fast Recovery Rectifier (Trr=500ns) DO-214AC FS1M-LTP Micro Commercial Components Corp. 14 1 D7 FS1D-L, 1A200V,Fast Recovery Rectifier (Trr=150ns) DO-214AC FS1D-LTP Micro Commercial Components Corp. 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 F1 L1 L2 R1 R2 R3,R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R17 R18 R52 2A,250V, Fuse, Φ3.6X10mm 220uH,155mA,Color Ring Inductor, 0410 4.7uH,Chip Inductor(Chip Coil) 1.82Ω±1%,SMD-1206 1KΩ±5%,SMD-0805 3.6MΩ±5%,SMD-1206 220Ω±5%,SMD-1206 910KΩ±5%,SMD-1206 910Ω±5%,SMD-0805 3.6KΩ±1%,SMD-0603 2Ω±5%,SMD-0603 16KΩ±1%,SMD-0603 1KΩ±5%,SMD-0603 22Ω±5%,SMD-0805 27Ω±5%,SMD-0805 39KΩ±1%,SMD-0603 110Ω±5%,SMD-0603 2.0Ω±1%,SMD-1206 2.4KΩ±5%,SMD-0805 Axial-3.6x10 Axial-04x10 0805 1206 0805 1206 1206 1206 0805 0603 0603 RS0603 0603 0805 0805 0603 0603 1206 0805 0874002.MXEP 77F221J-TR-RC LQM21FN4R7M80L RC1206FR-071R82L RC0805JR-071KL RC1206JR-073M6L RC1206JR-07220RL RC1206JR-07910KL RC0805JR-07910RL RC0603FR-073K6L RC0603JR-072RL RC0603FR-0716KL RC0603JR-071KL RC0805JR-0722RL RC0805JR-0727RL RC0603FR-0739KL RC0603JR-07110RL RC1206FR-072RL RC0805JR-072K4L Littelfuse Inc. Bourns Inc. Murata Electronics YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation YAGEO Corporation 34 1 CON1 Serie 2169 - 7.50mm Horizatonal Entry Modular with Rising Cage Clamp - 3.5mm² Wires WR-TBL 691 216 910 002 Würth Elektronik 35 1 CON2 WR-TBL Terminal block-serie 101, 5.00mm - Modular-blue-Horizontal entry with pressure clamp - 12.6mm 691 101 710 002 Würth Elektronik 36 1 T1 EE20/10/6 (EF20),14-Pin EXT, THT, Horizontal for 5V2A 750 343 107 Würth Elektronik 37 4 Supporter Self-Retaining Spacer WA-SNSR ,Nylon 66, natural 702 917 000 Würth Elektronik CAP ALUM 10uF 20%,400V, Φ10X16mm, Lead Spacing: 5mm 22pF,25V,NPO,SMD-0603 470pF,500V,X7R,SMD-1206 10uF10%,50V,X5R,SMD-1206 100nF 10%,50V,X7R,SMD-0805 47pF 10%,10V,SMD-0603 1nF 10%,100V,X7R,SMD-0805 220pF,250V ,Y-cap 1000uF,10V,Φ8X20,E-CAP SBR20A45CT,20A,45V Evaluation Board Summary www.dialog-semiconductor.com Rev. 1.0 5 of 6 18-May-2016 © 2016 Dialog Semiconductor iW1818-EVAL Evaluation Board for 10W Single-Output Switch-Mode Power Supply Disclaimer This evaluation board is provided for evaluation purposes only and is not intended for commercial use in any end product. Dialog Semiconductor expressly disclaims all warranties, express, implied or statutory, including (but not limited to) the implied warranties of non-infringement, suitability for a specific application(s) or end product(s), product quality or reliability. All risks and liability regarding quality, use or performance of this evaluation board are those of the customer/user. The user, and/or user’s employer, if user is using this evaluation board for employer-related purposes, assumes all responsibility and liability for proper and safe handling of the evaluation boards and indemnify Dialog Semiconductor from any and all claims arising from use of the evaluation board. The user, and/or user’s employer, if user is using this evaluation board for employer-related purposes, understands that this evaluation board has not been agency tested or approved for safety, technical performance, and/or regulatory requirements, by any agency. This includes electromagnetic interference or other technical regulatory or safety testing and certifications. The user, and/or user’s employer, if user is using this evaluation board for employer-related purposes, assumes all responsibility for using this evaluation board in a test area or laboratory which is qualified and/or certified according to the local regulations, guidelines and labor laws applicable to working with non-isolated mains voltages and high voltage circuits. Information in this document is believed to be accurate and reliable. However, Dialog Semiconductor does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information. Dialog Semiconductor furthermore takes no responsibility whatsoever for the content in this document if provided by any information source outside of Dialog Semiconductor. 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