ADP5090-2-EVALZ User Guide UG-782 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluation Board for the ADP5090 Demonstration Platform for Energy Harvesting In addition, there is a low dropout (LDO) regulator on board that powers loads at lower voltage rails than the 3.5 V stored in the supercapacitor. The Alta Device PV cell is a light harvesting, dye sensitized PV cell. It is optimized for indoor environments, where lux levels of 200 lux to 1000 lux are typical. FEATURES Plug and play energy harvesting platform Compatible with Analog Devices, Inc., wireless sensor network (WSN) platform Solar panel harvester included RoHS compliant The ADP5090 is an ultralow power, synchronous, boost dc-to-dc regulator. The ADP5090 runs from input voltages of 0.38 V to 3.3 V and provides a high efficiency solution with integrated power switch, synchronous rectifier, and battery management. The demo platform provides an easy way to evaluate the device. GENERAL DESCRIPTION The ADP5090 demonstration platform is a plug and play evaluation board (ADP5090-2-EVALZ) for energy harvesting. It includes the photovoltaic (PV) panel and all of the power management to enable devices to be powered using energy harvesting. It is based on the Alta Device PV cell and the ADP5090 energy harvesting power management IC. Full details about the parts are available in the ADP5090 data sheet, which should be consulted when using the ADP5090-2-EVALZ. The system also plugs directly into the Analog Devices WSN demo platform. This user guide describes how to set up the board and how to use it for powering loads. The ADP5090 demonstration platform converts light energy to electrical energy. The PV panel converts the light to 0.8 V electrical energy. The ADP5090 boosts the input voltage from 0.8 V to 3.5 V and stores the energy in a supercapacitor. SYSTEM BLOCK DIAGRAM SOLAR PV PANEL ENERGY HARVESTING POWER MANAGEMENT OUTPUT CONNECTOR ENERGY STORAGE SUPERCAP BACKUP BATTERY Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 9 12830-001 ADP5090 UG-782 ADP5090-2-EVALZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Hardware .............................................................6 General Description ......................................................................... 1 Power Management of the Output (LDO) .................................6 System Block Diagram ..................................................................... 1 J4 Output Connector ....................................................................7 Revision History ............................................................................... 2 Bill Of Materials .................................................................................8 Demonstration Board Quick Start Guide ..................................... 3 Evaluation Board Schematic ........................................................... 4 Evaluation Board Layout ................................................................. 5 REVISION HISTORY 1/15—Revision 0: Initial Version Rev. 0 | Page 2 of 9 ADP5090-2-EVALZ User Guide UG-782 DEMONSTRATION BOARD QUICK START GUIDE This section explains how to connect the solar panel to the evaluation board and how to configure the evaluation board to start up and run. Connect J2_1 and J2_2, J2_9 and J2_10, and J2_11 and J2_12 on the ADP5090, as shown in Figure 3. 3. Place the system in a bright environment. Monitor the voltage on the supercapacitor using the TP3 (BATT) and TP5 (GND) test points. 4. The output is available on J4_1 on the ADP5090. 12830-003 Connect the 10-pin connector on the solar panel to the J3 10-pin connector on the ADP5090 as shown in Figure 2. Figure 3. Jumper Setup 12830-002 1. 2. Figure 2. ADP5090-2-EVALZ Hardware Rev. 0 | Page 3 of 9 UG-782 ADP5090-2-EVALZ User Guide EVALUATION BOARD SCHEMATIC J1 2 1 TP1 PGOOD 14 13 PGOOD REF DIS_SW 16 15 SW TP2 BAT 10 R8 4.7 TP3 BATT R2 2.32M 2 4 6 8 10 12 14 R9 3.3k B_CHRG U2 2 C4 TP4 VOUT 5 VOUT C5 GND 3 EN EN 1uF/10V C3 ADP161 VIN 2 L1 22uH R4 1.02Meg BATT 1 9 1 R1 2M R3 1.4Meg 1uF/10V 4 ADJ R14 1Meg 1 5 C2 B1 11 PGND MINOP C1 SUPERCAP R13 20k BAT 12 BACK_UP 8 4 AGND VIN R12 4.7M BACK_UP SYS CBP R11 4.99M BACK_UP BATT C6 10nF J3 R18 18M B_CHRG 1 2 3 4 5 6 7 8 9 10 J4 R16 NC R20 NC INPUT Figure 4. ADP5090 Evaluation Board J5 1 J7 INPUT1 1 2 3 4 5 6 7 8 9 10 J6 3 2 1 INPUT1 GND INPUT2 J8 3 2 1 INPUT1 VIN INPUT2 OUTPUT J9 1 INPUT2 Figure 5. Solar Panel Board Rev. 0 | Page 4 of 9 R17 NC 1 3 5 7 2 4 6 8 OUTPUT 12830-013 1 TP6 GND C8 4.7uF/10V 0.1uF TP5 GND C7 R21 NC PGOOD DIS_SW R19 0 EN 12830-004 R15 4.7M 1 R10 4.53M ADP5090 TERM 7 3 MPPT 2 SETSD 6 1 SETPG EXP 17 U1 1 R7 4.7M 4.7uF/10V R6 4.99M 1 3 5 7 9 11 13 VOUT 0.1uF R5 5.49M J2 PGOOD 1 DIS_SW 1 DIS_SW ADP5090-2-EVALZ User Guide UG-782 12830-005 EVALUATION BOARD LAYOUT 12830-006 Figure 6. Top Assembly Figure 7. Bottom Assembly Rev. 0 | Page 5 of 9 UG-782 ADP5090-2-EVALZ User Guide J2 EVALUATION BOARD HARDWARE A low dropout (ADP161) is included on the demo board. This regulator is used to choose different output voltages. Table 1 shows the jumper connections and the corresponding output voltage on the ADP5090-2-EVALZ. See the Evaluation Board Schematic section for more details. 12830-010 POWER MANAGEMENT OF THE OUTPUT (LDO) Figure 10. Jumper Position on Demonstration Board for Setting 3 J2 12830-008 12830-011 J2 Figure 11. Jumper Position on Demonstration Board for Setting 4 Figure 8. Jumper Position on Demonstration Board for Setting 1 J2 12830-009 12830-012 J2 Figure 12. Jumper Position on Demonstration Board for Setting 5 Figure 9. Jumper Position on Demonstration Board for Setting 2 Table 1. Power Management of Sensor Nodes Setting 1 2 3 4 5 VOUT (V) 3.5 V (LDO bypassed) 2V 2.4 V 3V 3.3 V Jumper Position J2_13 and J2_14 (see Figure 8) J2_1 and J2_2, J2_9 and J2_10, and J2_11 and J2_12 (see Figure 9) J2_1 and J2_2, J2_7 and J2_8, and J2_11 and J2_12 (see Figure 10) J2_1 and J2_2, J2_5 and J2_6, and J2_11 and J2_12 (see Figure 11) J2_1 and J2_2, J2_3 and J2_4, and J2_11 and J2_12 (see Figure 12) Rev. 0 | Page 6 of 9 ADP5090-2-EVALZ User Guide UG-782 J4 OUTPUT CONNECTOR The J4 output connector (see Figure 13) connects the demo board to the load. As well as providing power, it also has some other interface connections that allow more interaction between the demo board and the host microcontroller unit (MCU) on the load. It is directly compatible with the Analog Devices WSN demo boards. Table 2 shows the pinout of the J4 output connector and a brief description of the pin functions. Table 2. J4 Output Connector Pin No. 1 Mnemonic VOUT 2 3 4 5 PGOOD GND DIS_SW BATT 6 7 8 EN BACK_UP NC BACK_UP A detailed description of each J4 output connector pin follows: Description Output voltage supply from the demo board to the load PGOOD output signal from the ADP5090 Ground DIS_SW input signal to the ADP5090 Supercapacitor voltage (for battery monitoring) Enable LDO Backup voltage (for battery monitoring) No connect BATT J4 R17 NC R20 NC R21 NC 1 3 5 7 2 4 6 8 OUTPUT PGOOD DIS_SW R19 0 EN 12830-007 R16 NC Figure 13. J4 Output Connector Rev. 0 | Page 7 of 9 The VOUT pin (Pin 1) is the output voltage that the demonstration board delivers to the load. The ADP5090 has a programmable PGOOD signal. When the PGOOD threshold is reached, the ADP5090 sets the PGOOD pin (Pin 2) high. It is connected to the host MCU GPIO input. See the ADP5090 data sheet for more detailed information on this function. The GND pin (Pin 3) is the ground connection for the ADP5090. Connect the DIS_SW pin (Pin 4) to the host MCU GPIO output. If the host MCU requires the ADP5090 to temporarily halt the switching regulator function, set this pin high. See the ADP5090 data sheet for more detailed information on this function. Connect the BATT pin (Pin 5) to the analog input of the host MCU to monitor the voltage on the supercapacitor of the ADP5090 demo board. Populating R17 and R21 creates a resistor divider for cases where the MCU analog input range is lower than the supercapacitor voltage. The EN pin (Pin 6) is the enable control signal for the ADP161 LDO regulator on the ADP5090 demonstration board. Connect this pin to the host MCU GPIO output to enable or disable the ADP161. Connect the BACK_UP pin (Pin 7) to the analog input of the host MCU to monitor the voltage on the supercapacitor of the ADP5090 demonstration board. Populating R16 and R20 creates a resistor divider for cases where the MCU analog input range is lower than the supercapacitor voltage. The NC pin (Pin 8) is the no connect pin. Do not use this pin. UG-782 ADP5090-2-EVALZ User Guide BILL OF MATERIALS Table 3. Bill of Materials Quantity Reference Description Part Number Vendor 1 B1 CR2032 holder BC2032-F1 Memory Protection Devices 2 C1, C7 0.1 µF capacitors, C0603 GRM188R71H104KA93 Murata 2 C2, C8 4.7 µF, 10 V capacitors, C0603 GRM21BR61A475KA73 Murata 1 C3 Supercapacitor, 12 × 12 PB-5R0H104-R Cooper Bussmann 2 C4, C5 1 µF,10 V capacitors, C0603 GRM185R61A105KE36 Murata 1 C6 10 nF capacitor, C0603 GRM188R71H103KA01 Murata 1 J1 DIS_SW jumper, SIP2 61304011121 Würth Elektronik 1 J2 VOUT jumper, SIP14_dual 61001421121 Würth Elektronik 1 J3 INPUT jumper, SIP10_BtoB 61301011021 Würth Elektronik 1 J4 OUTPUT jumper, SIP8_2rows 61300821021 Würth Elektronik 1 J5 INPUT1 jumper, PV_INPUT Not applicable Alta Device 1 J6 GND jumper, SIP3 61304011121 Würth Elektronik 1 J7 OUTPUT jumper, SIP10 613010143121 Würth Elektronik 1 J8 VIN jumper, SIP3 61304011121 Würth Elektronik 1 J9 INPUT2 jumper, PV_INPUT Not Applicable Alta Device 1 L1 22 µH inductor, 3 × 3 EPL3015-223ML, 744025220 Coilcraft®, Würth Elektronik 1 R1 2 MΩ resistor, R0603 CRCW06032M00FKEA Vishay Dale 1 R2 2.32 MΩ resistor, R0603 CRCW06032M320FKEA Vishay Dale 1 R3 1.4 MΩ resistor, R0603 CRCW06031M40FKEA Vishay Dale 1 R4 1.02 MΩ resistor, R0603 CRCW06031M02FKEA Vishay Dale 1 R5 5.49 MΩ resistor, R0603 CRCW06035M49FKEA Vishay Dale 2 R6, R11 4.99 MΩ resistors, R0603 CRCW06034M99FKEA Vishay Dale 3 R7, R12, R15 4.7 MΩ resistors, R0603 CRCW06034M70FKEA Vishay Dale 1 R8 4.7 Ω resistor, R0805 CRCW08054R70JNEAIF Vishay Dale 1 R9 3.3 kΩ resistor, R0603 CRCW06033K3FKEA Vishay Dale 1 R10 4.53 MΩ resistor, R0603 CRCW06034M53FKEA Vishay Dale 1 R13 20 kΩ resistor, R0603 CRCW060320K0FKEA Vishay Dale 1 R14 1 MΩ resistor, R0603 CRCW06031M00FKEA Vishay Dale 4 R16, R17, R20, R21 NC (no connect) resistors, R0603 Not Applicable Not Applicable 1 R18 18 MΩ resistor, R0603 RK73B1JTTD186J KOA 1 R19 0 Ω resistor, R0603 CRCW06030000FKEA 1 TP1 PGOOD test point, SIP1 61304011121 Vishay Dale Würth Elektronik 1 TP2 BAT test point, SIP1 61304011121 Würth Elektronik 1 TP3 BATT test point, SIP1 61304011121 Würth Elektronik 1 TP4 VOUT test points, SIP1 61304011121 Würth Elektronik 2 TP5, TP6 GND test points, SIP1 61304011121 Würth Elektronik 1 U1 ADP5090 16-lead LFCSP ADP5090ACPZ-1-R7 Analog Devices 1 U2 ADP161 5-lead SOT-23 ADP161AUJZ-R7 Analog Devices Rev. 0 | Page 8 of 9 ADP5090-2-EVALZ User Guide UG-782 NOTES ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. ©2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG12830-0-1/15(0) Rev. 0 | Page 9 of 9