STEVAL-ISV019V1

STEVAL-ISV019V1 Evaluation board for SPV1050 ULP energy harvester and battery charger – boost configuration Data brief Description The STEVAL-ISV019V1 is an evaluation board based on the ultralow power energy harvester and battery charger SPV1050. For any detail related to the SPV1050 features and performances please refer to the datasheet. The evaluation board implements the boost configuration of the DC-DC converter and has the purpose of enhancing the SPV1050 based applications development by testing the silicon performance thanks to many jumpers and test points, and by helping to find out the best system configuration to make the SPV1050 device working at the most of efficiency. The STEVAL-ISV019V1 is optimized to: Harvest energy from PV panels supplying 0.5 V ≤ VMP ≤ 2.5 V and 30 µA ≤ IMP ≤ 20 mA. Features Charge a battery with 3.7 V undervoltage protection threshold (VUVP) and 4.2 V end of charge voltage threshold (VEOC). • First startup at Vin = 500 mV • Input voltage working range: 150 mV ≤ Vin ≤ VEOC • End of charge battery voltage: VEOC = 4.25 V • Battery undervoltage protection: VUVP = 3.7 V Applications • Charge any battery chemistry, including lithium based, NiMH, solid state thin film and supercapacitor. • WSN, HVAC, building and home automation, industrial control, access control, smart lighting, asset and livestock positioning and tracking, surveillance. Nevertheless, few easy changes on the application components (input and output resistor partitioning, CIN capacitor) allow to use a different PV panel and source (like TEG), and a battery by setting the VMPP_SET, the VUVP and the VEOC thresholds according to the new source and load. More in detail, operating ranges can be extended as follows: VMP from 150 mV up to 5 V, IMP up to 100 mA, VUVP down to 2.2 V and VEOC up to 5.3 V. • Body area network, sportswear, fitness. November 2014 DocID025591 Rev 3 For further information contact your local STMicroelectronics sales office. 1/9 www.st.com Schematic and bill of material 1 STEVAL-ISV019V1 Schematic and bill of material The schematic, bill of material and gerber files can be downloaded from the Design resources tab of the STEVAL-ISV019V1 product folder on www.st.com. 2/9 DocID025591 Rev 3 STEVAL-ISV019V1 Figure 1. Schematic &1   73 &1  /  39     &  )  &   73  73 *1' &1 9%$77 39 73 - 033 8  033  73 0336(7  0336(7 0335() 6*1' /'2B(1 5    - 5  73         & Q) *1' /'2 &   639                            %$77B2. %$77B&+*  6725( 9%$77 &21) /'2 /'2 /'2B(1         2873876 39  73      893 (2& %$77B2. %$77B&+* DocID025591 Rev 3 -  5 /'2 ,1B/9 3*1' /B+9 ,1B+9   (;7B683  39,1 6725( ,1B/9  5     & Q)  & Q) 6725( 73  893 5 6:      (2&   &1     73 6725( 5  73 /'2B(1  *1'   6725(   $09 3/9 Schematic and bill of material  6:  Sect. Item Q.ty Reference Part / value 1 1 U1 SPV1050 2 1 CN1 2-ways screw connector 3 1 C1 4.7 µF Toler. % 15% DocID025591 Rev 3 DC-DC input section 15% Voltage Technol. Watt current info. 16 V Package Manufacturer Manufacturer code VFQFPN 3 x 3 x 1 20L (code A0BR) ST SPV1050 TE Connectivity 282834-2 0805 16 V 0805 Murata 4 0 C2 (DNM) 4.7 µF 5 3 J1, J2, J3 jumper 8 1 R1 0Ω 1% 0805 VISHAY CRCW08052M7 0FKEA 9 1 R2 1.5 MΩ 1% 0805 VISHAY CRCW08051M5 0FKEA 10 1 R3 8.2 MΩ 1% 0805 YAGEO 232273468205 11 1 L1 22 µH 20% Coilcraft LPS4018223ML_ 12 1 C8 10 nF 15% Pitch 2.54 mm 16 V X7R Murata GCM21BR71C4 75KA73L Input connector for PV panel or TEG Input capacitance GCM21BR71C4 75KA73L TH 0603 More information Schematic and bill of material 4/9 Table 1. Bill of material Enable/disable MPPT Murata GRM188R71C1 03KA01D Resistor partitioning for MPP track/setting DC-DC inductor Voltage sampling time constant capacitance STEVAL-ISV019V1 Sect. Item Q.ty Reference Part / value Toler. % Battery section LDOs section DocID025591 Rev 3 13 1 CN4 2-way screw connector 14 1 C9 47 µF 20% 15 1 R4 6.2 MΩ 16 1 R5 17 1 18 19 Voltage Technol. Watt current info. Manufacturer Manufacturer code More information TE Connectivity 282834-2 Connector for external supply of pin STORE 0805 TDK 5% 0805 RS RS-0805-6m25%-0.125W 499 kΩ 1% 0805 VISHAY CRCW0805499 KFKEA R6 2.7 MΩ 1% 0805 VISHAY CRCW08052M7 0FKEA 1 CN2 8-way screw connector TE Connectivity 282836-8 2 C6, C7 100 nF 2 SW1, SW2 5-pin male Stripline 23 1 CN3 4-way screw connector X7R Pitch 2.54 mm 0603 KEMET C2012X5R1A47 6M125AC Resistor partitioning for UVP, EOC, protection setting Connector for battery and battery status signals C0603C104K4R Tank capacitor for LDOs AC Close 2 - 3: LDO disabled Close 1 - 2: LDO enabled Floating: external control through CN3 TH TE Connectivity 282836-4 Connector for LDOs enable connection 5/9 Schematic and bill of material 21 10% 10 V Package STEVAL-ISV019V1 Table 1. Bill of material (continued) Sect. Item Q.ty Reference Part / value Toler. % Voltage Technol. Watt current info. Package Manufacturer Manufacturer code More information List of test points DocID025591 Rev 3 25 1 TP1 True hole PV+ pin sensing and soldering 26 1 TP2 True hole MPP pin sensing and soldering 27 1 TP3 True hole MPP-SET pin sensing and soldering 28 1 TP4 True hole STORE pin sensing and soldering 29 1 TP5 True hole ULP pin sensing and soldering 30 1 TP6 True hole EOC pin sensing and soldering 31 1 TP7 True hole GND pin sensing and soldering 32 1 TP8 True hole GND pin sensing and soldering 33 1 TP9 True hole IN_LV pin sense (for probe scope) 34 1 TP10 True hole GND pin sensing (for probe scope) Schematic and bill of material 6/9 Table 1. Bill of material (continued) STEVAL-ISV019V1 STEVAL-ISV019V1 2 Layout Layout From Figure 2 to Figure 4 show the component placement and the layout (top and bottom views) of the STEVAL-ISV019V1. Figure 2. Layout - silkscreen view Figure 3. Layout - top view Figure 4. Layout - bottom view DocID025591 Rev 3 7/9 9 Revision history 3 STEVAL-ISV019V1 Revision history Table 2. Document revision history 8/9 Date Revision Changes 27-Nov-2013 1 Initial release. 29-Apr-2014 2 Updated Section : Features on page 1 (updated values of “First startup at Vin” and “Input voltage working range”). Updated Section : Description on page 1 (updated values of “Harvest energy from PV panels supplying”, added extended operating ranges). Updated Section 1: Schematic and bill of material on page 2 (updated web link). Updated Figure 1: Schematic on page 3 (updated value of C9 capacitor, minor modifications). Updated Table 1: Bill of material on page 4 (removed “PV panel” item, updated values and manufacturer information of C9 capacitor, updated “Technol. info.” of J1, J2, J3 jumper, quantity of R6 item, item numbers and “More information” for several items). Minor modifications throughout document. 13-Nov-2014 3 Updated figure in cover page. DocID025591 Rev 3 STEVAL-ISV019V1 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2014 STMicroelectronics – All rights reserved DocID025591 Rev 3 9/9 9