Related Manuals for Semtech TSWIRX-LI-EVM
Summary of Contents for Semtech TSWIRX-LI-EVM
- Page 1 WIRELESS CHARGING User Guide TSWIRX-LI-EVM Wireless Charging Receiver with Li-ion Battery Charger (Rev. 2.00) www.semtech.com...
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Page 2: Table Of Contents
Introduction The Semtech TSWIRX-LI-EVM is an evaluation platform for the test and experimentation of a wireless charging receiver based on the Semtech TS51223 fully-integrated IC for Wireless Power Receiver and SC810 linear sigle-cell Li-ion battery charger. This evaluation module, in conjunction with its compatible transmitter TSWITX-G2- EVM, provides a complete system solution for low power transmission, receiving and charging for wearable devices. -
Page 3: Wireless Charging Concepts
High power wireless systems are intended to support devices such as power tools, radio controlled (“RC”) devices such as drones, and other equipment requiring 15 to 100 watts of power. www.semtech.com TSWIRX-5V-EVM 2 of 14 User Guide Rev 1.00... -
Page 4: Product Description
Toward this end, all documentation for the EVM is provided to make the process as efficient as possible. The key technology in the EVM is the Semtech TS51223, which is a fully-integrated wireless power receiver for low-power, wearable applications that require a space-saving solution. Its 1 MHz switching frequency enables the use of small inductive components resulting in minimal board space and reduced costs. -
Page 5: Standard Use
Standard Use The TSWIRX-LI-EVM is easy to set up and use. Connect a USB cable from any USB port capable of driving up to 2 watts (most PCs will suffice) to the USB port on the TSWITX-G2- EVM. On application of power, its green LED should light, indicating the board is now active. - Page 6 USB port on the TSWITX-G2- EVM. On application of power, its green LED should light, indicating the board is now active. In order to use the TSWIRX-LI-EVM as a target receiver, simply place the receiver over the target circle (the ‘primary coil’ or ‘transmitter antenna’) on the transmitter EVM module, then connect a battery to the J2 of receiver.
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Page 7: Documentation
A. Block Diagram The TSWIRX-LI-EVM may be divided into a number of sub-blocks as show in the diagram below: Antenna: Transmit – primary coil providing power to the receiver; part of TSWITX-G2- EVM Antenna: Receive – secondary coil in the flux field of the transmit antenna; part of the 1 MHz resonant tank Rectifier –... -
Page 8: Schematic
B. Schematic Below are two copies of the schematic for the TSWIRX-LI-EVM. The first will be best when viewed on- screen, as it is normally oriented and can be zoomed in on for readability. The second will allow better use in print-out form, as the landscape orientation allows a larger image to be provided. For each, annotation has been added to indicate which part of the block diagram each component is a member of. - Page 9 22uF 100nF VAC1 VAC1 10nF RX COIL VAC2 VAC2 47nF Jumper COMM1 4.7uH COMM2 STATB FREQ IPRGM 22uF 22uF 22uF 22uF BATTERY ALERT 2.2uF MOD_EN SC810 8.06K MOD_CFG 4.7K 47nF TS51223 LED1 GREEN X5R capacitors. Will only have 15-20% of the rated capacitance at 5V. FREQ Some can be omitted if the load has capacitance.
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Page 10: Bill Of Materials "Bom
C. Bill Of Materials “BOM” Below is a listing of the parts used in the TSWIRX-LI-EVM. Note that only a few dozen components were required to implement the complete receiver solution. An excel spreadsheet file with this information is available on the Semtech website as an added convenience. -
Page 11: Board Layout
D. Board Layout The diagram below shows the locations of the components used in the TSWIRX-LI-EVM PCB. www.semtech.com TSWIRX-5V-EVM 10 of 14 User Guide Rev 1.00... -
Page 12: Board Layers
E. Board Layers The TSWIRX-LI-EVM PCB is based on a four layer design as shown below. The ground plane in layer two is recommended to reduce noise and signal crosstalk. The EVM placed all components on the top of the board for easier evaluation of the system. End product versions of this design can be made significantly smaller by distributing components on both sides of the board. -
Page 13: Faqs
Q: What if my questions weren’t answered here? A: Go to the Semtech website as described on the next page. An updated FAQ for the TSWIRX-LI-EVM is maintained there and may contain the answers you’re looking for. Your local Semtech FAE can also assist in answering your questions. -
Page 14: Next Steps
There you can find the downloadable copies of the schematic, BOM, and board artwork, as well as additional information on how to obtain Semtech wireless power products, from the chip level all the way to complete board modules, as your needs require. - Page 15 Information relating to this product and the application or design described herein is believed to be reliable, however such information is provided as a guide only and Semtech assumes no liability for any errors in this document, or for the application or design described herein. Semtech the latest relevant information before placing orders and should verify that such information is current and complete.
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