Semtech TSDMRX-5W-EVM User Manual

Wireless charging receiver

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TSDMRX-5W-EVM
Wireless Charging Receiver
WIRELESS CHARGING

User Guide

TSDMRX-5W-EVM
Dual-Mode (Qi and PMA) Receiver
Rev 2.00
www.semtech.com

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Summary of Contents for Semtech TSDMRX-5W-EVM

  • Page 1: User Guide

    TSDMRX-5W-EVM Wireless Charging Receiver WIRELESS CHARGING User Guide TSDMRX-5W-EVM Dual-Mode (Qi and PMA) Receiver Rev 2.00 www.semtech.com...
  • Page 2: Table Of Contents

    The Semtech TSDMRX-5W-EVM is an evaluation platform for test and experimentation of a wireless charging receiver based on a pair of high efficiency Semtech ICs: the TS81000 Receiver Controller for Wireless Power Systems and TS51111 Synchronous Rectifier and Charging IC. This evaluation module provides a complete system solution for both Qi and PMA standards of wireless power transfer, making this receiver an ideal platform compatible with the majority of wireless power systems in use today.
  • Page 3: Wireless Charging Concepts

    TSDMRX- 5W-EVM. Should the TSDMRX-5W-EVM require no further power, such as when a battery charge is completed, it can request no further power be sent, and the transmitter will reduce its output accordingly.
  • 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 components of the EVM are a pair of Semtech integrated circuits, the TS81000 and TS51111. The TS81000 provides the Qi/PMA compliant communications and control for wireless receivers of up to 40+ watts.
  • Page 5: Standard Use

    In this way, it is assured that power is only sent when and how it is required by the receiver. If required by the load, the TSDMRX-5W-EVM can actively increase or decrease its power request, and the transmitter will act accordingly. As such, equipment with complex charging requirements can be precisely supported by the TSDMRX-5W-EVM and only the desired amount of power is provided.
  • Page 6 The following information is not required in order to use the EVM, as what can be observed below is entirely managed by the Semtech TS81000 Wireless Controller. However, it allows the observer an opportunity to see how the receiver and transmitter actively manage the wireless power process.
  • Page 7 EVMs used here, the diagram below demonstrates that efficiency is a function of output current, and runs about 75% at higher power levels, assuring good efficiency and minimal heat dissipation concerns. Load vs Efficiency Output Current (A) www.semtech.com Wireless Charging 6 of15 User Guide Rev 2.0 TSDMRX-5W-EVM Jun 2016 Semtech...
  • Page 8: Documentation

    A. Block Diagram The TSDMRX-5W-EVM may be divided into a number of sub-blocks as show in the diagram below: Control &...
  • Page 9: Schematic

    B. Schematic Below are the schematics for the TSDMRX-5W-EVM. Annotation has been added to indicate which part of the block diagram each component is a member of: www.semtech.com Wireless Charging 8 of15 User Guide Rev 2.0 TSDMRX-5W-EVM Jun 2016 Semtech...
  • Page 10 Controller TS81000 Antenna www.semtech.com Wireless Charging 9 of 15 User Guide Rev 2.0 TSDMRX-5W-EVM Jun 2016 Semtech...
  • Page 11: Bill Of Materials "Bom

    C. Bill Of Materials “BOM” Below is a listing of the parts used in the TSDMRX-5W-EVM. An excel spreadsheet file with this information is available on the Semtech website as an added convenience. Designa- Val- Manufacturer Val 2 Description Manufacturer...
  • Page 12: Board Layout

    D. Board Layout The diagram below shows the locations of the components used in the TSDMRX-5W-EVM PCB. Note especially that the majority of the board area is devoted to pinouts for testability, and that the actual circuit implementation footprint is 17mm x 9mm, or about the size of a micro-SD card. Also worth noting is that this solution is comprised of essentially just two ICs with a few dozen surrounding resistors and capacitors –...
  • Page 13: Board Layers

    E. Board Layers The TSDMRX-5W-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 14: 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 TSDMRX-5W- 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 15: 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 16: Contact Information

    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.
  • Page 17 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Semtech TSDMRX-5W-EVM...

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