Related Manuals for Semtech TSDMRX-19V20W-EVM
Summary of Contents for Semtech TSDMRX-19V20W-EVM
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Page 1: User Guide
TSDMRX-19V20W-EVM Wireless Charging Receiver WIRELESS CHARGING LinkCharge™ 20 Series User Guide TSDMRX-19V20W-EVM www.semtech.com... -
Page 2: Table Of Contents
Semtech solutions for wireless charging systems. Sufficient information is provided to support the engineer in all aspects of adding wireless charging support to their products. Semtech offers a range of solutions to meet the needs of a wide range of system developers. Developers are provided with all the information on how this EVM was built as a starting point for their own designs using the TS81000 and other Semtech components. -
Page 3: Wireless Charging Concepts
TSDMRX-19V20W-EVM. Should the TSDMRX-19V20W-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
EVM is provided to make the process as efficient as possible. The key technology components of the EVM are a trio of Semtech integrated circuits, the TS81000, TS94033, and TS30042. The TS81000 provides the Qi compliant communications and control for wireless receivers of up to 40+ watts. -
Page 5: Standard Use
As such, equipment with complex charging requirements can be precisely supported by the TSDMRX-19V20W-EVM and only the desired amount of power is provided. If at any time an error is detected, transmission is halted. To restart, the TSDMRX-19V20W-EVM must be removed from the range of the transmitter and returned to the target zone to start a new transaction. - 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 EVM, you can determine the efficiency of the power transfer through the system. For the EVMs used here(TSDMRX-19V20W-EVM on TSDMTX-19V2-EVM), the diagram below demonstrates that efficiency is a function of output current, and runs about 85% at higher power levels, assuring good efficiency and minimal heat dissipation concerns.
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Page 8: Documentation
Documentation The following sections document the hardware design of the TSDMRX-19V20W-EVM. This information can be used to better understand the functionality of the design, as well as assist in creating your own hardware solution based on this design. A. Block Diagram The TSDMRX-19V20W-EVM may be divided into a number of sub-blocks as show in the diagram: Antenna: Transmit –... -
Page 9: Schematic
Below are two copies of the schematic. The first, annotation has been added to indicate which part of the block diagram each component is a member of. The second will allow better use in print-out form, as the landscape orientation allows a larger image to be provided. www.semtech.com Wireless Charging 8 of 17 User Guide Rev 1.03 TSDMRX-19V20W-EVM Semtech... - Page 10 Wireless Charging 9 of 17 User Guide Rev 1.03 TSDMRX-19V20W-EVM Semtech...
- Page 11 VAC1 VCC3V3 COIL 0.04 47nF 50V 24uH 10nF TIE1 VDDR 100nF 47nF 50V 10uF 10uF 100nF DC_CURRENT DC_CURRENT TIE2 VCC3V3 100nF VOS_REF 10nF 50V TS94033 10nF VAC2 TIE3 PGND VAC1 VAC2 ZERO_CROSS ZERO_CROSS VCC3V3 22nF 22nF 4.7nF 4.7nF EN_MOD1 EN_MOD2 MIN_LD1 MIN_LD2 EN_MOD1...
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Page 12: Input Output
VCC3V3 VCC3V3 I_LIMIT INPUT OUTPUT VACDET I_LIMIT EN_MOD1 EN_MOD EN_MOD1 LEDR 10uF 10nF MIN_LD2 MIN_LD2 6.3V 6.3V VREF ENABLE VREF DC_CURRENT AMUX DC_CURRENT SMB_SCL 5.1V GPIO4 SMB_SDA GPIO5 TS31223 MIN_LD1 EN_MOD2 GPIO1 GPIO6 EN_MOD2 VOUT_HI PDC_VOLTAGE GPIO2 GPIO7 ZERO_CROSS DEBUG/LEDG ZERO_CROSS GPIO3 RESET... -
Page 13: Bill Of Materials "Bom
C. Bill Of Materials “BOM” Below is a listing of the parts used in the TSDMRX-19V20W-EVM. An excel spreadsheet file with this information is available on the Semtech website as an added convenience. Designator Description Value Footprint Manufacturer ManufacturerCode Quantity... -
Page 14: Board Layout
D. Board Layout The diagram below shows the locations of the components used in the TSDMRX-19V20W-EVM PCB. Note especial- ly that the majority of the board area is devoted to pinouts for testability, and that the actual circuit implementa- tion footprint is 16mm x 31mm. -
Page 15: Board Layers
E. Board Layers The TSDMRX-19V20W-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. -
Page 16: Faqs
Q: What if my questions weren’t answered here? A: Please visit the Semtech website as described on the next page. An updated FAQ as well as latest firmware for the TSDMRX-19V20W-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 17: 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 18: 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.